Yoshimura, Noriko’s team published research in Journal of Physical Chemistry B in 2019 | CAS: 616-47-7

1-Methyl-1H-imidazole(cas: 616-47-7) is actively involved in removing acid during the production of diethoxyphenylphosphine. It is used as an intermediate in organic synthesis.Reference of 1-Methyl-1H-imidazole

The author of 《Electronic States of Acetic Acid in a Binary Mixture of Acetic Acid and 1-Methylimidazole Depend on the Environment》 were Yoshimura, Noriko; Takahashi, Osamu; Oura, Masaki; Horikawa, Yuka. And the article was published in Journal of Physical Chemistry B in 2019. Reference of 1-Methyl-1H-imidazole The author mentioned the following in the article:

The unique characteristics of an acetic acid/1-methylimidazole (1-MI) mixture, showing higher elec. conductivity than either neat acetic acid or neat 1-MI, yet consisting of elec. neutral mols., are reported. We have applied soft X-ray spectroscopy to reveal the electronic states of acetic acid in the acetic acid/1-MI mixture at various mole fractions of acetic acid (χHOAc). The results show that the amount of acetic acid monomer increases in the region of especially high elec. conductivity and the amount of complex of acetic acid and 1-MI formed by sharing MOs increases in the low elec. conductivity region. There is a little amount of acetic acid monomer in the low elec. conductivity region because the complex inhibits acetic acid from creating its monomer. These results suggest the possibility that the acetic acid monomer is related to elec. conduction. In the experiment, the researchers used many compounds, for example, 1-Methyl-1H-imidazole(cas: 616-47-7Reference of 1-Methyl-1H-imidazole)

1-Methyl-1H-imidazole(cas: 616-47-7) is actively involved in removing acid during the production of diethoxyphenylphosphine. It is used as an intermediate in organic synthesis.Reference of 1-Methyl-1H-imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Amoruso, Giordano’s team published research in Journal of Physical Chemistry B in 2019 | CAS: 616-47-7

1-Methyl-1H-imidazole(cas: 616-47-7) is actively involved in removing acid during the production of diethoxyphenylphosphine. It is used as an intermediate in organic synthesis.Recommanded Product: 1-Methyl-1H-imidazole

In 2019,Journal of Physical Chemistry B included an article by Amoruso, Giordano; Taylor, Victoria C. A.; Duchi, Marta; Goodband, Emma; Oliver, Thomas A. A.. Recommanded Product: 1-Methyl-1H-imidazole. The article was titled 《Following Bimolecular Excited-State Proton Transfer between Hydroxycoumarin and Imidazole Derivatives》. The information in the text is summarized as follows:

The ultrafast dynamics of a bimol. excited-state proton transfer (ESPT) reaction between the photoacid 7-hydroxy-4-(trifluoromethyl)-1-coumarin (CouOH) and 1-methylimidazole (MI) base in aprotic chloroform-d1 solution were investigated using ultrafast transient IR (TRIR) and transient absorption (TA) spectroscopies. The excited-state lifetime of the photoacid in solution is relatively short (52 ps), which at the millimolar photoacid and base concentrations used in our study precludes any diffusion-controlled bimol. ESPT reactions. This allows the prompt ESPT reaction between hydrogen-bonded CouOH and MI mols. to be studied in isolation and the “”contact”” ESPT dynamics to be unambiguously determined Our time-resolved studies reveal that ultrafast ESPT from the CouOH moiety to hydrogen-bonded MI mols. occurs within ∼1 ps, tracked by unequivocal spectroscopic signatures of CouO-* photoproducts that are formed in tandem with HMI+. Some of the ESPT photoproducts subsequently π-stack to form exciplexes on a ∼35 ps time scale, minimizing the attractive Coulombic forces between the oppositely charged aromatic mols. For the concentrations of CouOH and MI used in our study (up to 8 mM), we saw no evidence for excited-state tautomerization of coumarin anions. After reading the article, we found that the author used 1-Methyl-1H-imidazole(cas: 616-47-7Recommanded Product: 1-Methyl-1H-imidazole)

1-Methyl-1H-imidazole(cas: 616-47-7) is actively involved in removing acid during the production of diethoxyphenylphosphine. It is used as an intermediate in organic synthesis.Recommanded Product: 1-Methyl-1H-imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Li, Li’s team published research in Journal of the American Chemical Society in 2017 | CAS: 7720-39-0

1H-Imidazol-2-amine(cas: 7720-39-0) belongs to anime. Amines have a free lone pair with which they can coordinate to metal centers. Amine–metal bonds are weaker because amines are incapable of backbonding, but they are still important for sensing applications.While stronger than hydrogen bonds, amine–metal bonds are still weaker than both covalent and ionic bonds.Related Products of 7720-39-0

Related Products of 7720-39-0In 2017 ,《Enhanced nonenzymatic RNA copying with 2-aminoimidazole activated nucleotides》 was published in Journal of the American Chemical Society. The article was written by Li, Li; Prywes, Noam; Tam, Chun Pong; O’Flaherty, Derek K.; Lelyveld, Victor S.; Izgu, Enver Cagri; Pal, Ayan; Szostak, Jack W.. The article contains the following contents:

Achieving efficient nonenzymic replication of RNA is an important step toward the synthesis of self-replicating protocells that may mimic early forms of life. Despite recent progress, the nonenzymic copying of templates containing mixed sequences remains slow and inefficient. Here we demonstrate that activating nucleotides with 2-aminoimidazole results in superior reaction kinetics and improved yields of primer extension reaction products. This new leaving group significantly accelerates monomer addition as well as trimer-assisted RNA primer extension, allowing efficient copying of a variety of short RNA templates with mixed sequences. In the experiment, the researchers used 1H-Imidazol-2-amine(cas: 7720-39-0Related Products of 7720-39-0)

1H-Imidazol-2-amine(cas: 7720-39-0) belongs to anime. Amines have a free lone pair with which they can coordinate to metal centers. Amine–metal bonds are weaker because amines are incapable of backbonding, but they are still important for sensing applications.While stronger than hydrogen bonds, amine–metal bonds are still weaker than both covalent and ionic bonds.Related Products of 7720-39-0

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Grauzeliene, Sigita’s team published research in Polymers (Basel, Switzerland) in 2021 | CAS: 616-47-7

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Electric Literature of C4H6N2

《Vegetable oil-based thiol-ene/thiol-epoxy resins for laser direct writing 3D micro-/nano-lithography》 was written by Grauzeliene, Sigita; Navaruckiene, Aukse; Skliutas, Edvinas; Malinauskas, Mangirdas; Serra, Angels; Ostrauskaite, Jolita. Electric Literature of C4H6N2This research focused onvegetable oil thiol ene epoxy resin laser direct writing; biobased polymer; click reactions; dual curing; laser direct writing; linseed oil; optical 3D printing; soybean oil; thiol-ene; thiol-epoxy. The article conveys some information:

The use of renewable sources for optical 3D printing instead of petroleum-based materials is increasingly growing. Combinations of photo- and thermal polymerization in dual curing processes can enhance the thermal and mech. properties of the synthesized thermosets. Consequently, thiol-ene/thiol-epoxy polymers were obtained by combining UV and thermal curing of acrylated epoxidized soybean oil and epoxidized linseed oil with thiols, benzene-1,3-dithiol and pentaerythritol tetra(3-mercaptopropionate). Thiol-epoxy reaction was studied by calorimetry. The changes of rheol. properties were examined during UV, thermal and dual curing to select the most suitable formulations for laser direct writing (LDW). The obtained polymers were characterized by dynamic-mech. thermal anal., thermogravimetry, and mech. testing. The selected dual curable mixture was tested in LDW 3D lithog. for validating its potential in optical micro- and nano-additive manufacturing The obtained results demonstrated the suitability of epoxidized linseed oil as a biobased alternative to bisphenol A diglycidyl ether in thiol-epoxy thermal curing reactions. Dual cured thermosets showed higher rigidity, tensile strength, and Young’s modulus values compared with UV-cured thiol-ene polymers and the highest thermal stability from all prepared polymers. LDW results proved their suitability for high resolution 3D printing-individual features reaching an unprecedented 100 nm for plant-based materials. Finally, the biobased resin was tested for thermal post-treatment and 50% feature downscaling was achieved. In the part of experimental materials, we found many familiar compounds, such as 1-Methyl-1H-imidazole(cas: 616-47-7Electric Literature of C4H6N2)

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Electric Literature of C4H6N2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Haddad, Boumediene’s team published research in Journal of Molecular Structure in 2019 | CAS: 616-47-7

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Recommanded Product: 616-47-7

《Para-xylyl linked bis-imidazolium ionic liquids: A study of the conformers of the cation and of the anion-cation hydrogen bonding》 was written by Haddad, Boumediene; Paolone, Annalisa; Drai, Mokhtar; Boumediene, Mostefa; Villemin, Didier; Belarbi, El-habib; Rahmouni, Mustapha; Bresson, Serge; Abbas, Ouissam. Recommanded Product: 616-47-7This research focused onxylyl imidazolium ionic liquid hydrogen bond conformer Raman spectrum. The article conveys some information:

In this work, two new para-xylyl linked bis-imidazolium Ionic Liquids (DILs), namely [p-C6H4(CH2ImMe)2][Cl2-] and [p-C6H4(CH2ImMe)2+][BF4-]2, are prepared from imidazolium salts using a simple procedure in two steps. A computational study of the conformers of [p-C6H4(CH2ImMe)2], performed by means of DFT calculations with the 6-31G** basis set and the B3LYP theory, evidences that nine possible geometries of the cation are stable points of the potential energy surface and, therefore, could be exptl. found in real compounds The IR and Raman spectra of the nine conformers are calculated and compared to the exptl. data. The occurrence of the trans configuration of the imidazolium rings in both compounds is strongly supported by this comparison. Finally, the cation-anion interactions were investigated in both DILs by means of NMR and Raman measurements, with a particular attention to the occurrence of hydrogen bonding. Both techniques indicate that hydrogen bonding is stronger in the sample containing Cl as anion. Moreover, the preferred site for hydrogen bonding is the C2 proton of the imidazolium ring; however, also the C(4) and C(5) protons of imidazolium, the methylene group and the Ph ring participate to the hydrogen bonding.1-Methyl-1H-imidazole(cas: 616-47-7Recommanded Product: 616-47-7) was used in this study.

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Recommanded Product: 616-47-7

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Purcell, Simon M.’s team published research in Journal of Physical Chemistry B in 2022 | CAS: 616-47-7

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Name: 1-Methyl-1H-imidazole

Name: 1-Methyl-1H-imidazoleIn 2022 ,《Surface Structure of Alkyl/Fluoroalkylimidazolium Ionic-Liquid Mixtures》 was published in Journal of Physical Chemistry B. The article was written by Purcell, Simon M.; Lane, Paul D.; DAndrea, Lucia; Elstone, Naomi S.; Bruce, Duncan W.; Slattery, John M.; Smoll, Eric J. Jr.; Greaves, Stuart J.; Costen, Matthew L.; Minton, Timothy K.; McKendrick, Kenneth G.. The article contains the following contents:

The gas-liquid interface of ionic liquids (ILs) is critically important in many applications, for example, in supported IL phase (SILP) catalysis. Methods to investigate the interfacial structure in these systems will allow their performance to be improved in a rational way. In this study, reactive-atom scattering (RAS), surface tension measurements, and mol. dynamics (MD) simulations were used to study the vacuum interface of mixtures of partially fluorinated and normal alkyl ILs. The underlying aim was to understand whether fluorinated IL ions could be used as additives to modify the surface structure of one of the most widely used families of alkyl ILs. The series of ILs 1-alkyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([Cnmim][Tf2N]) with n = 4-12 were mixed with a fixed-length, semiperfluorinated analog (1H,1H,2H,2H-perfluorooctyl)-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([C8mimF13][Tf2N]), forming [Cnmim](1-x)[C8mimF13]x[Tf2N] mixtures, where x is the bulk mole fraction of the fluorinated component. The RAS-LIF method combined O-atom projectiles with laser-induced fluorescence (LIF) detection of the product OH as a measure of surface exposure of the alkyl chains. For [C8mim](1-x)[C8mimF13]x[Tf2N] mixtures, RAS-LIF OH yields are below those expected from stoichiometry. There are quant. consistent neg. deviations from linearity of the surface tension. Both results imply that the lower-surface-tension fluoroalkyl material dominates the surface. A similar deficit is found for alkyl chain lengths n = 4, 6, 8, and 12 and for all (nonzero) x investigated by RAS-LIF. Accessible-surface-area (ASA) analyses of the MD simulations for [Cnmim](1-x)[C8mimF13]x[Tf2N] mixtures qual. reproduce the same primary effect of fluoro-chain predominance of the surface over most of the range of n. However, there are significant quant. discrepancies between MD ASA predictions and experiment relating to the strength of any n-dependence of the relative alkyl coverage at fixed x, and on the x-dependence at fixed n. These discrepancies are discussed in the context of detailed examinations of the surface structures predicted in the MD simulations. Potential explanations, beyond exptl. artifacts, include inadequacies in the classical force fields used in the MD simulations or the inability of simple ASA algorithms to capture dynamical factors that influence RAS-LIF yields. Side view of representative single MD snapshots of pure [Cnmim][Tf2N] (upper row) and [C8mim]0.75 [C8mimF13]0.25 [Tf2N] mixtures (lower row) for n = 4, 6, 8, and 12. Color scheme as in Figure.1-Methyl-1H-imidazole(cas: 616-47-7Name: 1-Methyl-1H-imidazole) was used in this study.

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Name: 1-Methyl-1H-imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Hung, Samantha T.’s team published research in Journal of Physical Chemistry B in 2021 | CAS: 616-47-7

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Computed Properties of C4H6N2

Computed Properties of C4H6N2In 2021 ,《Ultrafast Dynamics and Liquid Structure in Mesoporous Silica: Propagation of Surface Effects in a Polar Aprotic Solvent》 was published in Journal of Physical Chemistry B. The article was written by Hung, Samantha T.; Yamada, Steven A.; Zheng, Weizhong; Fayer, Michael D.. The article contains the following contents:

Enhancement of processes ranging from gas sorption to ion conduction in a liquid can be substantial upon nanoconfinement. Here, the dynamics of a polar aprotic solvent, 1-methylimidazole (MeIm), in mesoporous silica (2.8, 5.4, and 8.3 nm pore diameters) were examined using femtosecond IR vibrational spectroscopy and mol. dynamics simulations of a dilute probe, the selenocyanate (SeCN-) anion. The long vibrational lifetime and sensitivity of the CN stretch enabled a comprehensive investigation of the relatively slow time scales and subnanometer distance dependences of the confined dynamics. Because MeIm does not readily donate hydrogen bonds, its interactions in the hydrophilic silanol pores differ more from the bulk than those of water confined in the same mesopores, resulting in greater structural order and more dramatic slowing of dynamics. The extent of surface effects was quantified by modified two-state models used to fit three spatially averaged exptl. observables: vibrational lifetime, orientational relaxation, and spectral diffusion. The length scales and the models (smoothed step, exponential decay, and simple step) describing the transitions between the distinctive shell behavior at the surface and the bulk-like behavior at the pore interior were compared to those of water. The highly nonuniform distributions of the SeCN- probe and antiparallel layering of MeIm revealed by the simulations guided the interpretation of the results and development of the anal. models. The results illustrate the importance of electrostatic effects and H-bonding interactions in the behavior of confined liquids In the experimental materials used by the author, we found 1-Methyl-1H-imidazole(cas: 616-47-7Computed Properties of C4H6N2)

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Computed Properties of C4H6N2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Gougoula, Eva’s team published research in Physical Chemistry Chemical Physics in 2022 | CAS: 616-47-7

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Safety of 1-Methyl-1H-imidazole

In 2022,Gougoula, Eva; Cummings, Charlotte N.; Medcraft, Chris; Heitkaemper, Juliane; Walker, Nicholas R. published an article in Physical Chemistry Chemical Physics. The title of the article was 《Microwave spectra, molecular geometries, and internal rotation of CH3 in N-methylimidazole···H2O and 2-methylimidazole···H2O complexes》.Safety of 1-Methyl-1H-imidazole The author mentioned the following in the article:

Broadband microwave spectra have been recorded between 7.0 and 18.5 GHz for N-methylimidazole···H2O and 2-methylimidazole···H2O complexes. Each complex was generated by co-expansion of low concentrations of methylimidazole and H2O in argon buffer gas. The rotational spectra of five isotopologues of each complex have been assigned and analyzed to determine rotational constants (A0, B0, C0), centrifugal distortion constants (DJ, DJK) and parameters that describe the internal rotation of the CH3 group. The results allow the determination of parameters in the (r0) mol. geometry of each complex. H2O is the hydrogen bond donor and the pyridinic nitrogen of imidazole is the hydrogen bond acceptor in each case. The ∠(O-Hb···N3) angles are 177(5)° and 166.3(28)° for N-methylimidazole···H2O and 2-methylimidazole···H2O resp. These results are consistent with the presence of a weak electrostatic interaction between the oxygen atom of H2O and the hydrogen atom (or CH3 group) attached to the C2 carbon atom of imidazole, and with the results of d. functional theory calculations The (V3) barrier to internal rotation of the CH3 group within N-methylimidazole···H2O is essentially unchanged from the value of this parameter for the N-methylimidazole monomer. The same parameter is significantly higher for the 2-methylimidazole···H2O complex than for the 2-methylimidazole monomer as a consequence of the weak electrostatic interaction between the O atom and the CH3 group of 2-methylimidazole. The experimental part of the paper was very detailed, including the reaction process of 1-Methyl-1H-imidazole(cas: 616-47-7Safety of 1-Methyl-1H-imidazole)

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Safety of 1-Methyl-1H-imidazole

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Anila, Sebastian’s team published research in Journal of Physical Chemistry A in 2022 | CAS: 7720-39-0

1H-Imidazol-2-amine(cas: 7720-39-0) belongs to anime. Reduction of nitro compounds, RNO2, by hydrogen or other reducing agents produces primary amines cleanly (i.e., without a mixture of products), but the method is mostly used for aromatic amines because of the limited availability of aliphatic nitro compounds. Reduction of nitriles and oximes (R2C=NOH) also yields primary amines.Reference of 1H-Imidazol-2-amine

In 2022,Anila, Sebastian; Suresh, Cherumuttathu H.; Schaefer, Henry F. III published an article in Journal of Physical Chemistry A. The title of the article was 《Demarcating Noncovalent and Covalent Bond Territories: Imine-CO2 Complexes and Cooperative CO2 Capture》.Reference of 1H-Imidazol-2-amine The author mentioned the following in the article:

Chem. bond territory is rich with covalently bonded mols. wherein a strong bond is formed by equal or unequal sharing of a quantum of electrons. The noncovalent version of the bonding scenarios expands the chem. bonding territory to a weak domain wherein the interplay of electrostatic and π-effects, dipole-dipole, dipole-induced dipole, and induced dipole-induced dipole interactions, and hydrophobic effects occur. Here we study both the covalent and noncovalent interactive behavior of cyclic and acyclic imine-based functional mols. (XN) with CO2. All parent XN systems preferred the formation of noncovalent (nc) complex XN···CO2, while more saturated such systems (XN′) produced both nc and covalent (c) complexes XN′+-(CO2)-. In all such cases, crossover from an nc to c complex is clearly demarcated with the identification of a transition state (ts). The complexes XN′···CO2 and XN′+-(CO2)- are bond stretch isomers, and they define the weak and strong bonding territories, resp., while the ts appears as the demarcation point of the two territories. Cluster formation of XN with CO2 reinforces the interaction between them, and all become covalent clusters of general formula (XN+-(CO2)-)n. The pos. cooperativity associated with the NH···OC hydrogen bond formation between any two XN′+-(CO2)- units strengthened the N-C coordinate covalent bond and led to massive stabilization of the cluster. For instance, the stabilizing interaction between the XN unit with CO2 is increased from 2-7 kcal/mol range in a monomer complex to 14-31 kcal/mol range for the octamer cluster (XN′+-(CO2)-)8. The cooperativity effect compensates for the large reduction in the entropy of cluster formation. Several imine systems showed the exergonic formation of the cluster and are predicted as potential candidates for CO2 capture and conversion. In the part of experimental materials, we found many familiar compounds, such as 1H-Imidazol-2-amine(cas: 7720-39-0Reference of 1H-Imidazol-2-amine)

1H-Imidazol-2-amine(cas: 7720-39-0) belongs to anime. Reduction of nitro compounds, RNO2, by hydrogen or other reducing agents produces primary amines cleanly (i.e., without a mixture of products), but the method is mostly used for aromatic amines because of the limited availability of aliphatic nitro compounds. Reduction of nitriles and oximes (R2C=NOH) also yields primary amines.Reference of 1H-Imidazol-2-amine

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Thomaz, Joseph E.’s team published research in Journal of Physical Chemistry B in 2020 | CAS: 616-47-7

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Related Products of 616-47-7

《Proton transfer dynamics in the aprotic proton accepting solvent 1-methylimidazole》 was written by Thomaz, Joseph E.; Walker, Alice R.; Van Wyck, Stephen J.; Meisner, Jan; Martinez, Todd J.; Fayer, Michael D.. Related Products of 616-47-7 And the article was included in Journal of Physical Chemistry B in 2020. The article conveys some information:

The dynamics of proton transfer to the aprotic solvent 1-methylimidazole (MeIm, proton acceptor) from the photoacid 8-hydroxypyrene-1,3,6-trisulfonic acid trisodium salt (HPTS) was investigated using fast fluorescence measurements. The closely related mol., 8-methoxypyrene-1,3,6-trisulfonic acid trisodium salt (MPTS), which is not a photoacid, was also studied for comparison. Following optical excitation, the wavelength-dependent population dynamics of HPTS in MeIm resulting from the deprotonation process were collected over the entire fluorescence emission window. Anal. of the time-dependent fluorescence spectra revealed four distinct fluorescence bands that appear and decay on different time scales. We label these four states as protonated (P), associated I (AI), associated II (AII), and deprotonated (D). We find that the simple kinetic scheme of P → AI → AII → D is not consistent with the data. Instead, the kinetic scheme that describes the data has P decaying into AI, which mainly goes on to deprotonation (D), but AI can also feed into AII. AII can return to AI or decay to the ground state, but does not deprotonate within exptl. error. Quantum chem. and excited state QM/MM Born-Oppenheimer mol. dynamics simulations indicate that AI and AII are two H-bonding conformations of MeIm to the HPTS hydroxyl, axial, and equatorial, resp. After reading the article, we found that the author used 1-Methyl-1H-imidazole(cas: 616-47-7Related Products of 616-47-7)

1-Methyl-1H-imidazole(cas: 616-47-7) is used as a precursor for the synthesis of pyrrole-imidazole polyamides, ionic liquids such as 1-butyl-3-methylimidazolium hexafluorophosphate.Related Products of 616-47-7

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem