The reaction of an aromatic heterocycle with a proton is called a protonation. One of articles about this theory is 《X-ray crystallographic and electron-interferometric determination of the molecular structure of the halides C(CH2X)4; (X = Cl, Br, I)》. Authors are Hassel, O.; Stromme, L. C..The article about the compound:Pentaerythrityltetrabromidecas:3229-00-3,SMILESS:BrCC(CBr)(CBr)CBr).SDS of cas: 3229-00-3. Through the article, more information about this compound (cas:3229-00-3) is conveyed.
The conclusions of Wagner and Dengel (cf. C. A. 26, 3418) on the structure of these compounds are erroneous because the elementary cell found by them is too small. The electron-diffraction experiments of de Laszlo (cf. C. A. 28, 5671.4) are not in agreement with the results of H. and S. The structure of the compounds appears to be very complicated.
From this literature《X-ray crystallographic and electron-interferometric determination of the molecular structure of the halides C(CH2X)4; (X = Cl, Br, I)》,we know some information about this compound(3229-00-3)SDS of cas: 3229-00-3, but this is not all information, there are many literatures related to this compound(3229-00-3).
Reference:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem