6149-36-6Relevant academic research and scientific papers
In situ Observation of Molecular Swapping in a Crystal by X-ray Analysis
Kawano, Masaki,Sano, Tomokatsu,Abe, Jiro,Ohashi, Yuji
, p. 1372 - 1373 (2007/10/03)
X-ray diffraction analysis elucidated that a pair of hexaarylbiimidazoles was transformed to a complex composed of two lophyl radicals and a piezodimer on irradiation at low temperatures. The piezodimer, the existence of which has been assumed spectroscopically as an unstable isomer, was produced via molecular swapping of two photo-induced lophyl radicals with drastic conformational change. The black crystal reverted to the original structure on warming to 25 deg C.
Structures and Chromotropic Properties of Imidazole Derivatives Produced from 3,6-Bis(4,5-diphenyl-2H-imidazol-2-ylidene)cyclohexa-1,4-diene
Sakaino, Yoshiko
, p. 1063 - 1066 (2007/10/02)
Addition of acetic acid to 3,6-bis(4,5-diphenyl-2H-imidazol-2-ylidene)cyclohexa-1,4-diene (1) afforded 2--4,5-diphenyl-1H-imidazole (2).Lead dioxide oxidation of (2) in acetic acid yielded 1,4-bis(4-aceto
