1040374-26-2Relevant academic research and scientific papers
Synthesis and NMR structural analysis of several orthopalladated complexes of substituted benzo-imidazole, -oxazole and -thiazole and study of two polymorphic crystals
Navarro-Ranninger, Carmen,Zamora, Felix,Martinez-Cruz, L. Alfonso,Isea, Raul,Masaguer, Jose R.
, p. 29 - 36 (1996)
The full assignation of 1H and 13C NMR parameters using both homo- and hetero-nuclear two dimensional spectroscopy techniques (COSY, HMQC and HMBC) allows the determination of electronic properties in cyclopalladated complexes obtained by reaction of N-methyl-2-phenylbenzimidazole (a), 2-phenylbenzothiazole (b) and 2-phenylbenzoxazole (c) with palladium salts. The attempts to separate the anti and syn isomers (detected by NMR) led to the formation of two different kinds of crystal for the 2-phenylbenzoxazole palladium complex, 1c (yellow and orange). The X-ray diffraction study of these crystals indicates the formation of two polymorphic phases both in anti disposition.
