Anellated N-heterocyclic carbenes: 1,3-Dineopentyl-benzimidazol-2-ylidene, structural aspects of C-protonated precursor salts and an AgCl complex

Autor:	Peter G. Jones, Shanmuganathan Saravanakumar, Olaf Kühl, Joachim Heinicke, Markus K. Kindermann, Martin Köckerling, Farman Ullah
Rok vydání:	2008
Předmět:	Chemistry Stereochemistry Protonation Crystal structure Ring (chemistry) Medicinal chemistry Chloride Inorganic Chemistry Bond length Deprotonation Materials Chemistry medicine Physical and Theoretical Chemistry medicine.drug
Zdroj:	Polyhedron. 27:2825-2832
ISSN:	0277-5387
DOI:	10.1016/j.poly.2008.06.006
Popis:	Access to 1,3-dineopentyl-benzimidazol-2-ylidene (1) by deprotonation of various benzimidazolium salts was studied. [Ag(1)Cl] was prepared from the corresponding benzimidazolium chloride. X-ray crystal structure analyses of benzo-, naphtho- and quinoxalino-anellated imidazolium salts displayed neither significant changes nor systematic trends of bond lengths and angles within the five-membered ring. Consistently downfield shifts of the 13C1H(2) nuclei reflect the influence of electron-withdrawing anellation.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::20386381cdbfe3488369dde1fe698933 https://doi.org/10.1016/j.poly.2008.06.006 Zobrazit plný text záznamu Full Text from ScienceDirect