Ligand steric effect on the coordination mode of nitrite ion: Syntheses and X-ray single crystal structures of trans-[NiL2(ONO)2] and cis-[NiL′2(O2N)](NO2)·H2O [L=2-(aminomethyl)pyridine and L′=(2-aminoethyl)pyridine]

Autor:	Arpita Banerjee, Debasis Das, Nirmalya Podder, Munirathinam Nethaji, Manami Ghosh, Tanmay Chattopadhyay, Kazi Sabnam Banu, Eringathodi Suresh
Rok vydání:	2007
Předmět:	Steric effects Nitrite ion Ligand Stereochemistry Organic Chemistry X-ray 2-(aminomethyl)pyridine Medicinal chemistry Analytical Chemistry Inorganic Chemistry Solvent chemistry.chemical_compound chemistry Pyridine Single crystal Spectroscopy
Zdroj:	Journal of Molecular Structure. 839:69-75
ISSN:	0022-2860
DOI:	10.1016/j.molstruc.2006.11.013
Popis:	The steric effects of the co-ligands originated from the pi-cloud of the pyridine moiety and from increased aliphatic chain length have been utilized to synthesize two different binding modes of nitrite ion. A red-violet nitrito isomer trans -[NiL 2 (ONO) 2 ] ( 1 ) and a blue-violet nitrito (O,O) isomer cis -[NiL′ 2 (O 2 N)](NO 2 )·H 2 O ( 2 ) are obtained by adding L and L′ to the methanolic suspension of K 4 [Ni(NO 2 ) 6 ]·H 2 O [L = 2-(aminomethyl)pyridine and L′ = 2-(aminoethyl)pyridine]. No other isomer of complex 1 or 2 is yielded in solution irrespective of the nature of the solvent used or in the solid state. They have been characterized by routine physicochemical studies as well as by X-ray single crystal structure analysis.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9a5701058671b783b847d1ec964a2f1e https://doi.org/10.1016/j.molstruc.2006.11.013 Zobrazit plný text záznamu Full Text from ScienceDirect