Copper(II) and zinc(II) complexes with 2-benzoylpyridine-methyl hydrazone

Autor:	Eduardo E. Castellano, Ana Cerúlia M. do Carmo, Heloisa Beraldo, Jeferson G. Da Silva, Angel A. Recio Despaigne, Oscar E. Piro
Rok vydání:	2009
Předmět:	chemistry.chemical_classification Coordination sphere ESPECTROSCOPIA (ESTUDO) Stereochemistry Ligand Organic Chemistry Hydrazone chemistry.chemical_element Zinc Crystal structure Copper Analytical Chemistry Inorganic Chemistry Deprotonation chemistry Polymer chemistry Chelation Spectroscopy
Zdroj:	Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual) Universidade de São Paulo (USP) instacron:USP
ISSN:	0022-2860
DOI:	10.1016/j.molstruc.2008.10.025
Popis:	2-Benzoylpyridine-methyl hydrazone (HBzMe) has been obtained as well as its copper(II) [Cu(HBzMe)Cl2] (1) and zinc(II) [Zn(HBzMe)Cl2] (2) complexes. Upon re-crystallization in 1 – 9 DMSO:acetone conversion of 1 into dimeric [Cu(BzMe)Cl]2 (1a) occurred. The crystal structures of HBzMe, 1, 1a, and 2 were determined. HBzMe adopts the ZE conformation in the solid. In all complexes the hydrazone adopts the E configuration to attach to the metal through the Npy N2 O chelating system. In 1 and 2 a neutral hydrazone coordinates to the metal center while in 1a deprotonation occurs with coordination of an anionic ligand. 1a presents a dimeric structure, having two copper(II) ions per asymmetric unit. Two chlorides are also present in the copper coordination sphere, which act as bridging ligands and connect the copper centers to each other.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7ca374d8548725aec3a82b1e4c433a0a https://doi.org/10.1016/j.molstruc.2008.10.025 Zobrazit plný text záznamu Full Text from ScienceDirect