Syntheses, Crystal Structure, and Magnetic Properties of a Self-assembling Dicopper(II) Helicate with Novel Bipyridine Ligand

Autor:	Yi-Chun Wang, Hsien-Chang Kao, Wen-Jwu Wang
Rok vydání:	2012
Předmět:	Denticity Ligand Stereochemistry Supramolecular chemistry chemistry.chemical_element General Chemistry Crystal structure Copper Perchlorate chemistry.chemical_compound Crystallography Bipyridine chemistry Octahedron
Zdroj:	Journal of the Chinese Chemical Society. 59:934-939
ISSN:	0009-4536
DOI:	10.1002/jccs.201200015
Popis:	A novel double helical dicopper(II) complex was synthesized by reaction of a polydentate ligand L = 2,2′-bipyridyl-6,6′-bis(2-acetylpyrazinohydrazone) with copper(II) perchlorate in CH3CN. The self-assembling process was studied by UV-Vis spectrometric titration experiments which revealed the formation of dinuclear complexes [Cu2L2](ClO4)4. The structure of dicopper double-helicate was confirmed by X-ray diffractometry. Each copper(II) center occupies a distorted octahedral environment. Variable-temperature magnetic measurements reveal weak antiferromagnetic interactions between Cu(II) ion centers with J = −0.63 cm−1.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::a4f507c780c52c6ff3ef51e1f8955bcd https://doi.org/10.1002/jccs.201200015 Zobrazit plný text záznamu Plný text ve formátu PDF