Synthesis,crystal and molecular structure and magnetic properties of an extended two-dimensional fumarato-bridged polymeric cobalt(II) complex [Co(μ-fumarato)(γ-methylpyridine)<Subscript>2</Subscript>(H<Subscript>2</Subscript>O)<Subscript>2</Subscript>]<Subscript>∞</Subscript>期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Synthesis,crystal and molecular structure and magnetic properties of an extended two-dimensional fumarato-bridged polymeric cobalt(II) complex [Co(μ-fumarato)(γ-methylpyridine)2(H2O)2]∞

Authors:	Kou-Lin Zhang Yan Xu Xiao-Zeng You

Affiliation:	(1) Chemistry and Chemical Engineering College, Yangzhou University, 225002 Yangzhou, PR China;(2) Coordination Chemistry Institute, State Key Laboratory of Coordination Chemistry, Nanjing University, 210093 Nanjing, PR China

Abstract:	An extended hydrogen-bonded two-dimensional fumarato-bridged complex [Co(μ-fumarato)(γ-methylpyridine)₂(H₂O)₂]_∞ has been synthesized and its crystal structure determined by single crystal X-ray analysis. The X-ray analysis reveals that the cobalt atom is positioned in distorted octahedral surroundings. An extended twodimensional structure was formed through interchain hydrogen bonding. Magnetic measurements showed the presence of weak antiferromagnetic exchange interactions between the cobalt(II) ions within the chain, based on thespin Hamilitonian H = −2J ∑ S_i S_{i+ 1} (J = − 0.22 cm⁻¹).

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