Crystal structure and magnetic behavior of a three-dimensional cyano-bridged assembly [CuL1]2[Cr(CN)6]ClO4·0.5H2O (L1 = 3,10-dipropyl-1,3,5,8,10,12- hexaazacyclotetradecane),10.1039/B401557F

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Crystal structure and magnetic behavior of a three-dimensional cyano-bridged assembly [CuL1]2[Cr(CN)6]ClO4·0.5H2O (L1 = 3,10-dipropyl-1,3,5,8,10,12- hexaazacyclotetradecane)

Song Gao,Gui Yin,Kai-Bei Yu,Zheng Xu

New Journal of Chemistry Pub Date : 07/09/2004 00:00:00 , DOI:10.1039/B401557F

Abstract

Reaction of K₃[Cr(CN)₆] with [CuL¹](ClO₄)₂ (L¹ = 3,10-dipropyl-1,3,5,8,10,12-hexaazacyclotetradecane) leads to a novel three-dimensional (3-D) cyano-bridged bimetallic assembly [CuL¹]₂[Cr(CN)₆]ClO₄·0.5H₂O (1), in which each hexacyanochromate(III) ion connects four copper(II) ions using four co-planar CN⁻ groups, which coordinate axially to the copper ion in a trans fashion forming trans-CuL¹(N [triple bond, length as m-dash] C)₂ moieties. Magnetic studies reveal that the complex displays a ferromagnetic interaction between the Cu(II) (S = 1/2) and Cr(III) (S = 3/2) ions through cyano bridges.