Abstract

A new three-dimensional diamagnetic metal nitronyl nitroxide radical coordination polymer with an aqua cadmium cyanide framework Cd(NIT4py)(H 2O)Cd(CN) 4·H 2O 1, was synthesized. X-ray crystallography reveals that the structure consists of 3D aqua cadmium cyanide built up by octahedral Cd II coordinating to NIT4py and tetrahedral Cd II (CN) 4 units. Magnetic measurements show that the χ m T values are nearly constant at higher temperature. The lower χ m T values at lower temperature are related to intermolecular antiferromagnetic interactions of the radicals, which arise due to the hydrogen bonded network ( T N = 21 K).

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