Syntheses, structures, and magnetic properties of heterobimetallic Fe2M (M = Cu, Mn) chains based on tetracyanometallic building block |
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| Authors: | He-Rui Wen Cai-Feng Wang Yi-Zhi Li Xiao-Zeng You |
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| Affiliation: | a School of Chemistry and Life Science, Gannan Normal University, Jiangxi Ganzhou 341000, China
b Coordination Chemistry Institute and the State Key Laboratory of Coordination Chemistry, Han Kou Road, Nanjing University, Nanjing 210093, China |
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| Abstract: | Using the tetracyanometalate precursor [Fe(4,4′-dmbipy)(CN)4]- (4,4′-dmbipy = 4,4′-dimethyl-2,2′-bipyridine) as the building block, two new cyano-bridged one-dimensional heterobimetallic coordination polymers, [M(CH3OH)2Fe2(4,4′-dmbipy)2(CN)8]n (M = Cu, 1; Mn, 2), have been synthesized and structurally characterized. X-ray crystallography reveals that complexes 1 and 2 consist of heterobimetallic chains of squares, and the central MII ion is six-coordinated as an elongated distorted octahedral geometry. Magnetic studies show ferromagnetic coupling between FeIII and CuII ions in complex 1. Complex 2 exhibits ferrimagnetic behavior caused by the noncompensation of the local interacting spins (SMn = 5/2 and SFe = 1/2), which interact antiferromagnetically through bridging cyanide groups. magpack program has been employed to investigate the magnetic nature of squares chain structure. |
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| Keywords: | Tetracyanometalate Cyano-bridged complexes Crystal structures Heterobimetallic chains Magnetic properties |
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