Syntheses,crystal structures and magnetic properties of three new binuclear Ni(II) complexes derived from tripodal tetradentate (N4) ligands |
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| Authors: | Sadegh Salehzadeh Reza Golbedaghi Ian S Tidmarsh Lorenzo Sorace Harry Adams Michael D Ward |
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| Institution: | 1. Faculty of Chemistry, Bu-Ali Sina University, Hamedan, Iran;2. Department of Chemistry, University of Sheffield, Sheffield, S3 7HF, UK;3. Dipartimento di Chimica, UniVersita‘ di Firenze, and UdR INSTM, Sesto Fiorentino, Italy |
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| Abstract: | Three new binuclear Ni(II) complexes {Ni(L22py)Cl}2](ClO4)2 (1), {Ni(L23py)Cl}2](ClO4)2 (2), and {Ni(L33py)Cl}2](ClO4)2 (3), {L22py = N-(2-pyridylmethyl)-N-(2-aminoethyl)-1,2-diaminoethane, L23py = N-(2-pyridylmethyl)-N-(2-aminoethyl)-1,3-diaminopropane, L33py = N-(2-pyridylmethyl)-N-(3-aminopropyl)-1,3-diaminopropane} have been synthesized. Single crystal X-ray structure analysis showed that in each complex two distorted octahedral Ni(II) ions are bridged asymmetrically by a pair of chloride anions. Variable temperature magnetic susceptibility measurements of 1 and 3 revealed dominant ferromagnetic exchange interactions. |
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| Keywords: | Crystal structure Magnetic properties Ferromagnetic Binuclear nickel complexes Bridging |
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