Intramolecular Hydrogen Bonding of a Chloride Acceptor Supported by a Dinuclear Nickel(II) Complex withN-Salicylidene Hydrazide Ligand: Crystal Structure and Magnetic Properties
作者： Anja Burkhardt , Axel Buchholz , Helmar Görls , Winfried Plass
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摘要: The dinuclear phenoxido-bridged nickel(II) complex [{Ni(Hsalhyph)Cl(H2O)}2] with the hydrazone ligand H2salhyph, derived from salicylaldehyde and benzoic acid hydrazide, has been synthesized structurally characterized. Ni2O2 core unit of facilitates formation intramolecular O–H···Cl hydrogen bonds. chlorido is involved in additional N–H···Cl bonding leading to an aggregation complexes forming one-dimensional staged chains. Within chains supramolecular structure governed by π–π-stacking interactions. In crystal two DMF molecules crystallization are present per complex. located between O–H···O=C aqua ligands dinickel core. Magnetic susceptibility measurements show presence antiferromagnetic exchange interactions (H = –JS1S2) J –14.8 cm–1 ions indicate a zero-field-splitting D 12.6 cm–1.
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