Chang-You Ji

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The asymmetric unit of title complex, [Ni(C(20)H(13)BrN(2)O(2))(C(5)H(5)N)], contains two independent mol-ecules. In each mol-ecule, the central Ni(II) atom has a square-planar environment, formed by the tridentate hydrazone and the monodentate pyridine ligands, with the N atoms in a trans arrangement about the Ni(II) atom.
The asymmetric unit of title complex, [Cu(C(20)H(13)BrN(2)O(2))(C(5)H(5)N)], contains two independent mol-ecules. In each mol-ecule, the central Cu(II) atom has a square-planar environment formed by the tridentate hydrazone and the monodentate pyridine ligands, with the N atoms in a trans arrangement about the Cu(II) atom.
In the title compound, [Ni(C(16)H(32)N(4))](C(14)H(14)O(2)PS(2))(2) or [Ni(trans[14]dien)][S(2)P(OC(6)H(4)Me-4)(2)](2), where trans[14]dien is meso-5,7,7,12,14,14-hexa-methyl-1,4,8,11-tetra-azacyclo-tetra-deca-4,11-diene, the Ni(II) ion lies across a centre of inversion and is four-coordinated in a relatively undistorted square-planar arrangement by the(More)
The asymmetric unit of title complex, [Ni(C(20)H(12)BrClN(2)O(2))(C(5)H(5)N)], contains one complex with the central Ni atom in a slightly distorted square-planar environment, formed by the tridentate hydrazone and the monodentate pyridine ligands, with N atoms in a trans arrangement about the Ni atom.
The title complex, [Ni(C(15)H(10)BrClN(2)O(2))(C(5)H(5)N)], displays a square-planar coordination geometry around the Ni(II) ion, formed by the tridentate hydrazone and monodentate pyridine ligands, with the N atoms in a trans arrangement about the Ni center.
The Schiff base, C(20)H(14)BrClN(2)O(2), displays a trans conformation with respect to the C=N double bond. The aromatic rings at either end of the -C(=O)-NH-N=C- fragment are nearly parallel [dihedral angle = 3.4 (5)°]. The hydr-oxy group forms an intra-molecular hydrogen bond to the imino N atom.
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