Synthesis and crystallographic characterization of a chiral complex of (R)-2-(pyridin-2-ylmethylene)amino-2’-hydroxy-1,1’-binaphthyl(L) with hydrated nickel(II) acetate by Baoming Ji and Xiangming Han

Crystal Research and Technology

Cryst. Res. Technol. 42, 926 (2007) - Abstract -

Synthesis and crystallographic characterization of a chiral complex of (R)-2-(pyridin-2-ylmethylene)amino-2’-hydroxy-1,1’-binaphthyl(L) with hydrated nickel(II) acetate

Baoming Ji and Xiangming Han*

College of Chemistry and Engineering, Luoyang Normal University, Luoyang 471022, P. R. China
*Chemistry and Evironmental Engineering College, Pingyuan University, Xinxiang 453003, P. R. China

Keywords	chiral nickel complex, intermolecular hydrogen bond, crystal structure
PACS	61.66.Hq
DOI	10.1002/crat.200710934

A chiral complex of (R)-2-((pyridin-2-ylmethylene)amino)-2’-hydroxy-1,1’-binaphthyl (L) with hydrated nickel (II) acetate has been synthesized and spectroscopically characterized. has been determined by single-crystal X-ray diffraction. The complex crystallizes in the orthorhombic space group P2(1) 2(1) 2(1) with cell constants a = 15.1035 (19), b = 17.836 (2), c = 18.730 (2)Å, α = β = γ = 90.00°, Z = 4. The structure was solved by direct methods and refined to R = 0.0346 (wR2 = 0.0863). The analytical result of the crystal structure indicates that a pair of L ligands chelate to a Ni (II) atom in an asymmetric fashion with one Ni-N bond being longer than the other, the Ni (II) atom is further coordinated by one methanol molecule and one acetate anion to form a distorted octahedral geometry. In the crystal of the complex, the coordination cation, the uncoordinated methanol molecule and uncoordinated acetate anion are further assembled into one-dimensional chain structure via intermolecular hydrogen bonds along the a-axis.

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