Crystal structure of {(R)-N2-[(benzo[h]quinolin-2-yl)methyl]-N2′-[(benzo[h]quinolin-2-yl)methylidene]-1,1′-binaphthyl-2,2′-diamine-κ4N,N′,N′′,N′′′}(trifluoromethanesulfonato-κO)zinc(II)} trifluoromethanesulfonate dichloromethane 1.5-solvate

Acta Crystallographica Section E: Crystallographic Communications

Shayna R. Skokan¹  Kayode D. Oshin¹  Monica M. Reeson¹  John A. Desper²  Christopher J. Levy²  Anastasiya I. Vinokur³ 

[1] Department of Chemistry, Creighton University, Omaha, NE 68102, USA;Department of Chemistry, Kansas State University, Manhattan, KS 66506, USA;Department of Chemistry, University of Wisconsin, Madison, WI 53558, USA;

关键词: crystal structure;    five-coordinate zinc(II) complex;    chiral ligand;    asymmetric catalysis;    monohelical structure;   

DOI  :  10.1107/S2056989017008027

来源: DOAJ

【 摘 要 】

The zinc(II) atom in the title compound, [Zn(C48H31N4)(CF3SO3)](CF3SO3)·1.5CH2Cl2, adopts a distorted five-coordinate square-pyramidal geometry. It is coordinated by one trifluoromethanesulfonate ligand and four N atoms of the N2-[(benzo[h]quinolin-2-yl)methyl]-N2′-[(benzo[h]quinolin-2-yl)methylidene]-1,1′-binaphthyl-2,2′-diamine ligand. The complex is present as a single-stranded P-helimer monohelical structure incorporating π–π and/or σ–π interactions. One of the imine bonds present in the original ligand framework is reduced, leading to variations in bond lengths and torsion angles for each side of the ligand motif. The imine-bond reduction also affects the bond lengths involving the metal atom with the N-donor atoms located on the imine bond. There are two molecules of the complex in the asymmetric unit. One of the molecules exhibits positional disorder within the coordinating trifluoromethanesulfonate ion making the molecules symmetrically non-equivalent.

【 授权许可】

Unknown