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Crystal structures of three mercury(II) complexes [HgCl2 L] where L is a bidentate chiral imine ligand.

ABSTRACT: The crystal structures of three complexes [HgCl2 L] were determined, namely, (S)-(+)-di-chlorido-[1-phenyl-N-(pyridin-2-yl-methyl-idene)ethyl-amine-?(2) N,N']mercury(II), [HgCl2(C14H14N2)], (S)-(+)-di-chlorido-[1-(4-methyl-phen-yl)-N-(pyridin-2-yl-methyl-idene)ethyl-amine-?(2) N,N']mercury(II), [HgCl2(C15H16N2)], and (1S,2S,3S,5R)-(+)-di-chlorido-[N-(pyridin-2-yl-methyl-idene)isopino-camph-eyl-amine-?(2) N,N']mercury(II), [HgCl2(C16H22N2)]. The complexes consist of a bidentate chiral imine ligand coordinating to HgCl2 and crystallize with four independent mol-ecules in the first complex and two independent mol-ecules in the other two. The coordination geometry of mercury is tetra-hedral, with strong distortion towards a disphenoidal geometry, as a consequence of the imine bite angle being close to 70°. The Cl-Hg-Cl angles span a large range, 116.0?(2)-138.3?(3)°, which is related to the aggregation state in the crystals. For small Cl-Hg-Cl angles, complexes have a tendency to form dimers, via inter-molecular Hg?Cl contacts. These contacts become less significant in the third complex, which features the largest intra-molecular Cl-Hg-Cl angles.

SUBMITTER: Hernandez G

PROVIDER: S-EPMC4719814 | biostudies-other | 2015 Dec

REPOSITORIES: biostudies-other

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Crystal structures of three mercury(II) complexes [HgCl2 L] where L is a bidentate chiral imine ligand.

Hernández Guadalupe G Bernès Sylvain S Portillo Oscar O Ruíz Alejandro A Moreno Gloria E GE Gutiérrez René R

Acta crystallographica. Section E, Crystallographic communications 20151107 Pt 12

The crystal structures of three complexes [HgCl2 L] were determined, namely, (S)-(+)-di-chlorido-[1-phenyl-N-(pyridin-2-yl-methyl-idene)ethyl-amine-κ(2) N,N']mercury(II), [HgCl2(C14H14N2)], (S)-(+)-di-chlorido-[1-(4-methyl-phen-yl)-N-(pyridin-2-yl-methyl-idene)ethyl-amine-κ(2) N,N']mercury(II), [HgCl2(C15H16N2)], and (1S,2S,3S,5R)-(+)-di-chlorido-[N-(pyridin-2-yl-methyl-idene)isopino-camph-eyl-amine-κ(2) N,N']mercury(II), [HgCl2(C16H22N2)]. The complexes consist of a bidentate chiral imine ligan ...[more]

PMID: 26870405

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Dataset Information

Crystal structures of three mercury(II) complexes [HgCl2 L] where L is a bidentate chiral imine ligand.

Publications

Crystal structures of three mercury(II) complexes [HgCl2 L] where L is a bidentate chiral imine ligand.

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