Synthesis and X-ray crystal structures of two transition metal complexes based on functionalised 1,5-anhydro-2-deoxy-D-galactitol and methyl 2-deoxy-α-D-galactopyranoside

被引：5

作者：

Cisnetti, Federico ^{[1
,2
]}

Guillot, Regis ^{[2
]}

Ibrahim, Nada ^{[1
,2
]}

Lambert, Francois ^{[1
,2
]}

Therisod, Michel ^{[1
,2
]}

Policar, Clotilde ^{[1
,2
]}

机构：

[1] Univ Paris 11, CNRS, UMR 8182, ICMMO,Euipe Chim Bioorgan & Bioinorgan, F-91405 Orsay, France

[2] CNRS, UMR 8182, F-91405 Orsay, France

来源：

CARBOHYDRATE RESEARCH | 2008年 / 343卷 / 03期

关键词：

sugar-derived ligands; sugar-metal complexes; crystal structure; pyranose-ring conformations; COORDINATION; GLYCOLIGANDS; LIGANDS; SUGARS; IONS;

D O I：

10.1016/j.carres.2007.11.031

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

Two new ligands of transition metal cations based on galactose-derived scaffolds were synthesised: 1,5-anhydro-2-deoxy-3,4,6-tri-O-(2-picolyl)-D-galactitol and methyl 2-deoxy-3,4,6-tri-O-(2-picolyl)-alpha-D-galactopyranoside. These ligands permitted the isolation as single crystals of a Co(II) and a Ni(II) complex, respectively. The structures of both complexes were determined by X-ray crystallography showing a coordination sphere including sugar-bound oxygen atoms. The sugar-derived ligands were found to be in both cases in high energy conformations in the crystal structures of the complexes. These conformations contain an arrangement of sugar-bound oxygen atoms similar to those observed in polyol-metal and carbohydrate-metal complexes. (c) 2007 Elsevier Ltd. All rights reserved.

引用

页码：530 / 535

页数：6

共 34 条

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