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Incomplete coordination to rhenium(V) by a facultative quinquedentate ligand. The x-ray crystal structure of [ReO(OMe){2′-(NC4H3-2-CHN(CH2)3NMe(Ch2)3CHN)C4H3NH}]PF6

Authors
Journal
Polyhedron
0277-5387
Publisher
Elsevier
Publication Date
Volume
9
Issue
4
Identifiers
DOI: 10.1016/s0277-5387(00)86242-7

Abstract

Abstract The reaction between Bu 4N[ReOCl 4(H 2O)] and the Schiff base ligand {HNC 4H 3- 2-CHN(CH 2) 3} 2NMe in methanol affords the cationic complex [ReO(OMe){2′-(NC 4H 3- 2-CHN(CH 2) 3NMe(CH 2) 3CHN)C 4H 3NH}]PF 6. An X-ray diffraction study of this complex reveals a six coordinate, nearly octahedral rhenium(V) centre coordinated to only four nitrogen donor atoms from the quinquedentate ligand. One terminal pyrrolyl group remains protonated and uncoordinated. The remaining two coordination sites are occupied by the mutually trans oxo and methoxide ligands.

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