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Chlorido[3,3'-dibutyl-5,5'-(pyridine-2,6-di-yl)dipyrazol-1-ido]gold(III).

ABSTRACT: The Au atom in the C2-symmetric pincer-type title complex, [AuCl(C(19)H(23)N(5))], is in the +3 oxidation state. The ligand is composed of one pyridine unit and two n-butyl-substituted pyrazoles (pyrz). Both pyrazoles are deprotonated, thus forming a neutral compound. To the best of our knowledge, this is the first Au(III)-bis-pyrazolate complex. According to the special geometry in the N,N',N''-tridentate ligand, containing two five-membered heterocycles, the complex deviates from an ideal square-planar coordination geometry; the N(pyrz)-Au-N(pyrz) angle is 160.8?(3)°, indicating a distortion of nearly 20°.

SUBMITTER: Hashmi AS

PROVIDER: S-EPMC2980159 | biostudies-literature | 2009 Dec

REPOSITORIES: biostudies-literature

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Chlorido[3,3'-dibutyl-5,5'-(pyridine-2,6-di-yl)dipyrazol-1-ido]gold(III).

Hashmi A Stephen K AS Lothschütz Christian C Rominger Frank F

Acta crystallographica. Section E, Structure reports online 20091216 Pt 1

The Au atom in the C2-symmetric pincer-type title complex, [AuCl(C(19)H(23)N(5))], is in the +3 oxidation state. The ligand is composed of one pyridine unit and two n-butyl-substituted pyrazoles (pyrz). Both pyrazoles are deprotonated, thus forming a neutral compound. To the best of our knowledge, this is the first Au(III)-bis-pyrazolate complex. According to the special geometry in the N,N',N''-tridentate ligand, containing two five-membered heterocycles, the complex deviates from an ideal squa ...[more]

PMID: 21579959

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