Photochemical disproportionation of an Au(II) pincer complex: Synthesis and structure of an Au(I)4Au(III)4 macrocycle

Dragos-Adrian Rosca; Manfred Bochmann

doi:10.1021/acs.organomet.5b00846

Photochemical disproportionation of an Au(II) pincer complex: Synthesis and structure of an Au(I)4Au(III)4 macrocycle

Dragos-Adrian Rosca, Manfred Bochmann

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Abstract

The Au(II) C^N^C pincer complex [(C^N^C)Au]2 is stable under thermal conditions but disproportionates on irradiation in solution to give an Au(I)4Au(III)4 mixed-valence aggregate with a 20-membered macrocyclic structure, consisting of four linear Au(I) C-Au-N building blocks, each of which is decorated with a square planar (C^N^C)Au(III) substituent. In the crystal, the rings are stacked to form solvent-filled channels with an internal diameter of 8.3 Å and a cross-channel AuIAuI distance of 7.7 Å.

Original language	English
Pages (from-to)	27-31
Number of pages	5
Journal	Organometallics
Volume	35
Issue number	1
Early online date	17 Dec 2015
DOIs	https://doi.org/10.1021/acs.organomet.5b00846
Publication status	Published - 11 Jan 2016

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10.1021/acs.organomet.5b00846

ms-accepted_versionAccepted author manuscript, 633 KB

Gold(III) Chemistry: Structures, Bonding, Reactivity and Catalysis
Bochmann, M.
CEC (Framework 7)
1/02/14 → 31/01/19
Project: Research

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abstract = "The Au(II) C^N^C pincer complex [(C^N^C)Au]2 is stable under thermal conditions but disproportionates on irradiation in solution to give an Au(I)4Au(III)4 mixed-valence aggregate with a 20-membered macrocyclic structure, consisting of four linear Au(I) C-Au-N building blocks, each of which is decorated with a square planar (C^N^C)Au(III) substituent. In the crystal, the rings are stacked to form solvent-filled channels with an internal diameter of 8.3 {\AA} and a cross-channel AuIAuI distance of 7.7 {\AA}. ",

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AB - The Au(II) C^N^C pincer complex [(C^N^C)Au]2 is stable under thermal conditions but disproportionates on irradiation in solution to give an Au(I)4Au(III)4 mixed-valence aggregate with a 20-membered macrocyclic structure, consisting of four linear Au(I) C-Au-N building blocks, each of which is decorated with a square planar (C^N^C)Au(III) substituent. In the crystal, the rings are stacked to form solvent-filled channels with an internal diameter of 8.3 Å and a cross-channel AuIAuI distance of 7.7 Å.

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Photochemical disproportionation of an Au(II) pincer complex: Synthesis and structure of an Au(I)4Au(III)4 macrocycle

Abstract

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Gold(III) Chemistry: Structures, Bonding, Reactivity and Catalysis

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