Expect the unexpected. Isolation and characterisation of some unusual organometallic gold(I) complexes

S. K. Bhargava; F. Mohr; A. C. Willis

doi:10.1016/S0020-1693(03)00128-2

Expect the unexpected. Isolation and characterisation of some unusual organometallic gold(I) complexes

S. K. Bhargava^*, F. Mohr, A. C. Willis

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

The reaction of equimolar amounts of 2-Li-3-MeC₆H₃PPh₂ and [AuBr(AsPh₃)] gives a mixture of the cyclometallated digold(I) complex [Au₂(μ-6-MeC₆H₃-2-PPh₂) ₂] and the 'half-cyclometallated' complex [(Ph₃As)Au(μ-6-MeC₆H₃-2-PPh ₂)AuBr] (1). This complex represents the first example of an intermediate of a cycloauration reaction that has been structurally characterised by X-ray diffraction. The reaction of [Au₂(μ-6-MeC₆H₃-2-PPh₂) ₂] with mercuric chloride gives the unusual heteronuclear Hg(II)/Au(I) complex [ClHg(μ-6-MeC₆H₃-2-PPh₂)AuCl] (2), arising from electrophilic cleavage of a gold-carbon σ-bond, and not the oxidative addition product.

Original language	English
Pages (from-to)	19-23
Number of pages	5
Journal	Inorganica Chimica Acta
Volume	352
DOIs	https://doi.org/10.1016/S0020-1693(03)00128-2
Publication status	Published - 6 Aug 2003

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10.1016/S0020-1693(03)00128-2

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@article{8b3fc36bc03c466d82874dfb381ec5a9,

title = "Expect the unexpected. Isolation and characterisation of some unusual organometallic gold(I) complexes",

abstract = "The reaction of equimolar amounts of 2-Li-3-MeC6H3PPh2 and [AuBr(AsPh3)] gives a mixture of the cyclometallated digold(I) complex [Au2(μ-6-MeC6H3-2-PPh2) 2] and the 'half-cyclometallated' complex [(Ph3As)Au(μ-6-MeC6H3-2-PPh 2)AuBr] (1). This complex represents the first example of an intermediate of a cycloauration reaction that has been structurally characterised by X-ray diffraction. The reaction of [Au2(μ-6-MeC6H3-2-PPh2) 2] with mercuric chloride gives the unusual heteronuclear Hg(II)/Au(I) complex [ClHg(μ-6-MeC6H3-2-PPh2)AuCl] (2), arising from electrophilic cleavage of a gold-carbon σ-bond, and not the oxidative addition product.",

keywords = "Binuclear, Cyclometallated, Gold, Heteronuclear",

author = "Bhargava, \{S. K.\} and F. Mohr and Willis, \{A. C.\}",

year = "2003",

month = aug,

day = "6",

doi = "10.1016/S0020-1693(03)00128-2",

language = "English",

volume = "352",

pages = "19--23",

journal = "Inorganica Chimica Acta",

issn = "0020-1693",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Expect the unexpected. Isolation and characterisation of some unusual organometallic gold(I) complexes

AU - Bhargava, S. K.

AU - Mohr, F.

AU - Willis, A. C.

PY - 2003/8/6

Y1 - 2003/8/6

N2 - The reaction of equimolar amounts of 2-Li-3-MeC6H3PPh2 and [AuBr(AsPh3)] gives a mixture of the cyclometallated digold(I) complex [Au2(μ-6-MeC6H3-2-PPh2) 2] and the 'half-cyclometallated' complex [(Ph3As)Au(μ-6-MeC6H3-2-PPh 2)AuBr] (1). This complex represents the first example of an intermediate of a cycloauration reaction that has been structurally characterised by X-ray diffraction. The reaction of [Au2(μ-6-MeC6H3-2-PPh2) 2] with mercuric chloride gives the unusual heteronuclear Hg(II)/Au(I) complex [ClHg(μ-6-MeC6H3-2-PPh2)AuCl] (2), arising from electrophilic cleavage of a gold-carbon σ-bond, and not the oxidative addition product.

AB - The reaction of equimolar amounts of 2-Li-3-MeC6H3PPh2 and [AuBr(AsPh3)] gives a mixture of the cyclometallated digold(I) complex [Au2(μ-6-MeC6H3-2-PPh2) 2] and the 'half-cyclometallated' complex [(Ph3As)Au(μ-6-MeC6H3-2-PPh 2)AuBr] (1). This complex represents the first example of an intermediate of a cycloauration reaction that has been structurally characterised by X-ray diffraction. The reaction of [Au2(μ-6-MeC6H3-2-PPh2) 2] with mercuric chloride gives the unusual heteronuclear Hg(II)/Au(I) complex [ClHg(μ-6-MeC6H3-2-PPh2)AuCl] (2), arising from electrophilic cleavage of a gold-carbon σ-bond, and not the oxidative addition product.

KW - Binuclear

KW - Cyclometallated

KW - Gold

KW - Heteronuclear

UR - https://www.scopus.com/pages/publications/0043200951

U2 - 10.1016/S0020-1693(03)00128-2

DO - 10.1016/S0020-1693(03)00128-2

M3 - Article

SN - 0020-1693

VL - 352

SP - 19

EP - 23

JO - Inorganica Chimica Acta

JF - Inorganica Chimica Acta

ER -

Expect the unexpected. Isolation and characterisation of some unusual organometallic gold(I) complexes

Abstract

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