[{(CEP)2Au}+{Au(CN)2}-]: A compound with gold-gold bonds

M. Sakhawat Hussain; A. R. Al-Arfaj; M. Naseem Akhtar; Anvarhusein A. Isab

doi:10.1016/0277-5387(95)00551-X

[{(CEP)₂Au}⁺{Au(CN)₂}^-]: A compound with gold-gold bonds

M. Sakhawat Hussain^*, A. R. Al-Arfaj, M. Naseem Akhtar, Anvarhusein A. Isab

^*Corresponding author for this work

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

30 Scopus citations

Abstract

Tris(2-cyanoethyl)phosphine (CEP) acts as a phosphorus-donor ligand forming strong metal phosphorus bonds in several metal complexes. It forms monomeric complexes with AuCl and AuBr, whereas an ionic complex [{(CEP)₂Au}⁺{Au(CN)₂}^-] (I) was formed with AuCN, presumably as a result of ligand scrambling in solution. The X-ray structure of I revealed mutually perpendicular [(CEP)Au(CEP)]⁺ and [(CN)Au(CN)]^- ions, with an Au-Au separation of 3.279(2) Å. No inter-or intramolecular metal coordination of C≡N groups was observed. There are two three-coordinated gold atoms per asymmetric unit, with a packing pattern based upon alternating [(CEP)₂Au]⁺ and [Au(CN)₂]^- ions. The presence of C≡N groups in gold complexes of trialkylphosphines appears to be conducive towards ligand scrambling reactions forming ionic complexes, as compared to the monomeric linear species in the case of chloro or bromo complexes.

Original language	English
Pages (from-to)	2781-2785
Number of pages	5
Journal	Polyhedron
Volume	15
Issue number	16
DOIs	https://doi.org/10.1016/0277-5387(95)00551-X
State	Published - Aug 1996

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Inorganic Chemistry
Materials Chemistry

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10.1016/0277-5387(95)00551-X

Cite this

@article{179412038b5c46dcb38fb258e2486330,

title = "[\{(CEP)2Au\}+\{Au(CN)2\}-]: A compound with gold-gold bonds",

abstract = "Tris(2-cyanoethyl)phosphine (CEP) acts as a phosphorus-donor ligand forming strong metal phosphorus bonds in several metal complexes. It forms monomeric complexes with AuCl and AuBr, whereas an ionic complex [\{(CEP)2Au\}+\{Au(CN)2\}-] (I) was formed with AuCN, presumably as a result of ligand scrambling in solution. The X-ray structure of I revealed mutually perpendicular [(CEP)Au(CEP)]+ and [(CN)Au(CN)]- ions, with an Au-Au separation of 3.279(2) {\AA}. No inter-or intramolecular metal coordination of C≡N groups was observed. There are two three-coordinated gold atoms per asymmetric unit, with a packing pattern based upon alternating [(CEP)2Au]+ and [Au(CN)2]- ions. The presence of C≡N groups in gold complexes of trialkylphosphines appears to be conducive towards ligand scrambling reactions forming ionic complexes, as compared to the monomeric linear species in the case of chloro or bromo complexes.",

author = "Hussain, \{M. Sakhawat\} and Al-Arfaj, \{A. R.\} and Akhtar, \{M. Naseem\} and Isab, \{Anvarhusein A.\}",

year = "1996",

month = aug,

doi = "10.1016/0277-5387(95)00551-X",

language = "English",

volume = "15",

pages = "2781--2785",

journal = "Polyhedron",

issn = "0277-5387",

number = "16",

}

TY - JOUR

T1 - [{(CEP)2Au}+{Au(CN)2}-]

T2 - A compound with gold-gold bonds

AU - Hussain, M. Sakhawat

AU - Al-Arfaj, A. R.

AU - Akhtar, M. Naseem

AU - Isab, Anvarhusein A.

PY - 1996/8

Y1 - 1996/8

N2 - Tris(2-cyanoethyl)phosphine (CEP) acts as a phosphorus-donor ligand forming strong metal phosphorus bonds in several metal complexes. It forms monomeric complexes with AuCl and AuBr, whereas an ionic complex [{(CEP)2Au}+{Au(CN)2}-] (I) was formed with AuCN, presumably as a result of ligand scrambling in solution. The X-ray structure of I revealed mutually perpendicular [(CEP)Au(CEP)]+ and [(CN)Au(CN)]- ions, with an Au-Au separation of 3.279(2) Å. No inter-or intramolecular metal coordination of C≡N groups was observed. There are two three-coordinated gold atoms per asymmetric unit, with a packing pattern based upon alternating [(CEP)2Au]+ and [Au(CN)2]- ions. The presence of C≡N groups in gold complexes of trialkylphosphines appears to be conducive towards ligand scrambling reactions forming ionic complexes, as compared to the monomeric linear species in the case of chloro or bromo complexes.

AB - Tris(2-cyanoethyl)phosphine (CEP) acts as a phosphorus-donor ligand forming strong metal phosphorus bonds in several metal complexes. It forms monomeric complexes with AuCl and AuBr, whereas an ionic complex [{(CEP)2Au}+{Au(CN)2}-] (I) was formed with AuCN, presumably as a result of ligand scrambling in solution. The X-ray structure of I revealed mutually perpendicular [(CEP)Au(CEP)]+ and [(CN)Au(CN)]- ions, with an Au-Au separation of 3.279(2) Å. No inter-or intramolecular metal coordination of C≡N groups was observed. There are two three-coordinated gold atoms per asymmetric unit, with a packing pattern based upon alternating [(CEP)2Au]+ and [Au(CN)2]- ions. The presence of C≡N groups in gold complexes of trialkylphosphines appears to be conducive towards ligand scrambling reactions forming ionic complexes, as compared to the monomeric linear species in the case of chloro or bromo complexes.

UR - https://www.scopus.com/pages/publications/0001612538

U2 - 10.1016/0277-5387(95)00551-X

DO - 10.1016/0277-5387(95)00551-X

M3 - Article

AN - SCOPUS:0001612538

SN - 0277-5387

VL - 15

SP - 2781

EP - 2785

JO - Polyhedron

JF - Polyhedron

IS - 16