15n and 31p nmr studies of cyano(trialkyl/triaryl)phosphine gold(I) complexes

Naseem M. Akhtar; Ibrahim H. Gazi; Anvarhusein A. Isab; Abdul rahman Agarfaj; Mohammed I.M. Wazeer; Sakhawat M. Hussain

doi:10.1080/00958979508022555

15n and 31p nmr studies of cyano(trialkyl/triaryl)phosphine gold(I) complexes

Naseem M. Akhtar
, Ibrahim H. Gazi
, Anvarhusein A. Isab^*
, Abdul rahman Agarfaj
, Mohammed I.M. Wazeer
, Sakhawat M. Hussain

^*Corresponding author for this work

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

23 Scopus citations

Abstract

The ligand scrambling reaction of R₃PAuC¹⁵N to form (R₃P)₂Au⁺and Au(C¹⁵N)₂has been studied (by ¹⁵N and ³¹P NMR spectroscopy) for R = Me, Et, i-Pr, and Ph. ³¹P NMR showed two resonances due to R₃PAuCN and (R₃P)₂Au⁺ species, while ¹⁵N NMR showed only an averaged resonance due to R₃PAuC¹⁵N and Au(C¹⁵N)₂species, except for Et₃PAuC¹⁵N, for which two separate resonances were detected. R₃PAu¹³C¹⁵N (where R = Me, Et and Ph) complexes were also prepared and ²J(³¹P-¹³C) as well as ³J(³¹P-¹⁵N) constants were measured. The free activation energy for ligand scrambling in Ph₃PAuCN was determined by ^3IP NMR band shape analysis to be 39.7 kJ/mol ^-l.

Original language	English
Pages (from-to)	149-157
Number of pages	9
Journal	Journal of Coordination Chemistry
Volume	36
Issue number	2
DOIs	https://doi.org/10.1080/00958979508022555
State	Published - 1 Oct 1995

Keywords

cyanide
gold
nmr
phosphines
scrambling

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Materials Chemistry

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10.1080/00958979508022555

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@article{2821e17ef5d946e2806787f192cabb59,

title = "15n and 31p nmr studies of cyano(trialkyl/triaryl)phosphine gold(I) complexes",

abstract = "The ligand scrambling reaction of R3PAuC15N to form (R3P)2Au+and Au(C15N)2has been studied (by 15N and 31P NMR spectroscopy) for R = Me, Et, i-Pr, and Ph. 31P NMR showed two resonances due to R3PAuCN and (R3P)2Au+ species, while 15N NMR showed only an averaged resonance due to R3PAuC15N and Au(C15N)2species, except for Et3PAuC15N, for which two separate resonances were detected. R3PAu13C15N (where R = Me, Et and Ph) complexes were also prepared and 2J(31P-13C) as well as 3J(31P-15N) constants were measured. The free activation energy for ligand scrambling in Ph3PAuCN was determined by 3IP NMR band shape analysis to be 39.7 kJ/mol -l.",

keywords = "cyanide, gold, nmr, phosphines, scrambling",

author = "Akhtar, \{Naseem M.\} and Gazi, \{Ibrahim H.\} and Isab, \{Anvarhusein A.\} and Agarfaj, \{Abdul rahman\} and Wazeer, \{Mohammed I.M.\} and Hussain, \{Sakhawat M.\}",

year = "1995",

month = oct,

day = "1",

doi = "10.1080/00958979508022555",

language = "English",

volume = "36",

pages = "149--157",

journal = "Journal of Coordination Chemistry",

issn = "0095-8972",

publisher = "Taylor and Francis Ltd.",

number = "2",

}

TY - JOUR

T1 - 15n and 31p nmr studies of cyano(trialkyl/triaryl)phosphine gold(I) complexes

AU - Akhtar, Naseem M.

AU - Gazi, Ibrahim H.

AU - Isab, Anvarhusein A.

AU - Agarfaj, Abdul rahman

AU - Wazeer, Mohammed I.M.

AU - Hussain, Sakhawat M.

PY - 1995/10/1

Y1 - 1995/10/1

N2 - The ligand scrambling reaction of R3PAuC15N to form (R3P)2Au+and Au(C15N)2has been studied (by 15N and 31P NMR spectroscopy) for R = Me, Et, i-Pr, and Ph. 31P NMR showed two resonances due to R3PAuCN and (R3P)2Au+ species, while 15N NMR showed only an averaged resonance due to R3PAuC15N and Au(C15N)2species, except for Et3PAuC15N, for which two separate resonances were detected. R3PAu13C15N (where R = Me, Et and Ph) complexes were also prepared and 2J(31P-13C) as well as 3J(31P-15N) constants were measured. The free activation energy for ligand scrambling in Ph3PAuCN was determined by 3IP NMR band shape analysis to be 39.7 kJ/mol -l.

AB - The ligand scrambling reaction of R3PAuC15N to form (R3P)2Au+and Au(C15N)2has been studied (by 15N and 31P NMR spectroscopy) for R = Me, Et, i-Pr, and Ph. 31P NMR showed two resonances due to R3PAuCN and (R3P)2Au+ species, while 15N NMR showed only an averaged resonance due to R3PAuC15N and Au(C15N)2species, except for Et3PAuC15N, for which two separate resonances were detected. R3PAu13C15N (where R = Me, Et and Ph) complexes were also prepared and 2J(31P-13C) as well as 3J(31P-15N) constants were measured. The free activation energy for ligand scrambling in Ph3PAuCN was determined by 3IP NMR band shape analysis to be 39.7 kJ/mol -l.

KW - cyanide

KW - gold

KW - nmr

KW - phosphines

KW - scrambling

UR - https://www.scopus.com/pages/publications/0000030480

U2 - 10.1080/00958979508022555

DO - 10.1080/00958979508022555

M3 - Article

AN - SCOPUS:0000030480

SN - 0095-8972

VL - 36

SP - 149

EP - 157

JO - Journal of Coordination Chemistry

JF - Journal of Coordination Chemistry

IS - 2

ER -

15n and 31p nmr studies of cyano(trialkyl/triaryl)phosphine gold(I) complexes

Abstract

Keywords

ASJC Scopus subject areas

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