The vibrational properties of some gold(iii)-halide complexes

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Abstract

Raman and i.r. spectra of a range of gold complexes of the form LAuX3 (L = C6H5)3P, (C2H5)3P, pyridine, lutidene and α-picoline; X = Cl− or Br−) are reported and interpreted on the basis of a C2ν symmetry for the molecules. The effects of changes in the electronic structure appear to have a larger influence on the vibrational spectrum than steric or mass effects. The splitting of ν6(D4h) resulting from substitution by L is much larger in the bromide series than in the chloride series and is probably due to π bonding in the complexes. ν1 and ν2 energy changes reflect both a change in bonding and in a smaller mass and steric influence. The compounds Py2AuX3 appear to be trans isomers.
LanguageEnglish
Pages583-585
Number of pages2
JournalSpectrochimica acta. Part A: Molecular spectroscopy
Volume37
Issue number8
DOIs
Publication statusPublished - 1981

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Gold
Vibrational spectra
Isomers
Pyridine
Electronic structure
Substitution reactions
Molecules

Keywords

  • gold complexes
  • electronic structure
  • vibrational spectrum
  • vibrational properties
  • gold(iii)-halide

Cite this

@article{778517961d2542b083dfab3444866bcd,
title = "The vibrational properties of some gold(iii)-halide complexes",
abstract = "Raman and i.r. spectra of a range of gold complexes of the form LAuX3 (L = C6H5)3P, (C2H5)3P, pyridine, lutidene and α-picoline; X = Cl− or Br−) are reported and interpreted on the basis of a C2ν symmetry for the molecules. The effects of changes in the electronic structure appear to have a larger influence on the vibrational spectrum than steric or mass effects. The splitting of ν6(D4h) resulting from substitution by L is much larger in the bromide series than in the chloride series and is probably due to π bonding in the complexes. ν1 and ν2 energy changes reflect both a change in bonding and in a smaller mass and steric influence. The compounds Py2AuX3 appear to be trans isomers.",
keywords = "gold complexes, electronic structure, vibrational spectrum, vibrational properties, gold(iii)-halide",
author = "A.A. McConnell and D.H. Brown and W.E. Smith",
year = "1981",
doi = "10.1016/0584-8539(81)80051-7",
language = "English",
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pages = "583--585",
journal = "Spectrochimica acta. Part A: Molecular spectroscopy",
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number = "8",

}

The vibrational properties of some gold(iii)-halide complexes. / McConnell, A.A.; Brown, D.H.; Smith, W.E.

In: Spectrochimica acta. Part A: Molecular spectroscopy, Vol. 37, No. 8, 1981, p. 583-585.

Research output: Contribution to journalArticle

TY - JOUR

T1 - The vibrational properties of some gold(iii)-halide complexes

AU - McConnell, A.A.

AU - Brown, D.H.

AU - Smith, W.E.

PY - 1981

Y1 - 1981

N2 - Raman and i.r. spectra of a range of gold complexes of the form LAuX3 (L = C6H5)3P, (C2H5)3P, pyridine, lutidene and α-picoline; X = Cl− or Br−) are reported and interpreted on the basis of a C2ν symmetry for the molecules. The effects of changes in the electronic structure appear to have a larger influence on the vibrational spectrum than steric or mass effects. The splitting of ν6(D4h) resulting from substitution by L is much larger in the bromide series than in the chloride series and is probably due to π bonding in the complexes. ν1 and ν2 energy changes reflect both a change in bonding and in a smaller mass and steric influence. The compounds Py2AuX3 appear to be trans isomers.

AB - Raman and i.r. spectra of a range of gold complexes of the form LAuX3 (L = C6H5)3P, (C2H5)3P, pyridine, lutidene and α-picoline; X = Cl− or Br−) are reported and interpreted on the basis of a C2ν symmetry for the molecules. The effects of changes in the electronic structure appear to have a larger influence on the vibrational spectrum than steric or mass effects. The splitting of ν6(D4h) resulting from substitution by L is much larger in the bromide series than in the chloride series and is probably due to π bonding in the complexes. ν1 and ν2 energy changes reflect both a change in bonding and in a smaller mass and steric influence. The compounds Py2AuX3 appear to be trans isomers.

KW - gold complexes

KW - electronic structure

KW - vibrational spectrum

KW - vibrational properties

KW - gold(iii)-halide

UR - http://dx.doi.org/10.1016/0584-8539(81)80051-7

U2 - 10.1016/0584-8539(81)80051-7

DO - 10.1016/0584-8539(81)80051-7

M3 - Article

VL - 37

SP - 583

EP - 585

JO - Spectrochimica acta. Part A: Molecular spectroscopy

T2 - Spectrochimica acta. Part A: Molecular spectroscopy

JF - Spectrochimica acta. Part A: Molecular spectroscopy

SN - 0584-8539

IS - 8

ER -