Synthesis and solution multinuclear nuclear magnetic resonance studies of homoleptic copper(I) complexes of group 15 donor ligands

Jane R. Black*, William Levason, Mark D. Spicer, Michael Webster

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

66 Citations (Scopus)

Abstract

The homoleptic complexes [CuL4]Y (L = PMe3, PMe2Ph, PMePh2, PPh3, PPh2H, PPhH2, AsMe3, AsMe2Ph, AsMePh2, AsPh3, SbMe3, SbEt3 or SbPh3; Y = PF6 or BF4) and [Cu(L-L)2]Y [L-L = Me2P(CH2)2PMe2, o-C6H4(PMe2)2, Ph2P(CH2)nPPh2 (n = 1-4), cis-Ph2PCH=CHPPh2, o-C6H4(PPh2)2, o-C6H4(AsMe2)2, cis-Ph2AsCH=CHAsPh2, o-C6H4(SbMe2)2, Me2Sb(CH2)3SbMe2 or Ph2Sb(CH2)3SbPh2] have been prepared from [Cu(MeCN)4]Y and L or L-L. The 63Cu and, where appropriate, 31P-{1H} NMR spectra, have been recorded from CH2Cl2 solutions of the complexes over the temperature range 300-175 K, including the first reported 63Cu resonances from arsenic and antimony donor ligand compounds. The effects of ligand size and geometry upon the 63Cu NMR spectra are discussed and typical copper chemical-shift ranges for Group 15 donor ligand compounds established. The structure of [Cu(cis-Ph2AsCH=CHAsPh2)2]PF6 has been established by X-ray crystallography: orthorhombic, space group P212121, a = 14.775(6), b = 16.991(5), c = 21.027(6) Å, Z = 4. The copper atom is in a distorted tetrahedral environment [Cu-As 2.348(3)-2.358(3) Å].

Original languageEnglish
Pages (from-to)3129-3136
Number of pages8
JournalJournal of the Chemical Society, Dalton Transactions
Issue number20
DOIs
Publication statusPublished - 1993
Externally publishedYes

ASJC Scopus subject areas

  • General Chemistry

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