METAL ISOTOPE EFFECT ON METAL-LIGAND VIBRATIONS: V. CIS AND TRANS Ni(II) PHOSPHINE-HALIDE COMPLEXES
- 1 November 1971
- journal article
- research article
- Published by Taylor & Francis in Journal of Coordination Chemistry
- Vol. 1 (2), 89-93
- https://doi.org/10.1080/00958977108070749
Abstract
Infrared spectra (4000–200 cm−1) have been reported for Ni(DPE)X2 where X is Cl, Br and I and DPE is 1,2-bis(diphenylphosphino)ethane. The Ni[sbnd]X and Ni[sbnd]P stretching bands have been assigned based on the observed isotopic shifts due to the 58Ni-62Ni substitution. The Ni[sbnd]X stretching frequencies are always lower and the Ni[sbnd]P stretching frequencies are always higher in the cis-complexes such as Ni(DPE)X2 than in the corresponding trans-complexes such as Ni(PEt3)2X2. These differences between cis and trans configurations have been attributed to the strong trans-effect of phosphine ligands.Keywords
This publication has 17 references indexed in Scilit:
- Metal isotope effect on metal-ligand vibrations. IV. Metal complexes of acetylacetoneJournal of the American Chemical Society, 1970
- Metal isotope effect on metal-ligand vibrations. III. .pi.-Allyl complexes of palladium(II)Journal of the American Chemical Society, 1970
- Metal isotope effect on metal-ligand vibrations. II. Tris complexes of 2,2'-bipyridine and 1,10-phenanthrolineJournal of the American Chemical Society, 1970
- Metal isotope effect on metal-ligand vibrations. I. Phosphine complexesJournal of the American Chemical Society, 1970
- Use of metal isotopes in assigning metal–ligand vibrationsJournal of the Chemical Society D: Chemical Communications, 1969
- Stereochemistry of nickel(II) halide-phosphine complexes by far-infrared spectroscopyInorganic and Nuclear Chemistry Letters, 1968
- Ditertiary arsine and phosphine compounds of nickel(II), palladium(II), and platinum(II)J. Chem. Soc. A, 1968
- Ditertiary Phosphine Complexes of Nickel. SpeCtral, Magnetic, and Proton Resonance Studies. A Planar-Tetrahedral EquilibriumInorganic Chemistry, 1966
- Identification of the stereochemistry of square planar bis-triethylphosphine complexes by infrared spectroscopyJ. Chem. Soc. A, 1966
- 64. Tertiary phosphine complexes of trimethylgold: infrared spectra of complexes of gold and some other metalsJournal of the Chemical Society, 1963