Luminescentnido-Carborane−Diphosphine Anions [(PR2)2C2B9H10]-(R = Ph,iPr). Modification of Their Luminescence Properties upon Formation of Three-Coordinate Gold(I) Complexes
- 19 February 2003
- journal article
- research article
- Published by American Chemical Society (ACS) in Inorganic Chemistry
- Vol. 42 (6) , 2061-2068
- https://doi.org/10.1021/ic0259843
Abstract
The free nido-diphosphine anions [(PR2)2C2B9H10]- (R = Ph, iPr) show luminescence properties whereas the closo-diphosphines [(PR2)2C2B10H10] do not. Four families of three-coordinate complexes of stoichiometry [Au{(PR2)2C2B10H10}L]OTf (L = tertiary phosphine) and [Au{(PR2)2C2B9H10}L] have been studied in order to analyze the influence of the closo- or nido-nature of the diphosphine, the monophosphine coordinated to gold and the substituent at the diphosphine on the luminescence of the complexes. Only the nido-derivatives show luminescence. The maxima of the emissions are shifted to lower energies than those of the corresponding free nido-diphosphines. When the substituent at the diphosphine is phenyl, a new emission appears, which has been assigned as arising from a metal to ligand charge transfer [Au→π*(L)] excited state.Keywords
This publication has 51 references indexed in Scilit:
- Mechano- and Electroluminescence of a Dissymmetric Hafnium Carborane ComplexAdvanced Materials, 2001
- Luminescent Characterization of Solution Oligomerization Process Mediated Gold−Gold Interactions. DFT Calculations on [Au2Ag2R4L2]nMoietiesJournal of the American Chemical Society, 2000
- On the Second-Order Nonlinear Optical Structure−Property Relationships of Metal ChromophoresInorganic Chemistry, 1999
- Effects of Carborane-Containing Liquid Crystals on the Stability of Smectic PhasesChemistry of Materials, 1998
- An assessment of carborane-containing liquid crystals for potential device applicationJournal of Materials Chemistry, 1998
- Recognition of Electron-Donating Guests by Carborane-Supported Multidentate Macrocyclic Lewis Acid Hosts: Mercuracarborand ChemistryAccounts of Chemical Research, 1997
- Silver complexes with the nido-diphosphine [7,8-(PPh2)2-7,8-C2B9H10]?J. Chem. Soc., Dalton Trans., 1996
- Gold(I) Complexes with the nido-Diphosphino Ligand [7,8-(Ph2P)2-7,8-C2B9H10]-. Preparation of the First Metallocarborane Complex of this Ligand. Crystal Structures of [Au{(PPh2)2C2B9H10}(PPh3)]·CH2Cl2 and [Au2{(PPh2)2C2B9H10}2{(PPh2)2(CH2)3}]·3Me2COInorganic Chemistry, 1996
- Energy-adjustedab initio pseudopotentials for the second and third row transition elementsTheoretical Chemistry Accounts, 1990
- Dicarbaundecaborane(13) and DerivativesJournal of the American Chemical Society, 1964