Multiple luminescence from borohydridobis(triphenylphosphine) copper(I)
Low-temperature (77 K) luminescence spectra and lifetimes have been measured for the Cu(PPh/sub 3/)/sub 2/BH/sub 4/ (PPh/sub 3/ is triphenylphosphine) and Cu(prophos)BH/sub 4/ (prophos is 1,3-bis(diphenylphosphino)propane) complexes. Cu(PPh/sub 3/)/sub 2/BH/sub 4/ exhibits multiple emission from /sup 3/IIII* and /sup 3/(sigma-a/sub ..pi../) excited states in appropriate solvents, while Cu(prophos)BH/sub 4/ shows only a single /sup 3/(sigma-a/sub ..pi../) emission in most of the solvents chosen for this study. The electronic transition associated with the sigma-a/sub ..pi../ assignment is analogous to the l-a/sub ..pi../ transition for the free phosphine ligand. These unique emission results are discussed in terms of intramolecular and intermolecular (solvent-solute) effects. 23 references, 4 figures, 2 tables.
- Research Organization:
- North Carolina State Univ., Raleigh
- DOE Contract Number:
- FG02-79ER10540
- OSTI ID:
- 6508673
- Journal Information:
- Inorg. Chem.; (United States), Journal Name: Inorg. Chem.; (United States) Vol. 23:18; ISSN INOCA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400201* -- Chemical & Physicochemical Properties
400301 -- Organic Chemistry-- Chemical & Physicochemical Properties-- (-1987)
ALKANES
ALKYLATED AROMATICS
AROMATICS
BORON COMPOUNDS
BORON HYDRIDES
COMPLEXES
COPPER COMPLEXES
CORRELATIONS
CYCLOALKANES
CYCLOHEXANE
DATA
DATA ANALYSIS
ELECTRONIC STRUCTURE
EMISSION SPECTRA
ENERGY LEVELS
EXCITED STATES
EXPERIMENTAL DATA
GLASS
HYDRIDES
HYDROCARBONS
HYDROGEN COMPOUNDS
INFORMATION
LOW TEMPERATURE
LUMINESCENCE
NUMERICAL DATA
ORGANIC COMPOUNDS
PHOSPHINES
PHOSPHORUS COMPOUNDS
SOLVENT PROPERTIES
SPECTRA
STRUCTURAL CHEMICAL ANALYSIS
TIME DEPENDENCE
TOLUENE
TRANSITION ELEMENT COMPLEXES