Triplet-triplet energy transfer in a copper(II) porphyrin-free-base porphyrin dimer
Journal Article
·
· J. Phys. Chem.; (United States)
Energy transfer from the excited triplet (trip-doublet and trip-quartet) state of copper porphyrin to the lowest excited triplet state of its free-base partner was detected by measurements of T-T transient absorption of a -(CH/sub 2/)/sub 3/- covalently linked porphyrin dimer. The excited dimer with free-base in the excited singlet is partly quenched by the copper counterpart. On the other hand, the excited dimer with copper porphyrin in the trip-multiplet state is dissipated not only by the fast electronic relaxation within the copper porphyrin but also by the intramolecular energy transfer to the free-base partner.
- Research Organization:
- Tokyo Institute of Technology, Japan
- OSTI ID:
- 6137972
- Journal Information:
- J. Phys. Chem.; (United States), Journal Name: J. Phys. Chem.; (United States) Vol. 91:16; ISSN JPCHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
CARBOXYLIC ACIDS
COMPLEXES
COPPER COMPLEXES
DATA
DE-EXCITATION
DIMERS
EMISSION SPECTROSCOPY
ENERGY LEVELS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
EXPERIMENTAL DATA
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INFORMATION
MULTIPLETS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PORPHYRINS
RADIATIONLESS DECAY
SPECTROSCOPY
TRANSITION ELEMENT COMPLEXES
TRIPLETS
400201* -- Chemical & Physicochemical Properties
ABSORPTION SPECTROSCOPY
CARBOXYLIC ACIDS
COMPLEXES
COPPER COMPLEXES
DATA
DE-EXCITATION
DIMERS
EMISSION SPECTROSCOPY
ENERGY LEVELS
ENERGY TRANSFER
ENERGY-LEVEL TRANSITIONS
EXCITED STATES
EXPERIMENTAL DATA
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
INFORMATION
MULTIPLETS
NUMERICAL DATA
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PORPHYRINS
RADIATIONLESS DECAY
SPECTROSCOPY
TRANSITION ELEMENT COMPLEXES
TRIPLETS