Charge separation in triplet C[sub 60]/TMPD exciplexes

Journal Article · Thu Jun 02 04:00:00 EDT 1994 · Journal of Physical Chemistry; (United States)

DOI:https://doi.org/10.1021/j100073a015· OSTI ID:7015435

Grzeskowiak, K N; Smirnov, S N; Braun, C L ^[1]

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1. Darmouth College, Hanover, NH (United States)

A transient dc photoconductivity technique was used to demonstrate the formation of dipolar exciplexes of the triplet C[sub 60] state with N,N,N[prime],N[prime]-tetramethyl-1,4-phenylendiamine (TMPD) in toluene. The dipole moment of the [sup 3]C[sub 60]/TMPD exciplex was measured to be 35 [+-] 4D. Unit charges separated by 7.1 [angstrom] the center-to-center distance estimated for C[sub 60] in van der Waals contact with TMPD, correspond to a dipole moment of 34D. This implies that the triplet exciplex has essentially complete charge transfer. The lifetime of the exciplex was determined to be 7 [+-] 2 ns. 24 refs., 3 figs.

• DOE Contract Number: FG02-86ER13592
• OSTI ID: 7015435
• Journal Information: Journal of Physical Chemistry; (United States), Journal Name: Journal of Physical Chemistry; (United States) Vol. 98:22; ISSN JPCHAX; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201* -- Chemical & Physicochemical Properties
400500 -- Photochemistry
99 GENERAL AND MISCELLANEOUS
990200 -- Mathematics & Computers
ALKYLATED AROMATICS
AMINES
AROMATICS
CARBON
CHARGE TRANSPORT
COMPLEXES
DIPOLE MOMENTS
DISPERSIONS
ELECTRIC CONDUCTIVITY
ELECTRICAL PROPERTIES
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FULLERENES
HYDROCARBONS
LASERS
LIFETIME
MATHEMATICAL MODELS
MIXTURES
MULTIPLETS
NONMETALS
ORGANIC COMPOUNDS
PHOTOCONDUCTIVITY
PHYSICAL PROPERTIES
SOLUTIONS
TOLUENE
TRIPLETS