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

Journal Article · Thu Jun 02 00:00:00 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]

---

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), Vol. 98:22; ISSN 0022-3654
• Country of Publication: United States
• Language: English

Related Subjects

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