Synchrotron-radiation study of the five-dimensional modulated phase of tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ) at 15 K

Journal Article · Mon Oct 12 00:00:00 EDT 1987 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.59.1695· OSTI ID:5955994

Coppens, P; Petricek, V; Levendis, D; Larsen, F K; Paturle, A; Yan, G; LeGrand, A D

The 2k/sub F/ modulated structure of tetrathiafulvalene-tetracyanoquinodimethane (TTF-TCNQ) at 15 K has been analyzed by use of a set of satellite intensities collected at the National Synchrotron Light Source. The analysis in the five-dimensional superspace group P:P2/sub 1//c:cmm shows the largest modulation to be a slip of the TTF molecules with an amplitude of about 0.02 A, in the direction of the long molecular axis of the molecule. The TCNQ translational modulations are similar, but of much smaller magnitude . Rotations about the long molecular axes of both type of molecules are also observed.

• Research Organization: Chemistry Department, State University of New York at Buffalo, Buffalo, New York 14214
• OSTI ID: 5955994
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 59:15
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
TTF-TCNQ
PHASE STUDIES
AMPLITUDES
FINE STRUCTURE
LIGHT SOURCES
MANY-DIMENSIONAL CALCULATIONS
SUPERSYMMETRY
SYNCHROTRON RADIATION
VERY LOW TEMPERATURE
BREMSSTRAHLUNG
ELECTROMAGNETIC RADIATION
HETEROCYCLIC COMPOUNDS
NITRILES
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
ORGANIC SULFUR COMPOUNDS
RADIATION SOURCES
RADIATIONS
SYMMETRY
360602* - Other Materials- Structure & Phase Studies