Publication type: Article in scientific journal
Type of review: Peer review (publication)
Title: Polarization of charge-transfer bands and rectification in hexadecylquinolinium 7,7,8-tricyanoquinodimethanide and its tetrafluoro analog
Authors: Honciuc, Andrei
Otsuka, Akihiro
Wang, Yu-Hsiang
McElwee, Samuel K.
Woski, Stephen A.
Saito, Gunzi
Metzger, Robert M.
DOI: 10.1021/jp056910q
Published in: The Journal of Physical Chemistry B
Volume(Issue): 110
Issue: 31
Pages: 15085
Pages to: 15093
Issue Date: 2006
Publisher / Ed. Institution: American Chemical Society
ISSN: 1520-6106
Language: English
Subjects: Electrodes; Gold; Molecular structure; Nitriles; Quinolines; Artificial membranes
Subject (DDC): 540: Chemistry
Abstract: A Langmuir-Blodgett (LB) multilayer film of the unimolecular rectifier hexadecyl-gamma-quinolinium-7,7,8-tricyanoquinodimethanide (C(16)H(33)gammaQ-3CNQ) has two distinct polarized charge-transfer bands, one at lower film pressures (28 mN m(-1)) with a peak at 530 nm, due to an intramolecular charge transfer or intervalence transfer (IVT); past the collapse point (32 to 35 mN m(-1)), this band disappears, and a new intermolecular charge-transfer band appears with peak at 570 nm. An LB multilayer film of the tetrafluoro analogue, hexadecyl-gamma-quinolinium-2,3,5,6-tetrafluoro-7,7,8-tricyanoquinodimethanide (C(16)H(33)gammaQ-3CNQF(4)) shows, for all film pressures, only one IVT band with a peak at 504 nm; when sandwiched between gold electrodes, (C(16)H(33)gammaQ-3CNQF(4) is also an LB monolayer electrical rectifier.
Fulltext version: Published version
License (according to publishing contract): Licence according to publishing contract
Departement: Life Sciences and Facility Management
Appears in collections:Publikationen Life Sciences und Facility Management

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