|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|
McElwee, Samuel K.
Woski, Stephen A.
Metzger, Robert M.
|Published in:||The Journal of Physical Chemistry B|
|Publisher / Ed. Institution:||American Chemical Society|
|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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