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Lateral distribution of N3 dye molecules on TiO2(1 1 0) surface

Paper ID Volume ID Publish Year Pages File Format Full-Text
28276 44067 2009 6 PDF Available
Title
Lateral distribution of N3 dye molecules on TiO2(1 1 0) surface
Abstract

The lateral distribution of Ru(4,4′-dicarboxy-2,2′-bipyridine)2(NCS)2 (N3) dye molecules on a titanium dioxide (TiO2) surface was examined by using a scanning tunneling microscope. Pivalate ((CH3)3CCOO−) -covered rutile TiO2(1 1 0) surfaces were immersed in acetonitrile containing the N3 dye. The N3 molecules which replaced the pivalates were observed as protrusions embedded in the pivalate monolayer. A two-dimensional radial distribution function indicated that the adsorbed N3 molecules tended to be aggregated. Trapping of an N3 molecule in the solution by a preadsorbed N3 molecule was proposed as a driving force for the aggregation. The hydrogen bonds between the carboxyl groups of two N3 molecules contribute to the trapping.

Keywords
N3; Titanium dioxide; Scanning tunneling microscopy; Aggregation; Autocorrelation analysis
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Lateral distribution of N3 dye molecules on TiO2(1 1 0) surface
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Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology A: Chemistry - Volume 202, Issues 2–3, 25 February 2009, Pages 185–190
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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