Structural Properties of Tetra-tert-butyl Zinc(II) Phthalocyanine Isomers on a Au(111) Surface

Structural Properties of Tetra-tert-butyl Zinc(II) Phthalocyanine Isomers on a Au(111) Surface

The self-assembly behavior of the mixture of tetra-tert-butyl zinc(II) phthalocyanine (TB-ZnPc) isomers on a Au(111) surface has been investigated by means of scanning tunneling microscopy (STM). Four tert-butyl groups are added to four peripheral benzene rings of zinc(II) phthalocyanine, which give...

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Veröffentlicht in:Journal of physical chemistry. C 2009-07, Vol.113 (26), p.11223-11227
Hauptverfasser: Deng, Z. T, Guo, H. M, Guo, W, Gao, L, Cheng, Z. H, Shi, D. X, Gao, H.-J
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C: Nanops and Nanostructures
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container_issue 26
container_start_page 11223
container_title Journal of physical chemistry. C
container_volume 113
creator Deng, Z. T
Guo, H. M
Guo, W
Gao, L
Cheng, Z. H
Shi, D. X
Gao, H.-J
description The self-assembly behavior of the mixture of tetra-tert-butyl zinc(II) phthalocyanine (TB-ZnPc) isomers on a Au(111) surface has been investigated by means of scanning tunneling microscopy (STM). Four tert-butyl groups are added to four peripheral benzene rings of zinc(II) phthalocyanine, which gives the planar molecules a three-dimensional structure. Two possible substituting locations for each tert-butyl group result in a mixture of structural isomers, which are easily identified by STM. Two different structures have been distinguished in the monolayer regime depending on the preparation procedure. One is a quasi-ordered structure whereby the molecules are arranged in the closest-packed way, and the second is an ordered structure in which the molecules are arranged side by side. The more ordered molecular network in the latter is considered to be a consequence of unification of TB-ZnPc isomers.
doi_str_mv 10.1021/jp901193h
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title Structural Properties of Tetra-tert-butyl Zinc(II) Phthalocyanine Isomers on a Au(111) Surface
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