Inter-porphyrin coupling:: rotation-modulation of inter-ring coupling in a μ-oxo-silicon phthalocyanine dimer

被引：14

作者：

Binstead, RA

Reimers, JR ^{[1
]}

Hush, NS

机构：

[1] Univ Sydney, Sch Chem, Sydney, NSW 2006, Australia

[2] Univ Sydney, Sch Microbial & Biomol Sci, Sydney, NSW 2006, Australia

来源：

CHEMICAL PHYSICS LETTERS | 2003年 / 378卷 / 5-6期

关键词：

D O I：

10.1016/j.cplett.2003.08.003

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Photoelectron and intervalence absorption spectra of a cofacially stacked mu-oxo silicon phthalocyanine dimer are interpreted as arising from one of two possible sinusoidal forms of the inter-ring electronic coupling J as a function of rotation about the mu-oxo linkage. Of these, only one corresponds qualitatively to the 'theoretical predictions of Pietro, Marks and Ratner, with J having extremum values of 0.32 eV (eclipsed) and -0.16 eV (staggered). The eclipsed interring coupling is found to be insensitive to the form of the individual molecular orbitals involved, and spectra for the corresponding trimer are successfully interpreted in terms of an exciton model. (C) 2003 Published by Elsevier B.V.

引用

页码：654 / 659

页数：6

共 14 条

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