Aggregation of slipped-cofacial phthalocyanine J-type dimers: Spectroscopic and AFM study

被引：15

作者：

Tolbin, Alexander Yu. ^{[1
,2
]}

Pushkarev, Victor E. ^{[1
,2
]}

Sedova, Marina V. ^{[3
]}

Maklakov, Sergey S. ^{[3
]}

Tomilova, Larisa G. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Inst Physiol Act Cpds, Chernogolovka 142432, Moscow Region, Russia

[2] Moscow MV Lomonosov State Univ, Dept Chem, Moscow 119991, Russia

[3] RAS, ITAE, Izhorskaya St 13, Moscow 125412, Russia

来源：

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY | 2018年 / 205卷

基金：

俄罗斯科学基金会; 俄罗斯基础研究基金会;

关键词：

Aggregation; AFM study; Nonlinear absorbance; Beer's law; Deviation; Phthalocyanine; J-type dimers; NONLINEAR ABSORBERS; SPECTRAL PROPERTIES; ZINC; FLUORESCENCE; COMPLEXES; WATER; LAW; ABSORPTION;

D O I：

10.1016/j.saa.2018.07.052

中图分类号：

O433 [光谱学];

学科分类号：

0703 ; 070302 ;

摘要：

Direct metallation of 2-hydroxyphthalocyanine J-type slipped-cofacial dimeric ligand by Mg, Zn, Cu, Ni and Co salts has been carried out to obtain corresponding metal complexes selectively without any noticeable dissociation or polymerization of the starting ligand. Integrated analysis of aggregation properties in the synthesized series has been conducted with the involvement of AFM microscopy, UV/Vis spectroscopy and theoretical assessment. As a result, a nonlinear relationship between absorption and concentration was found, with aggregation beginning to appear at concentrations above 33 x 10(-5) mol L-1 with predominant formation of trimers from the dimeric molecules in THF solutions. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：335 / 340

页数：6

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