Co-aggregation of fullerene C60 and thiophene in the non-aromatic solvent cyclohexene

被引：6

作者：

Borovkov, NY ^{[1
]}

Blokhina, SV ^{[1
]}

Kutepov, AM ^{[1
]}

Lebedeva, NS ^{[1
]}

Pavlycheva, NA ^{[1
]}

机构：

[1] Russian Acad Sci, Inst Solut Chem, Ivanovo 153045, Russia

来源：

THERMOCHIMICA ACTA | 2005年 / 430卷 / 1-2期

基金：

俄罗斯基础研究基金会;

关键词：

fullerene; C-60; thiophene; aggregation;

D O I：

10.1016/j.tca.2005.01.053

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Co-aggregation of fullerene C-60 and thiophene has been studied calorimetrically in cyclohexene at 25 degrees C. The total aggregation heat is found to depend on initial concentration of thiophene and fall between -1.9 and -5.8 kJ mol(-1). The corresponding thiophene/fullerene molar ratio ("co-aggregation number") ranges from 7 to 12. The data are rationalized by formation of heteromolecular nanoaggregates with intermolecular contacts of both fullerene-thiophene and fullerene-fullerene types. A physical model describing interaction between fullerenes and pi-donors in solution is substantiated and used to explain heterogeneity of composites containing fullerenes. (c) 2005 Elsevier B.V. All rights reserved.

引用

页码：167 / 171

页数：5

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