Phase transition in C60-2-thioxo-1,3-dithiole cycloadduct

被引：4

作者：

Kityk, IV

Bragiel, P

Piasecki, M

Sahraoui, B

Hudhomme, P

Gorgues, A

机构：

[1] Pedag Univ Czestochowa, Inst Phys, PL-42200 Czestochowa, Poland

[2] Univ Angers, Lab POMA, CNRS, EP 130 2, F-49045 Angers, France

[3] Univ Nantes, CNRS, UMR 6513, Organ Synth Lab, F-443322 Nantes, France

来源：

PHASE TRANSITIONS | 2001年 / 74卷 / 04期

关键词：

phase transition; fullerene derivatives; quadratic electrooptics effect;

D O I：

10.1080/01411590108227580

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

Quadratic electrooptic coefficient (QEOC) measurements have been made for fullerene C-60 and its derivative C-60-2-thioxo-1,3-dithiole. An anomaly in C-p has been revealed at about -60degreesC that corresponds to the appearance of a structural: phase transition. Correlation with a temperature anomaly in the QEOC is revealed. This leads to the conclusion that the QEOC for fullerene depends mainly on vibrational and rotational contributions, The contribution arising from charge distribution asymmetry is most important in the fullerene derivative. The observed temperature anomalies of the QEOC result in the possibility of using the QEOC as a sensitive tool for observing low-temperature phase transitions in the fullerene derivatives.

引用

页码：347 / 352

页数：6

共 6 条

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