Synthesis, characterization, and mesomorphic properties of a mixed [60]fullerene-ferrocene liquid-crystalline dendrimer

被引:92
作者
Dardel, B [1 ]
Deschenaux, R [1 ]
Even, M [1 ]
Serrano, E [1 ]
机构
[1] Univ Neuchatel, Inst Chim, CH-2000 Neuchatel, Switzerland
关键词
D O I
10.1021/ma990034v
中图分类号
O63 [高分子化学(高聚物)];
学科分类号
070305 ; 080501 ; 081704 ;
摘要
Addition reaction of the malonate-based second-generation ferrocene-containing liquid-crystalline dendrimer 16 to [60]fullerene led to the title compound 1. Molecule 1 showed good solubility in common organic solvents and good thermal stability. Examination of its mesomorphic properties revealed the presence of an enantiotropic smectic A phase, which was identified by polarized optical microscopy from the observation of typical focal-conic and homeotropic textures. The dendritic addend 16 exhibited similar properties as those of the fullerene-based dendrimer. The results described in this report open the way to the elaboration of fullerene-containing liquid-crystalline macromolecules.
引用
收藏
页码:5193 / 5198
页数:6
相关论文
共 39 条
[1]  
Baars MWPL, 1998, CHEM-EUR J, V4, P2456, DOI 10.1002/(SICI)1521-3765(19981204)4:12<2456::AID-CHEM2456>3.0.CO
[2]  
2-L
[3]   CYCLOPROPYLATION OF FULLERENES [J].
BINGEL, C .
CHEMISCHE BERICHTE-RECUEIL, 1993, 126 (08) :1957-1959
[4]  
Bourgeois JP, 1998, HELV CHIM ACTA, V81, P1835, DOI 10.1002/(SICI)1522-2675(19981007)81:10<1835::AID-HLCA1835>3.0.CO
[5]  
2-N
[6]   A highly water-soluble dendro[60]fullerene [J].
Brettreich, M ;
Hirsch, A .
TETRAHEDRON LETTERS, 1998, 39 (18) :2731-2734
[7]   Synthesis of a novel dendritic liquid crystalline polymer showing a ferroelectric SmC* phase [J].
Busson, P ;
Ihre, H ;
Hult, A .
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1998, 120 (35) :9070-9071
[8]   Stable Langmuir and Langmuir-Blodgett films of fullerene-glycodendron conjugates [J].
Cardullo, F ;
Diederich, F ;
Echegoyen, L ;
Habicher, T ;
Jayaraman, N ;
Leblanc, RM ;
Stoddart, JF ;
Wang, SP .
LANGMUIR, 1998, 14 (08) :1955-1959
[9]   First fullerene[60]-containing thermotropic liquid crystal - Preliminary communication [J].
Chuard, T ;
Deschenaux, R .
HELVETICA CHIMICA ACTA, 1996, 79 (03) :736-741
[10]   Ferrocene-containing liquid-crystalline dendrimers: a novel family of mesomorphic macromolecules [J].
Deschenaux, R ;
Serrano, E ;
Levelut, AM .
CHEMICAL COMMUNICATIONS, 1997, (16) :1577-1578