New twin-type troponoid liquid crystals with a smectic C phase

被引：9

作者：

Mori, A ^{[1
]}

Takemoto, M

Vill, V

机构：

[1] Kyushu Univ 86, Inst Adv Mat Study, Kasuga, Fukuoka 816, Japan

[2] Kyushu Univ 39, Grad Sch Engn Sci, Kasuga, Fukuoka 816, Japan

[3] Univ Hamburg, Inst Organ Chem, D-20146 Hamburg, Germany

来源：

CHEMISTRY LETTERS | 1998年 / 07期

关键词：

D O I：

10.1246/cl.1998.617

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Twin-type troponoid liquid crystals show a monotropic smectic C phase while the corresponding benzenoids are nonmesogenic. The corresponding troponoid monomers, show a monotropic smectic A phase, could form a head-to-tail alignment. In the twins, molecules have to shift to form a head-to-tail alignment since the dipole moment of the two tropolone parts directs oppositely.

引用

页码：617 / 618

页数：2

共 12 条

[1] Symmetric and non-symmetric liquid crystal dimers with branched terminal alkyl chains: Racemic and chiral [J].

Blatch, AE ;

Fletcher, ID ;

Luckhurst, GR .

JOURNAL OF MATERIALS CHEMISTRY, 1997, 7 (01) :9-17

[2]

DATA RW, 1992, LIQ CRYST, V12, P203

[3] THE 1ST SYNTHESIS OF THE ROD-TYPE MONOCYCLIC LIQUID-CRYSTALS WITH 2-ACYLOXYTROPONE STRUCTURE [J].

KIDA, K ;

MORI, A ;

TAKESHITA, H .

MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1991, 199 :387-391

[4] CRUCIAL ROLE OF THE TROPONE C=O GROUP IN PREFERENTIAL EXHIBITION OF SMECTIC C-PHASE THROUGH INTERMOLECULAR HYDROGEN-BONDING [J].

MORI, A ;

NIMURA, R ;

ISOBE, M ;

TAKESHITA, H .

CHEMISTRY LETTERS, 1992, (05) :859-862

[5] SYNTHESIS AND MESOGENIC PROPERTIES OF NEW NON-SIGMATROPIC, MONOCYCLIC TROPONOIDS, 5-ACYLOXY-2-ALKOXYTROPONES [J].

MORI, A ;

TAKEMATSU, S ;

ISOBE, M ;

TAKESHITA, H .

CHEMISTRY LETTERS, 1995, (01) :15-16

[6] ASSISTANCE OF THE INTERMOLECULAR HYDROGEN-BONDING ON THE APPEARANCE OF THE SMECTIC C PHASE IN 2-(4-ALKOXYBENZOYLOXY)-5-ALKYLAMINOTROPONE LIQUID-CRYSTALS [J].

MORI, A ;

NIMURA, R ;

TAKESHITA, H .

CHEMISTRY LETTERS, 1991, (01) :77-80

[7] PREPARATION OF NEW LIQUID-CRYSTALS WITH A BENZOYLOXYTROPONE CORE [J].

MORI, A ;

UCHIDA, M ;

TAKESHITA, H .

CHEMISTRY LETTERS, 1989, (04) :591-592

[8] PREPARATION AND THERMAL-PROPERTIES OF NEW LIQUID-CRYSTALS WITH A 2-BENZOYLOXY-2,4,6-CYCLOHEPTATRIEN-1-ONE CORE [J].

MORI, A ;

KATO, N ;

TAKESHITA, H ;

UCHIDA, M ;

TAYA, H ;

NIMURA, R .

JOURNAL OF MATERIALS CHEMISTRY, 1991, 1 (05) :799-803

[9] SYNTHESIS OF 2-(ALKANOYLOXY)-5-ALKOXYTROPONES - NOVEL MONOCYCLIC ROD-TYPE LIQUID-CRYSTALS [J].

MORI, A ;

TAKESHITA, H ;

KIDA, K ;

UCHIDA, M .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1990, 112 (23) :8635-8636

[10] THE KINETIC EVIDENCE OF THE CONCERTED [1,9] SIGMATROPY FOR THE ACETYL MIGRATION IN THE 2-ACETOXYTROPONES - THE NMR SPECTRAL-ANALYSIS OF THE 7-FOLD DEGENERATED ACETOTROPY OF HEXAACETOXYTROPONE [J].

TAKESHITA, H ;

MORI, A ;

WATANABE, H ;

KUSABA, T ;

SUGIYAMA, S ;

KODAMA, M .

BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 1987, 60 (12) :4335-4338

← 1 2 →