Structural characterization and physical properties of new tetrabenzopentaphene mesogens

被引：11

作者：

Romero, Carmen ^{[1
]}

Pena, Diego ^{[1
]}

Perez, Dolores ^{[1
]}

Guitian, Enrique ^{[1
]}

Termine, Roberto ^{[2
]}

Golemme, Attilio ^{[2
]}

Omenat, Ana ^{[3
]}

Barbera, Joaquin ^{[3
]}

Luis Serrano, Jose ^{[3
]}

机构：

[1] Univ Santiago de Compostela, Dept Quim Organ, Fac Quim, Santiago De Compostela 15782, Spain

[2] Univ Calabria, Lab Licryl INFM CNR, Dipartimento Chim, Ctr Eccelenza CEMIF CAL,INSTM UdR Calabria, I-87036 Arcavacata Di Rende, Italy

[3] Univ Zaragoza, Dept Quim Organ, Inst Ciencia Mat Aragon, CSIC, E-50009 Zaragoza, Spain

来源：

JOURNAL OF MATERIALS CHEMISTRY | 2009年 / 19卷 / 27期

关键词：

DISCOTIC LIQUID-CRYSTALS; FIELD-EFFECT TRANSISTORS; CHARGE-CARRIER MOBILITY; TRANSIENT PHOTOCONDUCTIVITY; EXTENDED TRIPHENYLENES; SPACE-CHARGE; EFFICIENCY; TRANSPORT; DERIVATIVES; MESOPHASES;

D O I：

10.1039/b901260e

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The synthesis, structural and mesomorphic properties of five tetrabenzopentaphene derivatives are presented. All the compounds exhibit columnar mesophases which have been characterized by optical microscopy, differential scanning calorimetry and X-ray diffraction. The thermogravimetric analysis of the ester derivatives reveals that they suffer a decomposition process to the anhydride derivative at temperatures above 200 degrees C. The influence of the length of the terminal alkyl chains on the mesomorphic behaviour of the compounds has been studied. The structural characterization of the compounds has been completed with the study of their aggregation in solution by means of NMR. The fluorescent properties of the compounds are reported as well as a preliminary study of the photoconductivity of one of them.

引用

页码：4725 / 4731

页数：7

共 52 条

[21] Exciton coupling and dipolar correlations in a columnar liquid crystal: Photophysics of a bent-rod hexacatenar mesogen [J].

Levitsky, IA ;

Kishikawa, K ;

Eichhorn, SH ;

Swager, TM .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 2000, 122 (11) :2474-2479

[22] Synthetic strategies towards macrodiscotic materials. Can a new dimension be added to liquid crystal polymers? [J].

Msayib, K ;

Makhseed, S ;

McKeown, NB .

JOURNAL OF MATERIALS CHEMISTRY, 2001, 11 (11) :2784-2789

[23] Macromolecular and supramolecular architectures for molecular electronics [J].

Müllen, K ;

Rabe, JP .

MOLECULAR ELECTRONICS: SCIENCE AND TECHNOLOGY, 1998, 852 :205-218

[24] Liquid crystalline perylene-3,4-dicarboximide derivatives with high thermal and photochemical stability [J].

Muller, GRJ ;

Meiners, C ;

Enkelmann, V ;

Geerts, Y ;

Mullen, K .

JOURNAL OF MATERIALS CHEMISTRY, 1998, 8 (01) :61-64

[25] Solar energy - Solar cells by self-assembly? [J].

Nelson, J .

SCIENCE, 2001, 293 (5532) :1059-1060

[26] New organic discotic materials for photovoltaic conversion [J].

Oukachmih, M ;

Destruel, P ;

Seguy, I ;

Ablart, G ;

Jolinat, P ;

Archambeau, S ;

Mabiala, M ;

Fouet, S ;

Bock, H .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2005, 85 (04) :535-543

[27] H-bond-stabilized triphenylene-based columnar discotic liquid crystals [J].

Paraschiv, I ;

Giesbers, M ;

van Lagen, B ;

Grozema, FC ;

Abellon, RD ;

Siebbeles, LDA ;

Marcelis, ATM ;

Zuilhof, H ;

Sudhölter, EJR .

CHEMISTRY OF MATERIALS, 2006, 18 (04) :968-974

[28] Current-voltage characteristics of a tetracene crystal: Space charge or injection limited conductivity? [J].

Reynaert, J ;

Arkhipov, VI ;

Borghs, G ;

Heremans, P .

APPLIED PHYSICS LETTERS, 2004, 85 (04) :603-605

[29] Synthesis of extended triphenylenes by palladium-catalyzed [2+2+2] cycloaddition of triphenylynes [J].

Romero, Carmen ;

Pena, Diego ;

Perez, Dolores ;

Guitian, Enrique .

CHEMISTRY-A EUROPEAN JOURNAL, 2006, 12 (22) :5677-5684

[30] SPACE-CHARGE-LIMITED CURRENTS IN SOLIDS [J].

ROSE, A .

PHYSICAL REVIEW, 1955, 97 (06) :1538-1544

← 1 2 3 4 5 6 →