PHASE-TRANSITIONS OF LONG-CHAIN ESTERS OF MESO-TETRAKIS(PARA-CARBOXYPHENYL)PORPHYRIN

Authors
RAMASSEUL R MALDIVI P MARCHON JC TAYLOR M GUILLON D
Citation
R. Ramasseul et al., PHASE-TRANSITIONS OF LONG-CHAIN ESTERS OF MESO-TETRAKIS(PARA-CARBOXYPHENYL)PORPHYRIN, Liquid crystals, 13(5), 1993, pp. 729-733
Citations number
16
Categorie Soggetti
Crystallography
Journal title
Liquid crystals → ACNP
ISSN journal
02678292
Volume
13
Issue
5
Year of publication
1993
Pages
729 - 733
Database
ISI
SICI code
0267-8292(1993)13:5<729:POLEOM>2.0.ZU;2-I
Abstract
Several long chain esters of meso-tetrakis(para-carboxyphenyl)porphyri n, and two of their metal complexes (Cu, Zn) have been prepared and ch aracterized. Each of them exhibits at least one thermotropic phase tra nsition below the clearing point to the isotropic liquid, but no defin itive evidence of liquid crystallinity has been found by differential scanning calorimetry, optical microscopy, or X-ray diffraction.