SYNTHESIS AND CHARACTERIZATION OF SOME NOVEL PHTHALOCYANINES CONTAINING BOTH OLIGO(ETHYLENEOXY) AND ALKYL OR ALKOXY SIDE-CHAINS - NOVEL UNSYMMETRICAL DISCOTIC MESOGENS

Citation
Gj. Clarkson et al., SYNTHESIS AND CHARACTERIZATION OF SOME NOVEL PHTHALOCYANINES CONTAINING BOTH OLIGO(ETHYLENEOXY) AND ALKYL OR ALKOXY SIDE-CHAINS - NOVEL UNSYMMETRICAL DISCOTIC MESOGENS, Journal of the Chemical Society. Perkin transactions. I, (14), 1995, pp. 1817-1823
Citations number
26
Categorie Soggetti
Chemistry Inorganic & Nuclear
ISSN journal
0300922X
Issue
14
Year of publication
1995
Pages
1817 - 1823
Database
ISI
SICI code
0300-922X(1995):14<1817:SACOSN>2.0.ZU;2-V
Abstract
The synthesis of unsymmetrical, peripherally octa-substituted phthaloc yanines which contain a combination of 1,4,7,10-tetraoxaundecyl and he xadecyl or dodecyloxy side-chains is described. These compounds were p repared by mixed phthalonitrile cyclotetramisations or by the self-con densation of an unsymmetrical phthalonitrile containing both dodecylox y and 1,4,7,10-tetraoxaundecyl groups. Separation of phthalocyanine pr oducts was achieved by simple column chromatography. A number of isome ric phthalocyanines, separated as single compounds, are reported. All of the phthalocyanines possess thermotropic columnar liquid crystallin ity and a brief summary of their mesogenic properties is given.