Searching for photochromic liquid crystals spironaphthoxazine substituted with a mesogenic group

Leah Shragina; Frida Buchholtz; Shlomo Yitzchaik; Valeri Krongauz

doi:10.1080/02678299008036748

Searching for photochromic liquid crystals spironaphthoxazine substituted with a mesogenic group

Leah Shragina
, Frida Buchholtz
, Shlomo Yitzchaik
, Valeri Krongauz^*

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

55 Scopus citations

Abstract

A number of photochromic spiropyrans and spirooxazines containing mesogenic groups were synthesized. Only one of them, spiro-indoline-naphthoxazine with mesogenic substituent, 4-(4-heptylbenzoyloxy)benzoyloxy in 5-position, revealed mesomorphic properties. Its phase behaviour, photochromism and alignment in the electric field was investigated. A structure of the mesophase is discussed.

Original language	English
Pages (from-to)	643-655
Number of pages	13
Journal	Liquid Crystals
Volume	7
Issue number	5
DOIs	https://doi.org/10.1080/02678299008036748
State	Published - May 1990
Externally published	Yes

Bibliographical note

Funding Information:
We thank Dr. Judith Ratner for assistance with spectral measurements and Prof. Ernst Fischer for stimulating discussions. Support from the German-Israeli Foundation for Scientific Research and Development is gratefully acknowledged.

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title = "Searching for photochromic liquid crystals spironaphthoxazine substituted with a mesogenic group",

abstract = "A number of photochromic spiropyrans and spirooxazines containing mesogenic groups were synthesized. Only one of them, spiro-indoline-naphthoxazine with mesogenic substituent, 4-(4-heptylbenzoyloxy)benzoyloxy in 5-position, revealed mesomorphic properties. Its phase behaviour, photochromism and alignment in the electric field was investigated. A structure of the mesophase is discussed.",

author = "Leah Shragina and Frida Buchholtz and Shlomo Yitzchaik and Valeri Krongauz",

note = "Funding Information: We thank Dr. Judith Ratner for assistance with spectral measurements and Prof. Ernst Fischer for stimulating discussions. Support from the German-Israeli Foundation for Scientific Research and Development is gratefully acknowledged.",

year = "1990",

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AU - Shragina, Leah

AU - Buchholtz, Frida

AU - Yitzchaik, Shlomo

AU - Krongauz, Valeri

N1 - Funding Information: We thank Dr. Judith Ratner for assistance with spectral measurements and Prof. Ernst Fischer for stimulating discussions. Support from the German-Israeli Foundation for Scientific Research and Development is gratefully acknowledged.

PY - 1990/5

Y1 - 1990/5

N2 - A number of photochromic spiropyrans and spirooxazines containing mesogenic groups were synthesized. Only one of them, spiro-indoline-naphthoxazine with mesogenic substituent, 4-(4-heptylbenzoyloxy)benzoyloxy in 5-position, revealed mesomorphic properties. Its phase behaviour, photochromism and alignment in the electric field was investigated. A structure of the mesophase is discussed.

AB - A number of photochromic spiropyrans and spirooxazines containing mesogenic groups were synthesized. Only one of them, spiro-indoline-naphthoxazine with mesogenic substituent, 4-(4-heptylbenzoyloxy)benzoyloxy in 5-position, revealed mesomorphic properties. Its phase behaviour, photochromism and alignment in the electric field was investigated. A structure of the mesophase is discussed.

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Searching for photochromic liquid crystals spironaphthoxazine substituted with a mesogenic group

Abstract

Bibliographical note

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