Photomechanical and photochromic behavior of a molecule containing multiple photoactive groups

Manas K. Panda; Nada ElAzhary; Mouza A. Alzaabi; Brandon M. Wahba; Jolly Jacob; Panče Naumov

doi:10.5562/cca2492

Photomechanical and photochromic behavior of a molecule containing multiple photoactive groups

Manas K. Panda, Nada ElAzhary, Mouza A. Alzaabi, Brandon M. Wahba, Jolly Jacob, Panče Naumov

Chemistry

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

Abstract

Photomechanical and photochromic activities are reported for single crystals of a new multire-sponsive material, 2,4-di-tert-butyl-6-((E)-((4-((E)-phenyldiazenyl)phenyl)imino)methyl)phenol (Azim-1), with two photoactive groups that can undergo photoisomerization (azo and imine), and an orthohydroxy group that is capable of proton transfer. Upon irradiation with UV light, platy and needle-shaped crystals of Azim-1 rapidly bend towards the light source and return to their initial shape as soon as the irradiation is terminated. Upon prolonged exposure to UV light, the crystals change their color from yellow to red. The crystal structure of non-irradiated Azim-1 is reported, and the mechanisms of the photomechanical and photochromic responses are discussed.

Original language	English (US)
Pages (from-to)	475-479
Number of pages	5
Journal	Croatica Chemica Acta
Volume	87
Issue number	4
DOIs	https://doi.org/10.5562/cca2492
State	Published - Dec 1 2014

Keywords

Photochromism
Photomechanical effects
Proton transfer
Schiff base
Tautomerism

ASJC Scopus subject areas

General Chemistry

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10.5562/cca2492

Cite this

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title = "Photomechanical and photochromic behavior of a molecule containing multiple photoactive groups",

abstract = "Photomechanical and photochromic activities are reported for single crystals of a new multire-sponsive material, 2,4-di-tert-butyl-6-((E)-((4-((E)-phenyldiazenyl)phenyl)imino)methyl)phenol (Azim-1), with two photoactive groups that can undergo photoisomerization (azo and imine), and an orthohydroxy group that is capable of proton transfer. Upon irradiation with UV light, platy and needle-shaped crystals of Azim-1 rapidly bend towards the light source and return to their initial shape as soon as the irradiation is terminated. Upon prolonged exposure to UV light, the crystals change their color from yellow to red. The crystal structure of non-irradiated Azim-1 is reported, and the mechanisms of the photomechanical and photochromic responses are discussed.",

keywords = "Photochromism, Photomechanical effects, Proton transfer, Schiff base, Tautomerism",

author = "Panda, {Manas K.} and Nada ElAzhary and Alzaabi, {Mouza A.} and Wahba, {Brandon M.} and Jolly Jacob and Pan{\v c}e Naumov",

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doi = "10.5562/cca2492",

language = "English (US)",

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T1 - Photomechanical and photochromic behavior of a molecule containing multiple photoactive groups

AU - Panda, Manas K.

AU - ElAzhary, Nada

AU - Alzaabi, Mouza A.

AU - Wahba, Brandon M.

AU - Jacob, Jolly

AU - Naumov, Panče

PY - 2014/12/1

Y1 - 2014/12/1

N2 - Photomechanical and photochromic activities are reported for single crystals of a new multire-sponsive material, 2,4-di-tert-butyl-6-((E)-((4-((E)-phenyldiazenyl)phenyl)imino)methyl)phenol (Azim-1), with two photoactive groups that can undergo photoisomerization (azo and imine), and an orthohydroxy group that is capable of proton transfer. Upon irradiation with UV light, platy and needle-shaped crystals of Azim-1 rapidly bend towards the light source and return to their initial shape as soon as the irradiation is terminated. Upon prolonged exposure to UV light, the crystals change their color from yellow to red. The crystal structure of non-irradiated Azim-1 is reported, and the mechanisms of the photomechanical and photochromic responses are discussed.

AB - Photomechanical and photochromic activities are reported for single crystals of a new multire-sponsive material, 2,4-di-tert-butyl-6-((E)-((4-((E)-phenyldiazenyl)phenyl)imino)methyl)phenol (Azim-1), with two photoactive groups that can undergo photoisomerization (azo and imine), and an orthohydroxy group that is capable of proton transfer. Upon irradiation with UV light, platy and needle-shaped crystals of Azim-1 rapidly bend towards the light source and return to their initial shape as soon as the irradiation is terminated. Upon prolonged exposure to UV light, the crystals change their color from yellow to red. The crystal structure of non-irradiated Azim-1 is reported, and the mechanisms of the photomechanical and photochromic responses are discussed.

KW - Photochromism

KW - Photomechanical effects

KW - Proton transfer

KW - Schiff base

KW - Tautomerism

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DO - 10.5562/cca2492

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JO - Croatica Chemica Acta

JF - Croatica Chemica Acta

IS - 4

ER -

Photomechanical and photochromic behavior of a molecule containing multiple photoactive groups

Abstract

Keywords

ASJC Scopus subject areas

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