Structure-distortion-induced photomagnetic effect in azobenzene/ polyoxometalate Langmuir-Blodgett films

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We have prepared photomagnetic Langmuir-Blodgett films composed of an amphiphilic azobenzene and a magnetic polyoxometalate. The obtained film possesses a well-organized layered structure where polyoxometalate anions are sandwiched by azobenzene cations in a single-layered manner. Reversible photoisomerization of azobenzene was achieved even at low temperature, accompanying intensity changes in the d-d transition of polyoxometalate anions. The photomagnetic effect was observed reversibly upon alternate UV and visible light irradiation. Based on polarized spectroscopy, the observed photomagnetic effect is ascribed to the structure-distortion of polyoxometalate layers.

Original languageEnglish
Pages (from-to)16014-16020
Number of pages7
JournalDalton Transactions
Volume42
Issue number45
DOIs
Publication statusPublished - 2013 Dec 7

Fingerprint

Langmuir Blodgett films
Anions
Photoisomerization
Cations
Irradiation
Spectroscopy
azobenzene
polyoxometalate I
Temperature

ASJC Scopus subject areas

  • Inorganic Chemistry

Cite this

Structure-distortion-induced photomagnetic effect in azobenzene/ polyoxometalate Langmuir-Blodgett films. / Yamamoto, Takashi; Umemura, Yasushi; Einaga, Yasuaki.

In: Dalton Transactions, Vol. 42, No. 45, 07.12.2013, p. 16014-16020.

Research output: Contribution to journalArticle

@article{953125eb7c1b42f6a655705d2b1b9791,
title = "Structure-distortion-induced photomagnetic effect in azobenzene/ polyoxometalate Langmuir-Blodgett films",
abstract = "We have prepared photomagnetic Langmuir-Blodgett films composed of an amphiphilic azobenzene and a magnetic polyoxometalate. The obtained film possesses a well-organized layered structure where polyoxometalate anions are sandwiched by azobenzene cations in a single-layered manner. Reversible photoisomerization of azobenzene was achieved even at low temperature, accompanying intensity changes in the d-d transition of polyoxometalate anions. The photomagnetic effect was observed reversibly upon alternate UV and visible light irradiation. Based on polarized spectroscopy, the observed photomagnetic effect is ascribed to the structure-distortion of polyoxometalate layers.",
author = "Takashi Yamamoto and Yasushi Umemura and Yasuaki Einaga",
year = "2013",
month = "12",
day = "7",
doi = "10.1039/c3dt51402a",
language = "English",
volume = "42",
pages = "16014--16020",
journal = "Dalton Transactions",
issn = "1477-9226",
publisher = "Royal Society of Chemistry",
number = "45",

}

TY - JOUR

T1 - Structure-distortion-induced photomagnetic effect in azobenzene/ polyoxometalate Langmuir-Blodgett films

AU - Yamamoto, Takashi

AU - Umemura, Yasushi

AU - Einaga, Yasuaki

PY - 2013/12/7

Y1 - 2013/12/7

N2 - We have prepared photomagnetic Langmuir-Blodgett films composed of an amphiphilic azobenzene and a magnetic polyoxometalate. The obtained film possesses a well-organized layered structure where polyoxometalate anions are sandwiched by azobenzene cations in a single-layered manner. Reversible photoisomerization of azobenzene was achieved even at low temperature, accompanying intensity changes in the d-d transition of polyoxometalate anions. The photomagnetic effect was observed reversibly upon alternate UV and visible light irradiation. Based on polarized spectroscopy, the observed photomagnetic effect is ascribed to the structure-distortion of polyoxometalate layers.

AB - We have prepared photomagnetic Langmuir-Blodgett films composed of an amphiphilic azobenzene and a magnetic polyoxometalate. The obtained film possesses a well-organized layered structure where polyoxometalate anions are sandwiched by azobenzene cations in a single-layered manner. Reversible photoisomerization of azobenzene was achieved even at low temperature, accompanying intensity changes in the d-d transition of polyoxometalate anions. The photomagnetic effect was observed reversibly upon alternate UV and visible light irradiation. Based on polarized spectroscopy, the observed photomagnetic effect is ascribed to the structure-distortion of polyoxometalate layers.

UR - http://www.scopus.com/inward/record.url?scp=84886813987&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84886813987&partnerID=8YFLogxK

U2 - 10.1039/c3dt51402a

DO - 10.1039/c3dt51402a

M3 - Article

C2 - 23900498

AN - SCOPUS:84886813987

VL - 42

SP - 16014

EP - 16020

JO - Dalton Transactions

JF - Dalton Transactions

SN - 1477-9226

IS - 45

ER -