Published March 2017 | Version v1
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Study on the charge transfer phase transition and magnetism of mixed-valence iron complexes from the viewpoint of Moessbauer spectroscopy

Creators

  • 1. Toyota Physical and Chemical Research Institute, Nagakute, Aichi (Japan)
  • 2. Tokyo University, Institute for Solid State Physics, Kashiwa, Chiba (Japan)
  • 3. Tokyo University, Graduate School of Arts and Sciences, Tokyo (Japan)
  • 4. Tokyo University of Science, Faculty of Science, Tokyo (Japan)
  • 5. University of Electro-Communications, Division of General Education, Chofu, Tokyo (Japan)

Description

The authors chose (SP-R)[FeIIFeIII(dto)3] (SP=spiropyran, R=Me,Et,Pr, dto=C2O2S2) as a subject, and studied the effects of photo-isomerization of spiropyran molecule (SP-R) intercalated between layers on charge transfer phase transition and ferromagnetic transition of [FeIIFeIII(dto)3] using Moessbauer spectroscopy and magnetometry. The authors clarified that when the photo-responsive organic-inorganic composite complex (SP-Me)[FeIIFeIII(dto)3] is irradiated with ultraviolet rays, charge transfer phase transition occurs in [FeIIFeIII(dto)3] layer with the photo-isomerization of SP-Me as a mediator. In addition, it was clarified that the ferromagnetic transition and charge transfer phase transition in (SP-R)[FeIIFeIII(dto)3] depends greatly on the substituent R of SP and also significantly on a solvent during synthesis. (A.O.)

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Part of:
Proceedings of the specialists' meeting on 'nuclear spectroscopy and condensed matter physics using short-lived nuclei'

Additional details

Additional titles

Original title (Japanese)
メスバウアー分光から見た鉄混合原子価錯体の電荷移動相転移と磁性

Identifiers

URL
https://www.rri.kyoto-u.ac.jp/PUB/report/04_kr/img/ekr018.pdf;

Publishing Information

Imprint Title
Proceedings of the specialists' meeting on 'nuclear spectroscopy and condensed matter physics using short-lived nuclei'
Imprint Pagination
[97 p.]
Journal Page Range
p. 7-15
Report number
KURRI-EKR--18

Conference

Title
Specialists' meeting on nuclear spectroscopy and condensed matter physics using short-lived nuclei
Dates
20-21 Dec 2016
Place
Kumatori, Osaka (Japan)

INIS

Country of Publication
Japan
Country of Input or Organization
Japan
INIS RN
49089657
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Resource subtype / Literary indicator
Conference
Descriptors DEI
ABSORPTION SPECTRA; CLATHRATES; ELECTRON TRANSFER; FERROMAGNETISM; HETEROCYCLIC OXYGEN COMPOUNDS; ION PAIRS; IRON COMPLEXES; IRON IONS; ISOMERIZATION; MAGNETIZATION; MOESSBAUER EFFECT; PHASE TRANSFORMATIONS; PHOTOCHEMICAL REACTIONS; ULTRAVIOLET RADIATION; VALENCE
Descriptors DEC
CHARGED PARTICLES; CHEMICAL REACTIONS; COMPLEXES; ELECTROMAGNETIC RADIATION; HETEROCYCLIC COMPOUNDS; IONS; MAGNETISM; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; RADIATIONS; SPECTRA; TRANSITION ELEMENT COMPLEXES

Optional Information

Notes
9 refs., 8 figs. Imprint:#5E73##6210#28#5E74##5EA6##300C##77ED##5BFF##547D#RI#3092##7528##3044##305F##6838##5206##5149##3068##6838##7269##6027##7814##7A76#III#300D#