1995 Fiscal Year Final Research Report Summary
Preparation of new inorganic superlattices by two-dimensional ordering of metal orbitals
| Project/Area Number |
06555187
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| Research Category |
Grant-in-Aid for Developmental Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Inorganic materials/Physical properties
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| Research Institution | KYUSHU UNIVERSITY |
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Principal Investigator |
KUNITAKE Toyoki Faculty of Engineering, Kyushu University Professor, 工学部, 教授 (40037734)
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| Co-Investigator(Kenkyū-buntansha) |
ISAYAMA Munetoshi Fukuoka Industrial Technology Center Chief Researcher, 主任技師
ICHINOSE Izumi Faculty of Engineering, Kyushu University Research Associate, 工学部, 助手 (50243910)
KIMIZUKA Nobuo Faculty of Engineering, Kyushu University Associate Professor, 工学部, 助教授 (90186304)
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| Project Period (FY) |
1994 – 1995
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| Keywords | Photo-induced growth / Cast film / ESR spectroscopy / Cyano-bridged clusters |
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| Research Abstract |
The present study aimed at precise structural control of various inorganic clusters by using cast films of bilayr membranes of synthetic amphiphiles. Major accomplishments are as follows.
1) A new bilayr with dicationic viologen head group was synthesized to enhance the density of inorganic guest molecules incorporated into the interlayr.
2) Ni (CN)_4, Au (CN)_4, Pt (CN)_4, MoS_4, were introduced into the layr by ion exchange, and then Cu (II) ion was introduced by immersion. Infrared spectroscopy indicated the formation of cyano-bridged clusters in the case of Ni-Cu and Pt-Cu films. ESR spectroscopy of these two films display remarkable anisotropies which suggest that a Cu (II) d orbital is placed parallel to the film layr with regular spin ordering similar to that of crystals.
3) The MoS_4/Cu (II) complex that was prepared by sequential synthesis on the cast film template does not give ESR signals of Cu (II) itself in consistence with the presumed structure. Therefore, cluster formation that accompany redox reaction of the precursor ion is achieved.
4) Photo-induced growth of a Fe (II) -Fe (III) mixed valence complex was found by using the monolayr template at the air-water interface.
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