Reversible conversion of electronic structures in a cyclic octacopper complex

Tatsuya Kawamoto; Masato Nishiwaki; Makiko Nishijima; Koichi Nozaki; Asako Igashira-Kamiyama; Takumi Konno

doi:10.1002/chem.200801614

Reversible conversion of electronic structures in a cyclic octacopper complex

Tatsuya Kawamoto^*, Masato Nishiwaki, Makiko Nishijima, Koichi Nozaki, Asako Igashira-Kamiyama, Takumi Konno

^*Corresponding author for this work

Department of Chemistry

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

12 Scopus citations

Abstract

A study was conducted to present a a cyclic sulfur-bridged octacopper complex that undergoes interconversion between its neutral, monocationic, and dicationic species. It was observed that the monocationic and dicationic species exhibit characteristic and intense absorption in the near-infrared (NIR) region, which is a significant property for applications involving telecommunications and optical data storage. It was demonstrated that the reaction of 2-(dimethylaminophenyl)benzothiazoline with copper(II) acetate monohydrate in a ratio 2:1 in 1,2-dichloroethane under a nitrogen atmosphere gave a black solution from which a dark brown powder ([1]-[CuCl₂]) was isolated by adding diethyl ether. It was also demonstrated that the dicationic and monocationic species possess radicals that are delocalized over the Cu₈S₈ core and show a intense absorption band in the NIR region.

Original language	English
Pages (from-to)	9842-9845
Number of pages	4
Journal	Chemistry - A European Journal
Volume	14
Issue number	32
DOIs	https://doi.org/10.1002/chem.200801614
State	Published - 2008/11/10

Keywords

Copper
Density functional calculations
Diradicals
Electronic structure
Sulfur

ASJC Scopus subject areas

Catalysis
Organic Chemistry

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10.1002/chem.200801614

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title = "Reversible conversion of electronic structures in a cyclic octacopper complex",

abstract = "A study was conducted to present a a cyclic sulfur-bridged octacopper complex that undergoes interconversion between its neutral, monocationic, and dicationic species. It was observed that the monocationic and dicationic species exhibit characteristic and intense absorption in the near-infrared (NIR) region, which is a significant property for applications involving telecommunications and optical data storage. It was demonstrated that the reaction of 2-(dimethylaminophenyl)benzothiazoline with copper(II) acetate monohydrate in a ratio 2:1 in 1,2-dichloroethane under a nitrogen atmosphere gave a black solution from which a dark brown powder ([1]-[CuCl2]) was isolated by adding diethyl ether. It was also demonstrated that the dicationic and monocationic species possess radicals that are delocalized over the Cu8S8 core and show a intense absorption band in the NIR region.",

keywords = "Copper, Density functional calculations, Diradicals, Electronic structure, Sulfur",

author = "Tatsuya Kawamoto and Masato Nishiwaki and Makiko Nishijima and Koichi Nozaki and Asako Igashira-Kamiyama and Takumi Konno",

year = "2008",

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doi = "10.1002/chem.200801614",

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journal = "Chemistry - A European Journal",

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T1 - Reversible conversion of electronic structures in a cyclic octacopper complex

AU - Kawamoto, Tatsuya

AU - Nishiwaki, Masato

AU - Nishijima, Makiko

AU - Nozaki, Koichi

AU - Igashira-Kamiyama, Asako

AU - Konno, Takumi

PY - 2008/11/10

Y1 - 2008/11/10

N2 - A study was conducted to present a a cyclic sulfur-bridged octacopper complex that undergoes interconversion between its neutral, monocationic, and dicationic species. It was observed that the monocationic and dicationic species exhibit characteristic and intense absorption in the near-infrared (NIR) region, which is a significant property for applications involving telecommunications and optical data storage. It was demonstrated that the reaction of 2-(dimethylaminophenyl)benzothiazoline with copper(II) acetate monohydrate in a ratio 2:1 in 1,2-dichloroethane under a nitrogen atmosphere gave a black solution from which a dark brown powder ([1]-[CuCl2]) was isolated by adding diethyl ether. It was also demonstrated that the dicationic and monocationic species possess radicals that are delocalized over the Cu8S8 core and show a intense absorption band in the NIR region.

AB - A study was conducted to present a a cyclic sulfur-bridged octacopper complex that undergoes interconversion between its neutral, monocationic, and dicationic species. It was observed that the monocationic and dicationic species exhibit characteristic and intense absorption in the near-infrared (NIR) region, which is a significant property for applications involving telecommunications and optical data storage. It was demonstrated that the reaction of 2-(dimethylaminophenyl)benzothiazoline with copper(II) acetate monohydrate in a ratio 2:1 in 1,2-dichloroethane under a nitrogen atmosphere gave a black solution from which a dark brown powder ([1]-[CuCl2]) was isolated by adding diethyl ether. It was also demonstrated that the dicationic and monocationic species possess radicals that are delocalized over the Cu8S8 core and show a intense absorption band in the NIR region.

KW - Copper

KW - Density functional calculations

KW - Diradicals

KW - Electronic structure

KW - Sulfur

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U2 - 10.1002/chem.200801614

DO - 10.1002/chem.200801614

M3 - 学術論文

AN - SCOPUS:55449087478

SN - 0947-6539

VL - 14

SP - 9842

EP - 9845

JO - Chemistry - A European Journal

JF - Chemistry - A European Journal

IS - 32

ER -

Reversible conversion of electronic structures in a cyclic octacopper complex

Abstract

Keywords

ASJC Scopus subject areas

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