Copper-Azide-Thioarylazoimidazoles - Structure, Spectra, Redox Properties, Magnetism and Theoretical Interpretation

Prasenjit Bhunia; Debasis Banerjee; Papia Datta; Pallepogu Raghavaiah; Alexandra M. Z. Slawin; John D. Woollins; Joan Ribas; Chittaranjan Sinha

doi:10.1002/ejic.200900648

Copper-Azide-Thioarylazoimidazoles - Structure, Spectra, Redox Properties, Magnetism and Theoretical Interpretation

Prasenjit Bhunia, Debasis Banerjee, Papia Datta, Pallepogu Raghavaiah, Alexandra M. Z. Slawin, John D. Woollins, Joan Ribas, Chittaranjan Sinha

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

Abstract

Azido-copper(II) and -copper(I) complexes of 1-alkyl-2-[(o-thioalkyl)phenylazo]imidazole (SRaaiNR') have been prepared and studied. Complex 2 [Cu(SRaaiNR')(mu(1,1)-N-3)(N-3)](2) dimerises via end-to-end (mu(1,3))-N-3 to form a tetrameric structure. Azido-copper(I) complexes of the ligands are obtained MeOH-bridged dimers, [Cu(SRaaiNR')(N-3)(mu-OHMe)](2) (3). The electronic spectra Suggest that a small reorganisation energy (0.08 eV) is associated with the change in electronic configuration, structure and oxidation state from Cu-II to Cu-I. Redox interconversion, Cu-II <-> Cu-I, [Cu(SMeaaiNMe)(mu-N-3)-(N-3)](2) (2a) <-> [Cu(SMeaaiNMe)(N-3)(mu-OHCH3)](2) (3a), has been performed in one case. The tetranuclear complex shows ferromagnetic and antiferromagnetic interactions. The spectra, redox chemistry and magnetism are explained by DFT studies.

Original language	English
Pages (from-to)	311-321
Number of pages	11
Journal	European Journal of Inorganic Chemistry
Issue number	2
DOIs	https://doi.org/10.1002/ejic.200900648
Publication status	Published - Jan 2010

Keywords

Copper
Bridging ligands
Structure elucidation
Magnetic properties
Redox chemistry
TRANSITION-METAL-COMPLEXES
ELECTRON-TRANSFER KINETICS
CRYSTAL-STRUCTURE
CONTAINING LIGANDS
SULFUR-LIGATION
THIOETHER
COORDINATION
POTENTIALS
REDUCTION
SYSTEMS

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10.1002/ejic.200900648

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@article{51b75dc6bb9f40feb8b957739f09c38d,

title = "Copper-Azide-Thioarylazoimidazoles - Structure, Spectra, Redox Properties, Magnetism and Theoretical Interpretation",

abstract = "Azido-copper(II) and -copper(I) complexes of 1-alkyl-2-[(o-thioalkyl)phenylazo]imidazole (SRaaiNR') have been prepared and studied. Complex 2 [Cu(SRaaiNR')(mu(1,1)-N-3)(N-3)](2) dimerises via end-to-end (mu(1,3))-N-3 to form a tetrameric structure. Azido-copper(I) complexes of the ligands are obtained MeOH-bridged dimers, [Cu(SRaaiNR')(N-3)(mu-OHMe)](2) (3). The electronic spectra Suggest that a small reorganisation energy (0.08 eV) is associated with the change in electronic configuration, structure and oxidation state from Cu-II to Cu-I. Redox interconversion, Cu-II <-> Cu-I, [Cu(SMeaaiNMe)(mu-N-3)-(N-3)](2) (2a) <-> [Cu(SMeaaiNMe)(N-3)(mu-OHCH3)](2) (3a), has been performed in one case. The tetranuclear complex shows ferromagnetic and antiferromagnetic interactions. The spectra, redox chemistry and magnetism are explained by DFT studies.",

keywords = "Copper, Bridging ligands, Structure elucidation, Magnetic properties, Redox chemistry, TRANSITION-METAL-COMPLEXES, ELECTRON-TRANSFER KINETICS, CRYSTAL-STRUCTURE, CONTAINING LIGANDS, SULFUR-LIGATION, THIOETHER, COORDINATION, POTENTIALS, REDUCTION, SYSTEMS",

author = "Prasenjit Bhunia and Debasis Banerjee and Papia Datta and Pallepogu Raghavaiah and Slawin, {Alexandra M. Z.} and Woollins, {John D.} and Joan Ribas and Chittaranjan Sinha",

year = "2010",

month = jan,

doi = "10.1002/ejic.200900648",

language = "English",

pages = "311--321",

journal = "European Journal of Inorganic Chemistry",

issn = "1434-1948",

publisher = "Wiley-Blackwell",

number = "2",

}

TY - JOUR

T1 - Copper-Azide-Thioarylazoimidazoles - Structure, Spectra, Redox Properties, Magnetism and Theoretical Interpretation

AU - Bhunia, Prasenjit

AU - Banerjee, Debasis

AU - Datta, Papia

AU - Raghavaiah, Pallepogu

AU - Slawin, Alexandra M. Z.

AU - Woollins, John D.

AU - Ribas, Joan

AU - Sinha, Chittaranjan

PY - 2010/1

Y1 - 2010/1

N2 - Azido-copper(II) and -copper(I) complexes of 1-alkyl-2-[(o-thioalkyl)phenylazo]imidazole (SRaaiNR') have been prepared and studied. Complex 2 [Cu(SRaaiNR')(mu(1,1)-N-3)(N-3)](2) dimerises via end-to-end (mu(1,3))-N-3 to form a tetrameric structure. Azido-copper(I) complexes of the ligands are obtained MeOH-bridged dimers, [Cu(SRaaiNR')(N-3)(mu-OHMe)](2) (3). The electronic spectra Suggest that a small reorganisation energy (0.08 eV) is associated with the change in electronic configuration, structure and oxidation state from Cu-II to Cu-I. Redox interconversion, Cu-II <-> Cu-I, [Cu(SMeaaiNMe)(mu-N-3)-(N-3)](2) (2a) <-> [Cu(SMeaaiNMe)(N-3)(mu-OHCH3)](2) (3a), has been performed in one case. The tetranuclear complex shows ferromagnetic and antiferromagnetic interactions. The spectra, redox chemistry and magnetism are explained by DFT studies.

AB - Azido-copper(II) and -copper(I) complexes of 1-alkyl-2-[(o-thioalkyl)phenylazo]imidazole (SRaaiNR') have been prepared and studied. Complex 2 [Cu(SRaaiNR')(mu(1,1)-N-3)(N-3)](2) dimerises via end-to-end (mu(1,3))-N-3 to form a tetrameric structure. Azido-copper(I) complexes of the ligands are obtained MeOH-bridged dimers, [Cu(SRaaiNR')(N-3)(mu-OHMe)](2) (3). The electronic spectra Suggest that a small reorganisation energy (0.08 eV) is associated with the change in electronic configuration, structure and oxidation state from Cu-II to Cu-I. Redox interconversion, Cu-II <-> Cu-I, [Cu(SMeaaiNMe)(mu-N-3)-(N-3)](2) (2a) <-> [Cu(SMeaaiNMe)(N-3)(mu-OHCH3)](2) (3a), has been performed in one case. The tetranuclear complex shows ferromagnetic and antiferromagnetic interactions. The spectra, redox chemistry and magnetism are explained by DFT studies.

KW - Copper

KW - Bridging ligands

KW - Structure elucidation

KW - Magnetic properties

KW - Redox chemistry

KW - TRANSITION-METAL-COMPLEXES

KW - ELECTRON-TRANSFER KINETICS

KW - CRYSTAL-STRUCTURE

KW - CONTAINING LIGANDS

KW - SULFUR-LIGATION

KW - THIOETHER

KW - COORDINATION

KW - POTENTIALS

KW - REDUCTION

KW - SYSTEMS

UR - http://www.scopus.com/inward/record.url?scp=74349124244&partnerID=8YFLogxK

U2 - 10.1002/ejic.200900648

DO - 10.1002/ejic.200900648

M3 - Article

SN - 1434-1948

SP - 311

EP - 321

JO - European Journal of Inorganic Chemistry

JF - European Journal of Inorganic Chemistry

IS - 2

ER -

Copper-Azide-Thioarylazoimidazoles - Structure, Spectra, Redox Properties, Magnetism and Theoretical Interpretation

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Keywords

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