Preparation and oxygenation of cobalt N-confused porphyrin nitrosyl complexes

Chen Hsiung Hung; Chih Hsiung Peng; Yi Ling Shen; Sian Ling Wang; Chuan Hung Chuang; Man Lee Hon

doi:10.1002/ejic.200701072

Preparation and oxygenation of cobalt N-confused porphyrin nitrosyl complexes

Chen Hsiung Hung, Chih Hsiung Peng, Yi Ling Shen, Sian Ling Wang, Chuan Hung Chuang, Man Lee Hon

Department of Chemistry

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

8 Citations (Scopus)

Abstract

The nitrosylation of Co(HCTPP) (1) in CH₂Cl₂ afforded [Co(CTPPC₂H₂Cl)(NO)] (2) with a chlorovinyl group substituent on the inner carbon atom of the N-confused porphyrin ring. The spectroscopic data suggest that 1 exhibits an {Co(NO)}⁸ electronic structure. The nitrosylation of 1 in the presence of oxygen leads to [Co(CTPPO)(NO)] (3), which is a {Co(NO)}⁷ cobalt nitrosyl complex. A bent axial Co-N-O conformation was observed in both nitric oxide complexes with an angle of 128.5(7)° for 2 and 146.9(11)° for 3. An sp³ hydride carbon atom was evidenced in the crystal structure of 2, and an η² interaction between the cobalt center and the inner carbonyl group was observed.

Original language	English
Pages (from-to)	1196-1199
Number of pages	4
Journal	European Journal of Inorganic Chemistry
Issue number	8
DOIs	https://doi.org/10.1002/ejic.200701072
Publication status	Published - 2008 Mar 1

All Science Journal Classification (ASJC) codes

Inorganic Chemistry

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10.1002/ejic.200701072

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title = "Preparation and oxygenation of cobalt N-confused porphyrin nitrosyl complexes",

abstract = "The nitrosylation of Co(HCTPP) (1) in CH2Cl2 afforded [Co(CTPPC2H2Cl)(NO)] (2) with a chlorovinyl group substituent on the inner carbon atom of the N-confused porphyrin ring. The spectroscopic data suggest that 1 exhibits an {Co(NO)}8 electronic structure. The nitrosylation of 1 in the presence of oxygen leads to [Co(CTPPO)(NO)] (3), which is a {Co(NO)}7 cobalt nitrosyl complex. A bent axial Co-N-O conformation was observed in both nitric oxide complexes with an angle of 128.5(7)° for 2 and 146.9(11)° for 3. An sp3 hydride carbon atom was evidenced in the crystal structure of 2, and an η2 interaction between the cobalt center and the inner carbonyl group was observed.",

author = "Hung, {Chen Hsiung} and Peng, {Chih Hsiung} and Shen, {Yi Ling} and Wang, {Sian Ling} and Chuang, {Chuan Hung} and Hon, {Man Lee}",

year = "2008",

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doi = "10.1002/ejic.200701072",

language = "English",

pages = "1196--1199",

journal = "Chemische Berichte",

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T1 - Preparation and oxygenation of cobalt N-confused porphyrin nitrosyl complexes

AU - Hung, Chen Hsiung

AU - Peng, Chih Hsiung

AU - Shen, Yi Ling

AU - Wang, Sian Ling

AU - Chuang, Chuan Hung

AU - Hon, Man Lee

PY - 2008/3/1

Y1 - 2008/3/1

N2 - The nitrosylation of Co(HCTPP) (1) in CH2Cl2 afforded [Co(CTPPC2H2Cl)(NO)] (2) with a chlorovinyl group substituent on the inner carbon atom of the N-confused porphyrin ring. The spectroscopic data suggest that 1 exhibits an {Co(NO)}8 electronic structure. The nitrosylation of 1 in the presence of oxygen leads to [Co(CTPPO)(NO)] (3), which is a {Co(NO)}7 cobalt nitrosyl complex. A bent axial Co-N-O conformation was observed in both nitric oxide complexes with an angle of 128.5(7)° for 2 and 146.9(11)° for 3. An sp3 hydride carbon atom was evidenced in the crystal structure of 2, and an η2 interaction between the cobalt center and the inner carbonyl group was observed.

AB - The nitrosylation of Co(HCTPP) (1) in CH2Cl2 afforded [Co(CTPPC2H2Cl)(NO)] (2) with a chlorovinyl group substituent on the inner carbon atom of the N-confused porphyrin ring. The spectroscopic data suggest that 1 exhibits an {Co(NO)}8 electronic structure. The nitrosylation of 1 in the presence of oxygen leads to [Co(CTPPO)(NO)] (3), which is a {Co(NO)}7 cobalt nitrosyl complex. A bent axial Co-N-O conformation was observed in both nitric oxide complexes with an angle of 128.5(7)° for 2 and 146.9(11)° for 3. An sp3 hydride carbon atom was evidenced in the crystal structure of 2, and an η2 interaction between the cobalt center and the inner carbonyl group was observed.

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