Formation of a sulfur-atom-inserted N-confused porphyrin iron nitrosyl complex by denitrosation and C-S bond cleavage of an S-nitrosothiol

Chen-Hsiung Hung; Wei-Min Ching; Gao-Fong Chang; Chuan-Hung Chuang; Han-Wei Chu; Way-Zen Lee

doi:10.1021/ic7018378

Formation of a sulfur-atom-inserted N-confused porphyrin iron nitrosyl complex by denitrosation and C-S bond cleavage of an S-nitrosothiol

Inorg Chem. 2007 Dec 24;46(26):10941-3. doi: 10.1021/ic7018378. Epub 2007 Nov 22.

Authors

Chen-Hsiung Hung¹, Wei-Min Ching, Gao-Fong Chang, Chuan-Hung Chuang, Han-Wei Chu, Way-Zen Lee

Affiliation

¹ Institute of Chemistry, Academia Sinica, Nankang, Taipei, Taiwan. chhung@chem.sinica.edu.tw

PMID: 18031036
DOI: 10.1021/ic7018378

Abstract

The reaction of nitrosothiol, Ph3CSNO, with a divalent iron N-confused porphyrin complex, Fe(HCTPPH)Br, yields a {Fe(NO)}6 iron nitrosyl complex with a sulfur atom inserted in the Fe-C bond. The crystal structure reveals a bent Fe-N-O geometry and an eta2-(C,S) bonding mode between iron and the C-S bond. A reaction mechanism involving a transnitrosation and a nitrosothiol C-S bond cleavage is proposed.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Carbon / chemistry*
Crystallography, X-Ray
Electron Spin Resonance Spectroscopy
Iron / chemistry*
Magnetic Resonance Spectroscopy
Models, Molecular
Molecular Structure
Nitrogen / chemistry*
Nitrogen Oxides / chemistry*
Porphyrins / chemistry*
S-Nitrosothiols / chemistry*
Sulfur / chemistry*

Substances

Nitrogen Oxides
Porphyrins
S-Nitrosothiols
dinitrosyl iron complex
Sulfur
Carbon
Iron
Nitrogen