Inorganic Chemistry, Vol.36, No.18, 3876-3885, 1997
Activation of thionitrites and isoamyl nitrite by group 8 metalloporphyrins and the subsequent generation of nitrosyl thiolates and alkoxides of ruthenium and osmium porphyrins
Ruthenium and osmium porphyrins of the form (por)M(CO) (per = octaelhylporphyrinato diction (OEP), tetratolylporphyrinato dianion (TTP)) react with thionitrites (RSNO) and isoamyl nitrite (RONO) to give the (por)(NO)(SR) and (por)M(NO)(OR) addition products. Reaction of S-nitroso-N-acetyl-L-cysteine methyl ester with (TPP)Fe(THF)(2) (TPP tetraphenylporphyrinato dianion) gives (TPP)Fe(NO) in high yield. The related reaction of isoamyl nitrite with [(TPP)Fe(THF)(2)](+) gives the nitrosyl alcohol product [(TPP)Fe(NO)(HO-i-C5H11)](+). The solid stare structures of (OEP)Ru(NO)(NACysMe-S) (NACysMe = N-acetyl-L-cysteinate methyl ester), (TTP)Os(NO)(S-i-C5H11), and [(TPP)Fe(NO)(HO-i-C5H11)](+) have been determined by X-ray diffraction.