Synthesis and molecular structures of N,N-dialkyl-4-nitrosoaniline adducts of formally d6 metalloporphyrins of ruthenium and cobalt
Abstract
Para-aminosubstituted nitrosoarenes react with Ru(CO)(OEP) or [Co(TPP)(THF)2]SbF6 (OEP2- = 2,3,7,8,12,13,17,18-octaethylporphyrinato dianion, TPP2- = 5,10,15,20-tetraphenylporphyrinato dianion) to generate Ru(OEP)(ONC6H4NMe2)2 and [Co(TPP)(ONC6H4NR2)2]SbF6 (R = Me, Et), respectively, in fair to high yields. These N-bound nitrosoarene complexes have been characterized by spectroscopic methods. The complexes Ru(OEP)(ONC6H4NMe2)2 and [Co(TPP)(ONC6H4NMe2)2]ClO4 have also been characterized by single-crystal X-ray crystallography. Their structures represent the first reported solid-state structures of Ru and Co porphyrins containing C-nitroso ligands.
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