Photoinduced denitrosyl dinuclearizing reaction of dinitrosyl-molybdenum [Mo(didentate-N,S)2(NO)2] complexes

Abstract The cis (NO,NO)- trans (S,S)-[MoL 2 (NO) 2 ] complexes [L = 2-pyrimidinethiolate (pymt) 1 and 2-pyridinethiolate (pyt) 2 ] were newly prepared by the reaction of the [Mo(NO) 2 ] 2+ solution with the thiolate ligands. Under room light, complexes 1 and 2 released one of two nitric oxide (NO) to give μ-OH dinuclear complexes, [{(ON)MoL 2 } 2 (μ-OH) 2 ] (L = pymt 3 and pyt 4 ). The central molybdenum ion circumference turns from six-coordination into seven-coordination, and oxidation number also varies with this reaction from 0 to +II.