Photochemical reactions of metal carbonyls with heteroaromatic methanesulfonylhydrazone-based ligands
Makaleler > Tam Makale · 2014
Yazarlar: Gunnur Orhan, Ozan Sanli Senturk, Ummuhan Ozdemir Ozmen, Sema Sert, Elif Subasi
Journal of Coordination Chemistry, Uluslararası, Wos, 2014, cilt 67, ss 3216-3225
DOI: 10.1080/00958972.2014.963569
Özet
Three new heteroaromatic methanesulfonylhydrazone derivatives: thiophene-2-carboxy aldehydemethanesulfonylhydrazone (msh 1), 2-acetylthiophenemethanesulfonylhdrazone (msh 2), and 2-acetyl-5-methylthiophenemethanesulfonylhydrazone (msh 3) were prepared and their metal carbonyl complexes ([M(CO)5(msh 1)] M = Cr, 1a; Mo, 1b; W, 1c); ([M(CO)5(msh 2)] M = Cr, 2a; Mo, 2b; W, 2c); and ([M(CO)5(msh 3)] M = Cr, 3a; Mo, 3b; W, 3c) were synthesized by photochemical reactions of [M(CO)6 M = Cr, Mo, W] with msh 1–3. Heteroaromatic methanesulfonylhydrazones, msh 1–3, and their metal carbonyl complexes were characterized by elemental analysis, mass spectrometry, IR, and 1H and 13C–{1H} NMR spectroscopy. According to all the spectroscopic data, msh 1–3 are monodentate and coordinate via thiophene ring sulfur. The msh 1–3 must act as two-electron donors to satisfy the 18-electron rule.