Photochemical reactions of metal carbonyls with heteroaromatic methanesulfonylhydrazone-based ligands


Orhan G., Şentürk O. S. , Ozmen U. O. , SERT S., Subasi E.

JOURNAL OF COORDINATION CHEMISTRY, cilt.67, ss.3216-3225, 2014 (SCI İndekslerine Giren Dergi) identifier identifier

  • Cilt numarası: 67 Konu: 19
  • Basım Tarihi: 2014
  • Doi Numarası: 10.1080/00958972.2014.963569
  • Dergi Adı: JOURNAL OF COORDINATION CHEMISTRY
  • Sayfa Sayıları: ss.3216-3225

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 H-1 and C-13-{H-1} 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.