مشخصات پژوهش

عنوان	New Rh(III) complexes of 5‐methyl‐5‐(pyridyl)‐2,4‐ imidazolidenedione: Synthesis, X‐ray structure, electrochemical study and catalytic behaviour for hydrogenation of ketones
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	electrochemical study, hydrogenation, Rh(III) complexes, spectroscopy, synthesis, X‐ray structure
چکیده	We describe the reaction of anion [RhCl6]3− with a series of hydantoin ligands (HL1, HL2 and HL3 = 5‐methyl‐5‐(2‐, 3‐ and 4‐pyridyl)‐2,4‐imidazolidenedione, respectively). Based on spectroscopic, cyclic voltammetric, elemental and MS analyses, the complexes have the general formula K[RhCl2(L1)2] (1), cis‐ and trans‐K[RhCl4(HL2)2] (2a and 2b) and cis‐ and trans K[RhCl4(HL3)2] (3a and 3b). Complexes 2a, 2b, 3a and 3b were characterized successfully using infrared, 1H NMR and 13C NMR spectral analyses. Dissolution of complex 1 in dimethylsulfoxide (DMSO) led to elimination of one KL1 ligand and coordination of two DMSO molecules as ligands and transformation of this complex to cis‐ and trans‐[RhCl2L1(DMSO)2] (1a and 1b). Recrystallization led to separation and isolation of crystals of 1a from the initial mixture. X‐ray analysis results showed that this complex was crystallized as solvated complex cis‐[RhCl2L1(DMSO)2]DMSO. The catalytic activity of these complexes was then evaluated for the hydrogenation ofvarious ketones. ر
پژوهشگران	سیدجواد سیدزاده صابونچی (نفر اول)، محسن صیادی (نفر دوم)، مژده سادات هاشمی (نفر سوم)، علی هاشمی (نفر چهارم)، داود نعمت الهی (نفر پنجم)، Robert W. Gable (نفر ششم به بعد)، اسلام صلاحی فر (نفر ششم به بعد)