مشخصات پژوهش

صفحه نخست /Benzyl Dihydrazone versus ...
عنوان Benzyl Dihydrazone versus Thiosemicarbazone Schiff Base: Effects on the Supramolecular Arrangement of Cobalt Thiocyanate Complexes and the Generation of CoN6 and CoN4S2 Coordination Spheres
نوع پژوهش مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها benzyl dihydrazone and thiosemicarbazone Schiff bases
چکیده In this study, we examine the coordination chemistry of benzyl dihydrazone and thiosemicarbazone Schiff bases featuring different chelation modes, steric bulk, and reactivities towards cobalt(II) thiocyanate. The tetradentate benzyl dihydrazone ligands coordinate to the Co(SCN)2 fragment to form CoN6 coordination spheres (1–3), whereas the thiosemicarbazone ligands provide CoIII complexes featuring CoN4S2 coordination spheres (4 and 5) and charge-balancing anions {SCN– and [Co(SCN)4]2– for 4 and 5, respectively}. Hirshfeld surface (HS) analysis revealed a substituent effect that results in an increasing number of H···H contacts in the order –H < –CH3 < –Ph (1–3, respectively). The H bonding in 4 and 5 as well as the associated energies were computed by the DFT approach, and these interactions appear to be crucial for the formation of the supramolecular systems. The DFT study also suggested that the H-bonded dimers in 5 are examples of the recently described “antielectrostatic” H bonds.
پژوهشگران آنتونیو فرانترو (نفر ششم به بعد)، واسیل کینزبالو (نفر ششم به بعد)، ولادیمیر استیلینوویچ (نفر ششم به بعد)، ماسیج کوبیکی (نفر ششم به بعد)، فدور زوبکو (نفر پنجم)، آنتونیو بوازو (نفر چهارم)، آتش قربانو (نفر سوم)، جان زاربا (نفر دوم)، قدرت محمودی (نفر اول)