EPR study of vanadyl complexes with Schiff bases derived from S-methyl-carbodithioato-hydrazine
نام عام مواد
[Thesis]
نام نخستين پديدآور
M. O. H. Al-Turabi
وضعیت نشر و پخش و غیره
نام ناشر، پخش کننده و غيره
King Fahd University of Petroleum and Minerals (Saudi Arabia)
تاریخ نشرو بخش و غیره
1992
مشخصات ظاهری
نام خاص و کميت اثر
125
یادداشتهای مربوط به پایان نامه ها
جزئيات پايان نامه و نوع درجه آن
M.S.
کسي که مدرک را اعطا کرده
King Fahd University of Petroleum and Minerals (Saudi Arabia)
امتياز متن
1992
یادداشتهای مربوط به خلاصه یا چکیده
متن يادداشت
An EPR line width study at 9 GHz was focussed on oxovanadium(IV) systems in the motional narrowing region. The anisotropy of rotation (N) and the correlation time usd(\tau\sb{R})usd were determined. The first system is bis(S-methyl-3-isopropylidenehydrazinecarbodithioato)oxovanadium(IV) in toluene. The second system is S-methyl-N-5-methoxysalicylidenehydrazinecarbodithioatophenanthrolineoxovanadium(IV) in methylene chloride. The magnetic parameters of these two systems were determined. N obtained for the first system (2.5 0.5 at an axis usd\bar{Z}=Y)usd was found to be consistent with the Stokes-Einstein model and the Allowed-Values Equation (AVE) for a monomer in solution with a trans structure. N obtained for the second system (1.7 0.5 at an axis usd\bar{Z}=Y)usd was found to be consistent with the Stokes-Einstein model and the AVE. From the molecular relaxation in liquids analysis, it seems that the solute in the second system is experiencing more stickiness behavior than that in the first system. The magnetic parameters of S-methyl-N-salicylidenehydrazinecarbodithioatophenanthrolineoxovanadium(IV) in toluene were also determined.
موضوع (اسم عام یاعبارت اسمی عام)
موضوع مستند نشده
Chemistry
موضوع مستند نشده
Pure sciences
نام شخص به منزله سر شناسه - (مسئولیت معنوی درجه اول )