پیوندهای مفید
اخبار و اعلانات
آمار
| تعداد نشریات | 162 |
| تعداد شماره‌ها | 6,691 |
| تعداد مقالات | 72,219 |
| تعداد مشاهده مقاله | 129,107,480 |
| تعداد دریافت فایل اصل مقاله | 101,910,819 |
Sn(IV) Compounds Interaction with Metal-Schiff Base Complexes | ||
| Journal of Sciences, Islamic Republic of Iran | ||
| مقاله 4، دوره 23، شماره 3، آذر 2012، صفحه 225-230 اصل مقاله (455.01 K) | ||
| نویسنده | ||
| M. Mohammadikish | ||
| Chemistry Department, Faculty of Sciences, Kermanshah Branch, Islamic Azad University, | ||
| چکیده | ||
| The formation constants and Gibbs free energy for the interaction of RnSnClm (n = m = 2, R = Me, Ph, n-Bu or n = 4, m = 0, R = Ph) compounds as acceptors, with ML complexes (H2L = N,N'-bis(salicylidene)-2-aminobenzylamine (salabza-H2) and its derivatives, M = Mn2+ or Zn2+), as donors in N,N'-dimethylformamide (DMF) as solvent were studied. These parameters were measured by using UV-vis spectrophotomety titration for 1:1 adduct formation of the selected complexes at 25 (±0.1) °C in the 200-500 nm regions. The trend of adduct formation constants between metal Schiff base complexes as donors and tin(IV) as acceptor decreases as follow: Me2SnCl2> Ph2SnCl2 > n-Bu2SnCl2> Ph4Sn [M(5-OMe-salabza)]>[M(salabza)]>[M(5-Br-salabza)]>[M(5-NO2-salabza)] Zn > Mn | ||
| عنوان مقاله [English] | ||
| Sn(IV) Compounds Interaction with Metal-Schiff Base Complexes | ||
| نویسندگان [English] | ||
| M. Mohammadikish | ||
| چکیده [English] | ||
| The formation constants and Gibbs free energy for the interaction of RnSnClm (n = m = 2, R = Me, Ph, n-Bu or n = 4, m = 0, R = Ph) compounds as acceptors, with ML complexes (H2L = N,N'-bis(salicylidene)-2-aminobenzylamine (salabza-H2) and its derivatives, M = Mn2+ or Zn2+), as donors in N,N'-dimethylformamide (DMF) as solvent were studied. These parameters were measured by using UV-vis spectrophotomety titration for 1:1 adduct formation of the selected complexes at 25 (±0.1) °C in the 200-500 nm regions. The trend of adduct formation constants between metal Schiff base complexes as donors and tin(IV) as acceptor decreases as follow: Me2SnCl2> Ph2SnCl2 > n-Bu2SnCl2> Ph4Sn [M(5-OMe-salabza)]>[M(salabza)]>[M(5-Br-salabza)]>[M(5-NO2-salabza)] Zn > Mn | ||
|
آمار تعداد مشاهده مقاله: 1,638 تعداد دریافت فایل اصل مقاله: 2,750 |
||
سامانه مدیریت نشریات علمی. قدرت گرفته از سیناوب