Formation of mixed ligand complexes of Ni(II), Pd(II), and Pt(II) involving salicylidine-3-amino-1,2,4-triazole (schiff base) as a primary ligand and cysteine as secondary ligand
Author
Source
The Arabian Journal for Science and Engineering. Section A, Science
Issue
Vol. 30, Issue 1A (31 Jan. 2005), pp.29-37, 9 p.
Publisher
King Fahd University of Petroleum and Minerals
Publication Date
2005-01-31
Country of Publication
Saudi Arabia
No. of Pages
9
Main Subjects
Topics
Abstract AR
للمتراكبات الثنائية و الثلاثية لعناصر Ni (П), Pd (П), Pt (П) التي تحتوي على قاعدة شف ساليسيليد ين-3-امينو-1-,2,4 ترايزول كمتصلة أساسية (L1) و السيستسن كمتصلة ثانوية (L2) بنسبة 1 : 1 : 1، و ذلك عند درجات حرارة مختلفة (25، 30، 35، 40 م)، و في محلول 50 % v/v ماء / كحول، و عند قوة أيونية (0.1 M) من كلوريد صوديوم.
و قد تم حساب ثوابت الاستقرار للمتراكبات الثنائية و المختلطة لكل من متراكبات Ni (П), Pd (П), Pt (П)، و وجد أن الفرق في ثوابت الاستقرار ∆ logK_(M ) = log〖K_(M (Schiffbase)(Cys))^(M (Schiffbase )) 〗 - log〖K_(M (Cys))^M 〗 موجب مما يظهر السلوك المتعاون للمتصلات.
كما تم حساب الدوال الثيرموديناميكية ∆ H°,∆ S° للأنظمة مع تغيير في درجات الحرارة.
Abstract EN
The stability constants of the binary and ternary Ni(II), Pd(II), and Pt(II) complexes containing salicylidine -3-amino-1,2,4 triazole schiff base (L1) and a second ligand, cysteine (L2) in a 1:1:1 molar ratio were determined pHmetrically at different temperatures (25oC , 30oC , 35oC and 40oC) in 50% (v/v) aqueous EtOH at an ionic strength I=0.1M ( NaCl ).
The stability constants of the mono and mixed ligand complexes of Ni(II), Pd(II), and Pt(II) have been evaluated.
The difference in stability constants, ( ) log log ( )( ) log ( ) M Schiffbase M Δ KM = KM Schiffbase Cys − KM Cys is found to be positive, showing a cooperative behavior of the ligands.
Thermodynamic parameters Δ Ho and Δ So are calculated for systems controlled by variation in temperatures.
American Psychological Association (APA)
Hasan, Fatimah S. M.. 2005. Formation of mixed ligand complexes of Ni(II), Pd(II), and Pt(II) involving salicylidine-3-amino-1,2,4-triazole (schiff base) as a primary ligand and cysteine as secondary ligand. The Arabian Journal for Science and Engineering. Section A, Science،Vol. 30, no. 1A, pp.29-37.
https://search.emarefa.net/detail/BIM-359851
Modern Language Association (MLA)
Hasan, Fatimah S. M.. Formation of mixed ligand complexes of Ni(II), Pd(II), and Pt(II) involving salicylidine-3-amino-1,2,4-triazole (schiff base) as a primary ligand and cysteine as secondary ligand. The Arabian Journal for Science and Engineering. Section A, Science Vol. 30, no. 1A (Jan. 2005), pp.29-37.
https://search.emarefa.net/detail/BIM-359851
American Medical Association (AMA)
Hasan, Fatimah S. M.. Formation of mixed ligand complexes of Ni(II), Pd(II), and Pt(II) involving salicylidine-3-amino-1,2,4-triazole (schiff base) as a primary ligand and cysteine as secondary ligand. The Arabian Journal for Science and Engineering. Section A, Science. 2005. Vol. 30, no. 1A, pp.29-37.
https://search.emarefa.net/detail/BIM-359851
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 36-37
Record ID
BIM-359851
