Kinetics of General Acid-Catalyzed Dissociation of Nickel (II) Polyazamacrocyclic Complexes

• Main Authors: Lu, Yi-Jiun, 盧怡君
• Other Authors: Liang,Bih-Fong
• Format: Others
• Language: zh-TW
• Published: 1996
• Online Access: http://ndltd.ncl.edu.tw/handle/99186509207837812069

碩士 === 東海大學 === 應用化學系 === 84 === (一)七氮巨環鎳(II)錯化合物氫離子解離反應:在25.0?.1?C,離子強度 控制在1.00M條件下,[NiN7-Me](ClO4)2在0.50M硝酸溶液中,k1,k2,k3值分 別為 k1=(5.70*E-04*[H+])/(1+11.70*[H+]) s-1; k2=3.51*E-09/[H+] +4.11*E-07 s-1; k3=(2.00*E-04*[H+])/(1+32.88*[H+]) s-1(二)在25.0 ?.1?C, 離子強度控制在2.00M,六氮巨環鎳(II)錯化合物在甲酸乙酸磷 酸緩衝溶液系統中所進行的一般酸解離反應,其反應速率方程式如下: kobsd=ka[H+]+kw+kHB[HB]T (1) Kinetics of proton-catalyzed dissociation of heptaazamacrocyclic nickel(II) complexes: The dissociation kinetics of heptaazamacrocyclic nickel(II) complexes has been studied spectrophotometrically in 0.50-0.01M HNO3 25.0?.1?c and the ionic strength iis held at 1.00M. For [NiN7-Me](ClO4)2, the resulting k1,k2,k3 value will be expressed as followsk1=(5.70*E-04[H+])/(1+11.70*[H+]) s-1 : k2=3.51*E-09/[H+] + 4.11*E-07 s-1 ; k3=(2.00*E-04*[H+])/(1+32.88*[H+]) s-1 (2) kinetics of general acid-catalyzed dissociation of hexaazamacrocyclic nickel(II) complexes: The kinetics of general acid-catalyzed dissociation of hexaazamacrocyclic nickel(II) complexes are followed specrophotometrically at 25.0?.1?C and ?2.00M in formic acid-formate, acetic acid-acetate, phosphoric acid-phosphorate buffer system