CuL（ClO_4）_2－CH_2（COOH）_2－KBrO_3－H_2SO_4  

New Oscillating Reactions in the CuL(ClO_4)_2-CH_2(COOH)_2-KBrO_3-H_2SO_4 System

作　　者：宋继梅[1] 倪诗圣[1] 徐济德[1] 

机构地区：[1]合肥地矿部石海局化探中心,安徽大学化学系

出　　处：《安徽大学学报（自然科学版）》1995年第1期68-73,共6页Journal of Anhui University(Natural Science Edition)

基　　金：国家自然科学基金

摘　　要：本文报道了７，１４－二甲基－５，７，１２，１４－四乙基－１，４，８，１１－四氮杂十四环－４，１１－二烯合铜ＣｕＬ（ＣｌＯ４）２参与的化学振荡反应。以新处理的乙腈作溶剂，测得了［ＣｕＬ］３＋／［ＣｕＬ］２＋电对的还原电位为１．２４Ｖ。振荡反应的诱导期和波形随丙二酸浓度的变化而变化。丙团替代两二酸，振荡反应明显地受到抑制。丙烯酰胺能够立即淬灭振荡，［Ｉ－］≥２．０×１０－３ｍｏｌ·ｄｍ－３时，化学振荡被完全抑制。该体系组份浓度的振荡范围已经获得。New oscillating reations with the participation of a macrocyclic (Ⅱ) complex ion [CuL]2+ as catalyst in acidic bromate medium have ben studied. This complex ion contains the ligand 7, 14-dimethy 1-5, 7, 12, 14-tetraethy 1-1, 4, 8, 11- tetraazacyclotetradeca- 7, 1 4 -diene. The reduction potential of the couple [CuL ]3+ / [CuL]2+in actonitrile is found to be 1. 24V. The dolnains of the existence of the oscillations have been determined. The induction period and waveform of oscillating reactions are related to the malonic acid content. In the case of acetone as substrate, the oscillations are damped rapidly. The concentration oscillations of this system are inhibited by I- ion, when I- ion concentration exceeds 2. 0× 10-3 mol. dm-3. Acrylamide can entirely inhibit the oscillatins.

关 键 词：四氮杂大环 配合物 催化 化学振荡反应 生物化学 

分 类 号：Q504[生物学—生物化学]