Dibridged Bis (Zn2+-cyclen): A Novel Host Molecule of Malonate Dianion in Aqueous Solution

…, S Kishida, T Ishizu, M Shiro, E Kinoshita…

Index: Fujioka, Haruto; Kishida, Sayuri; Ishizu, Takashi; Shiro, Motoo; Kinoshita, Eiji; Koike, Tohru Bulletin of the Chemical Society of Japan, 2010 , vol. 83, # 3 p. 267 - 272

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Citation Number: 5

Abstract

A dinuclear zinc (II) complex, m, m-bis (Zn 2+–cyclen) was synthesized as a novel host molecule for a malonate dianion. The dizinc (II) complex has two zinc (II)–cyclen moieties (cyclen= 1, 4, 7, 10-tetraazacyclododecane) connected through two m-xylene bridges. The 1: 1 association constant of log K (K={[malonate-bound m, m-bis (Zn 2+–cyclen)]/[m, m-bis (Zn 2+–cyclen)][malonate]}/M− 1) was determined to be 3.6 by potentiometric pH titration ...