Nitric Oxide Reactivity of Fluorophore Coordinated Carboxylate-Bridged Diiron(II) and Dicobalt(II) Complexes
作者:Scott A. Hilderbrand、Stephen J. Lippard
DOI:10.1021/ic049649l
日期:2004.8.1
characterization, and NO reactivity of carboxylate-bridged dimetallic complexes were investigated. The diiron(II) complex [Fe(2)(mu-O(2)CAr(Tol))(4)(Ds-pip)(2)] (1), where O(2)CAr(Tol) = 2,6-di(p-tolyl)benzoate and Ds-pip = dansyl-piperazine, was prepared and determined by X-ray crystallography to have a paddlewheel geometry. This complex reacts with NO within 1 min with a concomitant 4-fold increase in
研究了羧酸盐桥联的双金属配合物的合成,结构表征和NO反应性。二铁(II)配合物[Fe(2)(mu-O(2)CAr(Tol))(4)(Ds-pip)(2)](1),其中O(2)CAr(Tol)= 2制备了6-6-二(对甲苯基)苯甲酸酯和Ds-pip =丹酰基-哌嗪,并通过X射线晶体学测定其具有桨轮几何形状。该配合物在1分钟内与NO反应,伴随着荧光发射强度的4倍增加,这归因于Ds-pip的位移。尽管二铁配合物会与NO反应,如红外光谱研究所揭示,但其对双氧的敏感性使其不适合用作大气NO传感器。还合成了空气稳定的二钴(II)类似物,并研究了其反应性。在解决方案中,二叶酸(II)络合物作为桨轮[Co(2)(mu-O(2)CAr(Tol))(4)(Ds-pip)(2)](2)和风车[Co(2 )(mu-O(2)CAr(Tol))(2)(O(2)CAr(Tol))(2)(Ds-pip)(2)](3)几何