Tuning Coordination Environments Through Ligand Redox Chemistry: the Thiol - Disulfide Reaction
作者:Edwin C. Constable、Catherine E. Housecroft、Markus Neuburger、Jason R. Price、Jennifer A. Zampese
DOI:10.1071/ch10105
日期:——
Oxidative coupling of 6-(pyridin-2-yl)pyridine-2(1H)-thione yields 1,2-bis(2,2′-bipyridin-6-yl)disulfide (4), which can act as a bis(chelate) to a single zinc(ii) centre. The effects on the solid-state structure of introducing a methyl substituent into each 6-position of 4 have been examined. Ligand 4 functions as a bridging ligand in [Cu2(μ-4)(μ-6)]4+ in which ligand 6 is 1,2-bis(2,2′:6′,2″-terpy
6-(吡啶-2-基)吡啶-2(1 H)-硫酮的氧化偶联生成1,2-双(2,2'-联吡啶-6-基)二硫化物(4),其可作为双(螯合物)到一个单一的锌(ii)中心。已经研究了将甲基取代基引入4的每个6-位对固态结构的影响。配体4在[Cu 2(μ- 4)(μ- 6)] 4+中作为桥连配体,其中配体6为1,2-双(2,2':6',2''-三联吡啶-4' -基)二硫化物; [Cu 2(μ- 4)(μ- 6)] 4+在五坐标Cu(bpy)(tpy)}环境中,根据铜(ii)所示的首选项从这些组件进行自组装。的反应4与[铜(NCMe)4 ] [PF 6 ]通向产品,姑且配制为[铜(4)] [PF 6 ]} Ñ,其中,在空气中,经受两个铜的氧化和配体得到[Cu(5)2 ](H 5= 2,2′-联吡啶-6-磺酸),其固态结构被呈现。