Divalent and trivalent nickel complexes of 1,4,8,11-tetraazacyclotetradecane, denoted as cyclam hereafter, coordinated by methyl coenzyme M (MeSCoM–) and coenzyme M (HSCoM–) have been synthesized in the course our model studies of methyl coenzyme M reductase (MCR). The divalent nickel complexes Ni(cyclam)(RSCoM)2 (R = Me, H) have two trans-disposed RSCoM– ligands at the nickel(II) center as sulfonates
                                    在我们对甲基
辅酶M的模型研究过程中,合成了
1,4,8,11-四氮杂环十四烷的二价和三价
镍配合物(以下称为Cyclam),由甲基
辅酶M(MeSCoM –)和
辅酶M(HSCoM –)协调。还原酶(MCR)。二价
镍配合物的Ni(cyclam)(RSCoM)2(R = Me中,2H)有两个反式布置RSCoM -
配体在
镍(II)中心为
磺酸盐,并且因此,
镍具有八面体配位。还合成了SCoM 2–加合物Ni(cyclam)(SCoM),其中SCoM 2–
配体通过
硫醇盐硫和
磺酸盐氧螯合
镍。三价MeSCoM加合物[Ni(cyclam)(MeSCoM)2通过用(n Bu 4 N)[MeSCoM]处理[Ni(cyclam)(NCCH 3)2 ](OTf)3来合成](OTf)。用(A类似的反应Ñ卜4 N)[HSCoM]没有得到相应的三价HSCoM -加合物,而是二价
镍配合物的聚合物[-Ni II(cyclam)(CoMSSCoM)