Preparation and Stereochemistry of Cobalt(III) Complexes Containing 2,2′-Bipyridine 1,1′-Dioxide
作者:Hideaki Kanno、Takahiro Yano、Katsumi Sato、Shunji Utsuno、Junnosuke Fujita
DOI:10.1246/bcsj.70.1085
日期:1997.5
cobalt(III) complexes, [Co(N4)(bpdo)]3+ (N4 = (en)2, (tn)2, (NH3)4, and tren; bpdo = 2,2′-bipyridine 1,1′-dioxide) and [Co(en)2(rac-3,3′-Me2bpdo)]3+ (rac-3,3′-Me2bpdo = racemic3,3′-dimethyl-2,2′-bipyridine 1,1′-dioxide), were obtained, where tn and tren denote trimethylenediamine and 2,2′,2″-triaminotriethylamine, respectively. The [Co(en or tn)2(bpdo)]3+ and [Co(en)2(rac-3,3′-Me2bpdo)]3+ complexes form only
新的钴 (III) 配合物,[Co(N4)(bpdo)]3+ (N4 = (en)2, (tn)2, (NH3)4, and tren; bpdo = 2,2'-bipyridine 1,1 '-二氧化物) 和 [Co(en)2(rac-3,3'-Me2bpdo)]3+ (rac-3,3'-Me2bpdo = 外消旋 3,3'-二甲基-2,2'-联吡啶 1,1 '-二氧化物),其中 tn 和 tren 分别表示三亚甲基二胺和 2,2',2”-三氨基三乙胺。[Co(en or tn)2(bpdo)]3+ 和 [Co(en)2(rac-3,3'-Me2bpdo)]3+ 复合物仅形成两个可能的非对映异构体外消旋对中的一个,它们已被解析通过 SP-Sephadex 柱层析。根据 13C NMR 和圆二色光谱,以及光学活性游离 3,3'-Me2bpdo 配体的绝对构型,每对这些配合物被指定为具有 lel(Δ(λ)