The reaction of [Mn(CN)(PR3)(NO)(η-C5H4Me)] (R = Ph or OPh) with [AuCl(tht)] (tht = tetrahydrothiophene) in the presence of Na[BPh4] gave [Mn(CNBPh3)(PR3)(NO)(η-C5H4Me)], X-ray studies on which (R = OPh) confirm addition of triphenylboron to the nitrogen atom of the cyanomanganese centre. Comparison of the geometry of the Ph3BâNC interaction, as measured by the mean CâBâC angle and mean BâC length, with those of L·BPh3 species in the Cambridge Structural Database showed the manganese ligand to be a relatively weak donor comparable with a range of other N and O ligands. The complexes [Mn(CNBPh3)(PR3)(NO)(η-C5H4Me)], as well as cis-[Mn(CNBPh3)(CO)2P(OEt)3}(dppm)] and trans-[Mn(CNBPh3)(CO)(dppm)2], can be prepared directly from BPh3 and the appropriate cyanomanganese ligand. Each of the complexes undergoes one-electron oxidation at a platinum disc electrode in CH2Cl2 and the reaction of trans-[Mn(CNBPh3)(CO)(dppm)2] with [Fe(η-C5H5)2][PF6] gives trans-[Mn(CNBPh3)(CO)(dppm)2][PF6].
在 Na[BPh4] 存在下,[Mn(CN)(PR3)(NO)(δ--C5H4Me)](R =  Ph 或 OPh)与[AuCl(tht)](tht = Â
四氢噻吩)反应生成了[Mn(CNBPh3)(PR3)(NO)(δ--C5H4Me)]、对其进行的 X 射线研究(RÂ = OPh)证实,
氰锰中心的氮原子上添加了
三苯基硼。通过平均 CâBâC 角和平均 BâC 长度测量 Ph3BâNC 相互作用的几何形状,并将其与剑桥结构数据库中的 LÂ-BPh3 物种进行比较,结果表明
锰配体是一种相对较弱的供体,可与一系列其他 N 和 O
配体相媲美。配合物[Mn(CNBPh3)(PR3)(NO)(δ--C5H4Me)]以及顺式[Mn(CNBPh3)(CO)2P(OEt)3}(dppm)]和反式[Mn(CNBPh3)(CO)(dppm)2]可直接由 BPh3 和适当的
氰锰配体制备。每种配合物都会在
CH2Cl2 中的
铂盘电极上发生单电子氧化,反式-[Mn(CNBPh3)(CO)(dppm)2]与[Fe(δ--
C5H5)2][PF6]反应生成反式-[Mn(CNBPh3)(CO)(dppm)2][PF6]。