PYR). Crystal structures of [PYR‐Mg(nBu)}2], [PYR‐MgNH(iPr)BH3}2], [NN‐MgNH(iPr)BH3}2]⋅THF and the decomposition products [PYR‐Mg2(iPrN‐BH‐iPrN‐BH3)] and [NN‐Mg2(iPrN‐BH‐iPrN‐BH3)]⋅THF are presented. The following conclusions can be drawn from these studies: i) The first step in the decomposition of a metal amidoborane complex is β‐hydride elimination, which results in formation of a metal hydride
制备了[(D
IPPnacnac)MgNH(R)BH 3 ]型的配合物(D
IPPnacnac = CH (CMe)(2,6 - i Pr 2 C 6 H 3 N)} 2)。已使用以下取代基R:H,Me,i Pr,D
IPP(D
IPP = 2,6-二异丙基苯基)。配合物[(D
IPPnacnac)MgNH 2 BH 3 ]·THF,[((D
IPPnacnac)MgNH(i Pr)BH 3 } 2 ]和[(D
IPPnacnac)MgNH(D
IPP)BH 3]的结构特征。Mg
氨基
硼烷络合物的分解温度(90-110°C)比相应的Ca
氨基
硼烷络合物(20-110°C)高得多。具有较小R取代基(H,Me)的配合物提供了分解产物的混合物,其分解物在结构上可以表征为[(D
IPPnacnac)Mg} 2(H 3 B‐NMe‐BH‐NMe)]·THF。[(D
IPPnacnac)MgNH(i Pr)BH 3 }