Reaction of buta-1,3-diyne with AuCl(PPh3) and (AuCl)2(μ-dppm) in the presence of base gave the diynyl complexes Au(CCCCH)(PPh3) 1 and Au(CCCCH)}2(μ-dppm) 2, respectively. Similar reaction of W(CCCCH)(CO)3Cp with the two gold(I) complexes gave the heteronuclear diyndiyls WCCCC[Au(PPh3]}(CO)3Cp (known) and Au(CCCC[W(CO)3Cp])}2(μ-dppm) 3. Reaction of [ppn][Au(acac)2] with the appropriate diynes afforded [ppn][Au(CCCCH)2] 4, [ppn][AuCCCC[W(CO)3Cp]}2] 5, [ppn][AuCCCC[Au(PPh3)]}2] 6 and [ppn][Au(CCC6H4CCPh)2] 7; the latter anion was also obtained as the very unstable NMe4 salt. The reaction between 2 and Au(OTf)}2(μ-dppm) likely afforded cyclo-Au2(μ-CCCC)(μ-dppm)}28, although this compound was not structurally characterised. On one occasion, the molecular rod Cu3(μ-dppm)3}(μ3-I)(μ3-η1-CCCCAuCCCCH) 9 was isolated and crystallographically characterised; a rational approach to 8 from [ppn][Au(CCCCH)2] and [Cu3(μ-dppm)3}(μ3-I)2]I
gave instead the molecular dumbbell [Cu3(μ3-I)(μ-dppm)3}2(μ3:μ3-CCCCAuCCCC)]I 10.
在碱存在下,丁-1,3-二炔与 AuCl(PPh3) 和 (AuCl)2(δ-dppm) 反应,分别得到二炔配合物 Au(CCCCH)(PPh3) 1 和 Au(CCCCH)}2(δ-dppm) 2。W(CCCCH)(CO)3CP 与两种
金(I)配合物发生类似反应,得到异核二炔基 WCCCC[Au(PPh3]}(CO)3CP (已知)和 Au(CCCC[W(CO)3CP])}2(δ-dppm) 3。将 [ppn][Au(acac)2]与适当的二炔反应可得到 [ppn][Au(CCCCH)2] 4、[ppn][AuCCC[W(CO)3CP]}2]5、[ppn][AuCCCCC[Au(PPh3)]}2]6 和 [ppn][Au(CCC6H4CCPh)2] 7;后一种阴离子还以非常不稳定的 NMe4 盐的形式出现。2 和Au(OTf)}2(δ-dppm)之间的反应很可能产生了环-Au2(δ-CCCC)(δ-dppm)}28,尽管这种化合物没有得到结构表征。有一次,Cu3(δ-dppm)3}(δ3-I)(δ3-δ-1-CCCCAuCCCCH) 9 分子杆被分离出来并进行了晶体学表征;从[ppn][Au(CCCCH)2]和[Cu3(δ-dppm)3}(δ-¼3-I)2]I 中合理地得到了分子哑铃[Cu3(δ-¼3-I)(δ-dppm)3}2(δ3:δ3-CCCCAuCCCC)]I 10.