(µ-PCy2)(CNtBu)2]BF4, and [Mo2Cp2µ-η2:η2-C(OMe)C(OMe)}(µ-PCy2)(µ-tedip)]BF4, respectively. These products contain a bonded dialkoxyacetylene molecule resulting from the coupling of two alkoxycarbyne ligands, induced by the addition of the donor molecules to the unsaturated dimetal center of the starting material, and this coupling can be fully reversed in the dicarbonyl product upon photochemical
                                    30电子复合物的反应[沫2的CP 2(μ-COME)(μ-COR)(μ-PCY 2)] BF 4(CP =η 5 -C 5 H ^ 5 ; R = ME等)与CO,CN吨Bu或tetraethylpyrophosphite(tedip)导致新的32电子配合物[沫2的CP 2 μ-η 2:η 2 -C(OME)C(OR)}(μ-PCY 2)(CO )2 ] BF 4,[沫2的CP 2 μ-η 2:η 2 -C(OME)C(OME)}(μ-PCY 2)(CN吨丁基)2] BF 4和[沫2的CP 2 μ-η 2:η 2 -C(OME)C(OME)}(μ-PCY 2)(μ-tedip)] BF 4,分别。这些产物包含由两个烷氧基碳炔
配体的偶联产生的键合的二烷氧基
乙炔分子,其通过将供体分子添加到起始材料的不饱和双
金属中心而诱导,并且该偶联可以在光
化学处理后在二羰基产物中完全逆转。结晶学上证实了