reaction time and reagent concentrations. For comparison, the behaviour of phenylacetylene under similar conditions has been examined and trans-[Pt(CCPh)(CH2CPh)(PPh3)2] has also been obtained. The structures of (1) and (2) have been determined by single-crystal X-ray drffractometry: (1), monoclinic, a= 15.521 (3), b= 18.738(8), c= 16.872(5)Å, β= 125.07(2)°, Z= 4, space group Cc, R= 0.056: (2), orthorhombic
当在异
丙烯基
乙炔的存在下,将顺式-[
PTCl 2(PPh 3)2 ]与
水合
肼在
乙醇中加热时,可获得三种主要产物:反式-[
PTCl(CH 2 C–
CME CH 2)(PPh 3)2 ]( 1),反式- [
铂(CH 2 C-
CME CH 2)(C C-
CME CH 2)(PPH 3)2 ](2),和[
PT(CH C-
CME CH 2)(PPH 3)2](3)。(1),(2)或(3)的形成取决于反应时间和试剂浓度。为了比较,已经研究了在相似条件下
苯乙炔的行为,并且还获得了反式-[
PT(C CPh)(CH 2 CPh)(PPh 3)2 ]。(1)和(2)的结构已通过单晶X射线衍射法确定:(1),单斜晶,a = 15.521(3),b = 18.738(8),c = 16.872(5)Å, β= 125.07(2)°,Z = 4,空间群Cc,R = 0.056:(2),正交,a = 18.94(1),b