CH 2 Cl 2 and crystallized under aerobic conditions. The complexes were characterized by elemental analysis, IR, 1 H, 31 P NMR spectra and also by X-ray crystallography. The absence of significant coordination chemical shifts in the 31 P NMR spectra indicates the presence of formal negative charge on mercury. The single crystal X-ray structures confirm the presence of Hg–P bond and also reveal a distorted
摘要methanol盐,[PPh 2 CH 2 PPh 2 CH 2 C(O)Ph] Br与Hg(II)卤化物在
甲醇中的反应形成两性离子产物,其组成为[HgCl 2(Br)(P Ph 2 CH 2) PPh 2 CH 2 C(O)Ph)](2),[HgBr 3(P Ph 2 CH 2 PPh 2 CH 2 C(O)Ph)](3),[HgBr 2(I)(P Ph 2 CH 2 PPh 2 CH 2 C(O)Ph)](4)。当用HgCl 2处理叶立德Ph 2 PCH 2 PPh 2 CHC(O)Ph时,得到组成为[HgCl 3(P Ph 2 CH 2 PPh 2 CHh C(O)Ph)]的产物。在CH 2 Cl 2中溶解并在有氧条件下结晶。通过元素分析,IR,1 H,31 P NMR光谱以及X射线晶体学对复合物进行表征。31 P NMR光谱中没有明显的配位
化学位移,表明
汞上存在形式上的负电荷。