1g; tmeda = N,N,N′,N′-tetramethyl-1,2-ethanediamine) has been considered. In the styrene complex (1b) both solution (NMR) and solid state (X-ray) data indicate a significant difference in the Pt–C bond lengths (the longer bond being that involving the olefin carbon atom carrying the phenyl ring). Such a difference increases when X is an electron donor group (EDG, 1c) and decreases when X is an electron
该系列
铂络合物[
氯铂酸(η的2 -CH 2 CH-C 6 H ^ 4 -X)
乙二胺(TME
DA)](CLO 4)(X = H,1B ; 4- OME,1C ; 3-OME,1D ; 4 -CF 3,1E ; 3-CF 3,1F ; 3-NO 2,1克; TME
DA = ñ,ñ,ñ ',ñ ',N'-四甲基-1,2-
乙二胺)已被考虑。在
苯乙烯络合物中(1b)溶液(NMR)和固态(X射线)数据均表明Pt-C键长存在显着差异(较长的键是涉及带有苯环的烯烃碳原子的键)。当X是电子给体基团(EDG,1c)时,这种差异增大,而当X是电子吸收基团(EWG,1d - g)时,这种差异减小。亲核试剂(M
EO的攻击- )与取代的碳(马氏型,M)是迄今为止最有利于在未取代的(的情况下1B)或EDG取代的(1C)的
苯乙烯。EWG(化合物1d - g)的存在使M和抗-M类型的攻击。还对1b,c和1e进行了DFT计