thermodynamically stable complexes. Additionally, the molecular structures of 1, Pt(Me)2(pype) (2), Pt(Me)2(dppf) (3), Pt(Me)2(diop) (4), Pt(Me)2(dppe) (6), Pt(Me)2(dpmcb) (9), and Pt(Me)2(Et2dppp) (13) have been determined by single-crystal X-ray diffraction. No correlation between the thermochemical results and the structural parameters, e.g, M−P distance (as observed in other systems), is apparent in this
配合物(COD)
PTME的反应焓2(1 ; COD =η 4 -
1,5-环辛二烯)具有广泛系列的二齿膦的(dpype,
DPPF,迪奥普,
DPPE,
DPPB,
DPPP,dpmcb,
DEPE,
DMPE, dcpce)已通过溶液量热法测量。所得配合物
PTMe 2(PP)的相对稳定性由供体和双齿
膦配体的咬合角/位阻性质共同决定。通常,良好的具有较小咬合角的σ供体
配体会产生更热力学稳定的配合物。此外,1,
PT(Me)2(pype)(2),
PT(Me)2(
DPPF)(3),
PT(Me)的分子结构2(diop)(4),
PT(Me)2(
DPPE)(6),
PT(Me)2(dpmcb)(9)和
PT(Me)2(Et 2
DPPP)(13)已确定单晶X射线衍射。在此类络合物中,热
化学结果与结构参数(例如,MP距离(在其他系统中观察到))之间没有相关性。