An Ether-Free, Internally Coordinated Dialkylcalcium(II) Complex
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https://figshare.com/articles/dataset/An_Ether_Free_Internally_Coordinated_Dialkylcalcium_II_Complex/2872987
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资源简介：
The alkylpotassium compound KC{SiMe3}2{SiMe2hpp} (hppH = 1,3,4,6,7,8-hexahydro-2H-pyrimido[1,2-a]pyrimidine) reacts with a slurry of CaI2 in toluene to give the internally coordinated dialkylcalcium(II) complex Ca(C{SiMe3}2{SiMe2hpp})2. The molecular structure in the solid state shows short Ca−N and long Ca−C bonds and a wide C−Ca−C angle. The 1H and 13C NMR spectra suggest that the metallacycle is transiently opened in toluene at room temperature.
创建时间：
2009-03-09
