Synthesis, structure, and solid state 13C NMR spectroscopy of a highly substituted tricarbonyl(cyclobutabenzene)chromium(0) derivative
作者:Hans G. Wey、Peter Betz、Ivana Topalović、Holger Butenschön
DOI:10.1016/0022-328x(91)83042-3
日期:1991.7
The synthesis, spectroscopic characterization, and the X-ray crystal structure determination of tricarbonyl-η6-[1,2-bis(ethylendioxy)cyclobutabenzene]chromium(0) are described. The free enthalpy of activation of the Cr(CO)3 rotation has been determined by variable temperature solid state 13C CP-MAS NMR spectroscopy to be ca. 60kJ/mol.
合成,光谱表征,和三羰基-η的X射线晶体结构测定6 - [1,2-双(乙二氧基)cyclobutabenzene]铬(0)中有描述。Cr(CO)3旋转活化的自由焓已通过可变温度固态13 C CP-MAS NMR光谱确定为。60kJ /摩尔。