p-X-substituted phenylchlorocarbenes (X = NO2, CF3, Cl, H, Me, and MeO) form π-type complexes with trimethoxybenzene in pentane. The carbenes and complexes are in equilibrium, and logarithms of the measured equilibrium constants are well correlated by Hammett σp constants with ρ = 2.48. The carbene complexes are characterized by UV−vis spectroscopy, and computational analysis is afforded by DFT calculations
                                    p -X取代的苯基
氯卡宾(X = NO 2,CF 3,Cl,H,Me和MeO)与
戊烷中的三
甲氧基苯形成π型络合物。卡宾和配合物处于平衡状态,测得的平衡常数的对数与Hammettσp常数(ρ= 2.48)具有很好的相关性。卡宾配合物的特征在于紫外可见光谱,DFT计算提供了计算分析。