prepared and characterized by IR and NMR spectroscopy. Carbonyl stretching force constants for all compounds have been calculated. Correlations of stretching forces constants of arene chromium tricarbonyl complexes with a series of substituent constants agree well with those reported in earlier studies. Similarly, both the stretching force constants and 31P chemical shifts of arene chromium dicarbonyl
制备了十四个单取代的
芳烃三羰基
铬和
芳烃铬二羰基
三苯基膦配合物,并通过IR和NMR光谱表征。已经计算出所有化合物的羰基拉伸力常数。
芳烃铬三羰基配合物的拉伸力常数与一系列取代基常数的相关性与早期研究报道的一致。类似地,将
芳烃铬二羰基
三苯基膦配合物的拉伸力常数和31 P
化学位移与相同系列的取代基常数进行了比较,发现其趋势类似于先前观察到的趋势。