合成了八种铑的络合催化剂,对它们进行了~1H及~(13)C NMR测定、对谱线进行了标识,找出化学位移的一些规律性,测出了一些偶合常数,确定了它们的结构。 发现一种反位效应络合产物,并非全是反位化合物而是2:1(反:顺)的位置异构体混合物。 当络合配体为β双酮时,在溶液中,该配位化合物结构,特别是CH_3有一定的扭曲,CH_3在~1H及~(13)C NMR中都表现出异常的行为。 Eight rhodium complex catalysts were synthesized and their 1H ~ 13C NMR spectra were determined. The spectra were identified and some regularities of chemical shifts were found. Some coupling constants were determined. Their structure. A trans-site complex was found that was not a 2: 1 (trans: cis) positional isomer mixture but not an anti-trans-compound. When the complexing ligand is β-diketone, the structure of the coordination compound, especially CH 3, is distorted in solution. CH 3 shows abnormal behavior in ~ 1H and ~ (13) C NMR.