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对［μ－ＣＦ＿３ＣＯ＿２）＿２Ｌｎ（μ－ＣＦ＿３ＨＣＯ＿２）Ａｌ（ｉ－Ｂｕ）＿２·ＴＨＦｌ＿２（Ｌｎ＝Ｎｄ，Ｙ）配合物单晶结构的Ｘ－射线分析指出，配合物具有中心对称性，配位中心由两个稀土和两个Ａｌ离子组成，稀土由两个ＴＨＦ和６个ＴＦＡ分子配位形成畸变的三盖三棱柱结构，Ａｌ由两个ＴＦＡＧ和两个ｉ－Ｂｕ配位形成四面体结构。桥连Ａｌ与两个稀土的ＴＦＡ分子的羧基发生歧化加氢，其碳原子由ＳＰ￣２型转变为ＳＰ￣３型．ＮＭＲ研究表明，在ＴＨＦ溶液中，该配合物保持了它在单晶中的配位结构，所不同的是两个ｉ－Ｂｕ在溶液中有两种异构形成，二者间为慢交换过程。
X-ray analysis of the single crystal structure of [μ-CF_3CO_2] _2Ln (μ-CF_3HCO_2) Al (i-Bu) _2 · THFl_2 (Ln = Nd, Y) shows that the complex has center symmetry, It consists of two rare earths and two Al ions. The rare earths are coordinated by two THF and six TFA molecules to form a distorted three-cap triangular prism structure. Al is composed of two TFAGs and two i-Bu complexes to form a tetrahedral structure. Bridged with Al and two rare earth TFA molecules of carboxyl disproportionation hydrogenation, the carbon atoms from SP ~ 2 type into SP ~ 3 type. NMR studies show that the complex maintains its coordination structure in a single crystal in a THF solution, except that two i-Bu are formed in two isomeric forms in solution with a slow exchange between the two .