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研究了取代乙酸配体作为Ｎｉｃｕｌａｎｄ催化剂对乙炔二聚反应性能的影响．结果表明，不同功能结构数目的氨羧配体均使催化剂的选择性提高，乙炔转化率略有下降，巯基乙酸配体的加入，则改变了乙炔二聚反应的机理，得到以乙醛为主的产物．
The effect of substituted acetic acid ligands on the dimerization of acetylene was investigated as a Niculand catalyst. The results showed that the selectivity of the catalysts increased with the number of functionalized carboxyl-carboxyl ligands and the conversion of acetylene slightly decreased. The addition of thioglycolic acid ligand changed the mechanism of acetylene dimerization reaction, Of the product.