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本文研究了直接有工业意义的TiCl_4、MgCl_2和酯络合物的晶体结构,并测定了粉末图,红外和紫外光谱。TiCl_4和PhCOOEt(L)生成(TiCl_4·L)_2和TiCl_4·2L两种络合物。MgCl_2与CH_3COOEt和H_3O形成MgCl_2·2CH_3COOEt·2H_2O络合物。这些分子间靠范德瓦力结合成晶体。相应的空间群分别为C_(2h)~5—P2_1/c,C_(2h)~5—P2_1/n和C_(2h)~5—C2/c。利用所得粉末图证实了研磨浸渍法制备催化剂过程中确有(TiCl_4·L)_2生成。对比高效催化剂和Mg络合物的红外光谱,表明催化剂表面络合物的配键与络合物相似。
In this paper, the crystal structures of TiCl 4, MgCl 2 and ester complexes, which are directly industrialized, were studied. The powder patterns, infrared spectra and UV spectra were also measured. TiCl_4 and PhCOOEt (L) generate two complexes (TiCl_4 · L) _2 and TiCl_4 · 2L. MgCl_2 and CH_3COOEt and H_3O form MgCl_2 · 2CH_3COOEt · 2H_2O complex. These molecules rely on van der Waals force into crystals. The corresponding space groups are C_ (2h) ~ 5-P2_1 / c, C_ (2h) ~ 5-P2_1 / n and C_ (2h) ~ 5-C2 / c, respectively. The obtained powder map confirmed that there was indeed (TiCl 4 · L 2) 2 formation during the preparation of the catalyst by the grinding and impregnation method. Comparing the IR spectra of efficient catalysts and Mg complexes, it is shown that the coordination bonds of the catalyst surface complexes are similar to the complexes.