3-氧-五亚甲基桥联茚和甲氧乙基茚氯化稀土络合物的FT-拉曼和红外光谱

Characterization of 3 Oxa pentamethylene Bridged Indenyl and Methyloxethyl indenyl Chlorides of Rare Earth Elements

３┐氧┐五亚甲基桥联茚和甲氧乙基茚氯化稀土络合物的ＦＴ┐拉曼和红外光谱聂崇实邹刚钱长涛（中国科学院上海有机化学研究所上海２０００３２）ＦＴ┐ＲａｍａｎａｎｄＩＲＳｐｅｃｔｒｏｓｃｏｐｙＣｈａｒａｃｔｅｒｉｚａｔｉｏｎｏｆ３┐Ｏｘａ┐ｐｅｎｔａｍｅｔｈ...

Abstract The FT Raman and IR spectra of the new compounds 1 17 (see scheme) have been measured. Because of the structure resemblance of the ligand INO and IN’, the spectra of the two kinds of compounds are similar. FT Raman spectra are proved to be effective for characterization of the indenyl ring and metal ring bond vibration mode. The two kinds of compounds show common aromatic ring vibrations at 1608 cm -1 (vw),1525cm -1 (m),1442 cm -1 (m) 1338 cm -1 (s) and 1000 cm -1 (m), and the aromatic=CH out of plane deformation band appears at 740 cm -1 (s). The v(M O) appeares at 445 cm -1 and the v(M ring) band appears at 220 240 cm -1 . The CH 3O group in IN’ Ln complexes show characteristic band at 2840 cm -1 . The IR spectra of these compounds are easy to characterize the polar group in the compounds, such as the v(C O C) at 1056 cm -1 .