New steroid dimer derived from cholic acid as receptor for lanthanum(Ⅲ) and calcium(Ⅱ) nitrates  

作　　者：Zdzisaw Paryzek Monika Piasecka Roman Joachimiak Emilia Luks Wanda Radecka-Paryzek 

机构地区：[1]Faculty of Chemistry,Adam Mickiewicz University

出　　处：《Journal of Rare Earths》2010年第S1期56-60,共5页稀土学报（英文版）

基　　金：Project supported by the Polish Ministry of Science and Higher Education (NN204 166 836)

摘　　要：New steroid dimer,ethylene bridged bis-carbamate(3) was synthesized from cholic acid in few steps. Complexes of 3 with lanthanum(Ⅲ) and calcium(Ⅱ) nitrates were prepared in reaction of 3 and appropriate metal salts. They were characterized by spectral data(Infrared(IR) ,ultraviolet-visible(UV/Vis) ,nuclear magnetic resonance(NMR) spectroscopy and fast-atom bombardment(FAB) ,electrospray(ESI) and matrix-assisted laser desorption/ionization mass spectrometry(MALDI-MS)) and elemental analysis. The similarity in complexing behavior of steroidal dimer toward calcium and lanthanum ions was observed.New steroid dimer,ethylene bridged bis-carbamate(3) was synthesized from cholic acid in few steps. Complexes of 3 with lanthanum(Ⅲ) and calcium(Ⅱ) nitrates were prepared in reaction of 3 and appropriate metal salts. They were characterized by spectral data(Infrared(IR) ,ultraviolet-visible(UV/Vis) ,nuclear magnetic resonance(NMR) spectroscopy and fast-atom bombardment(FAB) ,electrospray(ESI) and matrix-assisted laser desorption/ionization mass spectrometry(MALDI-MS)) and elemental analysis. The similarity in complexing behavior of steroidal dimer toward calcium and lanthanum ions was observed.

关 键 词：cholic acid steroid dimer CARBAMATE lanthanum and calcium nitrate COMPLEXES rare earths 

分 类 号：O634[理学—高分子化学]