STUDIES ON MOLECULAR BARIUM PRECURSORS FOR MOCVD - SYNTHESIS AND CHARACTERIZATION OF BARIUM 2,2,6,6-TETRAMETHYL-3,5-HEPTANEDIONATE - X-RAY CRYSTAL-STRUCTURE OF [BA(THD)2.ET2O]2

被引:55
作者
ROSSETTO, G [1 ]
POLO, A [1 ]
BENETOLLO, F [1 ]
PORCHIA, M [1 ]
ZANELLA, P [1 ]
机构
[1] CNR,IST CHIM & TECNOL RADIOELEMENTI,CORSO STATI UNITI 4,I-35020 PADUA,ITALY
关键词
D O I
10.1016/S0277-5387(00)83351-3
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Ba(thd)2 (1) (thd = 2,2,6,6-tetramethyl-3,5-heptanedionate) has been synthesized by reacting Hthd both with barium metal and with barium isopropoxide. Compound 1 readily forms the solvated complex [Ba(thd)2.Et2O]2 (2), which has been isolated and characterized by elemental analysis, mass spectrometry. IR, H-1 and C-13 NMR spectroscopy, and single-crystal X-ray structural studies. Compound 2 is a dimeric species in which the two barium atoms are bridged through four oxygen atoms of two beta-diketonato ligands, while the other ligands, the remaining two thd- and two Et2O ligands are coordinated in a terminal mode.
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页码:979 / 985
页数:7
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