Full configuration interaction and multiconfigurational spin density in boron and carbon atoms
作者:Michael V. Pak、Mark S. Gordon
DOI:10.1063/1.1288377
日期:2000.9.8
The reliability of spin polarization method results for atomic spindensities, obtained with several widely used Gaussian basis sets, is examined by comparison with the results of full configuration interaction (FCI) calculations. The spindensities obtained with these basis sets using the spin polarization model and some other methods disagree with the FCI treatment. Since the FCI wave function is
456. The nitration of 2-hydroxy-4 : 6-dimethylquinoline and the preparation of some related compounds
作者:J. L. C. Marais、O. G. Backeberg
DOI:10.1039/jr9500002207
日期:——
Efficient Synthetic Method for β-Enamino Esters Catalyzed by Yb(OTf)3 under Solvent-Free Conditions
作者:Ravi Varala、Sreelatha Nuvula、Srinivas R. Adapa
DOI:10.1071/ch06239
日期:——
esters have been synthesized in moderate to excellent yields by reacting 1,3-dicarbonyl compounds with amines in the presence of catalytic amounts of Yb(OTf)3 (2 mol%). The reaction proceeds smoothly at ambient temperature undersolvent-freeconditions. The catalyst can be recovered and reused.