Synthesis, Characterization, Theoretical Studies, and Antimicrobial/Antitumor Potencies of Salen and Salen/Imidazole Complexes of Co (II), Ni (II), Cu (II), Cd (II), Al (III) and La (III)

2020 ◽  
Vol 34 (11) ◽  
Author(s):  
Ehab M. Abdalla ◽  
Laila H. Abdel Rahman ◽  
Antar A. Abdelhamid ◽  
Mohamed R. Shehata ◽  
Asma A. Alothman ◽  
...  
Keyword(s):  
Theoretical Studies ◽  
Imidazole Complexes

Theoretical studies for scanning tunneling microscopy

1984 ◽  
Vol 127 (1-3) ◽  
pp. 137-142 ◽  
Author(s):  
N GARCIA ◽  
F FLORES
Keyword(s):  
Scanning Tunneling Microscopy ◽  
Scanning Tunneling ◽  
Theoretical Studies ◽  
Tunneling Microscopy

Review of Psychoanalysis and the Nuclear Threat: Clinical and Theoretical Studies.

1990 ◽  
Vol 35 (2) ◽  
pp. 185-185
Author(s):  
Robert R. Holt
Keyword(s):  
Theoretical Studies ◽  
Nuclear Threat

Theoretical studies of the ferroelectric transition

2009 ◽  
Vol 179 (6) ◽  
pp. 639 ◽  
Author(s):  
Evgenii G. Maksimov
Keyword(s):  
Theoretical Studies ◽  
Ferroelectric Transition

THEORETICAL STUDIES OF IONIZATION OF ORBITALLY POLARIZED ATOMS BY ELECTRON IMPACT WITH 3-D IMAGING OF THE RESULTS

2007 ◽  
Vol 21 (0) ◽  
pp. 126-134
Author(s):  
И. Ю. Юрова ◽  
И. Д. Бориспольский
Keyword(s):  
Electron Impact ◽  
Theoretical Studies ◽  
Polarized Atoms

The Stabilizing Effect of Pre-Equilibria: A Trifluoromethyl Complex as CF2 Reservoir in Catalytic Olefin Difluorocarbenation

2020 ◽  
Author(s):  
Thomas Louis-Goff ◽  
Huu Vinh Trinh ◽  
Eileen Chen ◽  
Arnold L. Rheingold ◽  
Christian Ehm ◽  
...  
Keyword(s):  
High Selectivity ◽  
Side Reactions ◽  
Theoretical Studies ◽  
Attractive Feature ◽  
Catalyst Recovery ◽  
Wide Range ◽  
Stabilizing Effect ◽  
Experimental And Theoretical Studies

A new, efficient, catalytic difluorocarbenation of olefins to give 1,1-difluorocyclopropanes is presented. The catalyst, an organobismuth complex, uses TMSCF<sub>3</sub> as a stoichiometric difluorocarbene source. We demonstrate both the viability and robustness of this reaction over a wide range of alkenes and alkynes, including electron-poor alkenes, to generate the corresponding 1,1-difluorocyclopropanes and 1,1-difluorocyclopropenes. Ease of catalyst recovery from the reaction mixture is another attractive feature of this method. In depth experimental and theoretical studies showed that the key difluorocarbene-generating step proceeds through a bismuth non-redox synchronous mechanism generating a highly reactive free CF<sub>2</sub> in an endergonic pre-equilibrium. It is the reversibility when generating the difluorocarbene that accounts for the high selectivity, while minimizing CF<sub>2</sub>-recombination side-reactions.

Sign in / Sign up

Export Citation Format

Share Document