scholarly journals Studies Of Metal-Water Reactions At High Temperatures. Iii. Experimental And Theoretical Studies Of The Zirconium-Water Reaction

Author(s):  
Louis Baker, Jr. ◽  
Louis C. Just
2005 ◽  
Vol 122 (24) ◽  
pp. 244314 ◽  
Author(s):  
Chih-Wei Lu ◽  
Shen-Long Chou ◽  
Yuan-Pern Lee ◽  
Shucheng Xu ◽  
Z. F. Xu ◽  
...  

RSC Advances ◽  
2016 ◽  
Vol 6 (76) ◽  
pp. 72777-72790 ◽  
Author(s):  
Ahmad Allahbakhsh ◽  
Ahmad Reza Bahramian

Microstructures and conductance performance of novolac-derived carbon aerogels, pyrolyzed at different carbonization temperatures, are investigated.


2002 ◽  
Vol 106 (43) ◽  
pp. 10231-10237 ◽  
Author(s):  
Chih-Chang Hsiao ◽  
Yuan-Pern Lee ◽  
Niann S. Wang ◽  
J. H. Wang ◽  
M. C. Lin

2020 ◽  
Author(s):  
Thomas Louis-Goff ◽  
Huu Vinh Trinh ◽  
Eileen Chen ◽  
Arnold L. Rheingold ◽  
Christian Ehm ◽  
...  

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.


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