Mechanistic insights into dehydrocoupling of amine boranes using dinuclear zirconocene complexes

2021 ◽  
Author(s):  
Kevin Lindenau ◽  
Nora Jannsen ◽  
Mirko Rippke ◽  
Hanan Al Hamwi ◽  
Carmen Selle ◽  
...  
Keyword(s):  
Spectroscopic Monitoring ◽  
Amine Boranes

Catalytic dehydrocoupling of H3B·NMe2H using the in situ system Cp2Zr(Cl)(µ-Me3SiC3SiMe3)Zr(Cl)Cp2 (1)/MeLi was studied as a model for previously reported dehydropolymerisation of H3B·NMeH2. NMR and UV-Vis spectroscopic monitoring of the precatalyst...

scholarly journals In situ spectroscopic monitoring of CO2 reduction at copper oxide electrode

2017 ◽  
Vol 197 ◽  
pp. 517-532 ◽  
Author(s):  
Liying Wang ◽  
Kalyani Gupta ◽  
Josephine B. M. Goodall ◽  
Jawwad A. Darr ◽  
Katherine B. Holt
Keyword(s):  
Infrared Spectroscopy ◽  
Copper Oxide ◽  
Photoelectron Spectroscopy ◽  
Co2 Reduction ◽  
Modified Electrodes ◽  
Starting Material ◽  
Ex Situ ◽  
Spectroscopic Monitoring ◽  
Carbonate Species

Copper oxide modified electrodes were investigated as a function of applied electrode potential using in situ infrared spectroscopy and ex situ Raman and X-ray photoelectron spectroscopy. In deoxygenated KHCO3 electrolyte bicarbonate and carbonate species were found to adsorb to the electrode during reduction and the CuO was reduced to Cu(i) or Cu(0) species. Carbonate was incorporated into the structure and the CuO starting material was not regenerated on cycling to positive potentials. In contrast, in CO2 saturated KHCO3 solution, surface adsorption of bicarbonate and carbonate was not observed and adsorption of a carbonato-species was observed with in situ infrared spectroscopy. This species is believed to be activated, bent CO2. On cycling to negative potentials, larger reduction currents were observed in the presence of CO2; however, less of the charge could be attributed to the reduction of CuO. In the presence of CO2 CuO underwent reduction to Cu2O and potentially Cu, with no incorporation of carbonate. Under these conditions the CuO starting material could be regenerated by cycling to positive potentials.

scholarly journals In-situ spectroscopic monitoring of the ambient pressure hydrogenation of C2 to ethane on Pt(111)

2016 ◽  
Vol 652 ◽  
pp. 142-147 ◽  
Author(s):  
Joel D. Krooswyk ◽  
Christopher M. Kruppe ◽  
Michael Trenary
Keyword(s):  
Ambient Pressure ◽  
Spectroscopic Monitoring

In-situ spectroscopic monitoring of Jatropha oil combustion properties

2014 ◽  
Vol 63 ◽  
pp. 775-778 ◽  
Author(s):  
Nelfa Desmira ◽  
Kitagawa Kuniyuki ◽  
Shigeaki Morita ◽  
Ashwani K. Gupta
Keyword(s):  
Jatropha Oil ◽  
Spectroscopic Monitoring ◽  
Combustion Properties

scholarly journals In situ FTIR spectroscopic monitoring of electrochemically controlled organic reactions in a recycle reactor

2016 ◽  
Vol 1 (1) ◽  
pp. 90-95 ◽  
Author(s):  
Alexander G. O'Brien ◽  
Oana R. Luca ◽  
Phil S. Baran ◽  
Donna G. Blackmond
Keyword(s):  
Continuous Monitoring ◽  
Electrochemical Reactor ◽  
Organic Reactions ◽  
In Situ Ftir ◽  
Reaction Progress ◽  
Spectroscopic Monitoring ◽  
Recycle Reactor

An electrochemical reactor coupled with a recycle loop through a transmission FTIR cell allows continuous monitoring of reaction progress.

In-situ-spectroscopic monitoring for SIC-CVD process control

1999 ◽  
Vol 09 (PR8) ◽  
pp. Pr8-1041-Pr8-1048 ◽  
Author(s):  
K. Brennfleck ◽  
S. Schneweis ◽  
R. Weiss
Keyword(s):  
Process Control ◽  
Spectroscopic Monitoring

Time-Resolved In-Situ Spectroscopic Monitoring of the CVD of Tin Oxide onto a Glass Substrate

2001 ◽  
Vol 7 (1) ◽  
pp. 39-43 ◽  
Author(s):  
R. J. Holdsworth ◽  
P. A. Martin ◽  
D. Raisbeck ◽  
J. Rivero ◽  
H. E. Sanders ◽  
...  
Keyword(s):  
Tin Oxide ◽  
Glass Substrate ◽  
Time Resolved ◽  
Spectroscopic Monitoring
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