scholarly journals Geminate Recombination versus Cage Escape in the Reductive Quenching of a Re(I) Carbonyl Complex on Mesoporous ZrO2

2019 ◽  
Vol 123 (32) ◽  
pp. 19952-19961 ◽  
Author(s):  
Kerstin Oppelt ◽  
Ricardo Fernández-Terán ◽  
Rolf Pfister ◽  
Peter Hamm
Keyword(s):  
Carbonyl Complex ◽  
Geminate Recombination

Carbon Chain Growth by Sequential Reactions of CO and CO2 with a Transition Metal Carbonyl Complex

2018 ◽  
Author(s):  
Richard Kong ◽  
Mark Crimmin
Keyword(s):  
Transition Metal ◽  
Metal Carbonyl ◽  
Carbon Chain ◽  
Chain Growth ◽  
Carbonyl Complex ◽  
Fischer Tropsch ◽  
Carbon Chains ◽  
Sequential Coupling ◽  
Energy Economy ◽  
Sequential Reactions

<i>The formation of carbon chains by the coupling of COx (X = 1 or 2) units on transition metals is a fundamental step relevant to Fischer-Tropsch catalysis. Fischer-Tropsch catalysis produces energy dense liquid hydrocarbons from synthesis gas (CO and H2) and has been a mainstay of the energy economy since its discovery nearly a century ago. Despite detailed studies aimed at elucidating the steps of catalysis, experimental evidence for chain growth (Cn to Cn+1 ; n > 2) from the reaction of CO with metal complexes is unprecedented. In this paper, we show that carbon chains can be grown from sequential reactions of CO or CO2 with a transition metal carbonyl complex. By exploiting the cooperative effect of transition and main group metals, we document the first example of chain propagation from sequential coupling of CO units (C1 to C3 to C4), along with the first example of incorporation of CO2 into the growing carbon chain.</i><br>

Non-geminate Recombination Limits Fill Factor in Polymer:ITIC Bulk Heterojunction Solar Cells

2019 ◽  
Author(s):  
Jafar Khan ◽  
Yuliar Firdaus ◽  
Federico Cruciani ◽  
Shengjian Liu ◽  
Denis Andrienko ◽  
...  
Keyword(s):  
Solar Cells ◽  
Fill Factor ◽  
Bulk Heterojunction ◽  
Geminate Recombination ◽  
Heterojunction Solar Cells ◽  
Bulk Heterojunction Solar Cells

scholarly journals The influence of chemical parameters on the in-situ metal carbonyl complex formation studied with the fast on-line reaction apparatus (FORA)

2021 ◽  
Vol 109 (4) ◽  
pp. 243-260 ◽  
Author(s):  
Yves Wittwer ◽  
Robert Eichler ◽  
Dominik Herrmann ◽  
Andreas Türler
Keyword(s):  
Metal Carbonyl ◽  
Ambient Air ◽  
Single Atom ◽  
Carbonyl Complex ◽  
Carbonyl Complexes ◽  
On Line ◽  
Carrier Gases ◽  
And Performance ◽  
Atom Chemistry

Abstract A new setup named Fast On-line Reaction Apparatus (FORA) is presented which allows for the efficient investigation and optimization of metal carbonyl complex (MCC) formation reactions under various reaction conditions. The setup contains a 252Cf-source producing short-lived Mo, Tc, Ru and Rh isotopes at a rate of a few atoms per second by its 3% spontaneous fission decay branch. Those atoms are transformed within FORA in-situ into volatile metal carbonyl complexes (MCCs) by using CO-containing carrier gases. Here, the design, operation and performance of FORA is discussed, revealing it as a suitable setup for performing single-atom chemistry studies. The influence of various gas-additives, such as CO2, CH4, H2, Ar, O2, H2O and ambient air, on the formation and transport of MCCs was investigated. O2, H2O and air were found to harm the formation and transport of MCCs in FORA, with H2O being the most severe. An exception is Tc, for which about 130 ppmv of H2O caused an increased production and transport of volatile compounds. The other gas-additives were not influencing the formation and transport efficiency of MCCs. Using an older setup called Miss Piggy based on a similar working principle as FORA, it was additionally investigated if gas-additives are mostly affecting the formation or only the transport stability of MCCs. It was found that mostly formation is impacted, as MCCs appear to be much less sensitive to reacting with gas-additives in comparison to the bare Mo, Tc, Ru and Rh atoms.

Kinetic and diffusional control of geminate recombination

1991 ◽  
Vol 95 (11) ◽  
pp. 8013-8021 ◽  
Author(s):  
A. I. Burshtein ◽  
A. A. Zharikov ◽  
N. V. Shokhirev ◽  
O. B. Spirina ◽  
E. B. Krissinel
Keyword(s):  
Geminate Recombination

scholarly journals Reduction and Rearrangement of a Boron(I) Carbonyl Complex

2020 ◽  
Author(s):  
Maximilian Rang ◽  
Felipe Fantuzzi ◽  
Merle Arrowsmith ◽  
Ivo Krummenacher ◽  
Eva Beck ◽  
...  
Keyword(s):  
Carbonyl Complex

scholarly journals Quaternary structure and geminate recombination in hemoglobin: flow-flash studies on alpha 2CO beta 2 and alpha 2 beta 2CO

1992 ◽  
Vol 63 (3) ◽  
pp. 673-681 ◽  
Author(s):  
D. Bandyopadhyay ◽  
D. Magde ◽  
T.G. Traylor ◽  
V.S. Sharma
Keyword(s):  
Quaternary Structure ◽  
Geminate Recombination ◽  
Beta 2

Competitive geminate quenching and geminate recombination reactions of 1-naphthol

1998 ◽  
Vol 102 (3) ◽  
pp. 504-510 ◽  
Author(s):  
Ehud Pines ◽  
Dimitry Tepper ◽  
Ben-Zion Magnes ◽  
Dina Pines ◽  
Tamar Barak
Keyword(s):  
Geminate Recombination ◽  
Recombination Reactions
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