Displacement of the THF solvent molecule from ( η 5-C 5H 5)Mn(CO) 2THF by simple two electron donor ligands: evidence for a dissociative mechanism and determination of the Mn–THF bond strengthTHFDissociative mechanismBond strengthThe reaction between CpMn(CO)THF (Cp= -CH, THF=...
We found that, the polar aprotic, low boiling, high cavitation energy solvent system EtOH–THF is useful for the present sonic reaction [31], [32], [33]. 5. Mechanism The best result was obtained by using 0.8 equivalents (2 mg atom) of atomized sodium, and the use of 0.2 equivalents...
All of these results taken together suggest that the mechanism of reduction of alkyl iodides and ketones by [Sm{N(SiMe3)2}2] has more inner-sphere character than reduction by SmI2 or Sm−(HMPA) complexes. The change in the ET mechanism is attributed to the unique structure of the [Sm...
The use of THF as the solvent is critical for successful reactions. The proposed mechanism of radical initiation involves the photosensitized formation of a triplet sulfonyl nitrene, which abstracts a hydrogen atom from THF to give a tetrahydrofuran- 2-yl radical, which then reacts with the ...
The effect of other alternative catalysts such as metal halides, which have shown better performance than the traditional catalysts such as mineral acids, was also studied. Further, to help us give an insight on the reaction mechanism using different catalysts, we developed a kinetic model ...
Both the concerted mechanism (with a four-center transition state (TS)) and the stepwise one (occurring via a betaine-type zwitterionic intermediate) have been explored, examining the potential energy profiles as well as the free energy ones. The solvent effect in the integral equation formalism-...
Thisresearch aims to elucidate the mechanism controlling the MI transition. Imaedaetal. extended the number of compounds in this family by changing solventmolecules and counter anions and proposed the role of disorder of the solventmolecules in the MI transition.10In a previouspaper,11we extended ...
The metallic sample dissolution rate was estimated as a function of the coordinating solvent nature. The development of the metal surface oxidation was established to lead to a significant increase of surface roughness. This phenomenon can be explained by the fact that different parts of the surface...
Kinetics and mechanism of the cationic polymerization of tetrahydrofuran in solution. I. THF–CCI4 systemPolymerization of THF in CCl4 solvent was initiated with 1,3-dioxolan-2-ylium eations with AsF6, PF6, and SbF6 anions as well as with esters of fluorosulfonic and trifluoromethanesulfonic ...
It was also determined that this reaction resulted in graphene being grafted with the solvent molecules used. In this study, we prepared K-THF-GICs as host materials and then prepared few-layer graphene by adding aldehyde solvents with different alkyl chain lengths; in addition, we investigated ...