✍ Scribed by Philippe Mourgues; Henri Edouard Audier; Danielle Leblanc; Steen Hammerum
No coin nor oath required. For personal study only.
The bimolecular reaction of 'CH20H2+ with a variety of neutral molecules in the gas phase were studied by Fourier transform ion cyclotron resonance experiments. The distonic ion is found to be considerably more acidic than protonated methanol; bracketing experiments provide a value of 695 8 kJ mol-' for the proton affinity of the conjugate base, the hydrox ymethyl radical. Efficient hydrogen atom abstraction is only observed from neutral species less basic than 'CH,OH. Transfer of CH:' to CS, , CH,I and C,H,F, is observed.
📜 SIMILAR VOLUMES
The hydrogen abstraction reactions of OH radicals with CH₃CH₂CH₂Cl and CH₃CHClCH₃ (R2) have been investigated theoretically by a dual-level direct dynamics method. The optimized geometries and frequencies of the stationary points are calculated at the B3LYP/6-311G(d,p) level. To improve the reaction
By photolyzing (CF,H),CO and (CFH,),CO the hydrogen atom abstraction reactions of CF,H radicals with (CF,H),CO, H, , D, , CH, , C,H, , n-C,H,, and iso-C,H1,, and the reactions of CFH, radicals with (CFH,),CO and n-C,H,, , have been studied. Arrhenius parameters for these reactions are compared with
A comparison of hydride, hydrogen atom, and proton-coupled electron transfer reactions is presented. Herein, hydride and hydrogen atom transfer refer to reactions in which the electrons and protons transfer between the same donor and acceptor, while proton-coupled electron transfer (PCET) refers to
Ethylenediamine (en) solutions of [P 7 M(CO) 3 ] 3± (M = Cr, W) react with weak acids to give [HP 7 M(CO) 3 ] 2± ions where M = Cr (4 a) and W (4 b) in high yields. Competition studies with known acids revealed a pK a range for 4 b in DMSO of 17.9 to 22.6. The [P 7 M(CO) 3 ] 3± complexes also react
The optical spectroscopic properties of 1-naphthol\*B, clusters (B=H20, D20, CH30H, NH3 and piperidine) have been studied in supersonic molecular beams. Proton transfer to the solvent cluster occurs at n> 2 for B~piperidine and n>4 for B=NH,, while no transfer is observed for B = CH30H up to n z 26,