As a result of an extensive delocalization of charge and a unique covalent structure, the cation has, in CH 3 OCH 2 ' e โ ect, the character of an ambident electrophile. This cation can, on the one hand, be considered to be a classical electrophile. On the other hand, it may be considered to be a fac
Gas-phase transuranium chemistry: reactions of actinide ions with alcohols and thiols
โ Scribed by Gibson, John K.
- Publisher
- John Wiley and Sons
- Year
- 1999
- Tongue
- English
- Weight
- 168 KB
- Volume
- 34
- Category
- Article
- ISSN
- 1076-5174
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โฆ Synopsis
The laser ablation with prompt reaction and detection method was employed to provide a survey of some gasphase reactions of actinide (M = U, Np, Pu and Am) and lanthanide (M = Tb and Tm) ions, M Y and MO 1,2 Y , with alcohols, thiols and ethers. Particular attention was given the changing behavior in progressing across the actinide series beyond uranium. With alcohols, ROH, major products included hydroxides and alkoxides, M(OH) 1,2 Y , M(OR) 1,2 Y , MO(OH) Y and MO(OR) Y ; these products are presumed to have resulted from RO-H and R-OH bond cleavage by ablated M Y and MO Y .
๐ SIMILAR VOLUMES
U + ) and polycyclic aromatic hydrocarbons (e.g. pyrene (Py)) and their aza-analogs (e.g. 9-azaphenanthrene (Ap)) as neutral ligands in a laser desorption/ionization Fourier-transform mass spectrometry experiment are measured immediately and over some time period after each laser shot. If both types
Using a relative rate method, rate constants have been measured for the gasphase reactions of the OH radical with 1-hexanol, 1-methoxy-2-propanol, 2-butoxyethanol, 1,2-ethanediol, and 1,2-propanediol at of (in units of ): 296 ฯฎ 2 K, 10 cm molecule s and respectively, where the error 15.8 ฯฎ 3.5; 20.
it. Studies of the collision-induced dissociations of 2 demonstrate that the ยฎrst electronically excited A state of 2 is very long-lived and efยฎciently releases its energy into translational energy when the ion collides with a neutral at low impact energies. Finally, ionยฑmolecule reactions of 2 and