15762-07-9Relevant academic research and scientific papers
Ion-Molecule Chemistry of HnC3O+, C3O2+, and C3O+
Petrie, Simon,Bettens, Ryan P. A.,Freeman, Colin G.,McEwan, Murray J.
, p. 13673 - 13676 (1993)
Rate coefficients and product distributions have been measured using a selected ion flow tube for reactions of the ions HnC3O+ (n = 0-3) and C3O2+ with the neutral species H2, CO, N2, O2, CH4, NH3, H2O, C2H2, HCN, and CH3CCH at 300 K.The structures of the ions are discussed, and a survey of relevant enthalpies of formation is presented.
Interaction of acetonitrile with trifluoromethanesulfonic acid: Unexpected formation of a wide variety of structures
Salnikov, George E.,Genaev, Alexander M.,Vasiliev, Vladimir G.,Shubin, Vyacheslav G.
supporting information; experimental part, p. 2282 - 2288 (2012/04/10)
Interaction of acetonitrile with trifluoromethanesulfonic acid has been studied by multinuclear NMR and ESI-MS. It has been found that the interaction results in formation of a great variety of different cations and neutral compounds which is controlled by the ratio of CH3CN to TfOH. In the presence of an excess of the acid (molar ratio 1:8-14) diprotonated N-acetylacetamidine 1 is formed as the major product, which eventually transforms into protonated acetamidine 3 and acetic acid 4. At molar ratio of (1:1-2) diprotonated 2,4-dimethyl-6-methylidene-3H-1,3,5-triazine 12, tautomer of the diprotonated trimethyl-s-triazine 11, becomes the main product at an early stage of the reaction and diprotonated 1-(dimethyl-1,3,5-triazin-2-yl) prop-1-en-2-ol 15 at a later stage. In the case of a large excess of acetonitrile (4-20:1) trication 17 is formed as a result of the interaction between 11 and 12 along with some oligomers [(CH3CN) 3]n (n = 4-12). The Royal Society of Chemistry 2012.
Determination of the Enthalpies of Formation of C6H5CH2O·, p-CH3OC6H4CH2O·, and C6H5CHOH Radicals by Photoionization Mass Spectrometry
Ponomarev,Takhistov,Orlov
, p. 1774 - 1776 (2007/10/03)
The enthalpies of formation (kJ mol-1) of PhCH2O· (125), p-CH3OC6H4CH2O· (-37), and PhCHOH radicals (28) were determined from the energies of appearance of the corresponding fragment ions. The reliability of these data is confirmed by the coincidence of the experimental results with those calculated by the method of isodesmic reactions.
Photodissociation of Alkyl Nitrites in a Molecular Beam. Primary and Secondary Reactions
Effenhauser, C. S.,Felder, P.,Huber, J. Robert
, p. 296 - 302 (2007/10/02)
The translational energy distributions P(ET) for the 248-nm photodissociation products (NO + RO) of isopropyl nitrite and tert-butyl nitrite have been measured with a molecular beam time-of-flight (TOF) apparatus.Previous experiments with methyl nitrite and ethyl nitrite have been repeated with higher resolution.The average photofragment translation energies of these four alkyl nitrites are in good agreement with those predicted by an impulsive model that treats the NO as a rigid fragment and the alkoxy radical as a soft fragment.Hence, and in contrast to the vibrational predissociation on the S1 potential energy surface, S2 dissociation is direct and involves no significant "vibrational-translational" coupling between the reaction coordinate rO-N and the rN=O coordinate.The width of the experimental P(ET) distributions decreases with increasing size of the alkoxy substituent.This result is discussed in terms of an anticorrelation between the internal energies of a fragment pair.Furthermore, the spontaneous secondary dissociation of isopropoxy and tert-butoxy photofragments was observed which yields CH3 radicals and acetaldehyde or acetone, respectively.The unimolecular decay of these alkoxy radicals confirms their relatively high internal energy as deduced from the primary P(ET) and it is shown that this decay occurs on a submicrosecond time scale.
