H2O2+ ions are shown to be formed in ionized O2/CH4 mixtures from the secondary reaction of CH2O+ with O2. By high-resolution mass spectrometric techniques, the peroxide HOOH structure and the H2CO structure of ionized formaldehyde are assigned to the [H2O2](+) ions and the [CH2O](+) reactants, respectively. The [CH4O2](+) intermediate of the reaction between O2(+) and CH4 is characterized as a mixture of the loosely bound [CH4 --O2](+) Complex and the theoretically predicted insertion product CH3OOH+. The CH3OOH+ intermediate, precursor of the most abundant ionic product CH2OOH+, has been characterized for the first time as a long-lived species.
H2O2+ ions in ionized O2/CH4 mixtures: Intermediacy of CH3OOH+ and CH2O+ / DE PETRIS, Giulia; Garzoli, Stefania; Troiani, Anna. - In: CHEMICAL PHYSICS LETTERS. - ISSN 0009-2614. - STAMPA. - 435:4 - 6(2007), pp. 219-223. [10.1016/j.cplett.2006.12.090]
H2O2+ ions in ionized O2/CH4 mixtures: Intermediacy of CH3OOH+ and CH2O+
DE PETRIS, GIULIA;GARZOLI, STEFANIA;TROIANI, Anna
2007
Abstract
H2O2+ ions are shown to be formed in ionized O2/CH4 mixtures from the secondary reaction of CH2O+ with O2. By high-resolution mass spectrometric techniques, the peroxide HOOH structure and the H2CO structure of ionized formaldehyde are assigned to the [H2O2](+) ions and the [CH2O](+) reactants, respectively. The [CH4O2](+) intermediate of the reaction between O2(+) and CH4 is characterized as a mixture of the loosely bound [CH4 --O2](+) Complex and the theoretically predicted insertion product CH3OOH+. The CH3OOH+ intermediate, precursor of the most abundant ionic product CH2OOH+, has been characterized for the first time as a long-lived species.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
