Gas-phase ion chemistry of BF3/HN3 mixtures: the first observation of [BFnNxHn-1]+ (n=1, 2; x=1, 3) ions

The Journal of Physical Chemistry. B
Federico PepiMarzio Rosi

Abstract

The gas-phase ion chemistry of BF3/HN3 mixtures was investigated by the joint application of mass spectrometric techniques and theoretical methods. The addition of BF2+ to HN3 led to the first observation of [BFnNxHn-1]+ (n=1, 2; x=1, 3) ions in the gas phase. Consistent with collisionally activated dissociation (CAD) mass spectrometric results, theoretical calculations performed at the B3LYP and CCSD(T) levels identified the F2B-NH-N2+, F2B-NH+, FB-N3+, and FBN+ ions as the most stable isomers on the [BFnNxHn-1]+ (n=1, 2; x=1, 3) potential energy surfaces. The F2B-NH+ and FBN+ ions, characterized by a triplet ground state, are formed from F2B-NH-N2+ and FB-N3+ through a spin-forbidden decomposition process. It is worth noting that F2BNH-N2+ is the protonated form of difluoroboron azide, BF2N3, a neutral molecule that has never been experimentally detected. The application of theoretical and experimental methods allowed evaluation of the unknown PA of BF2N3, whose best theoretical estimate 171.2+/-3 kcal mol-1 at the CCSD(T) level is comparable with the experimental one, 170.1+/-3 kcal mol-1. The main interest of all these ionic species is represented by their possible application in boron nitride (BN) physical and chemical vap...Continue Reading

References

Jan 11, 2000·Analytical Chemistry·J W DenaultR G Cooks
Apr 13, 2001·Inorganic Chemistry·W FraenkM Warchhold
Feb 9, 2005·Physical Review Letters·J S LauretL Goux-Capes

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Citations

Apr 26, 2011·The Journal of Chemical Physics·Zhi LvWen-Guang Liu
Dec 17, 2011·European Journal of Mass Spectrometry·Felice Grandinetti
Oct 1, 2014·Chemical Communications : Chem Comm·Anna TroianiGiulia de Petris
Nov 10, 2006·The Journal of Physical Chemistry. a·Federico PepiMarzio Rosi

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