Reactivity of 3- and 4-pyridinylnitrene-n-oxide radical anions

Mass spectrometry studies of nitrene anions

“…For example, PhN – has two possible electronic states; namely, the 2 A 1 ground state with a π 2 σ configuration and a 2 B 2 excited state with a σ 2 π configuration (Figure 4). Although calculations predict the π 2 σ configuration to be favored for PhN – (Koirala et al, 2015; Wijeratne et al, 2009), it does not have to be so for all nitrene anions.…”

“…Furthermore, other radical stabilizing groups are predicted to have an unusually small singlet‐triplet splitting, as seen with 2‐furanylnitrene (Wenthold, 2012). To determine the effects of a radical stabilizing group on PhN – , Koirala et al (2015) investigated the reactivity of 3‐ and 4‐pyridinylnitrene‐ n ‐oxide radical anions, 3PNO – and 4PNO – , respectively, formed by ionization of the corresponding azides in a flowing afterglow ion source.…”

Reactions of metal cluster anions with inorganic and organic molecules in the gas phase

“…The less attention paid to the IMRs of anions is ascribed to two important reasons: first, it was reported that the ratio of anions to cations formed in an ion source is generally low, for example, in an electron impact ion source, the ratio is on the order of 10 −3 ; 46 second, anionic species are typically less reactive than their cationic counterparts in reaction with reductive molecules. 40,47,48 The IMRs of anions previously reported cover monoatomic systems, 17 organic 20,49,50 and inorganic anions without metals, 17,[51][52][53] metal clusters, 5,6,40,[54][55][56][57][58][59] and organometallic species. [60][61][62] The IMRs of the above mentioned anions with organic and inorganic substrates have been partially reviewed.…”