N. Goldberg et al., THE GAS-PHASE GENERATION AND CHARACTERIZATION OF BUTATRIENYLIDENE H2CCCC - BY NEUTRALIZATION-REIONIZATION MASS-SPECTROMETRY, Chemical physics letters, 213(5-6), 1993, pp. 593-596
Experiments are reported on the successful ps-phase generation of buta
trienylidene H2C-C-C=C: using the technique of neutralization-reioniza
tion mass spectrometry.