Table 1 Observed species generated from bombardment of H3C3H/Ar matrix sample with 200-eV and 2000-eV electrons and their photolytic behaviors.

From: Direct IR Absorption Spectra of Propargyl Cation Isolated in Solid Argon

Species

Observed band positions/cm−1

Ref.

385 nm

160 nm

HC3Ha

547.6, 3266.2 (3262.9)b

25

c

c

H3C3H+

583.2 (581.1), 1243.0

24

CH3

619.9

33

H2C3Ha

686.5, 1061.8, 1935.4, 3028.3, 3310.0

25

HCCHa

737.2, 3285.7 (3287.9), 3293.3

34

C6H4

740.7 (743.7), 1008.7, 1040.9,

35

H2C3H2+a

791.4, 874.4, 1307.3, 2929.0, 3020.8

25

H2CC(H)CH2

800.9, 1179.4, 3018.9

36

H2C3H2a

837.7, 996.2, 1390.6, 1955.3, 1998.4, 3000.1

24

Ar2H+a

903.4

24

C4H6a

910.8, 1016.8, 1382.9

37

H2C3

999.2 (1003.0), 1446.8 (1448.6)

38

HC3a

1824.8 (1832.6), 3238.3

38

H2C3H−a

1856.4

25

Cn

1913.8, 1941.8, 1945.8

 

C3

2039.2 (2034.8)

25

H2C3H+

606.8, 1105.2, 1140.6, 1433.2, 2075.2 (multiplet), 3000.6, 3063.4, 3195.3

TW

  1. aSpecies also observed in experiments on electron bombardment with 200-eV electrons.
  2. bBands in minor matrix sites.
  3. cSymbols indicate band intensity increase (↑), decrease (↓), and no change (—) upon photolysis.