12.550
#
|
C2H2NO NC-CH2-O*
|
56.04342
|
175.619
|
181.426
|
±8.
|
61.512
|
281.028
|
13.444
|
#
|
C2H2NO2 NC-CH2-O-O*
|
72.04282
|
177.987
|
185.371
|
±8.
|
74.150
|
312.514
|
16.207
|
#
|
1,2-C2H2(NO2)2 trans
|
118.04896
|
40.953
|
56.131
|
±8.
|
108.234
|
360.962
|
21.428
|
#
|
CH2CO Ketene singlet
|
42.03668
|
-48.579
|
-45.460
|
±0.15d
|
51.740
|
251.442
|
11.796
|
†
|
CH2CO Ketene triplet
|
42.03668
|
179.5d
|
182.6d
|
±1.3d
|
44.014
|
253.826
|
10.608
|
#
|
CH2CO+ c
|
42.03613
|
885.29
|
882.19
|
±0.15d
|
51.239
|
248.303
|
11.814
|
#
|
CH2CO- c
|
42.0372
|
-23.9d
|
-14.7d
|
±2.4d
|
|
|
|
X
|
HCCOH ETHYNOL
|
42.03668
|
93.3
|
95.408
|
±1.4d
|
57.592
|
249.544
|
12.810
|
#
|
HCCOH+ c
|
42.03613
|
1067.0
|
1063.22
|
±2.6d
|
55.952
|
291.819
|
12.495
|
#
|
(CH=CH)O Oxirene singlet
|
42.03668
|
275.93
|
276.6d
|
±3.1d
|
54.213
|
245.56
|
11.925
|
#
|
(CH=CH)O Oxirene triplet
|
42.03668
|
387.7d
|
391.9d
|
±2.8d
|
44.014
|
248.063
|
10.608
|
#
|
O(CH=CH)+ Oxirene cationd
|
42.03613
|
1112.34
|
1109.7d
|
±5.3d
|
48.719
|
247.073
|
11.188
|
#
|
C2H2O2 HOCH=C=O
|
58.03608
|
-155.16
|
-149.807
|
±8.
|
61.975
|
288.151
|
13.902
|
#
|
C2H2O2 HOC≡COH Ethyndiol
|
58.03608
|
-27.953
|
-24.487
|
±8.
|
69.504
|
325.406
|
15.789
|
#
|
C2H2O2 trans & cis GLYOXAL
|
58.03608
|
-212.08
|
-206.51
|
±0.6d
|
60.409
|
272.483
|
13.682
|
†
|
C2H2O2 cis GLYOXAL
|
58.03668
|
-193.86d
|
-188.42d
|
±0.73d
|
|
|
|
X
|
C2H2O2 Oxiranone
|
58.03608
|
-177.92
|
-170.37
|
±8.
|
53.635
|
263.960
|
11.713
|
#
|
C2H2O3 Glioxalic/Glioxylyc acid
O=COH-CH=O
|
74.03548
|
-477.56
|
-468.578
|
±8.
|
70.634
|
292.297
|
14.601
|
#
|
(COOH)2 Oxalic Acid cristal c
|
90.03488
|
-819.28
|
|
±0.451
|
|
|
|
X
|
C2H2O4 Oxalic Acid
|
90.03488
|
-721.37
|
-710.756
|
±2.1
|
86.178
|
320.649
|
17.322
|
#
|
C2H2S HC≡CSH Ethynethio
|
58.10328
|
257.764
|
259.376
|
±8.
|
60.982
|
259.376
|
13.375
|
#
|
C2H2S3 S=CH-S-CH=S
|
122.23528
|
234.551
|
240.230
|
±8
|
85.859
|
330.750
|
18.132
|
#
|
C2H3 VINYL RADICAL
|
27.04522
|
296.580
|
300.867
|
±0.45d
|
42.071
|
233.663
|
10.522
|
†#
|
C2H3+ Vinylium Ion
|
27.04467
|
1122.34
|
1119.2
|
±0.67d
|
50.714
|
225.350
|
11.780
|
#
|
C2H3-
|
27.04577
|
226.583
|
237.256
|
±1.00
|
40.011
|
227.870
|
10.334
|
#
|
C2H3 CH3C doublet Ethylidyne
|
27.04522
|
508.63
|
512.743
|
±1.31
|
42.923
|
227.225
|
10.696
|
#
|
C2H3 CH3C quartet Ethylidyne
|
27.04522
|
637.5d
|
642.0d
|
±2.3d
|
38.876
|
231.294
|
10.235
|
#
|
C2H3+ CH3C+ cation
|
27.04467
|
1332.93
|
1329.88
|
±2.8d
|
48.451
|
225.885
|
11.661
|
#
|
C2H3- CH3C- anion
|
27.04577
|
448.65
|
458.95
|
±2.8d
|
42.996
|
221.440
|
10.706
|
#
|
C2H3Br Bromoethylene <~>
|
106.94922
|
74.070
|
89.049
|
±0.68d
|
54.824
|
275.474
|
12.090
|
#
|
C2H3BrO2 Bromoacetic Acid
|
138.94802
|
-383.5
|
-364.61
|
±3.1
|
80.542
|
337.015
|
16.862
|
†#
|
CH3CBr3 1,1,1-Tribromoethane
|
266.75722
|
3.18
|
34.718
|
±8.
|
97.982
|
355.210
|
20.051
|
#
|
C2H3CL Vinyl Chloride
|
62.49792
|
22.1
|
29.68
|
±1.02d
|
53.681
|
264.024
|
11.820
|
#
|
CH3C(O)Cl liq Acetyl Chloride
|
78.49732
|
-272.69d
|
|
±0.33d
|
|
|
|
X
|
CH3C(O)CL Acetyl Chloridel
|
78.49732
|
-241.46
|
-232.448
|
±033d
|
66.868
|
289.950
|
14.728
|
#
|
C2H3CLO2 Chloroacetic Acid
|
94.49672
|
-427.6
|
-416.0
|
±1.0
|
78.839
|
325.918
|
16.514
|
#
|
C2H3CL3 CH3-CCL3
|
133.40332
|
-144.6
|
-133.98
|
±2.0
|
92.410
|
320.413
|
18.025
|
#
|
C2H3F Vinyl Fluoride <~>
|
46.04362
|
-140.1
|
-134.7d
|
±2.5
|
50.407
|
252.674
|
11.336
|
#
|
C2H3F2 <~>
|
65.04203
|
-302.50
|
-293.172
|
|
67.256
|
288.291
|
14.304
|
#
|
CH3CF3 FC-143A <~>
|
84.04043
|
-755.66
|
-742.91
|
±1.0
|
78.074
|
287.652
|
15.298
|
#
|
CH3CD3 1,1,1-Ethane-D3
|
33.08753
|
-107.57
|
-92.313
|
±3.3
|
57.385
|
241.997
|
12.406
|
#
|
C2H3I IodoEthylene <~>
|
153.94969
|
130.56
|
139.6
|
±1.12
|
56.071
|
299.640
|
12.368
|
#
|
C2H3N CH3CN Methylcyanide
|
41.05196
|
74.04
|
81.09
|
±0.37
|
52.249
|
243.267
|
12.094
|
#
|
C2H3N CH3NC Methylcyanate
|
41.05196
|
163.5
|
169.982
|
±7.2
|
52.947
|
246.658
|
12.660
|
#
|
C2H3N cy(-CH=CH-NH-)1H aziridin
|
41.05196
|
377.677
|
385.257
|
±8.
|
52.533
|
249.962
|
11.564
|
#
|
C2H3N cy(-CH2CH=N-)2H aziridin
|
41.05196
|
293.906
|
282.278
|
±8.
|
45.962
|
245.879
|
10.779
|
#
|
C2H3NO NCCH2OH
|
57.05136
|
-49.710
|
-39.971
|
±8.
|
64.965
|
280.796
|
13.745
|
#
|
C2H3NO2 NCCH2-O-OH
|
73.05136
|
29.476
|
39.641
|
±8.
|
82.503
|
323.081
|
17.659
|
#
|
C2H3NO2 Nitroethylene
|
73.05076
|
29.518
|
42.235
|
±8.0
|
73.68
|
300.503
|
15.107
|
#
|
C2H3NO4 CH3C(O)-O-NO2
|
105.04956
|
-303.65
|
-287.915
|
±8.0
|
101.794
|
351.943
|
20.765
|
#
|
C2H3NO5 CH3C(O)-OO-NO2
|
121.04896
|
-254.64
|
-237.021
|
±8.0
|
116.800
|
373.968
|
23.223
|
#
|
C2H3NS HS-CH2-CN
|
73.11796
|
130.461
|
138.941
|
±8.
|
72.659
|
303.105
|
15.076
|
#
|
C2H3ClN2 3 Me-3-ChloroDiazirinef
|
90.51140
|
218.f
|
230.287
|
±40.
|
79.946
|
303.405
|
15.782
|
#
|
C2H3N3 Cy 1-H-1,2,4-Triazine
|
69.06544
|
806.25
|
822.226
|
±0.8
|
58.488
|
270.231
|
11.845
|
#
|
1,1,1-C2H3(NO2)3 cr CH3C(NO2)3
|
|
-112.97
|
|
±0.8.4
|
|
|
|
X
|
C2H3O (CH3CO) RADICAL<~>
|
43.04462
|
-10.3
|
-3.6
|
±0.41d
|
50.785
|
267.448
|
12.385
|
#
|
C2H3O+ (CH3CO+) cation
|
43.04471
|
665.789
|
666.3d
|
±1.1
|
52.589
|
243.392
|
11.977
|
#
|
C2H3O-c (CH3CO-) anion
|
43.04462
|
-55.6
|
-43.8d
|
±1.9
|
57.121
|
258.942
|
12.590
|
#
|
C2H3O (CH2=CHO*) Radical
|
43.04462
|
12.753
|
20.189
|
±8.
|
52.398
|
258.818
|
11.713
|
#
|
OH3C2 (*CH2CHO) RAD
|
43.04462
|
12.753
|
19.833
|
