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All results from a given calculation for C5H8 (Ethenylcyclopropane)

using model chemistry: CBS-Q

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CBS-Q
 hartrees
Energy at 0K-194.877735
Energy at 298.15K-194.871367
HF Energy-193.936525
Nuclear repulsion energy163.460447
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at CBS-Q
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3393 3393 28.40      
2 A' 3384 3384 32.86      
3 A' 3319 3319 12.56      
4 A' 3317 3317 4.32      
5 A' 3301 3301 29.60      
6 A' 3295 3295 4.46      
7 A' 1873 1873 24.91      
8 A' 1654 1654 1.12      
9 A' 1596 1596 0.49      
10 A' 1477 1477 2.32      
11 A' 1428 1428 3.73      
12 A' 1333 1333 1.86      
13 A' 1305 1305 2.72      
14 A' 1176 1176 1.35      
15 A' 1089 1089 3.78      
16 A' 1030 1030 38.35      
17 A' 882 882 1.40      
18 A' 825 825 0.47      
19 A' 473 473 1.38      
20 A' 289 289 1.44      
21 A" 3367 3367 0.18      
22 A" 3289 3289 32.56      
23 A" 1601 1601 0.50      
24 A" 1307 1307 0.50      
25 A" 1242 1242 0.79      
26 A" 1191 1191 3.01      
27 A" 1130 1130 8.62      
28 A" 1039 1039 40.21      
29 A" 1015 1015 20.93      
30 A" 892 892 8.60      
31 A" 735 735 3.94      
32 A" 336 336 0.96      
33 A" 123 123 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 26851.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26851.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at CBS-Q
ABC
0.50221 0.10124 0.09739

See section I.F.4 to change rotational constant units
Geometric Data calculated at CBS-Q

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.388 0.292 0.000
C2 0.254 -1.048 0.000
C3 -0.392 -2.201 0.000
C4 0.254 1.432 0.748
C5 0.254 1.432 -0.748
H6 -1.467 0.272 0.000
H7 1.336 -1.050 0.000
H8 0.133 -3.142 0.000
H9 -1.471 -2.251 0.000
H10 -0.393 2.125 1.263
H11 1.185 1.239 1.258
H12 -0.393 2.125 -1.263
H13 1.185 1.239 -1.258

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.48502.49251.50741.50741.07942.18493.47332.76332.22582.22552.22582.2255
C21.48501.32202.59002.59002.16881.08262.09832.10293.47502.77043.47502.7704
C32.49251.32203.76503.76502.69672.07661.07831.07984.50603.98744.50603.9874
C41.50742.59003.76501.49592.20612.80944.63684.13491.07851.07902.22272.2197
C51.50742.59003.76501.49592.20612.80944.63684.13492.22272.21971.07851.0790
H61.07942.16882.69672.20612.20613.09983.77122.52292.48573.09032.48573.0903
H72.18491.08262.07662.80942.80943.09982.41343.05323.82942.61593.82942.6159
H83.47332.09831.07834.63684.63683.77122.41341.83555.44184.67765.44184.6776
H92.76332.10291.07984.13494.13492.52293.05321.83554.67964.56194.67964.5619
H102.22583.47504.50601.07852.22272.48573.82945.44184.67961.80992.52503.1028
H112.22552.77043.98741.07902.21973.09032.61594.67764.56191.80993.10282.5154
H122.22583.47504.50602.22271.07852.48573.82945.44184.67962.52503.10281.8099
H132.22552.77043.98742.21971.07903.09032.61594.67764.56193.10282.51541.8099

picture of Ethenylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 125.140 C1 C2 H7 115.744
C1 C4 C5 60.251 C1 C4 H10 117.846
C1 C4 H11 117.787 C1 C5 C4 60.251
C1 C5 H12 117.846 C1 C5 H13 117.787
C2 C1 C4 119.886 C2 C1 C5 119.886
C2 C1 H6 114.578 C2 C3 H8 121.569
C2 C3 H9 121.898 C3 C2 H7 119.116
C4 C1 H6 116.060 C4 C5 H12 118.497
C4 C5 H13 118.193 C5 C1 H6 116.060
C5 C4 H10 118.497 C5 C4 H11 118.193
H8 C3 H9 116.533 H10 C4 H11 114.049
H12 C5 H13 114.049
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability