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All results from a given calculation for C5H8 (Bicyclo[2.1.0]pentane)

using model chemistry: CID/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at CID/6-31G*
 hartrees
Energy at 0K-194.508601
Energy at 298.15K-194.517980
HF Energy-193.926830
Nuclear repulsion energy176.869733
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 CID/6-31G*
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' 3326 3072 25.80      
2 A' 3310 3057 4.84      
3 A' 3241 2994 53.23      
4 A' 3230 2984 16.99      
5 A' 3180 2937 52.24      
6 A' 1608 1485 0.87      
7 A' 1588 1467 2.25      
8 A' 1462 1350 0.54      
9 A' 1340 1238 1.29      
10 A' 1285 1187 0.25      
11 A' 1202 1111 0.41      
12 A' 1098 1014 0.06      
13 A' 1041 962 3.10      
14 A' 1015 937 7.82      
15 A' 969 895 0.04      
16 A' 840 776 7.60      
17 A' 833 770 1.70      
18 A' 439 405 0.56      
19 A" 3301 3049 21.27      
20 A" 3223 2978 0.26      
21 A" 3170 2928 46.51      
22 A" 1579 1458 0.09      
23 A" 1401 1294 5.09      
24 A" 1344 1241 1.00      
25 A" 1295 1196 0.02      
26 A" 1201 1109 0.03      
27 A" 1165 1076 2.83      
28 A" 1134 1048 0.62      
29 A" 1054 974 4.26      
30 A" 993 918 0.13      
31 A" 848 784 15.86      
32 A" 726 671 0.07      
33 A" 279 257 0.37      

Unscaled Zero Point Vibrational Energy (zpe) 26859.3 cm-1
Scaled (by 0.9237) Zero Point Vibrational Energy (zpe) 24809.9 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 CID/6-31G*
ABC
0.30855 0.20572 0.16134

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.245 -0.537 0.758
C2 -0.245 -0.537 -0.758
C3 -0.245 0.988 0.778
C4 -0.245 0.988 -0.778
C5 0.941 -1.036 0.000
H6 -0.794 -1.173 1.437
H7 -0.794 -1.173 -1.437
H8 0.605 1.457 1.274
H9 0.605 1.457 -1.274
H10 -1.161 1.411 1.187
H11 -1.161 1.411 -1.187
H12 1.867 -0.473 0.000
H13 1.077 -2.109 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.51571.52552.16471.49381.08032.35052.22852.97112.19462.90062.24552.1895
C21.51572.16471.52551.49382.35051.08032.97112.22852.90062.19462.24552.1895
C31.52552.16471.55612.47232.32553.14361.09042.27001.08782.20832.68393.4565
C42.16471.52551.55612.47233.14362.32552.27001.09042.20831.08782.68393.4565
C51.49381.49382.47232.47232.25702.25702.81992.81993.43733.43731.08431.0812
H61.08032.35052.32553.14362.25702.87502.98374.02822.62223.70133.10442.5378
H72.35051.08033.14362.32552.25702.87504.02822.98373.70132.62223.10442.5378
H82.22852.97111.09042.27002.81992.98374.02822.54731.76883.02892.63413.8159
H92.97112.22852.27001.09042.81994.02822.98372.54733.02891.76882.63413.8159
H102.19462.90061.08782.20833.43732.62223.70131.76883.02892.37353.75834.3365
H112.90062.19462.20831.08783.43733.70132.62223.02891.76882.37353.75834.3365
H122.24552.24552.68392.68391.08433.10443.10442.63412.63413.75833.75831.8172
H132.18952.18953.45653.45651.08122.53782.53783.81593.81594.33654.33651.8172

picture of Bicyclo[2.1.0]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 90.759 C1 C2 C5 59.514
C1 C2 H7 128.983 C1 C3 C4 89.241
C1 C3 H8 115.841 C1 C3 H10 113.161
C1 C5 C2 60.973 C1 C5 H12 120.314
C1 C5 H13 115.555 C2 C1 C3 90.759
C2 C1 C5 59.514 C2 C1 H6 128.983
C2 C4 C3 89.241 C2 C4 H9 115.841
C2 C4 H11 113.161 C2 C5 H12 120.314
C2 C5 H13 115.555 C3 C1 C5 109.931
C3 C1 H6 125.492 C3 C4 H9 117.031
C3 C4 H11 112.065 C4 C2 C5 109.931
C4 C2 H7 125.492 C4 C3 H8 117.031
C4 C3 H10 112.065 C5 C1 H6 121.686
C5 C2 H7 121.686 H8 C3 H10 108.588
H9 C4 H11 108.588 H12 C5 H13 114.108
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability