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All results from a given calculation for C5H6 (Bicyclo[2.1.0]pent-2-ene)

using model chemistry: CCD/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 CCD/6-31G
 hartrees
Energy at 0K-193.110344
Energy at 298.15K-193.116643
HF Energy-192.617035
Nuclear repulsion energy157.620208
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 CCD/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 3238 3107 4.72      
2 A 3222 3092 38.54      
3 A 3200 3070 10.20      
4 A 3110 2984 21.74      
5 A 1575 1511 3.25      
6 A 1524 1462 1.37      
7 A 1310 1257 0.42      
8 A 1198 1149 2.33      
9 A 1123 1078 2.24      
10 A 1044 1002 0.81      
11 A 965 926 2.73      
12 A 927 889 3.72      
13 A 802 769 1.29      
14 A 749 719 67.23      
15 A 439 421 5.65      
16 A 3221 3090 11.61      
17 A 3190 3061 10.51      
18 A 1330 1276 18.52      
19 A 1267 1216 0.12      
20 A 1159 1112 2.68      
21 A 1114 1069 9.59      
22 A 1073 1029 0.73      
23 A 926 888 6.69      
24 A 877 842 3.48      
25 A 839 805 0.01      
26 A 780 748 22.11      
27 A 462 444 2.04      

Unscaled Zero Point Vibrational Energy (zpe) 20330.2 cm-1
Scaled (by 0.9595) Zero Point Vibrational Energy (zpe) 19506.9 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 CCD/6-31G
ABC
0.35106 0.21032 0.16799

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.272 1.075 0.684
C2 -0.272 1.075 -0.684
C3 -0.272 -0.472 0.779
C4 -0.272 -0.472 -0.779
C5 0.938 -1.029 0.000
H6 -0.133 1.848 1.439
H7 -0.133 1.848 -1.439
H8 -0.883 -1.084 1.437
H9 -0.883 -1.084 -1.437
H10 1.880 -0.475 0.000
H11 1.053 -2.118 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11
C11.36721.54952.12852.52171.08982.26302.36703.08742.73873.5241
C21.36722.12851.54952.52172.26301.08983.08742.36702.73873.5241
C31.54952.12851.55761.54312.41613.21231.08722.37882.28832.2525
C42.12851.54951.55761.54313.21232.41612.37881.08722.28832.2525
C52.52172.52171.54311.54313.39073.39072.32042.32041.09271.0949
H61.08982.26302.41613.21233.39072.87733.02704.17513.39414.3829
H72.26301.08983.21232.41613.39072.87734.17513.02703.39414.3829
H82.36703.08741.08722.37882.32043.02704.17512.87393.17322.6237
H93.08742.36702.37881.08722.32044.17513.02702.87393.17322.6237
H102.73872.73872.28832.28831.09273.39413.39413.17323.17321.8390
H113.52413.52412.25252.25251.09494.38294.38292.62372.62371.8390

picture of Bicyclo[2.1.0]pent-2-ene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 93.524 C1 C2 H7 133.855
C1 C3 C4 86.476 C1 C3 C5 109.249
C1 C3 H8 126.835 C2 C1 C3 93.524
C2 C1 H6 133.855 C2 C4 C3 86.476
C2 C4 C5 109.249 C2 C4 H9 126.835
C3 C1 H6 131.742 C3 C4 C5 59.688
C3 C4 H9 127.255 C3 C5 C4 60.624
C3 C5 H10 119.512 C3 C5 H11 116.229
C4 C2 H7 131.742 C4 C3 C5 59.688
C4 C3 H8 127.255 C4 C5 H10 119.512
C4 C5 H11 116.229 C5 C3 H8 122.872
C5 C4 H9 122.872 H10 C5 H11 114.413
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability