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All results from a given calculation for C5H8 (Bicyclo[1.1.1]pentane)

using model chemistry: CCSD/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at CCSD/aug-cc-pVDZ
 hartrees
Energy at 0K-194.700641
Energy at 298.15K 
HF Energy-193.923857
Nuclear repulsion energy177.979257
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 CCSD/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1' 3137 3022 0.00      
2 A1' 3066 2954 0.00      
3 A1' 1552 1495 0.00      
4 A1' 1133 1092 0.00      
5 A1' 921 887 0.00      
6 A1" 999 962 0.00      
7 A2' 3125 3011 0.00      
8 A2' 949 914 0.00      
9 A2" 3131 3016 119.07      
10 A2" 1260 1214 29.01      
11 A2" 853 821 4.12      
12 E' 3132 3017 68.15      
12 E' 3132 3017 68.15      
13 E' 3060 2948 79.84      
13 E' 3060 2948 79.84      
14 E' 1502 1447 0.12      
14 E' 1502 1447 0.12      
15 E' 1267 1220 1.36      
15 E' 1267 1220 1.36      
16 E' 1113 1072 0.61      
16 E' 1113 1072 0.61      
17 E' 909 876 0.41      
17 E' 909 876 0.41      
18 E' 541 521 0.09      
18 E' 541 521 0.09      
19 E" 1211 1166 0.00      
19 E" 1211 1166 0.00      
20 E" 1155 1112 0.00      
20 E" 1155 1112 0.00      
21 E" 1028 991 0.00      
21 E" 1028 991 0.00      
22 E" 798 768 0.00      
22 E" 798 768 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25776.3 cm-1
Scaled (by 0.9634) Zero Point Vibrational Energy (zpe) 24832.9 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 CCSD/aug-cc-pVDZ
ABC
0.23706 0.23706 0.20555

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVDZ

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.949
C2 0.000 1.246 0.000
C3 1.079 -0.623 0.000
C4 -1.079 -0.623 0.000
C5 0.000 0.000 -0.949
H6 0.000 0.000 2.050
H7 0.000 0.000 -2.050
H8 0.913 1.865 0.000
H9 -0.913 1.865 0.000
H10 1.159 -1.723 0.000
H11 2.072 -0.142 0.000
H12 -2.072 -0.142 0.000
H13 -1.159 -1.723 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.56691.56691.56691.89901.10022.99922.28362.28362.28362.28362.28362.2836
C21.56692.15892.15891.56692.39892.39891.10291.10293.18792.49432.49433.1879
C31.56692.15892.15891.56692.39892.39892.49433.18791.10291.10293.18792.4943
C41.56692.15892.15891.56692.39892.39893.18792.49432.49433.18791.10291.1029
C51.89901.56691.56691.56692.99921.10022.28362.28362.28362.28362.28362.2836
H61.10022.39892.39892.39892.99924.09942.91802.91802.91802.91802.91802.9180
H72.99922.39892.39892.39891.10024.09942.91802.91802.91802.91802.91802.9180
H82.28361.10292.49433.18792.28362.91802.91801.82553.59722.31833.59724.1439
H92.28361.10293.18792.49432.28362.91802.91801.82554.14393.59722.31833.5972
H102.28363.18791.10292.49432.28362.91802.91803.59724.14391.82553.59722.3183
H112.28362.49431.10293.18792.28362.91802.91802.31833.59721.82554.14393.5972
H122.28362.49433.18791.10292.28362.91802.91803.59722.31833.59724.14391.8255
H132.28363.18792.49431.10292.28362.91802.91804.14393.59722.31833.59721.8255

picture of Bicyclo[1.1.1]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C5 74.597 C1 C2 H8 116.519
C1 C2 H9 116.519 C1 C3 C5 74.597
C1 C3 H10 116.519 C1 C3 H11 116.519
C1 C4 C5 74.597 C1 C4 H12 116.519
C1 C4 H13 116.519 C2 C1 C3 87.089
C2 C1 C4 87.089 C2 C1 H6 127.298
C2 C5 C3 87.089 C2 C5 C4 87.089
C2 C5 H7 127.298 C3 C1 C4 87.089
C3 C1 H6 127.298 C3 C5 C4 87.089
C3 C5 H7 127.298 C4 C1 H6 127.298
C4 C5 H7 127.298 C5 C2 H8 116.519
C5 C2 H9 116.519 C5 C3 H10 116.519
C5 C3 H11 116.519 C5 C4 H12 116.519
C5 C4 H13 116.519 H8 C2 H9 111.711
H10 C3 H11 111.711 H12 C4 H13 111.711
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability