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

using model chemistry: CID/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at CID/6-311G*
 hartrees
Energy at 0K-194.546664
Energy at 298.15K 
HF Energy-193.937492
Nuclear repulsion energy180.187362
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/6-311G*
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' 3219 2991 0.00      
2 A1' 3157 2933 0.00      
3 A1' 1634 1518 0.00      
4 A1' 1187 1102 0.00      
5 A1' 959 891 0.00      
6 A1" 1048 974 0.00      
7 A2' 3212 2984 0.00      
8 A2' 1008 937 0.00      
9 A2" 3211 2984 132.38      
10 A2" 1334 1240 43.41      
11 A2" 901 837 8.42      
12 E' 3219 2991 76.43      
12 E' 3219 2991 76.43      
13 E' 3150 2926 78.83      
13 E' 3150 2926 78.83      
14 E' 1582 1470 0.49      
14 E' 1582 1470 0.49      
15 E' 1332 1238 2.26      
15 E' 1332 1238 2.26      
16 E' 1170 1087 0.15      
16 E' 1170 1087 0.15      
17 E' 955 888 0.86      
17 E' 955 888 0.86      
18 E' 574 534 0.35      
18 E' 574 534 0.35      
19 E" 1277 1186 0.00      
19 E" 1277 1186 0.00      
20 E" 1217 1131 0.00      
20 E" 1217 1131 0.00      
21 E" 1078 1002 0.00      
21 E" 1078 1002 0.00      
22 E" 843 784 0.00      
22 E" 843 784 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26832.5 cm-1
Scaled (by 0.9291) Zero Point Vibrational Energy (zpe) 24930.0 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/6-311G*
ABC
0.24304 0.24304 0.21034

See section I.F.4 to change rotational constant units
Geometric Data calculated at CID/6-311G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.936
C2 0.000 1.232 0.000
C3 1.067 -0.616 0.000
C4 -1.067 -0.616 0.000
C5 0.000 0.000 -0.936
H6 0.000 0.000 2.023
H7 0.000 0.000 -2.023
H8 0.899 1.846 0.000
H9 -0.899 1.846 0.000
H10 1.150 -1.701 0.000
H11 2.048 -0.145 0.000
H12 -2.048 -0.145 0.000
H13 -1.150 -1.701 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.54751.54751.54751.87271.08652.95922.25692.25692.25692.25692.25692.2569
C21.54752.13402.13401.54752.36852.36851.08851.08853.15072.46822.46823.1507
C31.54752.13402.13401.54752.36852.36852.46823.15071.08851.08853.15072.4682
C41.54752.13402.13401.54752.36852.36853.15072.46822.46823.15071.08851.0885
C51.87271.54751.54751.54752.95921.08652.25692.25692.25692.25692.25692.2569
H61.08652.36852.36852.36852.95924.04562.88252.88252.88252.88252.88252.8825
H72.95922.36852.36852.36851.08654.04562.88252.88252.88252.88252.88252.8825
H82.25691.08852.46823.15072.25692.88252.88251.79703.55672.29973.55674.0967
H92.25691.08853.15072.46822.25692.88252.88251.79704.09673.55672.29973.5567
H102.25693.15071.08852.46822.25692.88252.88253.55674.09671.79703.55672.2997
H112.25692.46821.08853.15072.25692.88252.88252.29973.55671.79704.09673.5567
H122.25692.46823.15071.08852.25692.88252.88253.55672.29973.55674.09671.7970
H132.25693.15072.46821.08852.25692.88252.88254.09673.55672.29973.55671.7970

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 74.468 C1 C2 H8 116.705
C1 C2 H9 116.705 C1 C3 C5 74.468
C1 C3 H10 116.705 C1 C3 H11 116.705
C1 C4 C5 74.468 C1 C4 H12 116.705
C1 C4 H13 116.705 C2 C1 C3 87.182
C2 C1 C4 87.182 C2 C1 H6 127.234
C2 C5 C3 87.182 C2 C5 C4 87.182
C2 C5 H7 127.234 C3 C1 C4 87.182
C3 C1 H6 127.234 C3 C5 C4 87.182
C3 C5 H7 127.234 C4 C1 H6 127.234
C4 C5 H7 127.234 C5 C2 H8 116.705
C5 C2 H9 116.705 C5 C3 H10 116.705
C5 C3 H11 116.705 C5 C4 H12 116.705
C5 C4 H13 116.705 H8 C2 H9 111.272
H10 C3 H11 111.272 H12 C4 H13 111.272
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability