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

using model chemistry: B2PLYP=FULL/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 B2PLYP=FULL/6-311G*
 hartrees
Energy at 0K-195.086672
Energy at 298.15K 
HF Energy-194.830247
Nuclear repulsion energy179.356020
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 B2PLYP=FULL/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' 3122 3122 0.00      
2 A1' 3068 3068 0.00      
3 A1' 1579 1579 0.00      
4 A1' 1138 1138 0.00      
5 A1' 919 919 0.00      
6 A1" 1011 1011 0.00      
7 A2' 3125 3125 0.00      
8 A2' 979 979 0.00      
9 A2" 3116 3116 149.15      
10 A2" 1264 1264 42.93      
11 A2" 856 856 6.08      
12 E' 3131 3131 80.89      
12 E' 3131 3131 80.90      
13 E' 3062 3062 86.91      
13 E' 3062 3062 86.91      
14 E' 1528 1528 0.38      
14 E' 1528 1528 0.38      
15 E' 1268 1268 2.49      
15 E' 1268 1268 2.49      
16 E' 1129 1129 0.14      
16 E' 1129 1129 0.13      
17 E' 911 911 0.57      
17 E' 911 911 0.57      
18 E' 552 552 0.26      
18 E' 552 552 0.26      
19 E" 1221 1221 0.00      
19 E" 1221 1221 0.00      
20 E" 1157 1157 0.00      
20 E" 1157 1157 0.00      
21 E" 1035 1035 0.00      
21 E" 1035 1035 0.00      
22 E" 793 793 0.00      
22 E" 793 793 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25874.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25874.1 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 B2PLYP=FULL/6-311G*
ABC
0.24078 0.24078 0.20834

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-311G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.941
C2 0.000 1.238 0.000
C3 1.072 -0.619 0.000
C4 -1.072 -0.619 0.000
C5 0.000 0.000 -0.941
H6 0.000 0.000 2.032
H7 0.000 0.000 -2.032
H8 0.903 1.854 0.000
H9 -0.903 1.854 0.000
H10 1.154 -1.709 0.000
H11 2.057 -0.145 0.000
H12 -2.057 -0.145 0.000
H13 -1.154 -1.709 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55511.55511.55511.88131.09122.97252.26642.26642.26642.26642.26642.2664
C21.55512.14482.14481.55512.37942.37941.09261.09263.16492.47882.47883.1649
C31.55512.14482.14481.55512.37942.37942.47883.16491.09261.09263.16492.4788
C41.55512.14482.14481.55512.37942.37943.16492.47882.47883.16491.09261.0926
C51.88131.55511.55511.55512.97251.09122.26642.26642.26642.26642.26642.2664
H61.09122.37942.37942.37942.97254.06372.89482.89482.89482.89482.89482.8948
H72.97252.37942.37942.37941.09124.06372.89482.89482.89482.89482.89482.8948
H82.26641.09262.47883.16492.26642.89482.89481.80543.57142.30833.57144.1136
H92.26641.09263.16492.47882.26642.89482.89481.80544.11363.57142.30833.5714
H102.26643.16491.09262.47882.26642.89482.89483.57144.11361.80543.57142.3083
H112.26642.47881.09263.16492.26642.89482.89482.30833.57141.80544.11363.5714
H122.26642.47883.16491.09262.26642.89482.89483.57142.30833.57144.11361.8054
H132.26643.16492.47881.09262.26642.89482.89484.11363.57142.30833.57141.8054

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 74.441 C1 C2 H8 116.656
C1 C2 H9 116.656 C1 C3 C5 74.441
C1 C3 H10 116.656 C1 C3 H11 116.656
C1 C4 C5 74.441 C1 C4 H12 116.656
C1 C4 H13 116.656 C2 C1 C3 87.201
C2 C1 C4 87.201 C2 C1 H6 127.220
C2 C5 C3 87.201 C2 C5 C4 87.201
C2 C5 H7 127.220 C3 C1 C4 87.201
C3 C1 H6 127.220 C3 C5 C4 87.201
C3 C5 H7 127.220 C4 C1 H6 127.220
C4 C5 H7 127.220 C5 C2 H8 116.656
C5 C2 H9 116.656 C5 C3 H10 116.656
C5 C3 H11 116.656 C5 C4 H12 116.656
C5 C4 H13 116.656 H8 C2 H9 111.420
H10 C3 H11 111.420 H12 C4 H13 111.420
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability