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

using model chemistry: B2PLYP=FULLultrafine/TZVP

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=FULLultrafine/TZVP
 hartrees
Energy at 0K-195.123182
Energy at 298.15K 
HF Energy-194.856065
Nuclear repulsion energy179.625267
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=FULLultrafine/TZVP
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' 3129 3129 0.00      
2 A1' 3072 3072 0.00      
3 A1' 1570 1570 0.00      
4 A1' 1131 1131 0.00      
5 A1' 918 918 0.00      
6 A1" 1007 1007 0.00      
7 A2' 3132 3132 0.00      
8 A2' 977 977 0.00      
9 A2" 3124 3124 127.34      
10 A2" 1261 1261 42.31      
11 A2" 849 849 5.63      
12 E' 3137 3137 68.90      
12 E' 3137 3137 68.90      
13 E' 3067 3067 80.93      
13 E' 3067 3067 80.92      
14 E' 1519 1519 0.27      
14 E' 1519 1519 0.27      
15 E' 1259 1259 2.29      
15 E' 1259 1259 2.29      
16 E' 1125 1125 0.22      
16 E' 1125 1125 0.22      
17 E' 903 903 0.69      
17 E' 903 903 0.70      
18 E' 550 550 0.26      
18 E' 550 550 0.26      
19 E" 1223 1223 0.00      
19 E" 1223 1223 0.00      
20 E" 1148 1148 0.00      
20 E" 1148 1148 0.00      
21 E" 1028 1028 0.00      
21 E" 1028 1028 0.00      
22 E" 786 786 0.00      
22 E" 786 786 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25827.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 25827.9 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 B2PLYP=FULLultrafine/TZVP
ABC
0.24153 0.24153 0.20881

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/TZVP

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.939
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 -0.939
H6 0.000 0.000 2.027
H7 0.000 0.000 -2.027
H8 0.903 1.849 0.000
H9 -0.903 1.849 0.000
H10 1.150 -1.706 0.000
H11 2.053 -0.143 0.000
H12 -2.053 -0.143 0.000
H13 -1.150 -1.706 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55331.55331.55331.87731.08822.96562.26152.26152.26152.26152.26152.2615
C21.55332.14352.14351.55332.37482.37481.09021.09023.16032.47352.47353.1603
C31.55332.14352.14351.55332.37482.37482.47353.16031.09021.09023.16032.4735
C41.55332.14352.14351.55332.37482.37483.16032.47352.47353.16031.09021.0902
C51.87731.55331.55331.55332.96561.08822.26152.26152.26152.26152.26152.2615
H61.08822.37482.37482.37482.96564.05382.88822.88822.88822.88822.88822.8882
H72.96562.37482.37482.37481.08824.05382.88822.88822.88822.88822.88822.8882
H82.26151.09022.47353.16032.26152.88822.88821.80533.56362.29983.56364.1050
H92.26151.09023.16032.47352.26152.88822.88821.80534.10503.56362.29983.5636
H102.26153.16031.09022.47352.26152.88822.88823.56364.10501.80533.56362.2998
H112.26152.47351.09023.16032.26152.88822.88822.29983.56361.80534.10503.5636
H122.26152.47353.16031.09022.26152.88822.88823.56362.29983.56364.10501.8053
H132.26153.16032.47351.09022.26152.88822.88824.10503.56362.29983.56361.8053

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 74.360 C1 C2 H8 116.538
C1 C2 H9 116.538 C1 C3 C5 74.360
C1 C3 H10 116.538 C1 C3 H11 116.538
C1 C4 C5 74.360 C1 C4 H12 116.538
C1 C4 H13 116.538 C2 C1 C3 87.260
C2 C1 C4 87.260 C2 C1 H6 127.180
C2 C5 C3 87.260 C2 C5 C4 87.260
C2 C5 H7 127.180 C3 C1 C4 87.260
C3 C1 H6 127.180 C3 C5 C4 87.260
C3 C5 H7 127.180 C4 C1 H6 127.180
C4 C5 H7 127.180 C5 C2 H8 116.538
C5 C2 H9 116.538 C5 C3 H10 116.538
C5 C3 H11 116.538 C5 C4 H12 116.538
C5 C4 H13 116.538 H8 C2 H9 111.781
H10 C3 H11 111.781 H12 C4 H13 111.781
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability