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

using model chemistry: MP3/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at MP3/Def2TZVPP
 hartrees
Energy at 0K-194.858037
Energy at 298.15K 
HF Energy-193.974403
Nuclear repulsion energy179.766530
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 MP3/Def2TZVPP
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' 3183 3183 0.00      
2 A1' 3108 3108 0.00      
3 A1' 1577 1577 0.00      
4 A1' 1144 1144 0.00      
5 A1' 929 929 0.00      
6 A1" 1022 1022 0.00      
7 A2' 3169 3169 0.00      
8 A2' 975 975 0.00      
9 A2" 3176 3176 103.17      
10 A2" 1281 1281 37.45      
11 A2" 868 868 4.99      
12 E' 3174 3174 56.96      
12 E' 3174 3174 56.96      
13 E' 3103 3103 70.28      
13 E' 3103 3103 70.28      
14 E' 1527 1527 0.53      
14 E' 1527 1527 0.53      
15 E' 1292 1292 1.92      
15 E' 1292 1292 1.92      
16 E' 1135 1135 0.45      
16 E' 1135 1135 0.45      
17 E' 926 926 0.59      
17 E' 926 926 0.59      
18 E' 544 544 0.17      
18 E' 544 544 0.17      
19 E" 1238 1238 0.00      
19 E" 1238 1238 0.00      
20 E" 1173 1173 0.00      
20 E" 1173 1173 0.00      
21 E" 1052 1052 0.00      
21 E" 1052 1052 0.00      
22 E" 811 811 0.00      
22 E" 811 811 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26188.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26188.1 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 MP3/Def2TZVPP
ABC
0.24177 0.24177 0.20927

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/Def2TZVPP

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.940
C2 0.000 1.237 0.000
C3 1.071 -0.618 0.000
C4 -1.071 -0.618 0.000
C5 0.000 0.000 -0.940
H6 0.000 0.000 2.024
H7 0.000 0.000 -2.024
H8 0.902 1.845 0.000
H9 -0.902 1.845 0.000
H10 1.146 -1.703 0.000
H11 2.048 -0.141 0.000
H12 -2.048 -0.141 0.000
H13 -1.146 -1.703 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55321.55321.55321.87941.08432.96372.25812.25812.25812.25812.25812.2581
C21.55322.14202.14201.55322.37192.37191.08771.08773.15572.46872.46873.1557
C31.55322.14202.14201.55322.37192.37192.46873.15571.08771.08773.15572.4687
C41.55322.14202.14201.55322.37192.37193.15572.46872.46873.15571.08771.0877
C51.87941.55321.55321.55322.96371.08432.25812.25812.25812.25812.25812.2581
H61.08432.37192.37192.37192.96374.04802.88312.88312.88312.88312.88312.8831
H72.96372.37192.37192.37191.08434.04802.88312.88312.88312.88312.88312.8831
H82.25811.08772.46873.15572.25812.88312.88311.80393.55642.29293.55644.0968
H92.25811.08773.15572.46872.25812.88312.88311.80394.09683.55642.29293.5564
H102.25813.15571.08772.46872.25812.88312.88313.55644.09681.80393.55642.2929
H112.25812.46871.08773.15572.25812.88312.88312.29293.55641.80394.09683.5564
H122.25812.46873.15571.08772.25812.88312.88313.55642.29293.55644.09681.8039
H132.25813.15572.46871.08772.25812.88312.88314.09683.55642.29293.55641.8039

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 74.458 C1 C2 H8 116.422
C1 C2 H9 116.422 C1 C3 C5 74.458
C1 C3 H10 116.422 C1 C3 H11 116.422
C1 C4 C5 74.458 C1 C4 H12 116.422
C1 C4 H13 116.422 C2 C1 C3 87.189
C2 C1 C4 87.189 C2 C1 H6 127.229
C2 C5 C3 87.189 C2 C5 C4 87.189
C2 C5 H7 127.229 C3 C1 C4 87.189
C3 C1 H6 127.229 C3 C5 C4 87.189
C3 C5 H7 127.229 C4 C1 H6 127.229
C4 C5 H7 127.229 C5 C2 H8 116.422
C5 C2 H9 116.422 C5 C3 H10 116.422
C5 C3 H11 116.422 C5 C4 H12 116.422
C5 C4 H13 116.422 H8 C2 H9 112.045
H10 C3 H11 112.045 H12 C4 H13 112.045
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability