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

using model chemistry: B2PLYP=FULLultrafine/3-21G*

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/3-21G*
 hartrees
Energy at 0K-193.881027
Energy at 298.15K 
HF Energy-193.726503
Nuclear repulsion energy177.003259
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/3-21G*
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' 3197 3197 0.00      
2 A1' 3104 3104 0.00      
3 A1' 1593 1593 0.00      
4 A1' 1121 1121 0.00      
5 A1' 944 944 0.00      
6 A1" 1031 1031 0.00      
7 A2' 3170 3170 0.00      
8 A2' 967 967 0.00      
9 A2" 3186 3186 79.88      
10 A2" 1266 1266 38.74      
11 A2" 816 816 5.62      
12 E' 3177 3177 46.47      
12 E' 3177 3177 46.47      
13 E' 3099 3099 52.47      
13 E' 3099 3099 52.47      
14 E' 1550 1550 0.59      
14 E' 1550 1550 0.59      
15 E' 1267 1267 2.17      
15 E' 1267 1267 2.18      
16 E' 1125 1125 0.10      
16 E' 1125 1125 0.10      
17 E' 887 887 0.95      
17 E' 887 887 0.95      
18 E' 554 554 0.17      
18 E' 554 554 0.17      
19 E" 1259 1259 0.00      
19 E" 1259 1259 0.00      
20 E" 1169 1169 0.00      
20 E" 1169 1169 0.00      
21 E" 1074 1074 0.00      
21 E" 1074 1074 0.00      
22 E" 758 758 0.00      
22 E" 758 758 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26113.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26113.7 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/3-21G*
ABC
0.23352 0.23352 0.20320

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G*

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.963
C2 0.000 1.258 0.000
C3 1.090 -0.629 0.000
C4 -1.090 -0.629 0.000
C5 0.000 0.000 -0.963
H6 0.000 0.000 2.048
H7 0.000 0.000 -2.048
H8 0.909 1.862 0.000
H9 -0.909 1.862 0.000
H10 1.158 -1.718 0.000
H11 2.067 -0.143 0.000
H12 -2.067 -0.143 0.000
H13 -1.158 -1.718 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.58461.58461.58461.92621.08453.01062.28462.28462.28462.28462.28462.2846
C21.58462.17962.17961.58462.40332.40331.09111.09113.19372.49732.49733.1937
C31.58462.17962.17961.58462.40332.40332.49733.19371.09111.09113.19372.4973
C41.58462.17962.17961.58462.40332.40333.19372.49732.49733.19371.09111.0911
C51.92621.58461.58461.58463.01061.08452.28462.28462.28462.28462.28462.2846
H61.08452.40332.40332.40333.01064.09512.91282.91282.91282.91282.91282.9128
H73.01062.40332.40332.40331.08454.09512.91282.91282.91282.91282.91282.9128
H82.28461.09112.49733.19372.28462.91282.91281.81843.58832.31513.58834.1335
H92.28461.09113.19372.49732.28462.91282.91281.81844.13353.58832.31513.5883
H102.28463.19371.09112.49732.28462.91282.91283.58834.13351.81843.58832.3151
H112.28462.49731.09113.19372.28462.91282.91282.31513.58831.81844.13353.5883
H122.28462.49733.19371.09112.28462.91282.91283.58832.31513.58834.13351.8184
H132.28463.19372.49731.09112.28462.91282.91284.13353.58832.31513.58831.8184

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 74.856 C1 C2 H8 116.041
C1 C2 H9 116.041 C1 C3 C5 74.856
C1 C3 H10 116.041 C1 C3 H11 116.041
C1 C4 C5 74.856 C1 C4 H12 116.041
C1 C4 H13 116.041 C2 C1 C3 86.900
C2 C1 C4 86.900 C2 C1 H6 127.428
C2 C5 C3 86.900 C2 C5 C4 86.900
C2 C5 H7 127.428 C3 C1 C4 86.900
C3 C1 H6 127.428 C3 C5 C4 86.900
C3 C5 H7 127.428 C4 C1 H6 127.428
C4 C5 H7 127.428 C5 C2 H8 116.041
C5 C2 H9 116.041 C5 C3 H10 116.041
C5 C3 H11 116.041 C5 C4 H12 116.041
C5 C4 H13 116.041 H8 C2 H9 112.877
H10 C3 H11 112.877 H12 C4 H13 112.877
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability