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

using model chemistry: MP3=FULL/6-31G**

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=FULL/6-31G**
 hartrees
Energy at 0K-194.689134
Energy at 298.15K 
HF Energy-193.918673
Nuclear repulsion energy180.005014
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=FULL/6-31G**
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' 3226 3226 0.00      
2 A1' 3159 3159 0.00      
3 A1' 1621 1621 0.00      
4 A1' 1168 1168 0.00      
5 A1' 946 946 0.00      
6 A1" 1037 1037 0.00      
7 A2' 3221 3221 0.00      
8 A2' 999 999 0.00      
9 A2" 3219 3219 110.67      
10 A2" 1317 1317 28.01      
11 A2" 885 885 3.85      
12 E' 3227 3227 62.43      
12 E' 3227 3227 62.43      
13 E' 3153 3153 68.31      
13 E' 3153 3153 68.31      
14 E' 1571 1571 0.01      
14 E' 1571 1571 0.01      
15 E' 1319 1319 1.05      
15 E' 1319 1319 1.05      
16 E' 1157 1157 0.80      
16 E' 1157 1157 0.80      
17 E' 943 943 0.33      
17 E' 943 943 0.33      
18 E' 562 562 0.15      
18 E' 562 562 0.15      
19 E" 1265 1265 0.00      
19 E" 1265 1265 0.00      
20 E" 1199 1199 0.00      
20 E" 1199 1199 0.00      
21 E" 1070 1070 0.00      
21 E" 1070 1070 0.00      
22 E" 830 830 0.00      
22 E" 830 830 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26693.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26693.4 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=FULL/6-31G**
ABC
0.24246 0.24246 0.20990

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G**

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.938
C2 0.000 1.234 0.000
C3 1.069 -0.617 0.000
C4 -1.069 -0.617 0.000
C5 0.000 0.000 -0.938
H6 0.000 0.000 2.023
H7 0.000 0.000 -2.023
H8 0.900 1.846 0.000
H9 -0.900 1.846 0.000
H10 1.148 -1.702 0.000
H11 2.048 -0.144 0.000
H12 -2.048 -0.144 0.000
H13 -1.148 -1.702 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55011.55011.55011.87631.08502.96122.25732.25732.25732.25732.25732.2573
C21.55012.13742.13741.55012.36982.36981.08781.08783.15262.46842.46843.1526
C31.55012.13742.13741.55012.36982.36982.46843.15261.08781.08783.15262.4684
C41.55012.13742.13741.55012.36982.36983.15262.46842.46843.15261.08781.0878
C51.87631.55011.55011.55012.96121.08502.25732.25732.25732.25732.25732.2573
H61.08502.36982.36982.36982.96124.04622.88242.88242.88242.88242.88242.8824
H72.96122.36982.36982.36981.08504.04622.88242.88242.88242.88242.88242.8824
H82.25731.08782.46843.15262.25732.88242.88241.79933.55622.29703.55624.0962
H92.25731.08783.15262.46842.25732.88242.88241.79934.09623.55622.29703.5562
H102.25733.15261.08782.46842.25732.88242.88243.55624.09621.79933.55622.2970
H112.25732.46841.08783.15262.25732.88242.88242.29703.55621.79934.09623.5562
H122.25732.46843.15261.08782.25732.88242.88243.55622.29703.55624.09621.7993
H132.25733.15262.46841.08782.25732.88242.88244.09623.55622.29703.55621.7993

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 74.485 C1 C2 H8 116.586
C1 C2 H9 116.586 C1 C3 C5 74.485
C1 C3 H10 116.586 C1 C3 H11 116.586
C1 C4 C5 74.485 C1 C4 H12 116.586
C1 C4 H13 116.586 C2 C1 C3 87.169
C2 C1 C4 87.169 C2 C1 H6 127.243
C2 C5 C3 87.169 C2 C5 C4 87.169
C2 C5 H7 127.243 C3 C1 C4 87.169
C3 C1 H6 127.243 C3 C5 C4 87.169
C3 C5 H7 127.243 C4 C1 H6 127.243
C4 C5 H7 127.243 C5 C2 H8 116.586
C5 C2 H9 116.586 C5 C3 H10 116.586
C5 C3 H11 116.586 C5 C4 H12 116.586
C5 C4 H13 116.586 H8 C2 H9 111.587
H10 C3 H11 111.587 H12 C4 H13 111.587
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability