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

using model chemistry: MP3/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes D3H 1A1'
Energy calculated at MP3/6-311+G(3df,2p)
 hartrees
Energy at 0K-194.843744
Energy at 298.15K 
HF Energy-193.965730
Nuclear repulsion energy179.730324
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 MP3/6-311+G(3df,2p)
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' 3163 3163 0.00      
2 A1' 3097 3097 0.00      
3 A1' 1576 1576 0.00      
4 A1' 1146 1146 0.00      
5 A1' 928 928 0.00      
6 A1" 1019 1019 0.00      
7 A2' 3159 3159 0.00      
8 A2' 972 972 0.00      
9 A2" 3157 3157 108.88      
10 A2" 1279 1279 35.86      
11 A2" 871 871 4.48      
12 E' 3164 3164 59.23      
12 E' 3164 3164 59.23      
13 E' 3091 3091 72.36      
13 E' 3091 3091 72.36      
14 E' 1524 1524 0.55      
14 E' 1524 1524 0.55      
15 E' 1290 1290 1.77      
15 E' 1290 1290 1.77      
16 E' 1133 1133 0.44      
16 E' 1133 1133 0.44      
17 E' 927 927 0.49      
17 E' 927 927 0.49      
18 E' 547 547 0.17      
18 E' 547 547 0.17      
19 E" 1236 1236 0.00      
19 E" 1236 1236 0.00      
20 E" 1172 1172 0.00      
20 E" 1172 1172 0.00      
21 E" 1049 1049 0.00      
21 E" 1049 1049 0.00      
22 E" 814 814 0.00      
22 E" 814 814 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26130.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26130.6 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 MP3/6-311+G(3df,2p)
ABC
0.24175 0.24175 0.20919

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3/6-311+G(3df,2p)

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.939
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 -0.939
H6 0.000 0.000 2.026
H7 0.000 0.000 -2.026
H8 0.902 1.846 0.000
H9 -0.902 1.846 0.000
H10 1.148 -1.705 0.000
H11 2.050 -0.142 0.000
H12 -2.050 -0.142 0.000
H13 -1.148 -1.705 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55271.55271.55271.87831.08662.96492.25962.25962.25962.25962.25962.2596
C21.55272.14172.14171.55272.37332.37331.08921.08923.15742.47052.47053.1574
C31.55272.14172.14171.55272.37332.37332.47053.15741.08921.08923.15742.4705
C41.55272.14172.14171.55272.37332.37333.15742.47052.47053.15741.08921.0892
C51.87831.55271.55271.55272.96491.08662.25962.25962.25962.25962.25962.2596
H61.08662.37332.37332.37332.96494.05162.88582.88582.88582.88582.88582.8858
H72.96492.37332.37332.37331.08664.05162.88582.88582.88582.88582.88582.8858
H82.25961.08922.47053.15742.25962.88582.88581.80493.55972.29583.55974.1007
H92.25961.08923.15742.47052.25962.88582.88581.80494.10073.55972.29583.5597
H102.25963.15741.08922.47052.25962.88582.88583.55974.10071.80493.55972.2958
H112.25962.47051.08923.15742.25962.88582.88582.29583.55971.80494.10073.5597
H122.25962.47053.15741.08922.25962.88582.88583.55972.29583.55974.10071.8049
H132.25963.15742.47051.08922.25962.88582.88584.10073.55972.29583.55971.8049

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 74.432 C1 C2 H8 116.484
C1 C2 H9 116.484 C1 C3 C5 74.432
C1 C3 H10 116.484 C1 C3 H11 116.484
C1 C4 C5 74.432 C1 C4 H12 116.484
C1 C4 H13 116.484 C2 C1 C3 87.208
C2 C1 C4 87.208 C2 C1 H6 127.216
C2 C5 C3 87.208 C2 C5 C4 87.208
C2 C5 H7 127.216 C3 C1 C4 87.208
C3 C1 H6 127.216 C3 C5 C4 87.208
C3 C5 H7 127.216 C4 C1 H6 127.216
C4 C5 H7 127.216 C5 C2 H8 116.484
C5 C2 H9 116.484 C5 C3 H10 116.484
C5 C3 H11 116.484 C5 C4 H12 116.484
C5 C4 H13 116.484 H8 C2 H9 111.890
H10 C3 H11 111.890 H12 C4 H13 111.890
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability