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

using model chemistry: CCD/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 CCD/Def2TZVPP
 hartrees
Energy at 0K-194.855256
Energy at 298.15K 
HF Energy-193.974403
Nuclear repulsion energy179.833159
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 CCD/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' 3162 3162 0.00      
2 A1' 3091 3091 0.00      
3 A1' 1576 1576 0.00      
4 A1' 1147 1147 0.00      
5 A1' 927 927 0.00      
6 A1" 1021 1021 0.00      
7 A2' 3152 3152 0.00      
8 A2' 976 976 0.00      
9 A2" 3156 3156 103.66      
10 A2" 1282 1282 36.46      
11 A2" 870 870 5.10      
12 E' 3157 3157 57.54      
12 E' 3157 3157 57.54      
13 E' 3086 3086 69.08      
13 E' 3086 3086 69.08      
14 E' 1526 1526 0.51      
14 E' 1526 1526 0.51      
15 E' 1294 1294 1.92      
15 E' 1294 1294 1.92      
16 E' 1135 1135 0.44      
16 E' 1135 1135 0.44      
17 E' 927 927 0.55      
17 E' 927 927 0.55      
18 E' 546 546 0.17      
18 E' 546 546 0.17      
19 E" 1239 1239 0.00      
19 E" 1239 1239 0.00      
20 E" 1174 1174 0.00      
20 E" 1174 1174 0.00      
21 E" 1051 1051 0.00      
21 E" 1051 1051 0.00      
22 E" 812 812 0.00      
22 E" 812 812 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26126.6 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 26126.6 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 CCD/Def2TZVPP
ABC
0.24204 0.24204 0.20944

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.939
C2 0.000 1.236 0.000
C3 1.070 -0.618 0.000
C4 -1.070 -0.618 0.000
C5 0.000 0.000 -0.939
H6 0.000 0.000 2.025
H7 0.000 0.000 -2.025
H8 0.902 1.845 0.000
H9 -0.902 1.845 0.000
H10 1.147 -1.704 0.000
H11 2.049 -0.141 0.000
H12 -2.049 -0.141 0.000
H13 -1.147 -1.704 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55181.55181.55181.87711.08602.96312.25842.25842.25842.25842.25842.2584
C21.55182.14032.14031.55182.37192.37191.08901.08903.15572.46892.46893.1557
C31.55182.14032.14031.55182.37192.37192.46893.15571.08901.08903.15572.4689
C41.55182.14032.14031.55182.37192.37193.15572.46892.46893.15571.08901.0890
C51.87711.55181.55181.55182.96311.08602.25842.25842.25842.25842.25842.2584
H61.08602.37192.37192.37192.96314.04912.88422.88422.88422.88422.88422.8842
H72.96312.37192.37192.37191.08604.04912.88422.88422.88422.88422.88422.8842
H82.25841.08902.46893.15572.25842.88422.88421.80493.55792.29373.55794.0986
H92.25841.08903.15572.46892.25842.88422.88421.80494.09863.55792.29373.5579
H102.25843.15571.08902.46892.25842.88422.88423.55794.09861.80493.55792.2937
H112.25842.46891.08903.15572.25842.88422.88422.29373.55791.80494.09863.5579
H122.25842.46893.15571.08902.25842.88422.88423.55792.29373.55794.09861.8049
H132.25843.15572.46891.08902.25842.88422.88424.09863.55792.29373.55791.8049

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 74.435 C1 C2 H8 116.471
C1 C2 H9 116.471 C1 C3 C5 74.435
C1 C3 H10 116.471 C1 C3 H11 116.471
C1 C4 C5 74.435 C1 C4 H12 116.471
C1 C4 H13 116.471 C2 C1 C3 87.206
C2 C1 C4 87.206 C2 C1 H6 127.218
C2 C5 C3 87.206 C2 C5 C4 87.206
C2 C5 H7 127.218 C3 C1 C4 87.206
C3 C1 H6 127.218 C3 C5 C4 87.206
C3 C5 H7 127.218 C4 C1 H6 127.218
C4 C5 H7 127.218 C5 C2 H8 116.471
C5 C2 H9 116.471 C5 C3 H10 116.471
C5 C3 H11 116.471 C5 C4 H12 116.471
C5 C4 H13 116.471 H8 C2 H9 111.923
H10 C3 H11 111.923 H12 C4 H13 111.923
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability