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

using model chemistry: CCD/TZVP

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/TZVP
 hartrees
Energy at 0K-194.736809
Energy at 298.15K 
HF Energy-193.963250
Nuclear repulsion energy179.640025
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/TZVP
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' 3165 3000 0.00      
2 A1' 3096 2935 0.00      
3 A1' 1590 1507 0.00      
4 A1' 1153 1093 0.00      
5 A1' 937 889 0.00      
6 A1" 1010 957 0.00      
7 A2' 3156 2992 0.00      
8 A2' 985 934 0.00      
9 A2" 3159 2995 115.86      
10 A2" 1283 1217 36.25      
11 A2" 859 814 6.22      
12 E' 3162 2998 67.24      
12 E' 3162 2998 67.24      
13 E' 3090 2929 75.21      
13 E' 3090 2929 75.21      
14 E' 1539 1459 0.05      
14 E' 1539 1459 0.05      
15 E' 1274 1207 1.95      
15 E' 1274 1207 1.95      
16 E' 1137 1078 0.40      
16 E' 1137 1078 0.40      
17 E' 913 866 0.67      
17 E' 913 866 0.67      
18 E' 559 530 0.23      
18 E' 559 530 0.23      
19 E" 1236 1172 0.00      
19 E" 1236 1172 0.00      
20 E" 1160 1100 0.00      
20 E" 1160 1100 0.00      
21 E" 1029 975 0.00      
21 E" 1029 975 0.00      
22 E" 806 764 0.00      
22 E" 806 764 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 26101.4 cm-1
Scaled (by 0.948) Zero Point Vibrational Energy (zpe) 24744.1 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 CCD/TZVP
ABC
0.24153 0.24153 0.20910

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.940
C2 0.000 1.236 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 2.028
H7 0.000 0.000 -2.028
H8 0.904 1.848 0.000
H9 -0.904 1.848 0.000
H10 1.148 -1.707 0.000
H11 2.052 -0.141 0.000
H12 -2.052 -0.141 0.000
H13 -1.148 -1.707 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.55301.55301.55301.87951.08812.96762.26152.26152.26152.26152.26152.2615
C21.55302.14152.14151.55302.37512.37511.09121.09123.15922.47172.47173.1592
C31.55302.14152.14151.55302.37512.37512.47173.15921.09121.09123.15922.4717
C41.55302.14152.14151.55302.37512.37513.15922.47172.47173.15921.09121.0912
C51.87951.55301.55301.55302.96761.08812.26152.26152.26152.26152.26152.2615
H61.08812.37512.37512.37512.96764.05572.88852.88852.88852.88852.88852.8885
H72.96762.37512.37512.37511.08814.05572.88852.88852.88852.88852.88852.8885
H82.26151.09122.47173.15922.26152.88852.88851.80753.56292.29693.56294.1044
H92.26151.09123.15922.47172.26152.88852.88851.80754.10443.56292.29693.5629
H102.26153.15921.09122.47172.26152.88852.88853.56294.10441.80753.56292.2969
H112.26152.47171.09123.15922.26152.88852.88852.29693.56291.80754.10443.5629
H122.26152.47173.15921.09122.26152.88852.88853.56292.29693.56294.10441.8075
H132.26153.15922.47171.09122.26152.88852.88854.10443.56292.29693.56291.8075

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 74.473 C1 C2 H8 116.496
C1 C2 H9 116.496 C1 C3 C5 74.473
C1 C3 H10 116.496 C1 C3 H11 116.496
C1 C4 C5 74.473 C1 C4 H12 116.496
C1 C4 H13 116.496 C2 C1 C3 87.178
C2 C1 C4 87.178 C2 C1 H6 127.237
C2 C5 C3 87.178 C2 C5 C4 87.178
C2 C5 H7 127.237 C3 C1 C4 87.178
C3 C1 H6 127.237 C3 C5 C4 87.178
C3 C5 H7 127.237 C4 C1 H6 127.237
C4 C5 H7 127.237 C5 C2 H8 116.496
C5 C2 H9 116.496 C5 C3 H10 116.496
C5 C3 H11 116.496 C5 C4 H12 116.496
C5 C4 H13 116.496 H8 C2 H9 111.836
H10 C3 H11 111.836 H12 C4 H13 111.836
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability