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

using model chemistry: CCD/cc-pVDZ

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/cc-pVDZ
 hartrees
Energy at 0K-194.667694
Energy at 298.15K 
HF Energy-193.917829
Nuclear repulsion energy178.296896
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/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1' 3154 3018 0.00      
2 A1' 3089 2955 0.00      
3 A1' 1555 1488 0.00      
4 A1' 1148 1098 0.00      
5 A1' 928 888 0.00      
6 A1" 1003 960 0.00      
7 A2' 3153 3016 0.00      
8 A2' 959 917 0.00      
9 A2" 3147 3011 104.17      
10 A2" 1278 1223 27.23      
11 A2" 863 826 4.33      
12 E' 3159 3022 59.76      
12 E' 3159 3022 59.76      
13 E' 3083 2950 67.00      
13 E' 3083 2950 67.00      
14 E' 1505 1440 0.06      
14 E' 1505 1440 0.06      
15 E' 1285 1229 1.47      
15 E' 1285 1229 1.47      
16 E' 1123 1074 0.58      
16 E' 1123 1074 0.58      
17 E' 920 881 0.37      
17 E' 920 881 0.37      
18 E' 542 519 0.22      
18 E' 542 519 0.22      
19 E" 1222 1169 0.00      
19 E" 1222 1169 0.00      
20 E" 1167 1116 0.00      
20 E" 1167 1116 0.00      
21 E" 1034 989 0.00      
21 E" 1034 989 0.00      
22 E" 811 776 0.00      
22 E" 811 776 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 25989.6 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 24864.2 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/cc-pVDZ
ABC
0.23805 0.23805 0.20633

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

Point Group is D3h

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.947
C2 0.000 1.243 0.000
C3 1.077 -0.622 0.000
C4 -1.077 -0.622 0.000
C5 0.000 0.000 -0.947
H6 0.000 0.000 2.048
H7 0.000 0.000 -2.048
H8 0.913 1.864 0.000
H9 -0.913 1.864 0.000
H10 1.157 -1.723 0.000
H11 2.071 -0.141 0.000
H12 -2.071 -0.141 0.000
H13 -1.157 -1.723 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.56281.56271.56271.89331.10162.99492.28102.28102.28102.28102.28102.2810
C21.56282.15372.15371.56282.39612.39611.10401.10403.18392.49062.49063.1839
C31.56272.15372.15371.56272.39612.39612.49063.18391.10401.10403.18392.4906
C41.56272.15372.15371.56272.39612.39613.18392.49062.49063.18391.10401.1040
C51.89331.56281.56271.56272.99491.10162.28102.28102.28102.28102.28102.2810
H61.10162.39612.39612.39612.99494.09652.91592.91592.91592.91592.91592.9159
H72.99492.39612.39612.39611.10164.09652.91592.91592.91592.91592.91592.9159
H82.28101.10402.49063.18392.28102.91592.91591.82673.59452.31443.59454.1410
H92.28101.10403.18392.49062.28102.91592.91591.82674.14103.59452.31443.5945
H102.28103.18391.10402.49062.28102.91592.91593.59454.14101.82673.59452.3144
H112.28102.49061.10403.18392.28102.91592.91592.31443.59451.82674.14103.5945
H122.28102.49063.18391.10402.28102.91592.91593.59452.31443.59454.14101.8267
H132.28103.18392.49061.10402.28102.91592.91594.14103.59452.31443.59451.8267

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 74.565 C1 C2 H8 116.547
C1 C2 H9 116.547 C1 C3 C5 74.565
C1 C3 H10 116.547 C1 C3 H11 116.547
C1 C4 C5 74.565 C1 C4 H12 116.547
C1 C4 H13 116.547 C2 C1 C3 87.112
C2 C1 C4 87.112 C2 C1 H6 127.282
C2 C5 C3 87.112 C2 C5 C4 87.112
C2 C5 H7 127.282 C3 C1 C4 87.112
C3 C1 H6 127.282 C3 C5 C4 87.112
C3 C5 H7 127.282 C4 C1 H6 127.282
C4 C5 H7 127.282 C5 C2 H8 116.547
C5 C2 H9 116.547 C5 C3 H10 116.547
C5 C3 H11 116.547 C5 C4 H12 116.547
C5 C4 H13 116.547 H8 C2 H9 111.652
H10 C3 H11 111.652 H12 C4 H13 111.652
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability