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All results from a given calculation for C5H8 (Bicyclo[2.1.0]pentane)

using model chemistry: TPSSh/cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at TPSSh/cc-pVTZ
 hartrees
Energy at 0K-195.369993
Energy at 298.15K-195.379143
HF Energy-195.369993
Nuclear repulsion energy176.259207
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 TPSSh/cc-pVTZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3188 3086 27.78      
2 A' 3168 3067 9.56      
3 A' 3101 3003 55.85      
4 A' 3088 2990 26.27      
5 A' 3037 2941 73.15      
6 A' 1513 1465 0.85      
7 A' 1489 1442 1.76      
8 A' 1367 1324 1.21      
9 A' 1242 1203 1.36      
10 A' 1215 1176 0.07      
11 A' 1132 1096 0.55      
12 A' 1028 995 0.11      
13 A' 982 951 3.36      
14 A' 944 914 6.90      
15 A' 905 876 0.66      
16 A' 784 759 6.17      
17 A' 776 752 2.32      
18 A' 402 389 0.46      
19 A" 3160 3059 29.82      
20 A" 3082 2984 1.66      
21 A" 3027 2931 56.03      
22 A" 1489 1442 0.13      
23 A" 1308 1266 5.35      
24 A" 1264 1224 0.73      
25 A" 1228 1189 0.01      
26 A" 1123 1088 0.08      
27 A" 1078 1044 2.59      
28 A" 1057 1024 0.63      
29 A" 995 964 4.16      
30 A" 934 904 0.08      
31 A" 805 779 13.36      
32 A" 675 654 0.07      
33 A" 259 250 0.36      

Unscaled Zero Point Vibrational Energy (zpe) 25420.5 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 24614.7 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 TPSSh/cc-pVTZ
ABC
0.30587 0.20475 0.16020

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.246 -0.539 0.762
C2 -0.246 -0.539 -0.762
C3 -0.246 0.992 0.781
C4 -0.246 0.992 -0.781
C5 0.942 -1.040 0.000
H6 -0.793 -1.177 1.445
H7 -0.793 -1.177 -1.445
H8 0.607 1.462 1.279
H9 0.607 1.462 -1.279
H10 -1.164 1.415 1.187
H11 -1.164 1.415 -1.187
H12 1.871 -0.476 0.000
H13 1.075 -2.116 0.000

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 H6 H7 H8 H9 H10 H11 H12 H13
C11.52461.53052.17381.49811.08262.36152.23502.98222.20062.90922.25062.1935
C21.52462.17381.53051.49812.36151.08262.98222.23502.90922.20062.25062.1935
C31.53052.17381.56282.48012.33273.15541.09312.27841.09012.21352.69143.4655
C42.17381.53051.56282.48013.15542.33272.27841.09312.21351.09012.69143.4655
C51.49811.49812.48012.48012.26192.26192.82972.82973.44643.44641.08671.0834
H61.08262.36152.33273.15542.26192.88912.99144.04182.63123.71273.11022.5408
H72.36151.08263.15542.33272.26192.88914.04182.99143.71272.63123.11022.5408
H82.23502.98221.09312.27842.82972.99144.04182.55711.77423.03652.64303.8276
H92.98222.23502.27841.09312.82974.04182.99142.55713.03651.77422.64303.8276
H102.20062.90921.09012.21353.44642.63123.71271.77423.03652.37483.76814.3463
H112.90922.20062.21351.09013.44643.71272.63123.03651.77422.37483.76814.3463
H122.25062.25062.69142.69141.08673.11023.11022.64302.64303.76813.76811.8230
H132.19352.19353.46553.46551.08342.54082.54083.82763.82764.34634.34631.8230

picture of Bicyclo[2.1.0]pentane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 90.715 C1 C2 C5 59.412
C1 C2 H7 129.066 C1 C3 C4 89.285
C1 C3 H8 115.825 C1 C3 H10 113.153
C1 C5 C2 61.177 C1 C5 H12 120.242
C1 C5 H13 115.419 C2 C1 C3 90.715
C2 C1 C5 59.412 C2 C1 H6 129.066
C2 C4 C3 89.285 C2 C4 H9 115.825
C2 C4 H11 113.153 C2 C5 H12 120.242
C2 C5 H13 115.419 C3 C1 C5 109.945
C3 C1 H6 125.561 C3 C4 H9 117.050
C3 C4 H11 111.866 C4 C2 C5 109.945
C4 C2 H7 125.561 C4 C3 H8 117.050
C4 C3 H10 111.866 C5 C1 H6 121.608
C5 C2 H7 121.608 H8 C3 H10 108.716
H9 C4 H11 108.716 H12 C5 H13 114.284
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.083      
2 C -0.083      
3 C -0.089      
4 C -0.089      
5 C -0.169      
6 H 0.083      
7 H 0.083      
8 H 0.050      
9 H 0.050      
10 H 0.053      
11 H 0.053      
12 H 0.067      
13 H 0.073      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.243 -0.083 0.000 0.257
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.608 -0.433 0.000
y -0.433 8.475 0.000
z 0.000 0.000 7.952


<r2> (average value of r2) Å2
<r2> 97.944
(<r2>)1/2 9.897