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All results from a given calculation for C4H8 (methylcyclopropane)

using model chemistry: TPSSh/6-311G*

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/6-311G*
 hartrees
Energy at 0K-157.257191
Energy at 298.15K-157.265740
HF Energy-157.257191
Nuclear repulsion energy124.035252
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/6-311G*
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' 3209 3091 46.68      
2 A' 3132 3017 25.87      
3 A' 3121 3006 23.35      
4 A' 3081 2968 29.86      
5 A' 3018 2907 46.31      
6 A' 1533 1476 3.01      
7 A' 1524 1468 6.96      
8 A' 1440 1387 3.27      
9 A' 1405 1354 2.81      
10 A' 1241 1195 0.04      
11 A' 1216 1171 0.02      
12 A' 1050 1012 6.33      
13 A' 1004 967 11.12      
14 A' 943 908 3.07      
15 A' 797 768 5.57      
16 A' 771 742 1.85      
17 A' 351 338 0.24      
18 A" 3193 3075 0.38      
19 A" 3115 3000 39.17      
20 A" 3078 2965 44.73      
21 A" 1521 1465 2.31      
22 A" 1486 1432 2.33      
23 A" 1208 1164 0.71      
24 A" 1144 1102 0.00      
25 A" 1118 1077 4.04      
26 A" 1061 1022 1.74      
27 A" 879 846 8.55      
28 A" 817 787 4.95      
29 A" 335 323 0.68      
30 A" 221 213 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24005.7 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 23122.3 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/6-311G*
ABC
0.52050 0.21061 0.18505

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.347 0.404 0.000
C2 -0.882 1.285 0.000
H3 1.292 0.942 0.000
C4 0.347 -0.902 0.755
C5 0.347 -0.902 -0.755
H6 1.254 -1.205 1.268
H7 1.254 -1.205 -1.268
H8 -0.569 -1.192 1.261
H9 -0.569 -1.192 -1.261
H10 -1.796 0.682 0.000
H11 -0.911 1.929 0.885
H12 -0.911 1.929 -0.885

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.51221.08741.50901.50902.24062.24062.23102.23102.16082.16622.1662
C21.51222.20102.62022.62023.51723.51722.79732.79731.09501.09521.0952
H31.08742.20102.20562.20562.49412.49413.09973.09973.09892.57142.5714
C41.50902.62022.20561.51071.08472.23811.08562.23342.76983.10113.5059
C51.50902.62022.20561.51072.23811.08472.23341.08562.76983.50593.1011
H62.24063.51722.49411.08472.23812.53691.82243.11753.80373.82844.3759
H72.24063.51722.49412.23811.08472.53693.11751.82243.80374.37593.8284
H82.23102.79733.09971.08562.23341.82243.11752.52182.57053.16263.8035
H92.23102.79733.09972.23341.08563.11751.82242.52182.57053.80353.1626
H102.16081.09503.09892.76982.76983.80373.80372.57052.57051.76711.7671
H112.16621.09522.57143.10113.50593.82844.37593.16263.80351.76711.7705
H122.16621.09522.57143.50593.10114.37593.82843.80353.16261.76711.7705

picture of methylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H10 110.936 C1 C2 H11 111.358
C1 C2 H12 111.358 C1 C4 H5 59.963
C1 C4 H6 118.588 C1 C4 H8 117.669
C1 H5 C4 59.963 C1 H5 H7 118.588
C1 H5 H9 117.669 C2 C1 C3 114.720
C2 C1 C4 120.286 C2 C1 H5 120.286
C3 C1 C4 115.358 C3 C1 H5 115.358
C4 C1 H5 60.074 C4 H5 H7 118.231
C4 H5 H9 117.753 H5 C4 H6 118.231
H5 C4 H8 117.753 H6 C4 H8 114.213
H7 H5 H9 114.213 H10 C2 H11 107.572
H10 C2 H12 107.572 H11 C2 H12 107.863
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.212      
2 C -0.599      
3 H 0.198      
4 C -0.418      
5 C -0.418      
6 H 0.212      
7 H 0.212      
8 H 0.209      
9 H 0.209      
10 H 0.193      
11 H 0.206      
12 H 0.206      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.045 0.103 0.000 0.113
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 6.231 -0.480 0.000
y -0.480 6.881 0.000
z 0.000 0.000 6.359


<r2> (average value of r2) Å2
<r2> 83.805
(<r2>)1/2 9.155