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All results from a given calculation for C4H8 (methylcyclopropane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-311G**
 hartrees
Energy at 0K-157.067457
Energy at 298.15K-157.076066
HF Energy-157.067457
Nuclear repulsion energy124.528433
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 HSEh1PBE/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' 3235 3107 26.49      
2 A' 3156 3031 19.09      
3 A' 3144 3019 13.33      
4 A' 3108 2985 21.45      
5 A' 3036 2916 34.72      
6 A' 1519 1459 1.84      
7 A' 1496 1437 10.90      
8 A' 1429 1372 4.15      
9 A' 1391 1336 1.47      
10 A' 1246 1197 0.04      
11 A' 1215 1167 0.00      
12 A' 1058 1017 5.15      
13 A' 1013 973 15.40      
14 A' 944 906 3.03      
15 A' 809 777 7.59      
16 A' 779 748 1.12      
17 A' 365 350 0.21      
18 A" 3220 3092 0.27      
19 A" 3138 3014 24.87      
20 A" 3107 2984 30.38      
21 A" 1487 1429 2.54      
22 A" 1462 1404 4.95      
23 A" 1196 1148 0.77      
24 A" 1141 1096 0.14      
25 A" 1109 1065 5.64      
26 A" 1068 1025 1.79      
27 A" 894 859 8.43      
28 A" 820 787 5.31      
29 A" 346 332 0.77      
30 A" 227 218 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24076.8 cm-1
Scaled (by 0.9604) Zero Point Vibrational Energy (zpe) 23123.4 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 HSEh1PBE/6-311G**
ABC
0.52387 0.21282 0.18701

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.346 0.403 0.000
C2 -0.879 1.276 0.000
H3 1.290 0.942 0.000
C4 0.346 -0.896 0.752
C5 0.346 -0.896 -0.752
H6 1.252 -1.200 1.265
H7 1.252 -1.200 -1.265
H8 -0.571 -1.183 1.257
H9 -0.571 -1.183 -1.257
H10 -1.789 0.668 0.000
H11 -0.911 1.920 0.885
H12 -0.911 1.920 -0.885

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.50451.08681.50091.50092.23362.23362.22122.22122.15192.16002.1600
C21.50452.19442.60482.60483.50303.50302.77852.77851.09471.09471.0947
H31.08682.19442.19882.19882.48792.48793.09113.09113.09132.56612.5661
C41.50092.60482.19881.50381.08402.23121.08512.22642.75183.08683.4914
C51.50092.60482.19881.50382.23121.08402.22641.08512.75183.49143.0868
H62.23363.50302.48791.08402.23122.52901.82233.11083.78643.81544.3627
H72.23363.50302.48792.23121.08402.52903.11081.82233.78644.36273.8154
H82.22122.77853.09111.08512.22641.82233.11082.51332.54753.14313.7851
H92.22122.77853.09112.22641.08513.11081.82232.51332.54753.78513.1431
H102.15191.09473.09132.75182.75183.78643.78642.54752.54751.76641.7664
H112.16001.09472.56613.08683.49143.81544.36273.14313.78511.76641.7698
H122.16001.09472.56613.49143.08684.36273.81543.78513.14311.76641.7698

picture of methylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H10 110.779 C1 C2 H11 111.432
C1 C2 H12 111.432 C1 C4 H5 59.936
C1 C4 H6 118.669 C1 C4 H8 117.490
C1 H5 C4 59.936 C1 H5 H7 118.669
C1 H5 H9 117.490 C2 C1 C3 114.782
C2 C1 C4 120.153 C2 C1 H5 120.153
C3 C1 C4 115.425 C3 C1 H5 115.425
C4 C1 H5 60.128 C4 H5 H7 118.221
C4 H5 H9 117.719 H5 C4 H6 118.221
H5 C4 H8 117.719 H6 C4 H8 114.310
H7 H5 H9 114.310 H10 C2 H11 107.572
H10 C2 H12 107.572 H11 C2 H12 107.874
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.236      
2 C -0.291      
3 H 0.134      
4 C -0.253      
5 C -0.253      
6 H 0.136      
7 H 0.136      
8 H 0.135      
9 H 0.135      
10 H 0.108      
11 H 0.124      
12 H 0.124      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.030 0.122 0.000 0.125
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.258 0.192 0.000
y 0.192 -27.297 0.000
z 0.000 0.000 -27.074
Traceless
 xyz
x 1.927 0.192 0.000
y 0.192 -1.131 0.000
z 0.000 0.000 -0.796
Polar
3z2-r2-1.593
x2-y22.039
xy0.192
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.283 -0.474 0.000
y -0.474 6.904 0.000
z 0.000 0.000 6.391


<r2> (average value of r2) Å2
<r2> 83.154
(<r2>)1/2 9.119