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All results from a given calculation for C4H8 (methylcyclopropane)

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-157.082638
Energy at 298.15K-157.091255
HF Energy-157.082638
Nuclear repulsion energy124.797390
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/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' 3235 3109 22.43      
2 A' 3157 3034 17.11      
3 A' 3146 3024 12.12      
4 A' 3104 2983 20.22      
5 A' 3035 2917 33.02      
6 A' 1516 1457 1.66      
7 A' 1494 1436 9.50      
8 A' 1427 1372 3.98      
9 A' 1393 1339 1.76      
10 A' 1246 1197 0.02      
11 A' 1215 1168 0.02      
12 A' 1060 1018 4.56      
13 A' 1013 974 13.35      
14 A' 943 907 2.62      
15 A' 808 777 6.98      
16 A' 778 748 1.07      
17 A' 363 349 0.18      
18 A" 3220 3095 0.24      
19 A" 3141 3019 24.00      
20 A" 3102 2982 27.00      
21 A" 1485 1427 2.19      
22 A" 1464 1407 3.79      
23 A" 1198 1151 0.64      
24 A" 1144 1100 0.14      
25 A" 1111 1068 4.98      
26 A" 1074 1032 1.19      
27 A" 894 860 8.14      
28 A" 820 788 4.99      
29 A" 346 333 0.68      
30 A" 227 218 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24080.0 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 23143.3 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 HSEh1PBE/cc-pVTZ
ABC
0.52613 0.21376 0.18785

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.346 0.402 0.000
C2 -0.877 1.273 0.000
H3 1.287 0.940 0.000
C4 0.346 -0.894 0.750
C5 0.346 -0.894 -0.750
H6 1.249 -1.199 1.261
H7 1.249 -1.199 -1.261
H8 -0.569 -1.180 1.254
H9 -0.569 -1.180 -1.254
H10 -1.785 0.665 0.000
H11 -0.911 1.916 0.883
H12 -0.911 1.916 -0.883

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.50161.08461.49731.49732.22892.22892.21602.21602.14732.15642.1564
C21.50162.19012.59892.59893.49593.49592.77172.77171.09281.09271.0927
H31.08462.19012.19392.19392.48312.48313.08433.08433.08502.56162.5616
C41.49732.59892.19391.50061.08192.22611.08292.22192.74503.08053.4842
C51.49732.59892.19391.50062.22611.08192.22191.08292.74503.48423.0805
H62.22893.49592.48311.08192.22612.52251.81883.10413.77803.80874.3545
H72.22893.49592.48312.22611.08192.52253.10411.81883.77804.35453.8087
H82.21602.77173.08431.08292.22191.81883.10412.50842.54053.13603.7768
H92.21602.77173.08432.22191.08293.10411.81882.50842.54053.77683.1360
H102.14731.09283.08502.74502.74503.77803.77802.54052.54051.76331.7633
H112.15641.09272.56163.08053.48423.80874.35453.13603.77681.76331.7661
H122.15641.09272.56163.48423.08054.35453.80873.77683.13601.76331.7661

picture of methylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H10 110.739 C1 C2 H11 111.470
C1 C2 H12 111.470 C1 C4 H5 59.926
C1 C4 H6 118.703 C1 C4 H8 117.478
C1 H5 C4 59.926 C1 H5 H7 118.703
C1 H5 H9 117.478 C2 C1 C3 114.780
C2 C1 C4 120.135 C2 C1 H5 120.135
C3 C1 C4 115.439 C3 C1 H5 115.439
C4 C1 H5 60.149 C4 H5 H7 118.181
C4 H5 H9 117.729 H5 C4 H6 118.181
H5 C4 H8 117.729 H6 C4 H8 114.318
H7 H5 H9 114.318 H10 C2 H11 107.576
H10 C2 H12 107.576 H11 C2 H12 107.826
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.056      
2 C -0.287      
3 H 0.105      
4 C -0.225      
5 C -0.225      
6 H 0.104      
7 H 0.104      
8 H 0.098      
9 H 0.098      
10 H 0.085      
11 H 0.098      
12 H 0.098      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.039 0.125 0.000 0.131
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.364 0.217 0.000
y 0.217 -27.346 0.000
z 0.000 0.000 -27.090
Traceless
 xyz
x 1.854 0.217 0.000
y 0.217 -1.119 0.000
z 0.000 0.000 -0.735
Polar
3z2-r2-1.470
x2-y21.982
xy0.217
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.573 -0.514 0.000
y -0.514 7.289 0.000
z 0.000 0.000 6.732


<r2> (average value of r2) Å2
<r2> 82.900
(<r2>)1/2 9.105