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All results from a given calculation for C4H8 (methylcyclopropane)

using model chemistry: M06-2X/6-31+G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at M06-2X/6-31+G**
 hartrees
Energy at 0K-157.139505
Energy at 298.15K-157.148116
HF Energy-157.139505
Nuclear repulsion energy124.414535
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 M06-2X/6-31+G**
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' 3247 3092 18.86      
2 A' 3169 3018 18.98      
3 A' 3155 3004 9.86      
4 A' 3133 2983 17.84      
5 A' 3060 2914 34.03      
6 A' 1535 1461 1.55      
7 A' 1509 1437 10.58      
8 A' 1439 1370 4.07      
9 A' 1396 1330 1.78      
10 A' 1248 1188 0.06      
11 A' 1215 1157 0.08      
12 A' 1061 1011 4.17      
13 A' 1017 968 18.55      
14 A' 948 902 2.48      
15 A' 814 775 8.24      
16 A' 771 734 0.64      
17 A' 368 350 0.20      
18 A" 3236 3081 0.24      
19 A" 3151 3000 19.14      
20 A" 3137 2987 28.36      
21 A" 1503 1431 2.45      
22 A" 1472 1401 2.94      
23 A" 1193 1136 0.80      
24 A" 1141 1087 0.21      
25 A" 1110 1057 4.11      
26 A" 1068 1017 1.99      
27 A" 904 861 9.90      
28 A" 818 779 5.21      
29 A" 345 329 0.69      
30 A" 235 224 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 24198.5 cm-1
Scaled (by 0.9522) Zero Point Vibrational Energy (zpe) 23041.8 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 M06-2X/6-31+G**
ABC
0.52103 0.21283 0.18711

See section I.F.4 to change rotational constant units
Geometric Data calculated at M06-2X/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.350 0.406 0.000
C2 -0.889 1.270 0.000
H3 1.292 0.951 0.000
C4 0.350 -0.893 0.754
C5 0.350 -0.893 -0.754
H6 1.257 -1.199 1.264
H7 1.257 -1.199 -1.264
H8 -0.569 -1.177 1.257
H9 -0.569 -1.177 -1.257
H10 -1.788 0.644 0.000
H11 -0.927 1.910 0.887
H12 -0.927 1.910 -0.887

Atom - Atom Distances (Å)
  C1 C2 H3 C4 C5 H6 H7 H8 H9 H10 H11 H12
C11.51051.08721.50231.50232.23522.23522.22102.22102.15202.16352.1635
C21.51052.20372.60432.60433.50673.50672.76942.76941.09541.09461.0946
H31.08722.20372.20332.20332.49392.49393.09343.09343.09512.57492.5749
C41.50232.60432.20331.50711.08442.23291.08592.22922.73983.08383.4904
C51.50232.60432.20331.50712.23291.08442.22921.08592.73983.49043.0838
H62.23523.50672.49391.08442.23292.52801.82603.11313.77753.81834.3662
H72.23523.50672.49392.23291.08442.52803.11311.82603.77754.36623.8183
H82.22102.76943.09341.08592.22921.82603.11312.51482.52693.12983.7758
H92.22102.76943.09342.22921.08593.11311.82602.51482.52693.77583.1298
H102.15201.09543.09512.73982.73983.77753.77752.52692.52691.76921.7692
H112.16351.09462.57493.08383.49043.81834.36623.12983.77581.76921.7737
H122.16351.09462.57493.49043.08384.36623.81833.77583.12981.76921.7737

picture of methylcyclopropane state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 H10 110.327 C1 C2 H11 111.294
C1 C2 H12 111.294 C1 C4 H5 59.895
C1 C4 H6 118.671 C1 C4 H8 117.305
C1 H5 C4 59.895 C1 H5 H7 118.671
C1 H5 H9 117.305 C2 C1 C3 115.091
C2 C1 C4 119.631 C2 C1 H5 119.631
C3 C1 C4 115.674 C3 C1 H5 115.674
C4 C1 H5 60.210 C4 H5 H7 118.079
C4 H5 H9 117.644 H5 C4 H6 118.079
H5 C4 H8 117.644 H6 C4 H8 114.567
H7 H5 H9 114.567 H10 C2 H11 107.774
H10 C2 H12 107.774 H11 C2 H12 108.236
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at M06-2X/6-31+G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.009      
2 C -0.603      
3 H 0.158      
4 C -0.335      
5 C -0.335      
6 H 0.163      
7 H 0.163      
8 H 0.158      
9 H 0.158      
10 H 0.143      
11 H 0.161      
12 H 0.161      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.046 0.137 0.000 0.144
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.560 0.179 0.000
y 0.179 -27.653 0.000
z 0.000 0.000 -27.425
Traceless
 xyz
x 1.979 0.179 0.000
y 0.179 -1.161 0.000
z 0.000 0.000 -0.818
Polar
3z2-r2-1.637
x2-y22.094
xy0.179
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.372 -0.439 0.000
y -0.439 7.165 0.000
z 0.000 0.000 6.726


<r2> (average value of r2) Å2
<r2> 83.379
(<r2>)1/2 9.131