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All results from a given calculation for C4H6 (1-Methylcyclopropene)

using model chemistry: wB97X-D/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at wB97X-D/6-31G*
 hartrees
Energy at 0K-155.888750
Energy at 298.15K 
HF Energy-155.888750
Nuclear repulsion energy108.212682
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 wB97X-D/6-31G*
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' 3320 3149 0.07 103.37 0.30 0.46
2 A' 3157 2995 17.22 85.35 0.73 0.84
3 A' 3064 2906 47.79 228.52 0.05 0.09
4 A' 3062 2904 54.19 61.68 0.17 0.29
5 A' 1907 1809 11.71 49.25 0.21 0.35
6 A' 1562 1482 8.10 15.73 0.40 0.57
7 A' 1518 1440 9.27 23.25 0.70 0.83
8 A' 1440 1366 0.14 14.47 0.63 0.77
9 A' 1218 1155 2.45 4.45 0.46 0.63
10 A' 1111 1054 14.65 2.28 0.24 0.39
11 A' 1092 1035 28.90 0.13 0.67 0.80
12 A' 1000 949 5.65 10.08 0.49 0.65
13 A' 955 905 14.21 9.42 0.58 0.74
14 A' 699 663 0.46 16.52 0.58 0.74
15 A' 321 304 1.75 1.30 0.73 0.84
16 A" 3130 2969 5.46 85.40 0.75 0.86
17 A" 3125 2964 71.07 96.77 0.75 0.86
18 A" 1514 1436 8.63 18.40 0.75 0.86
19 A" 1144 1085 0.65 2.41 0.75 0.86
20 A" 1071 1016 1.48 4.83 0.75 0.86
21 A" 1003 951 2.74 12.69 0.75 0.86
22 A" 742 704 31.31 1.18 0.75 0.86
23 A" 298 283 11.20 1.38 0.75 0.86
24 A" 150 142 0.47 0.35 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18801.1 cm-1
Scaled (by 0.9485) Zero Point Vibrational Energy (zpe) 17832.8 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 wB97X-D/6-31G*
ABC
0.69052 0.21197 0.17299

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.179 0.000
C2 -0.026 -1.329 0.000
C3 1.158 -0.397 0.000
C4 -0.858 1.381 0.000
H5 -0.297 -1.868 0.913
H6 -0.297 -1.868 -0.913
H7 2.235 -0.333 0.000
H8 -0.264 2.299 0.000
H9 -1.510 1.384 -0.881
H10 -1.510 1.384 0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.50811.29331.47732.26112.26112.29242.13632.12362.1236
C21.50811.50632.83521.09481.09482.47013.63573.21583.2158
C31.29331.50632.68862.26172.26171.07863.04793.32683.3268
C41.47732.83522.68863.42153.42153.53611.09381.09601.0960
H52.26111.09482.26173.42151.82673.09884.26603.90753.4712
H62.26111.09482.26173.42151.82673.09884.26603.47123.9075
H72.29242.47011.07863.53613.09883.09883.62834.21254.2125
H82.13633.63573.04791.09384.26604.26603.62831.77961.7796
H92.12363.21583.32681.09603.90753.47124.21251.77961.7627
H102.12363.21583.32681.09603.47123.90754.21251.77961.7627

picture of 1-Methylcyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H1 C2 C3 50.815 H1 C2 C6 119.770
C2 C3 C6 24.793 C2 C3 C10 72.613
C2 C6 C3 35.234 C2 C6 H4 49.490
C2 C6 H5 33.463 C3 C2 C6 119.973
C3 C6 H4 51.695 C3 C6 H5 66.182
C3 C10 H7 9.433 C3 C10 H8 65.315
C3 C10 H9 74.637 H4 C6 H5 74.517
C6 C3 C10 86.518 H7 C10 H8 58.887
H7 C10 H9 77.923 H8 C10 H9 60.313
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.156      
2 C -0.380      
3 C -0.218      
4 C -0.588      
5 H 0.145      
6 H 0.145      
7 H 0.172      
8 H 0.187      
9 H 0.190      
10 H 0.190      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.143 0.893 0.000 0.905
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.960 -0.531 0.000
y -0.531 -24.710 0.000
z 0.000 0.000 -25.122
Traceless
 xyz
x 1.956 -0.531 0.000
y -0.531 -0.669 0.000
z 0.000 0.000 -1.287
Polar
3z2-r2-2.575
x2-y21.750
xy-0.531
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.462 -0.463 0.000
y -0.463 6.753 0.000
z 0.000 0.000 4.197


<r2> (average value of r2) Å2
<r2> 80.035
(<r2>)1/2 8.946