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

using model chemistry: HSEh1PBE/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 HSEh1PBE/6-31G*
 hartrees
Energy at 0K-155.762206
Energy at 298.15K 
HF Energy-155.762206
Nuclear repulsion energy108.358389
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/6-31G*
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' 3313 3151 0.19 108.65 0.30 0.46
2 A' 3155 3001 15.90 86.13 0.72 0.84
3 A' 3061 2911 17.16 245.49 0.01 0.01
4 A' 3057 2908 87.52 60.96 0.46 0.63
5 A' 1905 1811 10.92 52.76 0.21 0.35
6 A' 1557 1481 8.99 16.57 0.39 0.56
7 A' 1508 1434 9.57 23.52 0.69 0.82
8 A' 1429 1359 0.20 17.83 0.60 0.75
9 A' 1232 1172 1.05 4.95 0.45 0.62
10 A' 1117 1063 18.01 2.06 0.30 0.46
11 A' 1090 1037 23.70 0.18 0.71 0.83
12 A' 1003 954 7.37 9.62 0.50 0.67
13 A' 958 911 13.73 8.42 0.63 0.78
14 A' 707 672 0.56 16.09 0.58 0.74
15 A' 324 308 1.85 1.32 0.74 0.85
16 A" 3124 2971 6.41 88.73 0.75 0.86
17 A" 3116 2963 70.09 97.35 0.75 0.86
18 A" 1504 1430 8.51 17.94 0.75 0.86
19 A" 1142 1086 0.49 2.64 0.75 0.86
20 A" 1065 1013 1.20 5.35 0.75 0.86
21 A" 1001 952 3.16 11.53 0.75 0.86
22 A" 736 700 28.92 1.14 0.75 0.86
23 A" 302 287 10.75 1.23 0.75 0.86
24 A" 161 153 0.51 0.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18782.4 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 17862.1 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/6-31G*
ABC
0.69409 0.21253 0.17357

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.180 0.000
C2 -0.033 -1.323 0.000
C3 1.155 -0.408 0.000
C4 -0.848 1.383 0.000
H5 -0.310 -1.863 0.913
H6 -0.310 -1.863 -0.913
H7 2.233 -0.355 0.000
H8 -0.251 2.300 0.000
H9 -1.503 1.393 -0.880
H10 -1.503 1.393 0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.50311.29571.47232.25852.25852.29642.13502.12242.1224
C21.50311.49932.82641.09611.09612.46443.62963.21113.2111
C31.29571.49932.68692.25742.25741.07993.05083.32863.3286
C41.47232.82642.68693.41443.41443.53771.09431.09701.0970
H52.25851.09612.25743.41441.82563.09484.26203.90323.4672
H62.25851.09612.25743.41441.82563.09484.26203.46723.9032
H72.29642.46441.07993.53773.09483.09483.63554.21744.2174
H82.13503.62963.05081.09434.26204.26203.63551.77921.7792
H92.12243.21113.32861.09703.90323.46724.21741.77921.7603
H102.12243.21113.32861.09703.46723.90324.21741.77921.7603

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 51.130 H1 C2 C6 119.849
C2 C3 C6 24.848 C2 C3 C10 72.412
C2 C6 C3 35.084 C2 C6 H4 49.400
C2 C6 H5 33.613 C3 C2 C6 120.068
C3 C6 H4 51.792 C3 C6 H5 66.149
C3 C10 H7 9.390 C3 C10 H8 65.363
C3 C10 H9 74.667 H4 C6 H5 74.494
C6 C3 C10 86.412 H7 C10 H8 58.973
H7 C10 H9 77.954 H8 C10 H9 60.351
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.160      
2 C -0.389      
3 C -0.206      
4 C -0.612      
5 H 0.149      
6 H 0.149      
7 H 0.166      
8 H 0.192      
9 H 0.195      
10 H 0.195      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.146 0.899 0.000 0.910
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.031 -0.586 0.000
y -0.586 -24.759 0.000
z 0.000 0.000 -25.178
Traceless
 xyz
x 1.938 -0.586 0.000
y -0.586 -0.654 0.000
z 0.000 0.000 -1.284
Polar
3z2-r2-2.567
x2-y21.728
xy-0.586
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.476 -0.512 0.000
y -0.512 6.798 0.000
z 0.000 0.000 4.188


<r2> (average value of r2) Å2
<r2> 79.898
(<r2>)1/2 8.939