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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-155.716075
Energy at 298.15K 
HF Energy-155.716075
Nuclear repulsion energy107.883459
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' 3353 3208 0.18 104.34 0.28 0.44
2 A' 3155 3018 18.25 88.60 0.72 0.84
3 A' 3091 2957 60.50 137.27 0.14 0.25
4 A' 3053 2920 27.38 181.05 0.02 0.04
5 A' 1890 1808 10.12 50.52 0.20 0.34
6 A' 1569 1501 5.37 17.18 0.40 0.57
7 A' 1527 1461 11.53 27.60 0.70 0.82
8 A' 1459 1396 2.26 21.08 0.58 0.73
9 A' 1226 1173 4.36 4.22 0.49 0.66
10 A' 1130 1081 15.99 0.97 0.39 0.57
11 A' 1114 1065 38.33 1.16 0.25 0.40
12 A' 1012 968 3.57 10.39 0.46 0.63
13 A' 968 926 14.35 9.51 0.61 0.76
14 A' 689 659 0.60 16.56 0.61 0.76
15 A' 333 318 2.09 1.40 0.73 0.85
16 A" 3162 3025 61.05 93.70 0.75 0.86
17 A" 3122 2986 14.84 92.91 0.75 0.86
18 A" 1523 1457 11.67 21.47 0.75 0.86
19 A" 1149 1099 0.04 2.51 0.75 0.86
20 A" 1084 1037 2.96 5.10 0.75 0.86
21 A" 1013 969 3.28 14.31 0.75 0.86
22 A" 760 727 42.85 1.31 0.75 0.86
23 A" 306 292 14.76 1.52 0.75 0.86
24 A" 152 145 0.56 0.38 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18917.8 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 18096.7 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
0.68438 0.21118 0.17204

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 0.183 0.000
C2 -0.072 -1.336 0.000
C3 1.150 -0.434 0.000
C4 -0.810 1.409 0.000
H5 -0.358 -1.865 0.911
H6 -0.358 -1.865 -0.911
H7 2.224 -0.402 0.000
H8 -0.186 2.308 0.000
H9 -1.464 1.443 -0.880
H10 -1.464 1.443 0.880

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.52131.30501.46922.27012.27012.29992.13222.12292.1229
C21.52131.51912.84271.09181.09182.47893.64543.23103.2310
C31.30501.51912.69022.27022.27021.07473.04913.33663.3366
C41.46922.84272.69023.42803.42803.53371.09431.09721.0972
H52.27011.09182.27023.42801.82293.10484.27403.92113.4881
H62.27011.09182.27023.42801.82293.10484.27403.48813.9211
H72.29992.47891.07473.53373.10483.10483.62614.21734.2173
H82.13223.64543.04911.09434.27404.27403.62611.77671.7767
H92.12293.23103.33661.09723.92113.48814.21731.77671.7602
H102.12293.23103.33661.09723.48813.92114.21731.77671.7602

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 50.837 H1 C2 C6 119.725
C2 C3 C6 24.637 C2 C3 C10 72.782
C2 C6 C3 35.452 C2 C6 H4 49.493
C2 C6 H5 33.405 C3 C2 C6 119.911
C3 C6 H4 51.601 C3 C6 H5 66.329
C3 C10 H7 9.416 C3 C10 H8 65.098
C3 C10 H9 74.706 H4 C6 H5 74.581
C6 C3 C10 86.552 H7 C10 H8 58.661
H7 C10 H9 77.955 H8 C10 H9 60.308
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 0.049      
2 C -0.357      
3 C -0.156      
4 C -0.568      
5 H 0.149      
6 H 0.149      
7 H 0.173      
8 H 0.183      
9 H 0.188      
10 H 0.188      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.182 0.898 0.000 0.916
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.288 -0.586 0.000
y -0.586 -24.704 0.000
z 0.000 0.000 -25.429
Traceless
 xyz
x 1.779 -0.586 0.000
y -0.586 -0.346 0.000
z 0.000 0.000 -1.434
Polar
3z2-r2-2.867
x2-y21.416
xy-0.586
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 6.406 -0.479 0.000
y -0.479 6.768 0.000
z 0.000 0.000 4.080


<r2> (average value of r2) Å2
<r2> 80.488
(<r2>)1/2 8.971