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

using model chemistry: HSEh1PBE/TZVP

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/TZVP
 hartrees
Energy at 0K-155.812803
Energy at 298.15K 
HF Energy-155.812803
Nuclear repulsion energy108.697886
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/TZVP
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' 3295 3163 0.76 111.51 0.30 0.46
2 A' 3133 3008 15.09 88.40 0.71 0.83
3 A' 3042 2921 16.53 298.08 0.00 0.01
4 A' 3040 2919 87.36 90.42 0.37 0.54
5 A' 1889 1813 15.06 71.49 0.15 0.26
6 A' 1527 1466 5.57 12.77 0.36 0.53
7 A' 1478 1419 11.27 14.43 0.60 0.75
8 A' 1402 1346 0.80 9.49 0.60 0.75
9 A' 1211 1163 2.37 6.84 0.45 0.62
10 A' 1096 1052 9.48 5.10 0.16 0.28
11 A' 1080 1037 33.02 0.25 0.75 0.86
12 A' 991 951 9.68 9.80 0.39 0.56
13 A' 948 910 14.98 4.85 0.54 0.70
14 A' 697 669 1.22 14.29 0.60 0.75
15 A' 326 313 2.12 1.51 0.75 0.86
16 A" 3104 2980 5.42 86.86 0.75 0.86
17 A" 3101 2977 56.70 108.29 0.75 0.86
18 A" 1474 1415 10.81 10.46 0.75 0.86
19 A" 1126 1081 1.08 0.91 0.75 0.86
20 A" 1054 1012 0.34 3.37 0.75 0.86
21 A" 989 950 2.72 5.53 0.75 0.86
22 A" 741 711 34.95 0.82 0.75 0.86
23 A" 301 289 14.26 0.64 0.75 0.86
24 A" 160 154 0.56 0.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18601.2 cm-1
Scaled (by 0.9601) Zero Point Vibrational Energy (zpe) 17859.0 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/TZVP
ABC
0.69588 0.21427 0.17481

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.179 0.000
C2 -0.031 -1.321 0.000
C3 1.152 -0.400 0.000
C4 -0.849 1.376 0.000
H5 -0.303 -1.856 0.913
H6 -0.303 -1.856 -0.913
H7 2.227 -0.343 0.000
H8 -0.254 2.291 0.000
H9 -1.501 1.381 -0.878
H10 -1.501 1.381 0.878

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.49961.28891.46732.25022.25022.28732.12742.11422.1142
C21.49961.49942.81761.09221.09222.46073.61843.19843.1984
C31.28891.49942.67462.25152.25151.07663.03543.31353.3135
C41.46732.81762.67463.40213.40213.52321.09151.09421.0942
H52.25021.09222.25153.40211.82513.08554.24623.88833.4516
H62.25021.09222.25153.40211.82513.08554.24623.45163.8883
H72.28732.46071.07663.52323.08553.08553.61814.20024.2002
H82.12743.61843.03541.09154.24624.24623.61811.77651.7765
H92.11423.19843.31351.09423.88833.45164.20021.77651.7565
H102.11423.19843.31351.09423.45163.88834.20021.77651.7565

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 50.905 H1 C2 C6 119.674
C2 C3 C6 24.890 C2 C3 C10 72.442
C2 C6 C3 35.298 C2 C6 H4 49.481
C2 C6 H5 33.329 C3 C2 C6 119.812
C3 C6 H4 51.722 C3 C6 H5 66.090
C3 C10 H7 9.387 C3 C10 H8 65.287
C3 C10 H9 74.630 H4 C6 H5 74.441
C6 C3 C10 86.428 H7 C10 H8 58.906
H7 C10 H9 77.930 H8 C10 H9 60.371
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.043      
2 C -0.264      
3 C -0.178      
4 C -0.372      
5 H 0.111      
6 H 0.111      
7 H 0.135      
8 H 0.135      
9 H 0.140      
10 H 0.140      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.198 0.904 0.000 0.926
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.543 -0.628 0.000
y -0.628 -25.214 0.000
z 0.000 0.000 -25.674
Traceless
 xyz
x 1.901 -0.628 0.000
y -0.628 -0.606 0.000
z 0.000 0.000 -1.295
Polar
3z2-r2-2.590
x2-y21.671
xy-0.628
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.303 -0.520 0.000
y -0.520 7.661 0.000
z 0.000 0.000 5.115


<r2> (average value of r2) Å2
<r2> 79.743
(<r2>)1/2 8.930