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

using model chemistry: B97D3/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at B97D3/6-311G*
 hartrees
Energy at 0K-155.872620
Energy at 298.15K 
HF Energy-155.872620
Nuclear repulsion energy107.940241
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 B97D3/6-311G*
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' 3193 3193 4.20 136.75 0.32 0.49
2 A' 3046 3046 31.45 101.47 0.71 0.83
3 A' 2963 2963 33.82 238.96 0.01 0.03
4 A' 2948 2948 119.96 136.30 0.22 0.36
5 A' 1828 1828 13.35 60.31 0.20 0.34
6 A' 1507 1507 8.75 16.36 0.34 0.50
7 A' 1471 1471 10.47 19.55 0.63 0.77
8 A' 1388 1388 0.21 15.21 0.61 0.76
9 A' 1176 1176 0.97 5.79 0.43 0.60
10 A' 1063 1063 9.92 2.76 0.26 0.42
11 A' 1036 1036 32.93 0.13 0.66 0.79
12 A' 963 963 5.06 8.79 0.50 0.67
13 A' 913 913 16.22 6.25 0.53 0.70
14 A' 673 673 0.67 14.79 0.61 0.75
15 A' 312 312 1.89 1.64 0.75 0.85
16 A" 3013 3013 13.55 100.67 0.75 0.86
17 A" 3003 3003 99.96 124.62 0.75 0.86
18 A" 1465 1465 8.60 12.91 0.75 0.86
19 A" 1110 1110 0.81 2.00 0.75 0.86
20 A" 1033 1033 0.50 3.24 0.75 0.86
21 A" 974 974 2.63 7.38 0.75 0.86
22 A" 683 683 29.99 0.87 0.75 0.86
23 A" 281 281 12.50 0.80 0.75 0.86
24 A" 160 160 0.42 0.40 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 18101.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 18101.1 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 B97D3/6-311G*
ABC
0.68709 0.21112 0.17225

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/6-311G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.180 0.000
C2 -0.036 -1.330 0.000
C3 1.159 -0.409 0.000
C4 -0.848 1.389 0.000
H5 -0.313 -1.868 0.917
H6 -0.313 -1.868 -0.917
H7 2.241 -0.354 0.000
H8 -0.250 2.308 0.000
H9 -1.506 1.400 -0.881
H10 -1.506 1.400 0.881

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51051.30041.47682.26602.26602.30392.14262.12952.1295
C21.51051.50922.83751.09881.09882.47783.64433.22383.2238
C31.30041.50922.69512.26712.26711.08323.06063.34023.3402
C41.47682.83752.69513.42583.42583.54721.09701.09981.0998
H52.26601.09882.26713.42581.83363.10824.27633.91673.4798
H62.26601.09882.26713.42581.83363.10824.27633.47983.9167
H72.30392.47781.08323.54723.10823.10823.64554.23064.2306
H82.14263.64433.06061.09704.27634.27633.64551.78311.7831
H92.12953.22383.34021.09983.91673.47984.23061.78311.7623
H102.12953.22383.34021.09983.47983.91674.23061.78311.7623

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 51.017 H1 C2 C6 119.730
C2 C3 C6 24.835 C2 C3 C10 72.442
C2 C6 C3 35.234 C2 C6 H4 49.475
C2 C6 H5 33.447 C3 C2 C6 119.931
C3 C6 H4 51.769 C3 C6 H5 66.147
C3 C10 H7 9.412 C3 C10 H8 65.347
C3 C10 H9 74.704 H4 C6 H5 74.478
C6 C3 C10 86.381 H7 C10 H8 58.924
H7 C10 H9 77.979 H8 C10 H9 60.385
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.147      
2 C -0.405      
3 C -0.230      
4 C -0.717      
5 H 0.182      
6 H 0.182      
7 H 0.175      
8 H 0.218      
9 H 0.224      
10 H 0.224      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.145 0.886 0.000 0.898
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.549 -0.583 0.000
y -0.583 -25.287 0.000
z 0.000 0.000 -25.666
Traceless
 xyz
x 1.928 -0.583 0.000
y -0.583 -0.679 0.000
z 0.000 0.000 -1.248
Polar
3z2-r2-2.496
x2-y21.738
xy-0.583
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.106 -0.590 0.000
y -0.590 7.559 0.000
z 0.000 0.000 4.693


<r2> (average value of r2) Å2
<r2> 80.697
(<r2>)1/2 8.983