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

using model chemistry: wB97X-D/STO-3G

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/STO-3G
 hartrees
Energy at 0K-154.014070
Energy at 298.15K 
HF Energy-154.014070
Nuclear repulsion energy107.125662
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/STO-3G
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' 3570 3570 38.76 48.98 0.32 0.49
2 A' 3515 3515 0.31 36.77 0.75 0.86
3 A' 3359 3359 2.71 42.51 0.15 0.25
4 A' 3338 3338 0.14 62.57 0.01 0.02
5 A' 2046 2046 2.00 21.52 0.18 0.30
6 A' 1692 1692 5.62 14.42 0.64 0.78
7 A' 1674 1674 5.79 21.45 0.72 0.83
8 A' 1568 1568 0.77 13.57 0.61 0.76
9 A' 1369 1369 1.00 4.25 0.44 0.61
10 A' 1257 1257 31.37 2.10 0.20 0.33
11 A' 1195 1195 12.96 0.11 0.39 0.56
12 A' 1080 1080 1.54 6.80 0.59 0.74
13 A' 1037 1037 9.10 12.11 0.61 0.76
14 A' 763 763 0.63 12.47 0.55 0.71
15 A' 344 344 0.70 0.83 0.71 0.83
16 A" 3495 3495 5.81 37.05 0.75 0.86
17 A" 3495 3495 2.82 39.05 0.75 0.86
18 A" 1669 1669 5.63 17.14 0.75 0.86
19 A" 1204 1204 1.32 1.29 0.75 0.86
20 A" 1151 1151 5.60 3.93 0.75 0.86
21 A" 1091 1091 3.54 8.26 0.75 0.86
22 A" 819 819 17.19 0.74 0.75 0.86
23 A" 323 323 5.97 1.17 0.75 0.86
24 A" 109 109 0.18 0.16 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 20580.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 20580.4 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/STO-3G
ABC
0.68338 0.20611 0.16880

See section I.F.4 to change rotational constant units
Geometric Data calculated at wB97X-D/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.173 0.000
C2 -0.077 -1.345 0.000
C3 1.147 -0.452 0.000
C4 -0.810 1.441 0.000
H5 -0.367 -1.880 0.918
H6 -0.367 -1.880 -0.918
H7 2.235 -0.421 0.000
H8 -0.151 2.322 0.000
H9 -1.457 1.480 -0.891
H10 -1.457 1.480 0.891

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51981.30611.50482.27782.27782.31282.15492.15082.1508
C21.51981.51522.88111.10081.10082.48983.66823.26833.2683
C31.30611.51522.72262.27432.27431.08863.06303.36273.3627
C41.50482.88112.72263.47343.47343.56931.09991.10171.1017
H52.27781.10082.27433.47341.83533.12104.30623.96833.5324
H62.27781.10082.27433.47341.83533.12104.30623.53243.9683
H72.31282.48981.08863.56933.12103.12103.63634.24754.2475
H82.15493.66823.06301.09994.30624.30623.63631.79051.7905
H92.15083.26833.36271.10173.96833.53244.24751.79051.7814
H102.15083.26833.36271.10173.53243.96834.24751.79051.7814

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 50.979 H1 C2 C6 119.873
C2 C3 C6 24.798 C2 C3 C10 73.340
C2 C6 C3 35.262 C2 C6 H4 49.408
C2 C6 H5 33.529 C3 C2 C6 119.941
C3 C6 H4 51.550 C3 C6 H5 66.204
C3 C10 H7 9.625 C3 C10 H8 64.776
C3 C10 H9 74.640 H4 C6 H5 74.681
C6 C3 C10 87.252 H7 C10 H8 58.160
H7 C10 H9 77.895 H8 C10 H9 60.168
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at wB97X-D/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.012      
2 C -0.149      
3 C -0.113      
4 C -0.229      
5 H 0.061      
6 H 0.061      
7 H 0.098      
8 H 0.093      
9 H 0.094      
10 H 0.094      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.087 0.793 0.000 0.798
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -22.099 -0.544 0.000
y -0.544 -23.316 0.000
z 0.000 0.000 -23.531
Traceless
 xyz
x 1.325 -0.544 0.000
y -0.544 -0.501 0.000
z 0.000 0.000 -0.823
Polar
3z2-r2-1.646
x2-y21.217
xy-0.544
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.597 -0.430 0.000
y -0.430 3.704 0.000
z 0.000 0.000 1.951


<r2> (average value of r2) Å2
<r2> 80.763
(<r2>)1/2 8.987