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

using model chemistry: PBEPBE/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C1 1A
Energy calculated at PBEPBE/cc-pVDZ
 hartrees
Energy at 0K-155.733953
Energy at 298.15K 
HF Energy-155.733953
Nuclear repulsion energy107.294817
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 PBEPBE/cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A' 3197 3179 0.29 141.18 0.30 0.46
2 A' 3058 3040 13.88 100.75 0.72 0.84
3 A' 2958 2941 22.74 262.49 0.01 0.03
4 A' 2948 2930 83.04 137.32 0.20 0.33
5 A' 1827 1816 12.39 64.08 0.21 0.35
6 A' 1443 1435 7.05 18.11 0.39 0.56
7 A' 1399 1391 10.15 21.35 0.65 0.79
8 A' 1332 1325 0.46 19.64 0.54 0.70
9 A' 1169 1162 0.78 6.84 0.51 0.68
10 A' 1047 1041 14.64 3.76 0.35 0.51
11 A' 1013 1007 19.51 0.16 0.69 0.82
12 A' 955 949 7.41 7.01 0.45 0.62
13 A' 897 892 13.29 7.31 0.64 0.78
14 A' 669 665 0.84 17.39 0.61 0.76
15 A' 310 308 1.88 1.98 0.75 0.86
16 A" 3023 3005 2.74 104.13 0.75 0.86
17 A" 3014 2997 65.87 121.02 0.75 0.86
18 A" 1394 1386 8.26 14.48 0.75 0.86
19 A" 1067 1061 0.34 3.27 0.75 0.86
20 A" 997 991 0.65 4.85 0.75 0.86
21 A" 943 938 3.44 7.01 0.75 0.86
22 A" 692 688 22.54 0.89 0.75 0.86
23 A" 286 285 9.76 0.80 0.75 0.86
24 A" 163 162 0.60 0.37 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 17899.7 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 17795.9 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 PBEPBE/cc-pVDZ
ABC
0.67733 0.20937 0.17071

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.184 0.000
C2 -0.057 -1.334 0.000
C3 1.161 -0.429 0.000
C4 -0.830 1.405 0.000
H5 -0.345 -1.873 0.927
H6 -0.345 -1.873 -0.927
H7 2.254 -0.391 0.000
H8 -0.213 2.326 0.000
H9 -1.496 1.425 -0.889
H10 -1.496 1.425 0.889

Atom - Atom Distances (Å)
  C1 C2 C3 C4 H5 H6 H7 H8 H9 H10
C11.51911.31251.47662.28222.28222.32612.15242.13752.1375
C21.51911.51772.84621.11041.11042.49643.66313.23623.2362
C31.31251.51772.70662.28302.28301.09393.07803.35943.3594
C41.47662.84622.70663.44093.44093.56871.10801.11111.1111
H52.28221.11042.28303.44091.85493.13224.30163.93693.4931
H62.28221.11042.28303.44091.85493.13224.30163.49313.9369
H72.32612.49641.09393.56873.13223.13223.66944.26034.2603
H82.15243.66313.07801.10804.30164.30163.66941.80211.8021
H92.13753.23623.35941.11113.93693.49314.26031.80211.7778
H102.13753.23623.35941.11113.49313.93694.26031.80211.7778

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 51.214 H1 C2 C6 119.634
C2 C3 C6 24.959 C2 C3 C10 72.209
C2 C6 C3 35.224 C2 C6 H4 49.407
C2 C6 H5 33.357 C3 C2 C6 119.816
C3 C6 H4 51.752 C3 C6 H5 66.031
C3 C10 H7 9.407 C3 C10 H8 65.301
C3 C10 H9 74.657 H4 C6 H5 74.364
C6 C3 C10 86.268 H7 C10 H8 58.892
H7 C10 H9 77.957 H8 C10 H9 60.446
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.012      
2 C -0.027      
3 C -0.122      
4 C -0.027      
5 H 0.022      
6 H 0.022      
7 H -0.019      
8 H 0.051      
9 H 0.056      
10 H 0.056      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.183 0.956 0.000 0.974
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.474 -0.742 0.000
y -0.742 -25.131 0.000
z 0.000 0.000 -25.561
Traceless
 xyz
x 1.872 -0.742 0.000
y -0.742 -0.614 0.000
z 0.000 0.000 -1.258
Polar
3z2-r2-2.517
x2-y21.657
xy-0.742
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 7.083 -0.655 0.000
y -0.655 7.542 0.000
z 0.000 0.000 4.585


<r2> (average value of r2) Å2
<r2> 81.287
(<r2>)1/2 9.016