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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: PBE1PBE/aug-cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at PBE1PBE/aug-cc-pVDZ
 hartrees
Energy at 0K-116.486238
Energy at 298.15K-116.489435
HF Energy-116.486238
Nuclear repulsion energy63.684362
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 PBE1PBE/aug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A1 3326 3198 0.17 146.85 0.13 0.22
2 A1 3062 2944 71.60 154.05 0.12 0.22
3 A1 1748 1681 15.15 66.17 0.07 0.12
4 A1 1507 1449 1.64 10.55 0.20 0.34
5 A1 1183 1138 0.34 16.34 0.12 0.21
6 A1 922 886 5.10 4.19 0.63 0.78
7 A2 1011 972 0.00 2.56 0.75 0.86
8 A2 829 797 0.00 0.95 0.75 0.86
9 B1 3135 3015 42.22 112.16 0.75 0.86
10 B1 1101 1059 1.33 0.10 0.75 0.86
11 B1 580 558 85.97 0.06 0.75 0.86
12 B2 3277 3151 0.63 78.45 0.75 0.86
13 B2 1065 1024 32.06 0.29 0.75 0.86
14 B2 1029 990 22.63 0.10 0.75 0.86
15 B2 811 780 20.01 13.71 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12293.1 cm-1
Scaled (by 0.9616) Zero Point Vibrational Energy (zpe) 11821.0 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 PBE1PBE/aug-cc-pVDZ
ABC
0.99853 0.73124 0.46138

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.860
C2 0.000 0.649 -0.500
C3 0.000 -0.649 -0.500
H4 0.000 1.586 -1.044
H5 0.000 -1.586 -1.044
H6 0.918 0.000 1.461
H7 -0.918 0.000 1.461

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50681.50682.47842.47841.09731.0973
C21.50681.29831.08362.30052.26022.2602
C31.50681.29832.30051.08362.26022.2602
H42.47841.08362.30053.17173.10403.1040
H52.47842.30051.08363.17173.10403.1040
H61.09732.26022.26023.10403.10401.8364
H71.09732.26022.26023.10403.10401.8364

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.481 C1 C2 H4 145.701
C1 C3 C2 64.481 C1 C3 H5 145.701
C2 C1 C3 51.038 C2 C1 H6 119.611
C2 C1 H7 119.611 C2 C3 H5 149.818
C3 C1 H6 119.611 C3 C1 H7 119.611
C3 C2 H4 149.818 H6 C1 H7 113.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.656      
2 C 0.409      
3 C 0.409      
4 H -0.368      
5 H -0.368      
6 H -0.369      
7 H -0.369      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -0.480 0.480
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.552 0.000 0.000
y 0.000 -16.810 0.000
z 0.000 0.000 -18.716
Traceless
 xyz
x -1.789 0.000 0.000
y 0.000 2.324 0.000
z 0.000 0.000 -0.535
Polar
3z2-r2-1.070
x2-y2-2.742
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.159 0.000 0.000
y 0.000 5.573 0.000
z 0.000 0.000 5.708


<r2> (average value of r2) Å2
<r2> 37.125
(<r2>)1/2 6.093