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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/aug-cc-pVDZ
 hartrees
Energy at 0K-116.472349
Energy at 298.15K-116.475444
HF Energy-116.472349
Nuclear repulsion energy63.172297
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 PBEPBEultrafine/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 3228 3209 0.05 169.69 0.13 0.23
2 A1 2976 2958 73.25 166.79 0.12 0.22
3 A1 1684 1674 14.00 62.81 0.07 0.13
4 A1 1459 1450 2.01 11.78 0.21 0.34
5 A1 1135 1128 0.70 16.56 0.12 0.21
6 A1 888 883 4.87 4.50 0.63 0.77
7 A2 975 969 0.00 2.31 0.75 0.86
8 A2 773 768 0.00 0.69 0.75 0.86
9 B1 3047 3028 44.92 124.02 0.75 0.86
10 B1 1066 1060 1.07 0.10 0.75 0.86
11 B1 541 538 80.33 0.13 0.75 0.86
12 B2 3182 3162 0.00 92.76 0.75 0.86
13 B2 1017 1011 29.77 0.11 0.75 0.86
14 B2 980 974 24.97 0.03 0.75 0.86
15 B2 767 763 15.88 14.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11858.6 cm-1
Scaled (by 0.9939) Zero Point Vibrational Energy (zpe) 11786.3 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 PBEPBEultrafine/aug-cc-pVDZ
ABC
0.98237 0.71953 0.45390

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.868
C2 0.000 0.655 -0.504
C3 0.000 -0.655 -0.504
H4 0.000 1.598 -1.053
H5 0.000 -1.598 -1.053
H6 0.925 0.000 1.472
H7 -0.925 0.000 1.472

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51951.51952.49842.49841.10491.1049
C21.51951.30951.09152.31872.27752.2775
C31.51951.30952.31871.09152.27752.2775
H42.49841.09152.31873.19573.12803.1280
H52.49842.31871.09153.19573.12803.1280
H61.10492.27752.27753.12803.12801.8500
H71.10492.27752.27753.12803.12801.8500

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.474 C1 C2 H4 145.756
C1 C3 C2 64.474 C1 C3 H5 145.756
C2 C1 C3 51.052 C2 C1 H6 119.574
C2 C1 H7 119.574 C2 C3 H5 149.770
C3 C1 H6 119.574 C3 C1 H7 119.574
C3 C2 H4 149.770 H6 C1 H7 113.685
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.794      
2 C 0.518      
3 C 0.518      
4 H -0.444      
5 H -0.444      
6 H -0.471      
7 H -0.471      


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 -0.470 0.470
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.673 0.000 0.000
y 0.000 -17.083 0.000
z 0.000 0.000 -18.939
Traceless
 xyz
x -1.662 0.000 0.000
y 0.000 2.223 0.000
z 0.000 0.000 -0.561
Polar
3z2-r2-1.122
x2-y2-2.590
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.313 0.000 0.000
y 0.000 5.792 0.000
z 0.000 0.000 5.988


<r2> (average value of r2) Å2
<r2> 37.668
(<r2>)1/2 6.137