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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: PBEPBEultrafine/daug-cc-pVTZ

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/daug-cc-pVTZ
 hartrees
Energy at 0K-116.503134
Energy at 298.15K-116.506270
HF Energy-116.503134
Nuclear repulsion energy63.611077
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/daug-cc-pVTZ
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 3216 3216 0.01 163.59 0.12 0.22
2 A1 2972 2972 72.18 169.33 0.12 0.21
3 A1 1685 1685 13.96 60.46 0.06 0.12
4 A1 1470 1470 1.97 12.86 0.19 0.32
5 A1 1131 1131 0.61 15.36 0.11 0.20
6 A1 893 893 4.84 4.49 0.65 0.79
7 A2 987 987 0.00 2.02 0.75 0.86
8 A2 828 828 0.00 0.75 0.75 0.86
9 B1 3033 3033 42.21 120.50 0.75 0.86
10 B1 1076 1076 1.34 0.09 0.75 0.86
11 B1 580 580 78.72 0.12 0.75 0.86
12 B2 3171 3171 0.00 90.17 0.75 0.86
13 B2 1029 1029 25.18 0.18 0.75 0.86
14 B2 992 992 31.38 0.01 0.75 0.86
15 B2 772 772 15.47 12.76 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11916.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11916.9 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 PBEPBEultrafine/daug-cc-pVTZ
ABC
0.99904 0.72731 0.45998

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.864
C2 0.000 0.649 -0.501
C3 0.000 -0.649 -0.501
H4 0.000 1.585 -1.046
H5 0.000 -1.585 -1.046
H6 0.919 0.000 1.463
H7 -0.919 0.000 1.463

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51111.51112.48172.48171.09691.0969
C21.51111.29781.08332.29972.26322.2632
C31.51111.29782.29971.08332.26322.2632
H42.48171.08332.29973.17083.10643.1064
H52.48172.29971.08333.17083.10643.1064
H61.09692.26322.26323.10643.10641.8377
H71.09692.26322.26323.10643.10641.8377

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.570 C1 C2 H4 145.609
C1 C3 C2 64.570 C1 C3 H5 145.609
C2 C1 C3 50.860 C2 C1 H6 119.555
C2 C1 H7 119.555 C2 C3 H5 149.822
C3 C1 H6 119.555 C3 C1 H7 119.555
C3 C2 H4 149.822 H6 C1 H7 113.791
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.739      
2 C -0.352      
3 C -0.352      
4 H 0.624      
5 H 0.624      
6 H 0.097      
7 H 0.097      


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 -0.471 0.471
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.614 0.000 0.000
y 0.000 -17.050 0.000
z 0.000 0.000 -18.830
Traceless
 xyz
x -1.674 0.000 0.000
y 0.000 2.172 0.000
z 0.000 0.000 -0.497
Polar
3z2-r2-0.995
x2-y2-2.564
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.326 0.000 0.000
y 0.000 5.740 0.000
z 0.000 0.000 5.946


<r2> (average value of r2) Å2
<r2> 37.276
(<r2>)1/2 6.105