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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: PBEPBE/daug-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 PBEPBE/daug-cc-pVDZ
 hartrees
Energy at 0K-116.473024
Energy at 298.15K-116.476126
HF Energy-116.473024
Nuclear repulsion energy63.184365
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/daug-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 A1 3227 3227 0.04 171.38 0.12 0.22
2 A1 2974 2974 76.10 173.65 0.12 0.21
3 A1 1684 1684 14.14 63.84 0.06 0.11
4 A1 1458 1458 2.18 12.42 0.21 0.34
5 A1 1134 1134 0.64 15.90 0.11 0.20
6 A1 888 888 4.66 4.78 0.66 0.79
7 A2 975 975 0.00 2.18 0.75 0.86
8 A2 778 778 0.00 0.70 0.75 0.86
9 B1 3045 3045 45.81 124.78 0.75 0.86
10 B1 1064 1064 1.13 0.11 0.75 0.86
11 B1 544 544 79.28 0.18 0.75 0.86
12 B2 3180 3180 0.01 95.04 0.75 0.86
13 B2 1018 1018 30.87 0.11 0.75 0.86
14 B2 979 979 23.80 0.00 0.75 0.86
15 B2 768 768 15.96 13.27 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11858.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 11858.1 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/daug-cc-pVDZ
ABC
0.98278 0.71973 0.45403

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/daug-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 1.597 -1.053
H5 0.000 -1.597 -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
C11.51941.51942.49752.49751.10451.1045
C21.51941.30961.09052.31772.27712.2771
C31.51941.30962.31771.09052.27712.2771
H42.49751.09052.31773.19383.12693.1269
H52.49752.31771.09053.19383.12693.1269
H61.10452.27712.27713.12693.12691.8493
H71.10452.27712.27713.12693.12691.8493

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.473 C1 C2 H4 145.764
C1 C3 C2 64.473 C1 C3 H5 145.764
C2 C1 C3 51.054 C2 C1 H6 119.574
C2 C1 H7 119.574 C2 C3 H5 149.763
C3 C1 H6 119.574 C3 C1 H7 119.574
C3 C2 H4 149.763 H6 C1 H7 113.686
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.290      
2 C 1.375      
3 C 1.375      
4 H -0.645      
5 H -0.645      
6 H -0.875      
7 H -0.875      


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 -0.463 0.463
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.695 0.000 0.000
y 0.000 -17.088 0.000
z 0.000 0.000 -18.921
Traceless
 xyz
x -1.691 0.000 0.000
y 0.000 2.221 0.000
z 0.000 0.000 -0.530
Polar
3z2-r2-1.059
x2-y2-2.608
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.382 0.000 0.000
y 0.000 5.834 0.000
z 0.000 0.000 6.040


<r2> (average value of r2) Å2
<r2> 37.659
(<r2>)1/2 6.137