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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: BLYP/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at BLYP/6-311+G(3df,2p)
 hartrees
Energy at 0K-116.603593
Energy at 298.15K-116.606719
HF Energy-116.603593
Nuclear repulsion energy63.503951
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 BLYP/6-311+G(3df,2p)
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 3204 3186 0.09 157.70 0.14 0.24
2 A1 2958 2942 73.05 137.45 0.14 0.25
3 A1 1675 1665 17.18 57.30 0.08 0.15
4 A1 1486 1478 1.86 11.69 0.23 0.37
5 A1 1104 1098 0.43 18.87 0.12 0.22
6 A1 895 890 3.68 5.32 0.54 0.70
7 A2 987 982 0.00 2.03 0.75 0.86
8 A2 826 821 0.00 0.99 0.75 0.86
9 B1 3017 3000 44.24 114.31 0.75 0.86
10 B1 1083 1077 1.38 0.15 0.75 0.86
11 B1 571 568 80.72 0.02 0.75 0.86
12 B2 3160 3143 0.13 91.87 0.75 0.86
13 B2 1033 1027 19.46 0.19 0.75 0.86
14 B2 996 991 41.68 0.00 0.75 0.86
15 B2 738 734 11.60 13.79 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11866.0 cm-1
Scaled (by 0.9945) Zero Point Vibrational Energy (zpe) 11800.7 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 BLYP/6-311+G(3df,2p)
ABC
1.00213 0.71996 0.45748

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.869
C2 0.000 0.648 -0.504
C3 0.000 -0.648 -0.504
H4 0.000 1.582 -1.050
H5 0.000 -1.582 -1.050
H6 0.917 0.000 1.468
H7 -0.917 0.000 1.468

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51911.51912.48692.48691.09451.0945
C21.51911.29651.08102.29562.26912.2691
C31.51911.29652.29561.08102.26912.2691
H42.48691.08102.29563.16323.11103.1110
H52.48692.29561.08103.16323.11103.1110
H61.09452.26912.26913.11103.11101.8334
H71.09452.26912.26913.11103.11101.8334

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.738 C1 C2 H4 145.563
C1 C3 C2 64.738 C1 C3 H5 145.563
C2 C1 C3 50.523 C2 C1 H6 119.614
C2 C1 H7 119.614 C2 C3 H5 149.699
C3 C1 H6 119.614 C3 C1 H7 119.614
C3 C2 H4 149.699 H6 C1 H7 113.758
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.397      
2 C -0.138      
3 C -0.138      
4 H 0.198      
5 H 0.198      
6 H 0.138      
7 H 0.138      


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 -0.455 0.455
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.816 0.000 0.000
y 0.000 -17.274 0.000
z 0.000 0.000 -18.963
Traceless
 xyz
x -1.698 0.000 0.000
y 0.000 2.115 0.000
z 0.000 0.000 -0.417
Polar
3z2-r2-0.835
x2-y2-2.542
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.222 0.000 0.000
y 0.000 5.640 0.000
z 0.000 0.000 5.819


<r2> (average value of r2) Å2
<r2> 37.496
(<r2>)1/2 6.123