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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B3LYPultrafine/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at B3LYPultrafine/6-31G(2df,p)
 hartrees
Energy at 0K-116.630106
Energy at 298.15K-116.633347
HF Energy-116.630106
Nuclear repulsion energy63.882794
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 B3LYPultrafine/6-31G(2df,p)
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 3318 3202 0.02 133.27 0.13 0.23
2 A1 3039 2932 68.57 120.73 0.15 0.25
3 A1 1743 1682 12.59 34.11 0.17 0.29
4 A1 1526 1472 4.04 15.52 0.32 0.48
5 A1 1166 1125 1.16 9.48 0.14 0.25
6 A1 944 911 2.59 9.50 0.63 0.78
7 A2 1019 983 0.00 12.95 0.75 0.86
8 A2 884 853 0.00 0.00 0.75 0.86
9 B1 3100 2992 51.80 83.48 0.75 0.86
10 B1 1115 1076 2.37 2.34 0.75 0.86
11 B1 635 613 57.19 1.28 0.75 0.86
12 B2 3269 3154 0.02 71.68 0.75 0.86
13 B2 1077 1039 30.47 0.26 0.75 0.86
14 B2 1044 1007 27.45 0.31 0.75 0.86
15 B2 798 771 10.12 17.48 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12337.5 cm-1
Scaled (by 0.965) Zero Point Vibrational Energy (zpe) 11905.7 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 B3LYPultrafine/6-31G(2df,p)
ABC
1.01064 0.73138 0.46342

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-31G(2df,p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.861
C2 0.000 0.645 -0.501
C3 0.000 -0.645 -0.501
H4 0.000 1.577 -1.039
H5 0.000 -1.577 -1.039
H6 0.912 0.000 1.462
H7 -0.912 0.000 1.462

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50651.50652.46862.46861.09251.0925
C21.50651.29061.07572.28622.25862.2586
C31.50651.29062.28621.07572.25862.2586
H42.46861.07572.28623.15333.09413.0941
H52.46862.28621.07573.15333.09413.0941
H61.09252.25862.25863.09413.09411.8239
H71.09252.25862.25863.09413.09411.8239

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.638 C1 C2 H4 145.382
C1 C3 C2 64.638 C1 C3 H5 145.382
C2 C1 C3 50.723 C2 C1 H6 119.845
C2 C1 H7 119.845 C2 C3 H5 149.979
C3 C1 H6 119.845 C3 C1 H7 119.845
C3 C2 H4 149.979 H6 C1 H7 113.166
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.300      
2 C -0.085      
3 C -0.085      
4 H 0.139      
5 H 0.139      
6 H 0.096      
7 H 0.096      


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 -0.544 0.544
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.914 0.000 0.000
y 0.000 -16.645 0.000
z 0.000 0.000 -18.199
Traceless
 xyz
x -1.492 0.000 0.000
y 0.000 1.911 0.000
z 0.000 0.000 -0.420
Polar
3z2-r2-0.839
x2-y2-2.269
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.008 0.000 0.000
y 0.000 4.740 0.000
z 0.000 0.000 4.840


<r2> (average value of r2) Å2
<r2> 36.711
(<r2>)1/2 6.059