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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B2PLYP/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at B2PLYP/Def2TZVPP
 hartrees
Energy at 0K-116.553457
Energy at 298.15K-116.556670
HF Energy-116.393617
Nuclear repulsion energy63.957776
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 B2PLYP/Def2TZVPP
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 3323 3323 0.11 146.09 0.13 0.23
2 A1 3077 3077 65.05 144.15 0.14 0.25
3 A1 1713 1713 17.89 45.06 0.11 0.20
4 A1 1536 1536 1.55 13.67 0.20 0.34
5 A1 1156 1156 0.12 14.73 0.13 0.23
6 A1 930 930 4.28 5.06 0.54 0.71
7 A2 1025 1025 0.00 5.99 0.75 0.86
8 A2 866 866 0.00 0.10 0.75 0.86
9 B1 3146 3146 38.83 93.79 0.75 0.86
10 B1 1121 1121 1.69 0.86 0.75 0.86
11 B1 600 600 83.45 0.44 0.75 0.86
12 B2 3279 3279 0.39 76.35 0.75 0.86
13 B2 1079 1079 21.59 0.27 0.75 0.86
14 B2 1041 1041 37.71 0.05 0.75 0.86
15 B2 789 789 14.85 14.42 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12340.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12340.7 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 B2PLYP/Def2TZVPP
ABC
1.01168 0.73346 0.46434

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.861
C2 0.000 0.646 -0.500
C3 0.000 -0.646 -0.500
H4 0.000 1.573 -1.039
H5 0.000 -1.573 -1.039
H6 0.911 0.000 1.453
H7 -0.911 0.000 1.453

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50651.50652.46722.46721.08571.0857
C21.50651.29121.07302.28342.24912.2491
C31.50651.29122.28341.07302.24912.2491
H42.46721.07302.28343.14633.08453.0845
H52.46722.28341.07303.14633.08453.0845
H61.08572.24912.24913.08453.08451.8211
H71.08572.24912.24913.08453.08451.8211

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.625 C1 C2 H4 145.556
C1 C3 C2 64.625 C1 C3 H5 145.556
C2 C1 C3 50.751 C2 C1 H6 119.482
C2 C1 H7 119.482 C2 C3 H5 149.819
C3 C1 H6 119.482 C3 C1 H7 119.482
C3 C2 H4 149.819 H6 C1 H7 113.990
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.168      
2 C -0.152      
3 C -0.152      
4 H 0.165      
5 H 0.165      
6 H 0.070      
7 H 0.070      


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 -0.465 0.465
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.601 0.000 0.000
y 0.000 -17.045 0.000
z 0.000 0.000 -18.752
Traceless
 xyz
x -1.703 0.000 0.000
y 0.000 2.132 0.000
z 0.000 0.000 -0.429
Polar
3z2-r2-0.857
x2-y2-2.557
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.725 0.000 0.000
y 0.000 5.302 0.000
z 0.000 0.000 5.482


<r2> (average value of r2) Å2
<r2> 36.974
(<r2>)1/2 6.081