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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: TPSSh/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 TPSSh/cc-pVTZ
 hartrees
Energy at 0K-116.673936
Energy at 298.15K-116.677166
HF Energy-116.673936
Nuclear repulsion energy63.933910
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 TPSSh/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 3288 3184 0.02 153.77 0.16 0.27
2 A1 3032 2936 80.44 153.43 0.14 0.25
3 A1 1726 1671 15.91 45.44 0.15 0.25
4 A1 1529 1480 3.01 14.80 0.22 0.36
5 A1 1164 1127 0.74 13.44 0.14 0.24
6 A1 930 901 3.72 5.59 0.61 0.76
7 A2 1022 989 0.00 6.65 0.75 0.86
8 A2 865 838 0.00 0.11 0.75 0.86
9 B1 3093 2995 52.04 102.74 0.75 0.86
10 B1 1112 1077 2.03 1.24 0.75 0.86
11 B1 611 591 75.58 0.72 0.75 0.86
12 B2 3241 3138 0.13 83.03 0.75 0.86
13 B2 1075 1040 29.67 0.04 0.75 0.86
14 B2 1039 1006 27.94 0.00 0.75 0.86
15 B2 804 779 15.39 15.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12264.4 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 11875.6 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 TPSSh/cc-pVTZ
ABC
1.01077 0.73347 0.46434

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.860
C2 0.000 0.645 -0.499
C3 0.000 -0.645 -0.499
H4 0.000 1.576 -1.040
H5 0.000 -1.576 -1.040
H6 0.913 0.000 1.456
H7 -0.913 0.000 1.456

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50501.50502.46862.46861.09001.0900
C21.50501.29071.07602.28592.25272.2527
C31.50501.29072.28591.07602.25272.2527
H42.46861.07602.28593.15153.09003.0900
H52.46862.28591.07603.15153.09003.0900
H61.09002.25272.25273.09003.09001.8251
H71.09002.25272.25273.09003.09001.8251

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.609 C1 C2 H4 145.549
C1 C3 C2 64.609 C1 C3 H5 145.549
C2 C1 C3 50.781 C2 C1 H6 119.612
C2 C1 H7 119.612 C2 C3 H5 149.841
C3 C1 H6 119.612 C3 C1 H7 119.612
C3 C2 H4 149.841 H6 C1 H7 113.683
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.156      
2 C -0.104      
3 C -0.104      
4 H 0.108      
5 H 0.108      
6 H 0.075      
7 H 0.075      


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 -0.485 0.485
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.564 0.000 0.000
y 0.000 5.216 0.000
z 0.000 0.000 5.382


<r2> (average value of r2) Å2
<r2> 36.831
(<r2>)1/2 6.069