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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: HF/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 HF/Def2TZVPP
 hartrees
Energy at 0K-115.869733
Energy at 298.15K-115.873121
HF Energy-115.869733
Nuclear repulsion energy64.561786
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 HF/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 3461 3137 0.67 112.95 0.14 0.24
2 A1 3180 2882 86.26 141.20 0.16 0.27
3 A1 1853 1680 26.02 69.51 0.11 0.20
4 A1 1642 1489 1.78 13.16 0.16 0.28
5 A1 1236 1120 0.02 16.31 0.15 0.26
6 A1 1007 913 3.37 5.57 0.52 0.68
7 A2 1099 996 0.00 6.83 0.75 0.86
8 A2 990 897 0.00 0.59 0.75 0.86
9 B1 3237 2934 55.91 99.10 0.75 0.86
10 B1 1198 1086 3.36 0.60 0.75 0.86
11 B1 693 629 102.21 0.09 0.75 0.86
12 B2 3411 3092 0.99 64.42 0.75 0.86
13 B2 1187 1076 22.35 0.04 0.75 0.86
14 B2 1159 1051 41.25 0.00 0.75 0.86
15 B2 868 787 21.67 16.17 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 13111.0 cm-1
Scaled (by 0.9064) Zero Point Vibrational Energy (zpe) 11883.8 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 HF/Def2TZVPP
ABC
1.03848 0.74261 0.47287

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.855
C2 0.000 0.636 -0.497
C3 0.000 -0.636 -0.497
H4 0.000 1.558 -1.031
H5 0.000 -1.558 -1.031
H6 0.903 0.000 1.449
H7 -0.903 0.000 1.449

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.49411.49412.44612.44611.08031.0803
C21.49411.27151.06542.25752.23712.2371
C31.49411.27152.25751.06542.23712.2371
H42.44611.06542.25753.11553.06423.0642
H52.44612.25751.06543.11553.06423.0642
H61.08032.23712.23713.06423.06421.8052
H71.08032.23712.23713.06423.06421.8052

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.818 C1 C2 H4 145.249
C1 C3 C2 64.818 C1 C3 H5 145.249
C2 C1 C3 50.363 C2 C1 H6 119.820
C2 C1 H7 119.820 C2 C3 H5 149.933
C3 C1 H6 119.820 C3 C1 H7 119.820
C3 C2 H4 149.933 H6 C1 H7 113.336
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.075      
2 C -0.144      
3 C -0.144      
4 H 0.148      
5 H 0.148      
6 H 0.033      
7 H 0.033      


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 -0.511 0.511
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.688 0.000 0.000
y 0.000 -16.749 0.000
z 0.000 0.000 -18.676
Traceless
 xyz
x -1.976 0.000 0.000
y 0.000 2.433 0.000
z 0.000 0.000 -0.457
Polar
3z2-r2-0.914
x2-y2-2.939
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.640 0.000 0.000
y 0.000 5.175 0.000
z 0.000 0.000 5.250


<r2> (average value of r2) Å2
<r2> 36.481
(<r2>)1/2 6.040