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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: BLYP/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 BLYP/cc-pVTZ
 hartrees
Energy at 0K-116.605925
Energy at 298.15K-116.609058
HF Energy-116.605925
Nuclear repulsion energy63.516798
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/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 3208 3198 0.24 167.75 0.16 0.27
2 A1 2964 2955 77.30 157.80 0.14 0.25
3 A1 1678 1673 15.51 41.27 0.16 0.27
4 A1 1486 1481 2.97 15.96 0.22 0.36
5 A1 1106 1103 0.76 12.70 0.14 0.24
6 A1 895 892 3.47 6.24 0.60 0.75
7 A2 988 985 0.00 7.04 0.75 0.86
8 A2 827 825 0.00 0.04 0.75 0.86
9 B1 3021 3012 50.82 105.84 0.75 0.86
10 B1 1085 1081 1.60 1.57 0.75 0.86
11 B1 573 571 70.11 0.94 0.75 0.86
12 B2 3164 3154 0.67 92.10 0.75 0.86
13 B2 1033 1030 21.21 0.11 0.75 0.86
14 B2 997 994 40.63 0.22 0.75 0.86
15 B2 741 739 10.71 15.56 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 11882.8 cm-1
Scaled (by 0.997) Zero Point Vibrational Energy (zpe) 11847.2 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/cc-pVTZ
ABC
1.00238 0.72033 0.45769

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

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 1.581 -1.049
H5 0.000 -1.581 -1.049
H6 0.917 0.000 1.467
H7 -0.917 0.000 1.467

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51871.51872.48622.48621.09441.0944
C21.51871.29641.08072.29522.26852.2685
C31.51871.29642.29521.08072.26852.2685
H42.48621.08072.29523.16263.11013.1101
H52.48622.29521.08073.16263.11013.1101
H61.09442.26852.26853.11013.11011.8335
H71.09442.26852.26853.11013.11011.8335

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.736 C1 C2 H4 145.558
C1 C3 C2 64.736 C1 C3 H5 145.558
C2 C1 C3 50.529 C2 C1 H6 119.601
C2 C1 H7 119.601 C2 C3 H5 149.707
C3 C1 H6 119.601 C3 C1 H7 119.601
C3 C2 H4 149.707 H6 C1 H7 113.785
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.180      
2 C -0.097      
3 C -0.097      
4 H 0.107      
5 H 0.107      
6 H 0.080      
7 H 0.080      


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 -0.481 0.481
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.591 0.000 0.000
y 0.000 -17.188 0.000
z 0.000 0.000 -18.841
Traceless
 xyz
x -1.576 0.000 0.000
y 0.000 2.028 0.000
z 0.000 0.000 -0.452
Polar
3z2-r2-0.903
x2-y2-2.402
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.637 0.000 0.000
y 0.000 5.347 0.000
z 0.000 0.000 5.563


<r2> (average value of r2) Å2
<r2> 37.394
(<r2>)1/2 6.115