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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B3LYP/TZVP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at B3LYP/TZVP
 hartrees
Energy at 0K-116.662598
Energy at 298.15K-116.665813
HF Energy-116.662598
Nuclear repulsion energy63.948928
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 B3LYP/TZVP
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 3300 3186 0.07 141.02 0.14 0.24
2 A1 3040 2935 72.32 148.35 0.16 0.28
3 A1 1737 1677 16.97 50.06 0.12 0.21
4 A1 1528 1475 2.51 13.76 0.24 0.39
5 A1 1149 1110 0.35 13.45 0.16 0.27
6 A1 925 893 4.65 5.08 0.52 0.69
7 A2 1017 982 0.00 9.02 0.75 0.86
8 A2 871 841 0.00 0.00 0.75 0.86
9 B1 3102 2995 46.95 102.29 0.75 0.86
10 B1 1115 1077 1.73 1.07 0.75 0.86
11 B1 605 584 89.37 0.74 0.75 0.86
12 B2 3255 3142 0.26 77.76 0.75 0.86
13 B2 1077 1040 25.28 1.63 0.75 0.86
14 B2 1037 1001 41.06 0.16 0.75 0.86
15 B2 783 756 16.33 16.36 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12271.3 cm-1
Scaled (by 0.9654) Zero Point Vibrational Energy (zpe) 11846.7 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 B3LYP/TZVP
ABC
1.01470 0.73139 0.46425

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/TZVP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.862
C2 0.000 0.644 -0.500
C3 0.000 -0.644 -0.500
H4 0.000 1.574 -1.041
H5 0.000 -1.574 -1.041
H6 0.912 0.000 1.458
H7 -0.912 0.000 1.458

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50661.50662.46912.46911.08951.0895
C21.50661.28761.07552.28232.25432.2543
C31.50661.28762.28231.07552.25432.2543
H42.46911.07552.28233.14703.09093.0909
H52.46912.28231.07553.14703.09093.0909
H61.08952.25432.25433.09093.09091.8234
H71.08952.25432.25433.09093.09091.8234

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.702 C1 C2 H4 145.475
C1 C3 C2 64.702 C1 C3 H5 145.475
C2 C1 C3 50.595 C2 C1 H6 119.670
C2 C1 H7 119.670 C2 C3 H5 149.823
C3 C1 H6 119.670 C3 C1 H7 119.670
C3 C2 H4 149.823 H6 C1 H7 113.607
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.259      
2 C -0.126      
3 C -0.126      
4 H 0.141      
5 H 0.141      
6 H 0.114      
7 H 0.114      


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 -0.477 0.477
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.568 0.000 0.000
y 0.000 -17.063 0.000
z 0.000 0.000 -18.706
Traceless
 xyz
x -1.683 0.000 0.000
y 0.000 2.074 0.000
z 0.000 0.000 -0.391
Polar
3z2-r2-0.783
x2-y2-2.505
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.549 0.000 0.000
y 0.000 5.239 0.000
z 0.000 0.000 5.491


<r2> (average value of r2) Å2
<r2> 36.989
(<r2>)1/2 6.082