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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: B3LYP/daug-cc-pVDZ

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/daug-cc-pVDZ
 hartrees
Energy at 0K-116.632735
Energy at 298.15K-116.635901
HF Energy-116.632735
Nuclear repulsion energy63.516791
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/daug-cc-pVDZ
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 3297 3297 0.03 154.25 0.13 0.23
2 A1 3039 3039 75.75 161.74 0.12 0.22
3 A1 1727 1727 17.26 66.14 0.06 0.12
4 A1 1508 1508 1.94 11.90 0.19 0.32
5 A1 1149 1149 0.24 16.38 0.12 0.21
6 A1 916 916 3.82 5.21 0.61 0.76
7 A2 1002 1002 0.00 2.32 0.75 0.86
8 A2 819 819 0.00 1.13 0.75 0.86
9 B1 3109 3109 45.44 115.75 0.75 0.86
10 B1 1097 1097 1.36 0.03 0.75 0.86
11 B1 566 566 84.20 0.06 0.75 0.86
12 B2 3249 3249 0.15 86.14 0.75 0.86
13 B2 1056 1056 26.60 0.17 0.75 0.86
14 B2 1021 1021 31.26 0.00 0.75 0.86
15 B2 777 777 15.29 13.71 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12165.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12165.3 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/daug-cc-pVDZ
ABC
0.99836 0.72344 0.45818

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYP/daug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.866
C2 0.000 0.650 -0.503
C3 0.000 -0.650 -0.503
H4 0.000 1.584 -1.049
H5 0.000 -1.584 -1.049
H6 0.918 0.000 1.466
H7 -0.918 0.000 1.466

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.51531.51532.48552.48551.09651.0965
C21.51531.29931.08252.29972.26752.2675
C31.51531.29932.29971.08252.26752.2675
H42.48551.08252.29973.16863.11103.1110
H52.48552.29971.08253.16863.11103.1110
H61.09652.26752.26753.11103.11101.8354
H71.09652.26752.26753.11103.11101.8354

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.614 C1 C2 H4 145.685
C1 C3 C2 64.614 C1 C3 H5 145.685
C2 C1 C3 50.773 C2 C1 H6 119.634
C2 C1 H7 119.634 C2 C3 H5 149.701
C3 C1 H6 119.634 C3 C1 H7 119.634
C3 C2 H4 149.701 H6 C1 H7 113.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYP/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.401      
2 C 1.535      
3 C 1.535      
4 H -0.748      
5 H -0.748      
6 H -0.987      
7 H -0.987      


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 -19.704 0.000 0.000
y 0.000 -17.088 0.000
z 0.000 0.000 -18.919
Traceless
 xyz
x -1.700 0.000 0.000
y 0.000 2.223 0.000
z 0.000 0.000 -0.523
Polar
3z2-r2-1.046
x2-y2-2.616
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.276 0.000 0.000
y 0.000 5.695 0.000
z 0.000 0.000 5.868


<r2> (average value of r2) Å2
<r2> 37.403
(<r2>)1/2 6.116