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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: mPW1PW91/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at mPW1PW91/6-311G*
 hartrees
Energy at 0K-116.611623
Energy at 298.15K-116.614842
HF Energy-116.611623
Nuclear repulsion energy63.982151
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 mPW1PW91/6-311G*
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 3320 3169 0.07 134.96 0.15 0.26
2 A1 3058 2919 82.06 137.37 0.17 0.29
3 A1 1754 1674 13.61 41.40 0.17 0.30
4 A1 1538 1468 2.41 13.91 0.26 0.41
5 A1 1187 1133 0.62 10.61 0.19 0.32
6 A1 927 885 5.85 5.18 0.59 0.74
7 A2 1029 982 0.00 10.01 0.75 0.86
8 A2 862 823 0.00 0.22 0.75 0.86
9 B1 3123 2981 61.13 99.67 0.75 0.86
10 B1 1125 1074 1.31 2.23 0.75 0.86
11 B1 601 573 86.47 0.68 0.75 0.86
12 B2 3271 3122 0.46 76.05 0.75 0.86
13 B2 1077 1028 40.97 0.31 0.75 0.86
14 B2 1037 990 24.58 0.02 0.75 0.86
15 B2 813 776 19.86 16.29 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12361.1 cm-1
Scaled (by 0.9544) Zero Point Vibrational Energy (zpe) 11797.4 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 mPW1PW91/6-311G*
ABC
1.01182 0.73523 0.46522

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.858
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 0.912 0.000 1.457
H7 -0.912 0.000 1.457

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.50241.50242.46722.46721.09111.0911
C21.50241.28961.07702.28572.25232.2523
C31.50241.28962.28571.07702.25232.2523
H42.46721.07702.28573.15183.09053.0905
H52.46722.28571.07703.15183.09053.0905
H61.09112.25232.25233.09053.09051.8241
H71.09112.25232.25233.09053.09051.8241

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.585 C1 C2 H4 145.588
C1 C3 C2 64.585 C1 C3 H5 145.588
C2 C1 C3 50.831 C2 C1 H6 119.718
C2 C1 H7 119.718 C2 C3 H5 149.827
C3 C1 H6 119.718 C3 C1 H7 119.718
C3 C2 H4 149.827 H6 C1 H7 113.423
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.423      
2 C -0.201      
3 C -0.201      
4 H 0.204      
5 H 0.204      
6 H 0.209      
7 H 0.209      


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 -0.508 0.508
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.348 0.000 0.000
y 0.000 -16.655 0.000
z 0.000 0.000 -18.325
Traceless
 xyz
x -1.858 0.000 0.000
y 0.000 2.182 0.000
z 0.000 0.000 -0.323
Polar
3z2-r2-0.646
x2-y2-2.693
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.067 0.000 0.000
y 0.000 4.870 0.000
z 0.000 0.000 5.031


<r2> (average value of r2) Å2
<r2> 36.745
(<r2>)1/2 6.062