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All results from a given calculation for C3H4 (cyclopropene)

using model chemistry: HSEh1PBE/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2v 1A1
Energy calculated at HSEh1PBE/6-311+G(3df,2p)
 hartrees
Energy at 0K-116.522354
Energy at 298.15K-116.525592
HF Energy-116.522354
Nuclear repulsion energy64.137227
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 HSEh1PBE/6-311+G(3df,2p)
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 3314 3314 0.27 136.84 0.13 0.23
2 A1 3051 3051 69.41 133.18 0.14 0.24
3 A1 1748 1748 15.45 61.31 0.07 0.13
4 A1 1522 1522 1.25 10.10 0.24 0.39
5 A1 1180 1180 0.29 17.08 0.12 0.22
6 A1 930 930 5.21 4.16 0.62 0.76
7 A2 1024 1024 0.00 2.53 0.75 0.86
8 A2 877 877 0.00 0.93 0.75 0.86
9 B1 3115 3115 39.79 105.64 0.75 0.86
10 B1 1115 1115 1.56 0.10 0.75 0.86
11 B1 611 611 85.51 0.01 0.75 0.86
12 B2 3267 3267 0.62 74.47 0.75 0.86
13 B2 1081 1081 26.53 0.33 0.75 0.86
14 B2 1045 1045 31.13 0.12 0.75 0.86
15 B2 816 816 19.28 12.99 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12348.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12348.0 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 HSEh1PBE/6-311+G(3df,2p)
ABC
1.01585 0.73943 0.46771

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 0.856
C2 0.000 0.643 -0.497
C3 0.000 -0.643 -0.497
H4 0.000 1.574 -1.037
H5 0.000 -1.574 -1.037
H6 0.912 0.000 1.453
H7 -0.912 0.000 1.453

Atom - Atom Distances (Å)
  C1 C2 C3 H4 H5 H6 H7
C11.49811.49812.46122.46121.08961.0896
C21.49811.28631.07552.28152.24642.2464
C31.49811.28632.28151.07552.24642.2464
H42.46121.07552.28153.14733.08283.0828
H52.46122.28151.07553.14733.08283.0828
H61.08962.24642.24643.08283.08281.8232
H71.08962.24642.24643.08283.08281.8232

picture of cyclopropene state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C3 64.575 C1 C2 H4 145.527
C1 C3 C2 64.575 C1 C3 H5 145.527
C2 C1 C3 50.850 C2 C1 H6 119.647
C2 C1 H7 119.647 C2 C3 H5 149.898
C3 C1 H6 119.647 C3 C1 H7 119.647
C3 C2 H4 149.898 H6 C1 H7 113.580
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-311+G(3df,2p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.377      
2 C -0.098      
3 C -0.098      
4 H 0.176      
5 H 0.176      
6 H 0.111      
7 H 0.111      


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 -0.476 0.476
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -19.541 0.000 0.000
y 0.000 -16.758 0.000
z 0.000 0.000 -18.581
Traceless
 xyz
x -1.871 0.000 0.000
y 0.000 2.303 0.000
z 0.000 0.000 -0.431
Polar
3z2-r2-0.863
x2-y2-2.783
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.061 0.000 0.000
y 0.000 5.392 0.000
z 0.000 0.000 5.512


<r2> (average value of r2) Å2
<r2> 36.734
(<r2>)1/2 6.061