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All results from a given calculation for C2H4O (Ethylene oxide)

using model chemistry: TPSSh/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 TPSSh/daug-cc-pVDZ
 hartrees
Energy at 0K-153.822828
Energy at 298.15K 
HF Energy-153.822828
Nuclear repulsion energy74.813960
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 TPSSh/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 3095 3095 19.21 262.03 0.06 0.12
2 A1 1532 1532 2.91 2.71 0.33 0.50
3 A1 1298 1298 13.25 31.80 0.11 0.20
4 A1 1134 1134 0.01 3.81 0.15 0.26
5 A1 897 897 69.90 8.02 0.74 0.85
6 A2 3179 3179 0.00 122.09 0.75 0.86
7 A2 1163 1163 0.00 0.88 0.75 0.86
8 A2 1033 1033 0.00 0.01 0.75 0.86
9 B1 3195 3195 51.33 24.82 0.75 0.86
10 B1 1150 1150 3.52 3.53 0.75 0.86
11 B1 803 803 0.10 3.29 0.75 0.86
12 B2 3089 3089 44.53 11.42 0.75 0.86
13 B2 1496 1496 0.00 3.46 0.75 0.86
14 B2 1141 1141 0.10 0.43 0.75 0.86
15 B2 840 840 11.02 3.32 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 12522.0 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 12522.0 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 TPSSh/daug-cc-pVDZ
ABC
0.84247 0.73419 0.46752

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.861
C2 0.000 0.735 -0.377
C3 0.000 -0.735 -0.377
H4 0.926 1.274 -0.590
H5 -0.926 1.274 -0.590
H6 -0.926 -1.274 -0.590
H7 0.926 -1.274 -0.590

Atom - Atom Distances (Å)
  O1 C2 C3 H4 H5 H6 H7
O11.44001.44002.14122.14122.14122.1412
C21.44001.47001.09211.09212.22192.2219
C31.44001.47002.22192.22191.09211.0921
H42.14121.09212.22191.85193.14922.5471
H52.14121.09212.22191.85192.54713.1492
H62.14122.22191.09213.14922.54711.8519
H72.14122.22191.09212.54713.14921.8519

picture of Ethylene oxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 C3 59.308 O1 C2 H4 114.784
O1 C2 H5 114.784 O1 C3 C2 59.308
O1 C3 H6 114.784 O1 C3 H7 114.784
C2 O1 C3 61.383 C2 C3 H6 119.546
C2 C3 H7 119.546 C3 C2 H4 119.546
C3 C2 H5 119.546 H4 C2 H5 115.962
H6 C3 H7 115.962
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.610      
2 C 1.505      
3 C 1.505      
4 H -0.600      
5 H -0.600      
6 H -0.600      
7 H -0.600      


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 -1.880 1.880
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.065 0.000 0.000
y 0.000 4.951 0.000
z 0.000 0.000 4.078


<r2> (average value of r2) Å2
<r2> 36.872
(<r2>)1/2 6.072