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All results from a given calculation for CHOOCHO (diformyl ether)

using model chemistry: TPSSh/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 TPSSh/6-311G*
 hartrees
Energy at 0K-303.158981
Energy at 298.15K 
HF Energy-303.158981
Nuclear repulsion energy159.064512
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/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 3015 2904 116.36 125.25 0.30 0.46
2 A1 1903 1833 29.11 29.07 0.20 0.33
3 A1 1451 1397 0.00 2.51 0.33 0.50
4 A1 1125 1084 117.50 3.92 0.25 0.40
5 A1 527 508 0.23 10.07 0.35 0.52
6 A1 269 260 13.63 0.71 0.34 0.51
7 A2 1013 975 0.00 1.46 0.75 0.86
8 A2 180 173 0.00 0.37 0.75 0.86
9 B1 1019 981 0.24 2.70 0.75 0.86
10 B1 129 124 4.26 0.13 0.75 0.86
11 B2 2994 2884 0.32 2.02 0.75 0.86
12 B2 1826 1759 671.65 3.04 0.75 0.86
13 B2 1399 1348 9.15 8.11 0.75 0.86
14 B2 1046 1008 624.61 2.28 0.75 0.86
15 B2 700 674 45.92 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9298.4 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 8956.2 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/6-311G*
ABC
1.61579 0.08589 0.08155

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.392
C2 0.000 1.183 -0.322
C3 0.000 -1.183 -0.322
O4 0.000 2.240 0.222
O5 0.000 -2.240 0.222
H6 0.000 1.032 -1.413
H7 0.000 -1.032 -1.413

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38171.38172.24682.24682.07902.0790
C21.38172.36591.18873.46611.10152.4687
C31.38172.36593.46611.18872.46871.1015
O42.24681.18873.46614.48052.03283.6573
O52.24683.46611.18874.48053.65732.0328
H62.07901.10152.46872.03283.65732.0631
H72.07902.46871.10153.65732.03282.0631

picture of diformyl ether state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 O4 121.691 O1 C2 H6 113.211
O1 C3 O5 121.691 C2 O1 C3 117.775
O4 C2 H6 125.097
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.228      
2 C 0.212      
3 C 0.212      
4 O -0.270      
5 O -0.270      
6 H 0.172      
7 H 0.172      


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 -3.262 3.262
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 2.327 0.000 0.000
y 0.000 7.128 0.000
z 0.000 0.000 3.916


<r2> (average value of r2) Å2
<r2> 125.236
(<r2>)1/2 11.191