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

using model chemistry: B3PW91/daug-cc-pVTZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B3PW91/daug-cc-pVTZ
 hartrees
Energy at 0K-303.076217
Energy at 298.15K 
HF Energy-303.076217
Nuclear repulsion energy159.952982
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 B3PW91/daug-cc-pVTZ
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 3008 3008 74.63 125.71 0.25 0.39
2 A1 1917 1917 30.58 49.46 0.15 0.26
3 A1 1434 1434 0.01 3.51 0.41 0.59
4 A1 1149 1149 102.42 2.11 0.11 0.20
5 A1 541 541 0.50 8.92 0.21 0.35
6 A1 276 276 14.15 0.62 0.25 0.39
7 A2 1016 1016 0.00 0.40 0.75 0.86
8 A2 180 180 0.00 0.40 0.75 0.86
9 B1 1028 1028 0.01 1.51 0.75 0.86
10 B1 132 132 5.20 0.07 0.75 0.86
11 B2 2988 2988 2.58 0.37 0.75 0.86
12 B2 1836 1836 708.38 2.29 0.75 0.86
13 B2 1379 1379 6.69 3.81 0.75 0.86
14 B2 1080 1080 668.08 2.28 0.75 0.86
15 B2 713 713 45.00 0.12 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9338.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9338.1 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 B3PW91/daug-cc-pVTZ
ABC
1.62939 0.08694 0.08254

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/daug-cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.386
C2 0.000 1.175 -0.320
C3 0.000 -1.175 -0.320
O4 0.000 2.227 0.223
O5 0.000 -2.227 0.223
H6 0.000 1.028 -1.412
H7 0.000 -1.028 -1.412

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37041.37042.23302.23302.07082.0708
C21.37042.34921.18443.44471.10142.4583
C31.37042.34923.44471.18442.45831.1014
O42.23301.18443.44474.45402.02743.6425
O52.23303.44471.18444.45403.64252.0274
H62.07081.10142.45832.02743.64252.0560
H72.07082.45831.10143.64252.02742.0560

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 113.360
O1 C3 O5 121.691 C2 O1 C3 117.986
O4 C2 H6 124.949
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/daug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.285      
2 C 0.358      
3 C 0.358      
4 O -1.229      
5 O -1.229      
6 H 1.014      
7 H 1.014      


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 -3.284 3.284
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.385 0.000 0.000
y 0.000 -39.090 0.000
z 0.000 0.000 -25.936
Traceless
 xyz
x 6.128 0.000 0.000
y 0.000 -12.930 0.000
z 0.000 0.000 6.802
Polar
3z2-r213.603
x2-y212.705
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.500 0.000 0.000
y 0.000 7.987 0.000
z 0.000 0.000 4.941


<r2> (average value of r2) Å2
<r2> 124.258
(<r2>)1/2 11.147