return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: B3LYPultrafine/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 B3LYPultrafine/6-311G*
 hartrees
Energy at 0K-303.157862
Energy at 298.15K 
HF Energy-303.157862
Nuclear repulsion energy159.344901
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 B3LYPultrafine/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 3013 2912 110.21 121.84 0.29 0.45
2 A1 1920 1855 33.50 27.26 0.20 0.33
3 A1 1457 1408 0.08 2.20 0.36 0.53
4 A1 1130 1092 119.26 3.66 0.26 0.42
5 A1 533 515 0.34 9.37 0.35 0.52
6 A1 276 267 13.43 0.73 0.38 0.55
7 A2 1020 986 0.00 1.63 0.75 0.86
8 A2 172 166 0.00 0.36 0.75 0.86
9 B1 1027 992 0.69 2.82 0.75 0.86
10 B1 128 124 4.00 0.12 0.75 0.86
11 B2 2988 2888 0.28 2.19 0.75 0.86
12 B2 1843 1781 676.40 3.13 0.75 0.86
13 B2 1404 1357 9.21 8.21 0.75 0.86
14 B2 1061 1025 634.26 2.12 0.75 0.86
15 B2 710 686 50.83 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9341.0 cm-1
Scaled (by 0.9663) Zero Point Vibrational Energy (zpe) 9026.2 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 B3LYPultrafine/6-311G*
ABC
1.62681 0.08604 0.08172

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/6-311G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.383
C2 0.000 1.185 -0.321
C3 0.000 -1.185 -0.321
O4 0.000 2.237 0.225
O5 0.000 -2.237 0.225
H6 0.000 1.043 -1.413
H7 0.000 -1.043 -1.413

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37811.37812.24222.24222.07752.0775
C21.37812.36981.18513.46491.10212.4816
C31.37812.36983.46491.18512.48161.1021
O42.24221.18513.46494.47342.02753.6665
O52.24223.46491.18514.47343.66652.0275
H62.07751.10212.48162.02753.66652.0861
H72.07752.48161.10213.66652.02752.0861

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 121.857 O1 C2 H6 113.314
O1 C3 O5 121.857 C2 O1 C3 118.585
O4 C2 H6 124.830
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.215      
2 C 0.186      
3 C 0.186      
4 O -0.251      
5 O -0.251      
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 -3.308 3.308
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.292 0.000 0.000
y 0.000 -38.451 0.000
z 0.000 0.000 -25.916
Traceless
 xyz
x 5.892 0.000 0.000
y 0.000 -12.347 0.000
z 0.000 0.000 6.455
Polar
3z2-r212.910
x2-y212.159
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.322 0.000 0.000
y 0.000 6.972 0.000
z 0.000 0.000 3.887


<r2> (average value of r2) Å2
<r2> 125.159
(<r2>)1/2 11.187