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

using model chemistry: B97D3/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B97D3/3-21G
 hartrees
Energy at 0K-301.220423
Energy at 298.15K 
HF Energy-301.220423
Nuclear repulsion energy155.381400
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 B97D3/3-21G
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 2938 2888 124.18 106.89 0.30 0.46
2 A1 1809 1778 14.68 17.32 0.16 0.28
3 A1 1447 1423 0.84 2.83 0.44 0.61
4 A1 1013 996 88.79 8.32 0.18 0.30
5 A1 505 496 0.29 13.54 0.37 0.54
6 A1 257 253 9.20 0.58 0.43 0.60
7 A2 1020 1003 0.00 1.39 0.75 0.86
8 A2 179 176 0.00 0.27 0.75 0.86
9 B1 1022 1005 0.25 3.41 0.75 0.86
10 B1 124 122 3.12 0.13 0.75 0.86
11 B2 2918 2868 2.34 3.98 0.75 0.86
12 B2 1714 1685 466.70 1.64 0.75 0.86
13 B2 1390 1366 1.67 14.98 0.75 0.86
14 B2 949 933 515.57 2.27 0.75 0.86
15 B2 670 659 36.16 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8977.9 cm-1
Scaled (by 0.983) Zero Point Vibrational Energy (zpe) 8825.2 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 B97D3/3-21G
ABC
1.55822 0.08179 0.07771

See section I.F.4 to change rotational constant units
Geometric Data calculated at B97D3/3-21G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.423
C2 0.000 1.209 -0.328
C3 0.000 -1.209 -0.328
O4 0.000 2.298 0.212
O5 0.000 -2.298 0.212
H6 0.000 1.018 -1.417
H7 0.000 -1.018 -1.417

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.42371.42372.30762.30762.10242.1024
C21.42372.41901.21503.54871.10502.4792
C31.42372.41903.54871.21502.47921.1050
O42.30761.21503.54874.59582.07113.6941
O52.30763.54871.21504.59583.69412.0711
H62.10241.10502.47922.07113.69412.0361
H72.10242.47921.10503.69412.07112.0361

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 121.773 O1 C2 H6 111.865
O1 C3 O5 121.773 C2 O1 C3 116.317
O4 C2 H6 126.362
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B97D3/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.461      
2 C 0.436      
3 C 0.436      
4 O -0.393      
5 O -0.393      
6 H 0.188      
7 H 0.188      


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 -3.223 3.223
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.125 0.000 0.000
y 0.000 -37.508 0.000
z 0.000 0.000 -26.000
Traceless
 xyz
x 5.629 0.000 0.000
y 0.000 -11.445 0.000
z 0.000 0.000 5.817
Polar
3z2-r211.634
x2-y211.383
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.602 0.000 0.000
y 0.000 7.098 0.000
z 0.000 0.000 3.385


<r2> (average value of r2) Å2
<r2> 130.228
(<r2>)1/2 11.412