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

using model chemistry: PBEPBE/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 PBEPBE/6-311G**
 hartrees
Energy at 0K-302.842259
Energy at 298.15K 
HF Energy-302.842259
Nuclear repulsion energy158.130346
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 PBEPBE/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 2909 2883 108.56 132.47 0.28 0.44
2 A1 1863 1846 25.74 27.63 0.21 0.34
3 A1 1384 1371 0.15 3.13 0.33 0.50
4 A1 1087 1077 106.64 3.90 0.23 0.37
5 A1 514 509 0.13 11.50 0.34 0.51
6 A1 265 263 12.09 0.77 0.31 0.47
7 A2 981 972 0.00 1.09 0.75 0.86
8 A2 184 182 0.00 0.24 0.75 0.86
9 B1 987 978 0.01 3.18 0.75 0.86
10 B1 128 127 4.15 0.14 0.75 0.86
11 B2 2889 2863 0.69 1.89 0.75 0.86
12 B2 1787 1771 603.41 3.13 0.75 0.86
13 B2 1335 1322 4.53 7.54 0.75 0.86
14 B2 991 982 584.08 2.78 0.75 0.86
15 B2 684 678 42.95 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8993.6 cm-1
Scaled (by 0.9909) Zero Point Vibrational Energy (zpe) 8911.7 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 PBEPBE/6-311G**
ABC
1.59119 0.08499 0.08068

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.401
C2 0.000 1.188 -0.323
C3 0.000 -1.188 -0.323
O4 0.000 2.253 0.220
O5 0.000 -2.253 0.220
H6 0.000 1.023 -1.423
H7 0.000 -1.023 -1.423

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39131.39132.26022.26022.09162.0916
C21.39132.37611.19503.48341.11262.4695
C31.39132.37613.48341.19502.46951.1126
O42.26021.19503.48344.50572.05223.6645
O52.26023.48341.19504.50573.66452.0522
H62.09161.11262.46952.05223.66452.0456
H72.09162.46951.11263.66452.05222.0456

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 121.641 O1 C2 H6 112.822
O1 C3 O5 121.641 C2 O1 C3 117.275
O4 C2 H6 125.537
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.187      
2 C 0.235      
3 C 0.235      
4 O -0.225      
5 O -0.225      
6 H 0.083      
7 H 0.083      


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 -3.046 3.046
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.363 0.000 0.000
y 0.000 -37.774 0.000
z 0.000 0.000 -26.020
Traceless
 xyz
x 5.534 0.000 0.000
y 0.000 -11.582 0.000
z 0.000 0.000 6.049
Polar
3z2-r212.097
x2-y211.411
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.412 0.000 0.000
y 0.000 7.502 0.000
z 0.000 0.000 4.093


<r2> (average value of r2) Å2
<r2> 126.368
(<r2>)1/2 11.241