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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-302.838826
Energy at 298.15K 
HF Energy-302.838826
Nuclear repulsion energy158.100258
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 2919 2888 119.01 129.01 0.30 0.46
2 A1 1866 1846 26.27 28.03 0.21 0.34
3 A1 1400 1385 0.09 2.50 0.34 0.51
4 A1 1087 1076 106.76 3.81 0.23 0.37
5 A1 514 509 0.13 11.72 0.34 0.51
6 A1 267 265 11.99 0.74 0.30 0.46
7 A2 973 963 0.00 1.16 0.75 0.86
8 A2 177 175 0.00 0.24 0.75 0.86
9 B1 979 969 0.02 3.41 0.75 0.86
10 B1 127 126 3.98 0.13 0.75 0.86
11 B2 2897 2867 0.36 2.03 0.75 0.86
12 B2 1790 1772 612.26 2.89 0.75 0.86
13 B2 1346 1332 6.22 8.16 0.75 0.86
14 B2 994 984 587.49 2.79 0.75 0.86
15 B2 686 678 42.94 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9010.8 cm-1
Scaled (by 0.9896) Zero Point Vibrational Energy (zpe) 8917.1 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 PBEPBE/6-311G*
ABC
1.59482 0.08488 0.08059

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 0.398
C2 0.000 1.190 -0.323
C3 0.000 -1.190 -0.323
O4 0.000 2.254 0.221
O5 0.000 -2.254 0.221
H6 0.000 1.033 -1.424
H7 0.000 -1.033 -1.424

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39081.39082.26072.26072.09402.0940
C21.39082.37961.19493.48621.11232.4807
C31.39082.37963.48621.19492.48071.1123
O42.26071.19493.48624.50752.04853.6755
O52.26073.48621.19494.50753.67552.0485
H62.09401.11232.48072.04853.67552.0661
H72.09402.48071.11233.67552.04852.0661

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 121.741 O1 C2 H6 113.085
O1 C3 O5 121.741 C2 O1 C3 117.629
O4 C2 H6 125.174
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 -0.179      
2 C 0.144      
3 C 0.144      
4 O -0.224      
5 O -0.224      
6 H 0.170      
7 H 0.170      


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 -3.050 3.050
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.429 0.000 0.000
y 0.000 -37.784 0.000
z 0.000 0.000 -26.010
Traceless
 xyz
x 5.467 0.000 0.000
y 0.000 -11.564 0.000
z 0.000 0.000 6.097
Polar
3z2-r212.194
x2-y211.354
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.382 0.000 0.000
y 0.000 7.459 0.000
z 0.000 0.000 4.070


<r2> (average value of r2) Å2
<r2> 126.528
(<r2>)1/2 11.248