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

using model chemistry: PBEPBEultrafine/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBEPBEultrafine/cc-pVDZ
 hartrees
Energy at 0K-302.779818
Energy at 298.15K 
HF Energy-302.779818
Nuclear repulsion energy157.827145
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 PBEPBEultrafine/cc-pVDZ
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 2903 2886 104.63 130.32 0.27 0.43
2 A1 1869 1858 25.65 24.22 0.21 0.34
3 A1 1361 1353 0.05 3.73 0.34 0.51
4 A1 1098 1092 102.77 3.91 0.22 0.37
5 A1 517 514 0.20 11.15 0.34 0.51
6 A1 266 264 11.07 0.78 0.32 0.49
7 A2 976 970 0.00 1.11 0.75 0.86
8 A2 194 193 0.00 0.12 0.75 0.86
9 B1 979 973 0.03 3.89 0.75 0.86
10 B1 131 130 4.02 0.13 0.75 0.86
11 B2 2884 2867 0.44 1.97 0.75 0.86
12 B2 1790 1780 586.57 3.16 0.75 0.86
13 B2 1317 1309 5.63 8.40 0.75 0.86
14 B2 1009 1004 546.88 3.26 0.75 0.86
15 B2 682 678 34.35 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8987.6 cm-1
Scaled (by 0.9942) Zero Point Vibrational Energy (zpe) 8935.5 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 PBEPBEultrafine/cc-pVDZ
ABC
1.57419 0.08492 0.08057

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBEultrafine/cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.407
C2 0.000 1.184 -0.323
C3 0.000 -1.184 -0.323
O4 0.000 2.256 0.218
O5 0.000 -2.256 0.218
H6 0.000 1.009 -1.432
H7 0.000 -1.009 -1.432

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39161.39162.26372.26372.09792.0979
C21.39162.36891.20043.48271.12252.4579
C31.39162.36893.48271.20042.45791.1225
O42.26371.20043.48274.51162.06823.6583
O52.26373.48271.20044.51163.65832.0682
H62.09791.12252.45792.06823.65832.0182
H72.09792.45791.12253.65832.06822.0182

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 121.518 O1 C2 H6 112.677
O1 C3 O5 121.518 C2 O1 C3 116.671
O4 C2 H6 125.804
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.143      
2 C 0.191      
3 C 0.191      
4 O -0.140      
5 O -0.140      
6 H 0.021      
7 H 0.021      


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 -2.805 2.805
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.135 0.000 0.000
y 0.000 -36.892 0.000
z 0.000 0.000 -25.869
Traceless
 xyz
x 5.245 0.000 0.000
y 0.000 -10.890 0.000
z 0.000 0.000 5.645
Polar
3z2-r211.290
x2-y210.757
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.261 0.000 0.000
y 0.000 7.309 0.000
z 0.000 0.000 4.050


<r2> (average value of r2) Å2
<r2> 126.244
(<r2>)1/2 11.236