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

using model chemistry: TPSSh/aug-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 TPSSh/aug-cc-pVDZ
 hartrees
Energy at 0K-303.128919
Energy at 298.15K 
HF Energy-303.128919
Nuclear repulsion energy158.566041
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 TPSSh/aug-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 3017 2919 80.65 132.75 0.26 0.41
2 A1 1873 1812 26.49 48.75 0.16 0.28
3 A1 1409 1363 0.19 3.90 0.41 0.58
4 A1 1122 1086 96.69 2.62 0.11 0.19
5 A1 524 507 0.28 10.21 0.22 0.36
6 A1 267 259 14.22 0.73 0.23 0.38
7 A2 1005 972 0.00 0.37 0.75 0.86
8 A2 191 185 0.00 0.47 0.75 0.86
9 B1 1010 977 0.21 1.65 0.75 0.86
10 B1 132 128 5.16 0.09 0.75 0.86
11 B2 3000 2902 2.12 0.51 0.75 0.86
12 B2 1793 1734 684.56 2.70 0.75 0.86
13 B2 1363 1319 6.26 3.88 0.75 0.86
14 B2 1035 1001 651.45 2.90 0.75 0.86
15 B2 690 667 43.32 0.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9215.7 cm-1
Scaled (by 0.9673) Zero Point Vibrational Energy (zpe) 8914.3 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 TPSSh/aug-cc-pVDZ
ABC
1.58926 0.08564 0.08126

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.397
C2 0.000 1.182 -0.325
C3 0.000 -1.182 -0.325
O4 0.000 2.245 0.223
O5 0.000 -2.245 0.223
H6 0.000 1.027 -1.421
H7 0.000 -1.027 -1.421

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.38491.38492.25152.25152.08722.0872
C21.38492.36361.19603.47021.10632.4651
C31.38492.36363.47021.19602.46511.1063
O42.25151.19603.47024.48962.04583.6610
O52.25153.47021.19604.48963.66102.0458
H62.08721.10632.46512.04583.66102.0531
H72.08722.46511.10633.66102.04582.0531

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 121.301 O1 C2 H6 113.351
O1 C3 O5 121.301 C2 O1 C3 117.160
O4 C2 H6 125.348
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.511      
2 C 0.878      
3 C 0.878      
4 O -0.433      
5 O -0.433      
6 H -0.190      
7 H -0.190      


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 -3.319 3.319
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.426 0.000 0.000
y 0.000 8.318 0.000
z 0.000 0.000 5.008


<r2> (average value of r2) Å2
<r2> 125.984
(<r2>)1/2 11.224