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

using model chemistry: TPSSh/aug-cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-303.200240
Energy at 298.15K 
HF Energy-303.200240
Nuclear repulsion energy159.267082
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-pVTZ
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 3005 2900 76.94 130.55 0.26 0.41
2 A1 1884 1818 27.46 50.59 0.15 0.26
3 A1 1430 1381 0.09 3.79 0.40 0.58
4 A1 1128 1088 99.27 2.41 0.10 0.18
5 A1 530 511 0.31 9.88 0.21 0.35
6 A1 269 260 13.78 0.67 0.21 0.35
7 A2 1011 975 0.00 0.36 0.75 0.86
8 A2 186 179 0.00 0.41 0.75 0.86
9 B1 1019 983 0.15 1.48 0.75 0.86
10 B1 132 127 5.25 0.07 0.75 0.86
11 B2 2986 2882 2.34 0.40 0.75 0.86
12 B2 1804 1741 687.78 2.46 0.75 0.86
13 B2 1377 1329 6.06 3.80 0.75 0.86
14 B2 1042 1005 661.52 2.62 0.75 0.86
15 B2 700 675 44.32 0.15 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9250.1 cm-1
Scaled (by 0.9652) Zero Point Vibrational Energy (zpe) 8928.2 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 TPSSh/aug-cc-pVTZ
ABC
1.61315 0.08624 0.08186

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.394
C2 0.000 1.179 -0.322
C3 0.000 -1.179 -0.322
O4 0.000 2.236 0.221
O5 0.000 -2.236 0.221
H6 0.000 1.025 -1.412
H7 0.000 -1.025 -1.412

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37951.37952.24322.24322.07622.0762
C21.37952.35791.18893.45841.10042.4582
C31.37952.35793.45841.18892.45821.1004
O42.24321.18893.45844.47302.03343.6471
O52.24323.45841.18894.47303.64712.0334
H62.07621.10042.45822.03343.64712.0493
H72.07622.45821.10043.64712.03342.0493

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 121.529 O1 C2 H6 113.217
O1 C3 O5 121.529 C2 O1 C3 117.444
O4 C2 H6 125.255
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/aug-cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.106      
2 C 0.258      
3 C 0.258      
4 O -0.540      
5 O -0.540      
6 H 0.335      
7 H 0.335      


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 -3.264 3.264
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 3.498 0.000 0.000
y 0.000 8.196 0.000
z 0.000 0.000 5.006


<r2> (average value of r2) Å2
<r2> 125.122
(<r2>)1/2 11.186