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

using model chemistry: TPSSh/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/cc-pVTZ
 hartrees
Energy at 0K-303.195223
Energy at 298.15K 
HF Energy-303.195223
Nuclear repulsion energy159.296054
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/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 3002 2907 89.20 126.74 0.26 0.41
2 A1 1893 1833 27.66 31.86 0.20 0.33
3 A1 1435 1390 0.06 3.79 0.31 0.47
4 A1 1131 1095 104.96 2.98 0.21 0.35
5 A1 531 514 0.31 9.67 0.28 0.43
6 A1 271 262 13.30 0.69 0.33 0.49
7 A2 1013 981 0.00 0.95 0.75 0.86
8 A2 188 182 0.00 0.31 0.75 0.86
9 B1 1022 989 0.00 1.86 0.75 0.86
10 B1 131 127 5.00 0.11 0.75 0.86
11 B2 2983 2888 1.33 1.50 0.75 0.86
12 B2 1813 1755 647.58 3.21 0.75 0.86
13 B2 1381 1337 5.59 5.36 0.75 0.86
14 B2 1047 1014 631.23 2.50 0.75 0.86
15 B2 701 679 42.21 0.03 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9270.1 cm-1
Scaled (by 0.9683) Zero Point Vibrational Energy (zpe) 8976.3 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/cc-pVTZ
ABC
1.61525 0.08626 0.08189

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.395
C2 0.000 1.178 -0.322
C3 0.000 -1.178 -0.322
O4 0.000 2.236 0.220
O5 0.000 -2.236 0.220
H6 0.000 1.021 -1.411
H7 0.000 -1.021 -1.411

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37941.37942.24332.24332.07482.0748
C21.37942.35691.18853.45761.10082.4544
C31.37942.35693.45761.18852.45441.1008
O42.24331.18853.45764.47292.03423.6428
O52.24333.45761.18854.47293.64282.0342
H62.07481.10082.45442.03423.64282.0417
H72.07482.45441.10083.64282.03422.0417

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 121.581 O1 C2 H6 113.082
O1 C3 O5 121.581 C2 O1 C3 117.375
O4 C2 H6 125.337
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.104      
2 C 0.246      
3 C 0.246      
4 O -0.223      
5 O -0.223      
6 H 0.029      
7 H 0.029      


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 -3.177 3.177
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 2.838 0.000 0.000
y 0.000 7.553 0.000
z 0.000 0.000 4.393


<r2> (average value of r2) Å2
<r2> 124.845
(<r2>)1/2 11.173