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

using model chemistry: HSEh1PBE/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 HSEh1PBE/cc-pVTZ
 hartrees
Energy at 0K-302.890783
Energy at 298.15K 
HF Energy-302.890783
Nuclear repulsion energy160.320226
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 HSEh1PBE/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 3020 2903 85.04 121.41 0.25 0.39
2 A1 1942 1866 31.73 30.60 0.20 0.34
3 A1 1446 1389 0.00 3.45 0.32 0.48
4 A1 1166 1121 110.59 2.64 0.23 0.38
5 A1 549 527 0.59 8.38 0.27 0.43
6 A1 281 270 13.98 0.70 0.38 0.55
7 A2 1031 991 0.00 1.06 0.75 0.86
8 A2 188 181 0.00 0.34 0.75 0.86
9 B1 1041 1000 0.11 1.80 0.75 0.86
10 B1 133 128 5.09 0.11 0.75 0.86
11 B2 3000 2883 1.74 1.34 0.75 0.86
12 B2 1861 1789 679.82 3.17 0.75 0.86
13 B2 1389 1335 6.30 5.07 0.75 0.86
14 B2 1106 1063 638.33 2.09 0.75 0.86
15 B2 719 691 42.91 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9435.8 cm-1
Scaled (by 0.9611) Zero Point Vibrational Energy (zpe) 9068.8 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 HSEh1PBE/cc-pVTZ
ABC
1.63796 0.08736 0.08294

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.386
C2 0.000 1.171 -0.318
C3 0.000 -1.171 -0.318
O4 0.000 2.222 0.222
O5 0.000 -2.222 0.222
H6 0.000 1.021 -1.410
H7 0.000 -1.021 -1.410

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36631.36632.22842.22842.06582.0658
C21.36632.34111.18233.43551.10162.4480
C31.36632.34113.43551.18232.44801.1016
O42.22841.18233.43554.44452.02603.6302
O52.22843.43551.18234.44453.63022.0260
H62.06581.10162.44802.02603.63022.0415
H72.06582.44801.10163.63022.02602.0415

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 121.773 O1 C2 H6 113.235
O1 C3 O5 121.773 C2 O1 C3 117.899
O4 C2 H6 124.992
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.091      
2 C 0.222      
3 C 0.222      
4 O -0.217      
5 O -0.217      
6 H 0.040      
7 H 0.040      


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 -3.218 3.218
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.251 0.000 0.000
y 0.000 -38.584 0.000
z 0.000 0.000 -25.794
Traceless
 xyz
x 5.937 0.000 0.000
y 0.000 -12.561 0.000
z 0.000 0.000 6.624
Polar
3z2-r213.248
x2-y212.332
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.820 0.000 0.000
y 0.000 7.279 0.000
z 0.000 0.000 4.321


<r2> (average value of r2) Å2
<r2> 123.580
(<r2>)1/2 11.117