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

using model chemistry: PBE1PBE/STO-3G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at PBE1PBE/STO-3G
 hartrees
Energy at 0K-298.692194
Energy at 298.15K 
HF Energy-298.692194
Nuclear repulsion energy154.318789
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 PBE1PBE/STO-3G
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 3227 2847 23.91 50.68 0.44 0.61
2 A1 1963 1732 1.53 10.69 0.13 0.23
3 A1 1485 1310 0.18 3.93 0.50 0.66
4 A1 1140 1006 51.34 4.72 0.28 0.44
5 A1 546 482 1.47 9.25 0.36 0.53
6 A1 286 252 8.49 0.48 0.43 0.60
7 A2 955 843 0.00 0.60 0.75 0.86
8 A2 222 196 0.00 0.26 0.75 0.86
9 B1 950 838 0.95 1.03 0.75 0.86
10 B1 121 106 2.43 0.09 0.75 0.86
11 B2 3233 2852 13.06 2.11 0.75 0.86
12 B2 1872 1651 278.88 0.66 0.75 0.86
13 B2 1452 1281 24.43 12.02 0.75 0.86
14 B2 1164 1027 335.06 2.22 0.75 0.86
15 B2 656 579 9.50 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9635.9 cm-1
Scaled (by 0.8821) Zero Point Vibrational Energy (zpe) 8499.9 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 PBE1PBE/STO-3G
ABC
1.48329 0.08179 0.07752

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBE1PBE/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.460
C2 0.000 1.191 -0.333
C3 0.000 -1.191 -0.333
O4 0.000 2.306 0.199
O5 0.000 -2.306 0.199
H6 0.000 0.975 -1.436
H7 0.000 -0.975 -1.436

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.43061.43062.32122.32122.13242.1324
C21.43062.38121.23623.53731.12422.4304
C31.43062.38123.53731.23622.43041.1242
O42.32121.23623.53734.61282.10893.6662
O52.32123.53731.23624.61283.66622.1089
H62.13241.12422.43042.10893.66621.9498
H72.13242.43041.12423.66622.10891.9498

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 120.836 O1 C2 H6 112.609
O1 C3 O5 120.836 C2 O1 C3 112.657
O4 C2 H6 126.555
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBE1PBE/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.151      
2 C 0.160      
3 C 0.160      
4 O -0.163      
5 O -0.163      
6 H 0.078      
7 H 0.078      


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 -2.282 2.282
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -23.745 0.000 0.000
y 0.000 -32.857 0.000
z 0.000 0.000 -23.908
Traceless
 xyz
x 4.638 0.000 0.000
y 0.000 -9.031 0.000
z 0.000 0.000 4.393
Polar
3z2-r28.786
x2-y29.112
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.757 0.000 0.000
y 0.000 5.416 0.000
z 0.000 0.000 1.971


<r2> (average value of r2) Å2
<r2> 128.571
(<r2>)1/2 11.339