return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

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

using model chemistry: HSEh1PBE/daug-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 HSEh1PBE/daug-cc-pVDZ
 hartrees
Energy at 0K-302.823200
Energy at 298.15K 
HF Energy-302.823200
Nuclear repulsion energy159.671970
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/daug-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 3037 3037 72.59 126.86 0.25 0.39
2 A1 1926 1926 30.30 49.25 0.15 0.25
3 A1 1422 1422 0.03 3.43 0.43 0.60
4 A1 1160 1160 102.60 2.15 0.11 0.20
5 A1 543 543 0.52 8.88 0.20 0.34
6 A1 279 279 14.79 0.65 0.25 0.40
7 A2 1019 1019 0.00 0.39 0.75 0.86
8 A2 196 196 0.00 0.47 0.75 0.86
9 B1 1028 1028 0.03 1.61 0.75 0.86
10 B1 135 135 5.24 0.07 0.75 0.86
11 B2 3018 3018 2.90 0.29 0.75 0.86
12 B2 1845 1845 723.83 2.20 0.75 0.86
13 B2 1373 1373 7.05 3.85 0.75 0.86
14 B2 1096 1096 657.06 2.29 0.75 0.86
15 B2 710 710 43.58 0.10 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9392.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9392.7 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/daug-cc-pVDZ
ABC
1.61449 0.08682 0.08239

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.389
C2 0.000 1.173 -0.321
C3 0.000 -1.173 -0.321
O4 0.000 2.230 0.224
O5 0.000 -2.230 0.224
H6 0.000 1.025 -1.418
H7 0.000 -1.025 -1.418

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37101.37102.23572.23572.07702.0770
C21.37102.34591.18903.44591.10672.4561
C31.37102.34593.44591.18902.45611.1067
O42.23571.18903.44594.45932.03653.6450
O52.23573.44591.18904.45933.64502.0365
H62.07701.10672.45612.03653.64502.0495
H72.07702.45611.10673.64502.03652.0495

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 121.531 O1 C2 H6 113.488
O1 C3 O5 121.531 C2 O1 C3 117.632
O4 C2 H6 124.980
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.309      
2 C 1.157      
3 C 1.157      
4 O -0.633      
5 O -0.633      
6 H -0.370      
7 H -0.370      


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 -3.325 3.325
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.579 0.000 0.000
y 0.000 -39.324 0.000
z 0.000 0.000 -26.051
Traceless
 xyz
x 6.108 0.000 0.000
y 0.000 -13.009 0.000
z 0.000 0.000 6.901
Polar
3z2-r213.801
x2-y212.745
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.515 0.000 0.000
y 0.000 8.028 0.000
z 0.000 0.000 4.976


<r2> (average value of r2) Å2
<r2> 124.564
(<r2>)1/2 11.161