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: B3LYPultrafine/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 B3LYPultrafine/cc-pVTZ
 hartrees
Energy at 0K-303.195238
Energy at 298.15K 
HF Energy-303.195238
Nuclear repulsion energy159.571210
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 B3LYPultrafine/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 3007 2907 86.54 125.02 0.25 0.40
2 A1 1908 1845 32.09 30.14 0.20 0.33
3 A1 1445 1397 0.00 3.40 0.32 0.49
4 A1 1135 1097 106.34 2.71 0.22 0.36
5 A1 536 518 0.40 9.02 0.28 0.43
6 A1 276 267 13.30 0.70 0.37 0.54
7 A2 1023 989 0.00 1.06 0.75 0.86
8 A2 180 174 0.00 0.30 0.75 0.86
9 B1 1031 997 0.10 1.89 0.75 0.86
10 B1 131 127 4.62 0.10 0.75 0.86
11 B2 2985 2885 1.26 1.74 0.75 0.86
12 B2 1830 1769 658.19 3.16 0.75 0.86
13 B2 1390 1343 6.17 5.51 0.75 0.86
14 B2 1062 1026 647.53 2.27 0.75 0.86
15 B2 712 688 47.84 0.04 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9324.0 cm-1
Scaled (by 0.9667) Zero Point Vibrational Energy (zpe) 9013.5 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 B3LYPultrafine/cc-pVTZ
ABC
1.62590 0.08638 0.08203

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3LYPultrafine/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.383
C2 0.000 1.182 -0.321
C3 0.000 -1.182 -0.321
O4 0.000 2.233 0.226
O5 0.000 -2.233 0.226
H6 0.000 1.037 -1.411
H7 0.000 -1.037 -1.411

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37581.37582.23832.23832.07272.0727
C21.37582.36321.18503.45791.09972.4719
C31.37582.36323.45791.18502.47191.0997
O42.23831.18503.45794.46552.02743.6566
O52.23833.45791.18504.46553.65662.0274
H62.07271.09972.47192.02743.65662.0738
H72.07272.47191.09973.65662.02742.0738

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 121.695 O1 C2 H6 113.245
O1 C3 O5 121.695 C2 O1 C3 118.384
O4 C2 H6 125.059
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3LYPultrafine/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.116      
2 C 0.232      
3 C 0.232      
4 O -0.219      
5 O -0.219      
6 H 0.045      
7 H 0.045      


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 -3.276 3.276
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.372 0.000 0.000
y 0.000 -38.800 0.000
z 0.000 0.000 -25.990
Traceless
 xyz
x 6.023 0.000 0.000
y 0.000 -12.619 0.000
z 0.000 0.000 6.596
Polar
3z2-r213.192
x2-y212.428
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.834 0.000 0.000
y 0.000 7.403 0.000
z 0.000 0.000 4.368


<r2> (average value of r2) Å2
<r2> 124.860
(<r2>)1/2 11.174