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

using model chemistry: PBEPBEultrafine/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 PBEPBEultrafine/daug-cc-pVDZ
 hartrees
Energy at 0K-302.808438
Energy at 298.15K 
HF Energy-302.808438
Nuclear repulsion energy157.650976
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 PBEPBEultrafine/daug-cc-pVDZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A1 2931 2931 80.92 140.57 0.27 0.42
2 A1 1835 1835 23.48 53.52 0.15 0.27
3 A1 1359 1359 0.58 3.60 0.46 0.63
4 A1 1086 1086 87.95 2.22 0.08 0.15
5 A1 511 511 0.15 12.07 0.21 0.35
6 A1 264 264 12.75 0.76 0.17 0.29
7 A2 962 962 0.00 0.16 0.75 0.86
8 A2 193 193 0.00 0.40 0.75 0.86
9 B1 969 969 0.61 2.20 0.75 0.86
10 B1 131 131 4.82 0.07 0.75 0.86
11 B2 2914 2914 2.66 0.29 0.75 0.86
12 B2 1758 1758 641.04 2.02 0.75 0.86
13 B2 1313 1313 4.43 4.06 0.75 0.86
14 B2 986 986 625.75 3.31 0.75 0.86
15 B2 676 676 40.26 0.25 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 8942.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8942.9 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 PBEPBEultrafine/daug-cc-pVDZ
ABC
1.56998 0.08467 0.08034

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.401
C2 0.000 1.189 -0.326
C3 0.000 -1.189 -0.326
O4 0.000 2.258 0.223
O5 0.000 -2.258 0.223
H6 0.000 1.030 -1.430
H7 0.000 -1.030 -1.430

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39341.39342.26472.26472.10082.1008
C21.39342.37701.20223.48981.11542.4776
C31.39342.37703.48981.20222.47761.1154
O42.26471.20223.48984.51542.05993.6797
O52.26473.48981.20224.51543.67972.0599
H62.10081.11542.47762.05993.67972.0590
H72.10082.47761.11543.67972.05992.0590

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 121.329 O1 C2 H6 113.266
O1 C3 O5 121.329 C2 O1 C3 117.075
O4 C2 H6 125.404
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBEultrafine/daug-cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.207      
2 C 1.089      
3 C 1.089      
4 O -0.575      
5 O -0.575      
6 H -0.410      
7 H -0.410      


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 -3.154 3.154
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.871 0.000 0.000
y 0.000 -39.068 0.000
z 0.000 0.000 -26.429
Traceless
 xyz
x 5.878 0.000 0.000
y 0.000 -12.419 0.000
z 0.000 0.000 6.541
Polar
3z2-r213.082
x2-y212.197
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 3.695 0.000 0.000
y 0.000 8.805 0.000
z 0.000 0.000 5.348


<r2> (average value of r2) Å2
<r2> 127.310
(<r2>)1/2 11.283