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

using model chemistry: B2PLYP/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 B2PLYP/cc-pVTZ
 hartrees
Energy at 0K-302.990503
Energy at 298.15K 
HF Energy-302.659905
Nuclear repulsion energy159.469670
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 B2PLYP/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 3045 2922 81.31 124.36 0.25 0.40
2 A1 1889 1813 25.35 28.86 0.19 0.32
3 A1 1455 1396 0.12 4.47 0.30 0.46
4 A1 1140 1094 102.86 3.34 0.16 0.27
5 A1 537 515 0.39 9.99 0.27 0.43
6 A1 279 268 13.16 0.69 0.43 0.60
7 A2 1026 984 0.00 1.01 0.75 0.86
8 A2 180 173 0.00 0.35 0.75 0.86
9 B1 1035 993 0.05 1.75 0.75 0.86
10 B1 130 125 4.72 0.11 0.75 0.86
11 B2 3023 2900 1.18 1.21 0.75 0.86
12 B2 1811 1737 630.07 3.09 0.75 0.86
13 B2 1397 1341 6.37 5.73 0.75 0.86
14 B2 1069 1026 663.14 2.24 0.75 0.86
15 B2 711 682 44.20 0.02 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9363.6 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 8983.4 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 B2PLYP/cc-pVTZ
ABC
1.62619 0.08635 0.08199

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.391
C2 0.000 1.178 -0.321
C3 0.000 -1.178 -0.321
O4 0.000 2.235 0.221
O5 0.000 -2.235 0.221
H6 0.000 1.026 -1.407
H7 0.000 -1.026 -1.407

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37631.37632.24162.24162.07052.0705
C21.37632.35541.18813.45561.09702.4568
C31.37632.35543.45561.18812.45681.0970
O42.24161.18813.45564.47032.02813.6448
O52.24163.45561.18814.47033.64482.0281
H62.07051.09702.45682.02813.64482.0516
H72.07052.45681.09703.64482.02812.0516

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 121.716 O1 C2 H6 113.202
O1 C3 O5 121.716 C2 O1 C3 117.679
O4 C2 H6 125.082
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.111      
2 C 0.209      
3 C 0.209      
4 O -0.213      
5 O -0.213      
6 H 0.060      
7 H 0.060      


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 -3.271 3.271
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.442 0.000 0.000
y 0.000 -38.711 0.000
z 0.000 0.000 -26.061
Traceless
 xyz
x 5.944 0.000 0.000
y 0.000 -12.460 0.000
z 0.000 0.000 6.516
Polar
3z2-r213.032
x2-y212.269
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.819 0.000 0.000
y 0.000 7.421 0.000
z 0.000 0.000 4.339


<r2> (average value of r2) Å2
<r2> 124.874
(<r2>)1/2 11.175