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

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVTZ
 hartrees
Energy at 0K-303.109504
Energy at 298.15K 
HF Energy-303.109504
Nuclear repulsion energy160.378635
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 mPW1PW91/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 3029 2906 83.70 119.84 0.25 0.40
2 A1 1943 1864 31.83 30.73 0.20 0.33
3 A1 1450 1391 0.00 3.48 0.31 0.48
4 A1 1168 1120 110.98 2.66 0.23 0.37
5 A1 549 526 0.61 8.25 0.27 0.43
6 A1 280 268 14.07 0.69 0.38 0.55
7 A2 1034 992 0.00 1.08 0.75 0.86
8 A2 187 180 0.00 0.35 0.75 0.86
9 B1 1043 1001 0.12 1.71 0.75 0.86
10 B1 133 127 5.10 0.10 0.75 0.86
11 B2 3009 2886 1.64 1.36 0.75 0.86
12 B2 1862 1787 684.37 3.18 0.75 0.86
13 B2 1394 1337 6.70 5.07 0.75 0.86
14 B2 1108 1063 642.34 2.05 0.75 0.86
15 B2 720 691 43.08 0.01 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9454.3 cm-1
Scaled (by 0.9592) Zero Point Vibrational Energy (zpe) 9068.6 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 mPW1PW91/cc-pVTZ
ABC
1.63946 0.08741 0.08299

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVTZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.386
C2 0.000 1.170 -0.318
C3 0.000 -1.170 -0.318
O4 0.000 2.221 0.222
O5 0.000 -2.221 0.222
H6 0.000 1.022 -1.408
H7 0.000 -1.022 -1.408

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36601.36602.22752.22752.06492.0649
C21.36602.34081.18183.43461.10012.4483
C31.36602.34083.43461.18182.44831.1001
O42.22751.18183.43464.44292.02413.6300
O52.22753.43461.18184.44293.63002.0241
H62.06491.10012.44832.02413.63002.0437
H72.06492.44831.10013.63002.02412.0437

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 121.760 O1 C2 H6 113.276
O1 C3 O5 121.760 C2 O1 C3 117.928
O4 C2 H6 124.964
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/cc-pVTZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.096      
2 C 0.233      
3 C 0.233      
4 O -0.220      
5 O -0.220      
6 H 0.035      
7 H 0.035      


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 -3.235 3.235
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.168 0.000 0.000
y 0.000 -38.541 0.000
z 0.000 0.000 -25.702
Traceless
 xyz
x 5.953 0.000 0.000
y 0.000 -12.606 0.000
z 0.000 0.000 6.653
Polar
3z2-r213.305
x2-y212.373
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.812 0.000 0.000
y 0.000 7.255 0.000
z 0.000 0.000 4.295


<r2> (average value of r2) Å2
<r2> 123.471
(<r2>)1/2 11.112