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

using model chemistry: B1B95/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at B1B95/6-31G*
 hartrees
Energy at 0K-302.972234
Energy at 298.15K 
HF Energy-302.972234
Nuclear repulsion energy159.924572
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 B1B95/6-31G*
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 3063 2907 98.72 106.26 0.28 0.44
2 A1 1973 1873 31.16 27.87 0.19 0.32
3 A1 1467 1393 0.01 2.52 0.33 0.49
4 A1 1176 1116 120.93 4.60 0.22 0.36
5 A1 548 520 0.96 8.35 0.36 0.53
6 A1 278 264 13.73 0.74 0.44 0.61
7 A2 1036 983 0.00 1.77 0.75 0.86
8 A2 181 172 0.00 0.40 0.75 0.86
9 B1 1043 990 1.33 3.77 0.75 0.86
10 B1 132 126 4.20 0.09 0.75 0.86
11 B2 3044 2889 0.15 2.10 0.75 0.86
12 B2 1894 1798 662.58 2.94 0.75 0.86
13 B2 1418 1346 11.64 9.26 0.75 0.86
14 B2 1137 1080 603.57 2.15 0.75 0.86
15 B2 714 678 38.79 0.00 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 9551.2 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 9067.0 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 B1B95/6-31G*
ABC
1.63350 0.08690 0.08251

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.383
C2 0.000 1.173 -0.320
C3 0.000 -1.173 -0.320
O4 0.000 2.228 0.224
O5 0.000 -2.228 0.224
H6 0.000 1.026 -1.411
H7 0.000 -1.026 -1.411

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36711.36712.23402.23402.06722.0672
C21.36712.34531.18773.44431.10152.4551
C31.36712.34533.44431.18772.45511.1015
O42.23401.18773.44434.45682.03003.6426
O52.23403.44431.18774.45683.64262.0300
H62.06721.10152.45512.03003.64262.0526
H72.06722.45511.10153.64262.03002.0526

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 121.806 O1 C2 H6 113.297
O1 C3 O5 121.806 C2 O1 C3 118.135
O4 C2 H6 124.897
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 O -0.381      
2 C 0.408      
3 C 0.408      
4 O -0.367      
5 O -0.367      
6 H 0.150      
7 H 0.150      


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 -3.214 3.214
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.901 0.000 0.000
y 0.000 -37.855 0.000
z 0.000 0.000 -25.563
Traceless
 xyz
x 5.808 0.000 0.000
y 0.000 -12.123 0.000
z 0.000 0.000 6.315
Polar
3z2-r212.630
x2-y211.955
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.168 0.000 0.000
y 0.000 6.779 0.000
z 0.000 0.000 3.745


<r2> (average value of r2) Å2
<r2> 123.846
(<r2>)1/2 11.129