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

using model chemistry: CCSD(T)=FULL/6-311+G(3df,2p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at CCSD(T)=FULL/6-311+G(3df,2p)
 hartrees
Energy at 0K-302.767439
Energy at 298.15K 
HF Energy-301.596402
Nuclear repulsion energy159.873009
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 CCSD(T)=FULL/6-311+G(3df,2p)
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 3055 3055        
2 A1 1898 1898        
3 A1 1457 1457        
4 A1 1160 1160        
5 A1 545 545        
6 A1 283 283        
7 A2 1020 1020        
8 A2 175 175        
9 B1 1029 1029        
10 B1 129 129        
11 B2 3033 3033        
12 B2 1820 1820        
13 B2 1400 1400        
14 B2 1103 1103        
15 B2 712 712        

Unscaled Zero Point Vibrational Energy (zpe) 9409.1 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9409.1 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 CCSD(T)=FULL/6-311+G(3df,2p)
ABC
1.62812 0.08695 0.08254

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/6-311+G(3df,2p)

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.393
C2 0.000 1.171 -0.320
C3 0.000 -1.171 -0.320
O4 0.000 2.229 0.219
O5 0.000 -2.229 0.219
H6 0.000 1.021 -1.408
H7 0.000 -1.021 -1.408

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37051.37052.23552.23552.07052.0705
C21.37052.34101.18763.44171.09832.4471
C31.37052.34103.44171.18762.44711.0983
O42.23551.18763.44174.45752.02613.6346
O52.23553.44171.18764.45753.63462.0261
H62.07051.09832.44712.02613.63462.0428
H72.07052.44711.09833.63462.02612.0428

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 121.664 O1 C2 H6 113.542
O1 C3 O5 121.664 C2 O1 C3 117.308
O4 C2 H6 124.794
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability