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

using model chemistry: QCISD(T)=FULL/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2V 1A1
Energy calculated at QCISD(T)=FULL/Def2TZVPP
 hartrees
Energy at 0K-302.757316
Energy at 298.15K 
HF Energy-301.610701
Nuclear repulsion energy159.539950
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 QCISD(T)=FULL/Def2TZVPP
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 3043 3043        
2 A1 1890 1890        
3 A1 1457 1457        
4 A1 1152 1152        
5 A1 543 543        
6 A1 282 282        
7 A2 1017 1017        
8 A2 177 177        
9 B1 1027 1027        
10 B1 125 125        
11 B2 3022 3022        
12 B2 1810 1810        
13 B2 1396 1396        
14 B2 1083 1083        
15 B2 708 708        

Unscaled Zero Point Vibrational Energy (zpe) 9365.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 9365.8 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 QCISD(T)=FULL/Def2TZVPP
ABC
1.62250 0.08660 0.08221

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)=FULL/Def2TZVPP

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.402
C2 0.000 1.172 -0.320
C3 0.000 -1.172 -0.320
O4 0.000 2.234 0.215
O5 0.000 -2.234 0.215
H6 0.000 1.014 -1.405
H7 0.000 -1.014 -1.405

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.37621.37622.24182.24182.07182.0718
C21.37622.34351.18933.44741.09622.4402
C31.37622.34353.44741.18932.44021.0962
O42.24181.18933.44744.46792.02763.6295
O52.24183.44741.18934.46793.62952.0276
H62.07181.09622.44022.02763.62952.0282
H72.07182.44021.09623.62952.02762.0282

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 121.638 O1 C2 H6 113.369
O1 C3 O5 121.638 C2 O1 C3 116.730
O4 C2 H6 124.994
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability