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

using model chemistry: CCSD/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/6-311+G(3df,2p)
 hartrees
Energy at 0K-302.604494
Energy at 298.15K 
HF Energy-301.597593
Nuclear repulsion energy160.302120
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/6-311+G(3df,2p)
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 3078 2903 59.66      
2 A1 1938 1827 26.75      
3 A1 1478 1393 0.03      
4 A1 1182 1115 103.04      
5 A1 555 523 0.69      
6 A1 288 271 14.69      
7 A2 1042 983 0.00      
8 A2 175 165 0.00      
9 B1 1051 991 0.09      
10 B1 129 122 4.83      
11 B2 3055 2881 1.42      
12 B2 1859 1753 708.22      
13 B2 1419 1338 14.85      
14 B2 1135 1070 686.26      
15 B2 723 682 45.79      

Unscaled Zero Point Vibrational Energy (zpe) 9551.9 cm-1
Scaled (by 0.9431) Zero Point Vibrational Energy (zpe) 9008.4 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 CCSD/6-311+G(3df,2p)
ABC
1.63469 0.08739 0.08296

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.387
C2 0.000 1.169 -0.319
C3 0.000 -1.169 -0.319
O4 0.000 2.222 0.222
O5 0.000 -2.222 0.222
H6 0.000 1.027 -1.408
H7 0.000 -1.027 -1.408

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.36641.36642.22822.22822.06802.0680
C21.36642.33891.18363.43441.09742.4514
C31.36642.33893.43441.18362.45141.0974
O42.22821.18363.43444.44412.02063.6349
O52.22823.43441.18364.44413.63492.0206
H62.06801.09742.45142.02063.63492.0544
H72.06802.45141.09743.63492.02062.0544

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 121.635 O1 C2 H6 113.699
O1 C3 O5 121.635 C2 O1 C3 117.705
O4 C2 H6 124.666
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability