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

using model chemistry: CCSD(T)=FULL/aug-cc-pVDZ

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/aug-cc-pVDZ
 hartrees
Energy at 0K-302.430446
Energy at 298.15K 
HF Energy-301.522183
Nuclear repulsion energy157.922310
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/aug-cc-pVDZ
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 3050 2962        
2 A1 1852 1799        
3 A1 1426 1385        
4 A1 1128 1095        
5 A1 528 513        
6 A1 279 271        
7 A2 995 966        
8 A2 171 166        
9 B1 1004 975        
10 B1 124 121        
11 B2 3029 2942        
12 B2 1774 1723        
13 B2 1372 1332        
14 B2 1052 1021        
15 B2 690 670        

Unscaled Zero Point Vibrational Energy (zpe) 9235.4 cm-1
Scaled (by 0.9712) Zero Point Vibrational Energy (zpe) 8969.4 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(T)=FULL/aug-cc-pVDZ
ABC
1.58042 0.08498 0.08065

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/aug-cc-pVDZ

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.000 0.406
C2 0.000 1.182 -0.325
C3 0.000 -1.182 -0.325
O4 0.000 2.255 0.218
O5 0.000 -2.255 0.218
H6 0.000 1.027 -1.423
H7 0.000 -1.027 -1.423

Atom - Atom Distances (Å)
  O1 C2 C3 O4 O5 H6 H7
O11.39011.39012.26302.26302.09802.0980
C21.39012.36481.20223.48011.10952.4673
C31.39012.36483.48011.20222.46731.1095
O42.26301.20223.48014.51032.05003.6695
O52.26303.48011.20224.51033.66952.0500
H62.09801.10952.46732.05003.66952.0537
H72.09802.46731.10953.66952.05002.0537

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 121.442 O1 C2 H6 113.665
O1 C3 O5 121.442 C2 O1 C3 116.553
O4 C2 H6 124.893
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability