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All results from a given calculation for H2COO (Dioxymethyl radical)

using model chemistry: QCISD/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at QCISD/cc-pVDZ
 hartrees
Energy at 0K-189.106462
Energy at 298.15K-189.109004
HF Energy-188.562975
Nuclear repulsion energy69.340606
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/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 A' 3329 3194 0.03      
2 A' 3170 3041 0.69      
3 A' 1501 1440 16.46      
4 A' 1369 1314 9.00      
5 A' 1216 1166 25.74      
6 A' 988 948 6.01      
7 A' 530 509 4.05      
8 A" 851 816 30.34      
9 A" 612 587 2.20      

Unscaled Zero Point Vibrational Energy (zpe) 6782.8 cm-1
Scaled (by 0.9594) Zero Point Vibrational Energy (zpe) 6507.4 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 QCISD/cc-pVDZ
ABC
2.48141 0.41414 0.35491

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
O1 0.000 0.484 0.000
C2 1.070 -0.222 0.000
H3 0.980 -1.315 0.000
H4 2.006 0.346 0.000
O5 -1.176 -0.196 0.000

Atom - Atom Distances (Å)
  O1 C2 H3 H4 O5
O11.28232.04832.01041.3586
C21.28231.09641.09392.2466
H32.04831.09641.95152.4288
H42.01041.09391.95153.2274
O51.35862.24662.42883.2274

picture of Dioxymethyl radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O1 C2 H3 118.675 O1 C2 H4 115.341
C2 O1 O5 116.548 H3 C2 H4 125.983
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability