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All results from a given calculation for HCOO (formate neutral radical)

using model chemistry: CCSD/6-31G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 2A'
Energy calculated at CCSD/6-31G*
 hartrees
Energy at 0K-188.581696
Energy at 298.15K-188.582731
HF Energy-188.127910
Nuclear repulsion energy62.130285
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/6-31G*
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' 3022 2854 29.25      
2 A' 1791 1692 185.11      
3 A' 1396 1318 8.80      
4 A' 1085 1024 83.42      
5 A' 352 333 42.00      
6 A" 1021 964 0.31      

Unscaled Zero Point Vibrational Energy (zpe) 4333.7 cm-1
Scaled (by 0.9443) Zero Point Vibrational Energy (zpe) 4092.4 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/6-31G*
ABC
3.15455 0.41528 0.36697

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/6-31G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.367 0.000
H2 -0.304 1.432 0.000
O3 1.131 -0.054 0.000
O4 -1.093 -0.401 0.000

Atom - Atom Distances (Å)
  C1 H2 O3 O4
C11.10751.20731.3361
H21.10752.06621.9958
O31.20732.06622.2514
O41.33611.99582.2514

picture of formate neutral radical state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
H2 C1 O3 126.359 H2 C1 O4 109.162
O3 C1 O4 124.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability