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All results from a given calculation for CHONH2 (formamide)

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

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no Planar 1A'
1 2 yes Non-Planar 1A

Conformer 1 (Planar)

Jump to S1C2
Energy calculated at CCSD(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-169.757300
Energy at 298.15K 
HF Energy-169.015331
Nuclear repulsion energy71.467746
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/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)=FULL/cc-pVQZ
See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)=FULL/cc-pVQZ

Point Group is Cs

Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at CCSD(T)=FULL/cc-pVQZ
 hartrees
Energy at 0K-169.786841
Energy at 298.15K 
HF Energy-169.015329
Nuclear repulsion energy71.466622
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/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at CCSD(T)=FULL/cc-pVQZ
ABC
2.46928 0.38140 0.33037

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.160 0.387 0.000
O2 -1.192 -0.245 0.000
N3 1.079 -0.158 -0.001
H4 -0.135 1.486 0.001
H5 1.176 -1.156 0.004
H6 1.897 0.416 0.004

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.20961.35421.09892.04082.0577
O21.20962.27262.02752.53653.1589
N31.35422.27262.04391.00220.9995
H41.09892.02752.04392.94882.2967
H52.04082.53651.00222.94881.7297
H62.05773.15890.99952.29671.7297

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.255 C1 N3 H6 121.177
O2 C1 N3 124.764 O2 C1 H4 122.798
N3 C1 H4 112.438 H5 N3 H6 119.564
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability