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All results from a given calculation for CHONH2 (formamide)

using model chemistry: CCSD=FULL/cc-pVQZ

19 10 17 12 22

States and conformations

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

Conformer 1 (Planar)

Jump to S1C2
Energy calculated at CCSD=FULL/cc-pVQZ
 hartrees
Energy at 0K-169.757400
Energy at 298.15K 
HF Energy-169.015991
Nuclear repulsion energy71.728913
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=FULL/cc-pVQZ
Rotational Constants (cm-1) from geometry optimized at CCSD=FULL/cc-pVQZ
ABC
2.48770 0.38416 0.33277

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.417 0.000
O2 1.189 0.233 0.000
N3 -0.932 -0.560 0.000
H4 -0.442 1.421 0.000
H5 -0.639 -1.516 0.000
H6 -1.905 -0.344 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.20301.35061.09662.03602.0520
O21.20302.26422.01772.52943.1476
N31.35062.26422.04080.99990.9971
H41.09662.01772.04082.94352.2928
H52.03602.52940.99992.94351.7258
H62.05203.14760.99712.29281.7258

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.296 C1 N3 H6 121.126
O2 C1 N3 124.819 O2 C1 H4 122.589
N3 C1 H4 112.592 H5 N3 H6 119.577
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at CCSD=FULL/cc-pVQZ
 hartrees
Energy at 0K-169.757400
Energy at 298.15K-169.761001
HF Energy-169.015990
Nuclear repulsion energy71.730060
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=FULL/cc-pVQZ
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
(Å4/u)
Dep P Dep U
1 A 3802 3802 53.42      
2 A 3661 3661 51.63      
3 A 3032 3032 75.22      
4 A 1849 1849 423.14      
5 A 1649 1649 64.51      
6 A 1453 1453 5.21      
7 A 1301 1301 120.72      
8 A 1079 1079 5.81      
9 A 1079 1079 1.68      
10 A 641 641 15.02      
11 A 580 580 12.12      
12 A 146 146 216.23      

Unscaled Zero Point Vibrational Energy (zpe) 10136.4 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 10136.4 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=FULL/cc-pVQZ
ABC
2.48698 0.38422 0.33280

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.161 0.385 -0.000
O2 -1.186 -0.245 0.000
N3 1.076 -0.157 -0.000
H4 -0.141 1.481 0.000
H5 1.175 -1.152 0.000
H6 1.891 0.418 0.001

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.20301.35051.09662.03602.0521
O21.20302.26402.01772.52913.1476
N31.35052.26402.04090.99990.9971
H41.09662.01772.04092.94362.2934
H52.03602.52910.99992.94361.7257
H62.05213.14760.99712.29341.7257

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.295 C1 N3 H6 121.144
O2 C1 N3 124.802 O2 C1 H4 122.587
N3 C1 H4 112.610 H5 N3 H6 119.561
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability