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All results from a given calculation for CHONH2 (formamide)

using model chemistry: CCSD=FULL/cc-pVTZ

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-pVTZ
 hartrees
Energy at 0K-169.659645
Energy at 298.15K-169.663181
HF Energy-169.002408
Nuclear repulsion energy71.639561
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-pVTZ
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' 3803 3605 49.67      
2 A' 3668 3478 48.80      
3 A' 3032 2875 83.43      
4 A' 1858 1761 401.92      
5 A' 1659 1573 61.70      
6 A' 1464 1388 5.63      
7 A' 1302 1235 118.43      
8 A' 1075 1019 4.99      
9 A' 577 547 11.86      
10 A" 1094 1037 1.18      
11 A" 644 611 15.50      
12 A" 105 99 216.86      

Unscaled Zero Point Vibrational Energy (zpe) 10139.9 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 9613.7 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-pVTZ
ABC
2.49379 0.38249 0.33163

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.416 0.000
O2 1.191 0.236 0.000
N3 -0.933 -0.562 0.000
H4 -0.446 1.416 0.000
H5 -0.640 -1.519 0.000
H6 -1.908 -0.346 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.20471.35231.09502.03862.0543
O21.20472.26932.01862.53623.1527
N31.35232.26932.03771.00070.9979
H41.09502.01862.03772.94182.2895
H52.03862.53621.00072.94181.7268
H62.05433.15270.99792.28951.7268

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.328 C1 N3 H6 121.132
O2 C1 N3 125.012 O2 C1 H4 122.678
N3 C1 H4 112.311 H5 N3 H6 119.540
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at CCSD=FULL/cc-pVTZ
 hartrees
Energy at 0K-169.659645
Energy at 298.15K-169.663178
HF Energy-169.002409
Nuclear repulsion energy71.642742
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-pVTZ
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 3803 3606 49.70      
2 A 3668 3478 48.80      
3 A 3032 2875 83.34      
4 A 1858 1761 401.94      
5 A 1659 1573 61.66      
6 A 1464 1388 5.62      
7 A 1302 1235 118.41      
8 A 1093 1037 1.17      
9 A 1075 1019 4.92      
10 A 645 611 15.58      
11 A 577 547 11.88      
12 A 103 97 216.85      

Unscaled Zero Point Vibrational Energy (zpe) 10139.3 cm-1
Scaled (by 0.9481) Zero Point Vibrational Energy (zpe) 9613.1 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-pVTZ
ABC
2.49321 0.38258 0.33168

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

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.161 0.384 0.000
O2 -1.189 -0.244 0.000
N3 1.078 -0.157 -0.001
H4 -0.137 1.479 0.000
H5 1.178 -1.153 0.002
H6 1.893 0.419 0.003

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.20471.35221.09502.03832.0542
O21.20472.26902.01852.53553.1525
N31.35222.26902.03781.00070.9978
H41.09502.01852.03782.94172.2899
H52.03832.53551.00072.94171.7268
H62.05423.15250.99782.28991.7268

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.307 C1 N3 H6 121.144
O2 C1 N3 124.996 O2 C1 H4 122.671
N3 C1 H4 112.333 H5 N3 H6 119.547
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability