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All results from a given calculation for CHONH2 (formamide)

using model chemistry: CCD/aug-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 CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-169.624237
Energy at 298.15K-169.627608
HF Energy-169.005636
Nuclear repulsion energy71.478674
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 CCD/aug-cc-pVTZ
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' 3789 3626 55.17      
2 A' 3648 3491 53.13      
3 A' 3026 2896 68.36      
4 A' 1845 1766 461.67      
5 A' 1648 1577 64.60      
6 A' 1446 1384 4.54      
7 A' 1292 1236 134.57      
8 A' 1074 1028 7.11      
9 A' 576 551 11.99      
10 A" 1076 1029 2.49      
11 A" 632 605 13.17      
12 A" 23 22 219.09      

Unscaled Zero Point Vibrational Energy (zpe) 10036.5 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9605.0 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 CCD/aug-cc-pVTZ
ABC
2.46909 0.38147 0.33042

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.419 0.000
O2 1.193 0.234 0.000
N3 -0.935 -0.563 0.000
H4 -0.443 1.425 0.000
H5 -0.641 -1.523 0.000
H6 -1.912 -0.347 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.20681.35621.09962.04502.0593
O21.20682.27212.02342.53993.1580
N31.35622.27212.04871.00321.0004
H41.09962.02342.04872.95482.3015
H52.04502.53991.00322.95481.7309
H62.05933.15801.00042.30151.7309

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.417 C1 N3 H6 121.073
O2 C1 N3 124.772 O2 C1 H4 122.572
N3 C1 H4 112.656 H5 N3 H6 119.511
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at CCD/aug-cc-pVTZ
 hartrees
Energy at 0K-169.624237
Energy at 298.15K-169.627606
HF Energy-169.005636
Nuclear repulsion energy71.480331
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 CCD/aug-cc-pVTZ
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 3789 3626 55.18      
2 A 3648 3491 53.16      
3 A 3026 2896 68.31      
4 A 1845 1765 461.77      
5 A 1648 1577 64.57      
6 A 1446 1384 4.53      
7 A 1292 1237 134.50      
8 A 1075 1029 2.54      
9 A 1074 1028 7.01      
10 A 632 605 13.23      
11 A 576 551 11.98      
12 A 22 21 219.08      

Unscaled Zero Point Vibrational Energy (zpe) 10035.9 cm-1
Scaled (by 0.957) Zero Point Vibrational Energy (zpe) 9604.4 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 CCD/aug-cc-pVTZ
ABC
2.46852 0.38153 0.33046

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCD/aug-cc-pVTZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.162 0.386 0.000
O2 1.190 -0.246 0.000
N3 -1.080 -0.157 -0.001
H4 0.144 1.486 0.000
H5 -1.181 -1.155 0.001
H6 -1.897 0.421 0.002

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.20681.35611.09962.04482.0593
O21.20682.27192.02342.53933.1580
N31.35612.27192.04891.00321.0004
H41.09962.02342.04892.95482.3019
H52.04482.53931.00322.95481.7309
H62.05933.15801.00042.30191.7309

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.400 C1 N3 H6 121.081
O2 C1 N3 124.758 O2 C1 H4 122.565
N3 C1 H4 112.677 H5 N3 H6 119.518
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability