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All results from a given calculation for CHONH2 (formamide)

using model chemistry: B2PLYP=FULL/6-31+G**

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 B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-169.752004
Energy at 298.15K-169.755650
HF Energy-169.585037
Nuclear repulsion energy70.944751
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 B2PLYP=FULL/6-31+G**
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' 3776 3591 52.94      
2 A' 3628 3450 45.64      
3 A' 3031 2883 93.60      
4 A' 1790 1702 448.89      
5 A' 1640 1560 55.26      
6 A' 1429 1359 7.12      
7 A' 1282 1219 114.54      
8 A' 1061 1009 4.68      
9 A' 566 539 10.38      
10 A" 1041 990 3.51      
11 A" 637 606 14.75      
12 A" 193 184 259.56      

Unscaled Zero Point Vibrational Energy (zpe) 10037.9 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 9546.0 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 B2PLYP=FULL/6-31+G**
ABC
2.43388 0.37596 0.32565

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.422 0.000
O2 1.206 0.222 0.000
N3 -0.947 -0.555 0.000
H4 -0.434 1.435 0.000
H5 -0.659 -1.522 0.000
H6 -1.928 -0.334 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.22271.36111.10182.05262.0711
O21.22272.28912.04012.55323.1832
N31.36112.28912.05531.00831.0059
H41.10182.04012.05532.96512.3153
H52.05262.55321.00832.96511.7382
H62.07113.18321.00592.31531.7382

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.326 C1 N3 H6 121.364
O2 C1 N3 124.652 O2 C1 H4 122.640
N3 C1 H4 112.708 H5 N3 H6 119.310
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at B2PLYP=FULL/6-31+G**
 hartrees
Energy at 0K-169.752004
Energy at 298.15K-169.755641
HF Energy-169.585034
Nuclear repulsion energy70.947982
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 B2PLYP=FULL/6-31+G**
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 3777 3592 53.02      
2 A 3628 3450 45.70      
3 A 3032 2883 93.43      
4 A 1789 1701 449.18      
5 A 1640 1559 54.92      
6 A 1429 1359 7.12      
7 A 1283 1220 114.29      
8 A 1061 1009 4.56      
9 A 1042 991 3.52      
10 A 637 606 15.49      
11 A 567 539 10.42      
12 A 187 178 258.55      

Unscaled Zero Point Vibrational Energy (zpe) 10035.2 cm-1
Scaled (by 0.951) Zero Point Vibrational Energy (zpe) 9543.5 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 B2PLYP=FULL/6-31+G**
ABC
2.43297 0.37608 0.32573

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/6-31+G**

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.158 0.392 -0.000
O2 1.201 -0.247 0.000
N3 -1.086 -0.160 -0.000
H4 0.136 1.493 0.000
H5 -1.180 -1.163 0.000
H6 -1.913 0.413 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.22291.36071.10182.05182.0711
O21.22292.28872.03992.55183.1832
N31.36072.28872.05571.00831.0058
H41.10182.03992.05572.96512.3166
H52.05182.55181.00832.96511.7383
H62.07113.18321.00582.31661.7383

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.272 C1 N3 H6 121.403
O2 C1 N3 124.630 O2 C1 H4 122.599
N3 C1 H4 112.771 H5 N3 H6 119.324
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability