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All results from a given calculation for CHONH2 (formamide)

using model chemistry: MP2/Def2TZVPP

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 MP2/Def2TZVPP
 hartrees
Energy at 0K-169.611482
Energy at 298.15K-169.614995
HF Energy-169.009331
Nuclear repulsion energy71.245211
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 MP2/Def2TZVPP
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' 3786 3603 59.98      
2 A' 3634 3458 54.85      
3 A' 3025 2878 87.10      
4 A' 1799 1712 380.91      
5 A' 1619 1540 56.43      
6 A' 1432 1362 4.54      
7 A' 1283 1220 107.66      
8 A' 1055 1004 5.12      
9 A' 565 538 9.96      
10 A" 1051 1000 3.74      
11 A" 642 611 12.88      
12 A" 108 103 216.61      

Unscaled Zero Point Vibrational Energy (zpe) 9999.0 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 9514.0 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 MP2/Def2TZVPP
ABC
2.46028 0.37871 0.32819

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.418 0.000
O2 1.198 0.237 0.000
N3 -0.939 -0.564 0.000
H4 -0.453 1.422 0.000
H5 -0.645 -1.525 0.000
H6 -1.917 -0.350 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21181.35861.10162.04712.0654
O21.21182.28202.03272.54953.1701
N31.35862.28202.04491.00461.0017
H41.10162.03272.04492.95332.2989
H52.04712.54951.00462.95331.7317
H62.06543.17011.00172.29891.7317

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.293 C1 N3 H6 121.363
O2 C1 N3 125.097 O2 C1 H4 122.889
N3 C1 H4 112.014 H5 N3 H6 119.344
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at MP2/Def2TZVPP
 hartrees
Energy at 0K-169.611482
Energy at 298.15K-169.614994
HF Energy-169.009343
Nuclear repulsion energy71.251095
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 MP2/Def2TZVPP
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 3787 3603 59.99      
2 A 3634 3458 54.85      
3 A 3025 2878 87.10      
4 A 1799 1712 381.01      
5 A 1619 1540 56.43      
6 A 1432 1362 4.51      
7 A 1283 1221 107.56      
8 A 1055 1004 5.07      
9 A 1051 1000 3.74      
10 A 642 611 13.00      
11 A 565 538 9.99      
12 A 107 102 216.48      

Unscaled Zero Point Vibrational Energy (zpe) 9999.1 cm-1
Scaled (by 0.9515) Zero Point Vibrational Energy (zpe) 9514.1 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 MP2/Def2TZVPP
ABC
2.45986 0.37883 0.32827

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/Def2TZVPP

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.159 0.390 0.001
O2 1.195 -0.246 0.004
N3 -1.083 -0.159 -0.029
H4 0.135 1.489 0.001
H5 -1.168 -1.157 0.059
H6 -1.896 0.410 0.103

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21581.35781.09882.03832.0574
O21.21582.27922.03292.53233.1613
N31.35782.27922.04911.00481.0018
H41.09882.03292.04912.94912.3017
H52.03832.53231.00482.94911.7285
H62.05743.16131.00182.30171.7285

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 118.491 C1 N3 H6 120.624
O2 C1 N3 124.566 O2 C1 H4 122.798
N3 C1 H4 112.625 H5 N3 H6 118.947
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability