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All results from a given calculation for CHONH2 (formamide)

using model chemistry: MP4/aug-cc-pVDZ

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 MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-169.513381
Energy at 298.15K-169.516792
HF Energy-168.960624
Nuclear repulsion energy70.362230
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 MP4/6-31G*
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' 3735 3649        
2 A' 3597 3514        
3 A' 2983 2914        
4 A' 1801 1760        
5 A' 1642 1604        
6 A' 1430 1397        
7 A' 1293 1263        
8 A' 1060 1035        
9 A' 559 546        
10 A" 1035 1011        
11 A" 648 633        
12 A" 200i 196i        

Unscaled Zero Point Vibrational Energy (zpe) 9790.8 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 9564.7 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 MP4/aug-cc-pVDZ
ABC
2.38863 0.36998 0.32036

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.426 0.000
O2 1.216 0.223 0.000
N3 -0.955 -0.561 0.000
H4 -0.444 1.449 0.000
H5 -0.664 -1.532 0.000
H6 -1.941 -0.333 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.23301.37261.11492.06792.0837
O21.23302.30802.06332.57283.2056
N31.37262.30802.07301.01431.0120
H41.11492.06332.07302.98912.3268
H52.06792.57281.01432.98911.7516
H62.08373.20561.01202.32681.7516

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.307 C1 N3 H6 121.064
O2 C1 N3 124.608 O2 C1 H4 122.911
N3 C1 H4 112.481 H5 N3 H6 119.629
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at MP4/aug-cc-pVDZ
 hartrees
Energy at 0K-169.513381
Energy at 298.15K-169.516797
HF Energy-168.960635
Nuclear repulsion energy70.366159
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 MP4/6-31G*
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 3717 3631        
2 A 3583 3501        
3 A 2986 2917        
4 A 1800 1759        
5 A 1647 1609        
6 A 1431 1398        
7 A 1292 1263        
8 A 1073 1048        
9 A 1030 1006        
10 A 636 621        
11 A 558 545        
12 A 282 276        

Unscaled Zero Point Vibrational Energy (zpe) 10017.5 cm-1
Scaled (by 0.9769) Zero Point Vibrational Energy (zpe) 9786.0 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 MP4/aug-cc-pVDZ
ABC
2.38784 0.37008 0.32042

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.159 0.395 0.000
O2 1.211 -0.249 0.000
N3 -1.095 -0.162 -0.002
H4 0.131 1.510 -0.000
H5 -1.190 -1.172 0.004
H6 -1.925 0.416 0.007

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.23321.37241.11492.06772.0845
O21.23322.30762.06362.57223.2058
N31.37242.30762.07301.01411.0118
H41.11492.06362.07302.98902.3288
H52.06772.57221.01412.98901.7498
H62.08453.20581.01182.32881.7498

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.327 C1 N3 H6 121.185
O2 C1 N3 124.571 O2 C1 H4 122.929
N3 C1 H4 112.500 H5 N3 H6 119.479
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability