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All results from a given calculation for CHONH2 (formamide)

using model chemistry: MP2/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 MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-169.474290
Energy at 298.15K-169.477905
HF Energy-168.961660
Nuclear repulsion energy70.603259
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/aug-cc-pVDZ
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' 3763 3609 53.81      
2 A' 3604 3456 50.10      
3 A' 3033 2909 80.32      
4 A' 1765 1692 421.98      
5 A' 1618 1551 40.55      
6 A' 1406 1348 5.05      
7 A' 1273 1221 110.22      
8 A' 1048 1005 4.82      
9 A' 557 534 10.42      
10 A" 1032 990 5.90      
11 A" 635 609 12.62      
12 A" 174 167 210.08      

Unscaled Zero Point Vibrational Energy (zpe) 9953.3 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 9545.2 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/aug-cc-pVDZ
ABC
2.40402 0.37263 0.32262

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.425 0.000
O2 1.211 0.224 0.000
N3 -0.951 -0.560 0.000
H4 -0.442 1.443 0.000
H5 -0.660 -1.529 0.000
H6 -1.935 -0.333 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.22801.36831.11062.06252.0781
O21.22802.29962.05482.56443.1953
N31.36832.29962.06641.01241.0100
H41.11062.05482.06642.98072.3205
H52.06252.56441.01242.98071.7481
H62.07813.19531.01002.32051.7481

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.316 C1 N3 H6 121.064
O2 C1 N3 124.593 O2 C1 H4 122.883
N3 C1 H4 112.524 H5 N3 H6 119.620
Electronic energy levels

Electronic state

Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at MP2/aug-cc-pVDZ
 hartrees
Energy at 0K-169.474290
Energy at 298.15K-169.477903
HF Energy-168.961651
Nuclear repulsion energy70.606590
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/aug-cc-pVDZ
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 3764 3609 53.92      
2 A 3605 3457 50.16      
3 A 3034 2910 80.05      
4 A 1763 1691 422.49      
5 A 1617 1551 40.05      
6 A 1405 1348 5.04      
7 A 1274 1222 109.80      
8 A 1048 1005 4.67      
9 A 1032 990 5.92      
10 A 635 609 12.81      
11 A 557 534 10.46      
12 A 173 165 209.86      

Unscaled Zero Point Vibrational Energy (zpe) 9953.1 cm-1
Scaled (by 0.959) Zero Point Vibrational Energy (zpe) 9545.1 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/aug-cc-pVDZ
ABC
2.40293 0.37276 0.32270

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2/aug-cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.159 0.394 0.000
O2 1.207 -0.248 0.000
N3 -1.091 -0.161 -0.000
H4 0.133 1.504 0.000
H5 -1.185 -1.169 0.000
H6 -1.919 0.417 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.22831.36791.11052.06162.0780
O21.22832.29922.05452.56293.1953
N31.36792.29922.06691.01251.0099
H41.11052.05452.06692.98072.3220
H52.06162.56291.01252.98071.7481
H62.07803.19531.00992.32201.7481

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.260 C1 N3 H6 121.105
O2 C1 N3 124.565 O2 C1 H4 122.830
N3 C1 H4 112.604 H5 N3 H6 119.635
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability