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All results from a given calculation for CHONH2 (formamide)

using model chemistry: B2PLYP=FULL/cc-pVDZ

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no Planar 1A'
1 2 yes Non-Planar 1A

Conformer 1 (Planar)

Jump to S1C2
Energy calculated at B2PLYP=FULL/cc-pVDZ
 hartrees
Energy at 0K-169.743973
Energy at 298.15K 
HF Energy-169.580897
Nuclear repulsion energy70.945206
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/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' 3749 3593 41.92      
2 A' 3596 3446 35.03      
3 A' 2963 2840 121.02      
4 A' 1828 1752 351.83      
5 A' 1597 1531 59.95      
6 A' 1419 1361 4.87      
7 A' 1281 1228 91.13      
8 A' 1054 1010 2.20      
9 A' 566 542 11.15      
10 A" 1050 1007 0.65      
11 A" 652 625 14.48      
12 A" 144i 138i 209.44      

Unscaled Zero Point Vibrational Energy (zpe) 9805.1 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 9398.2 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 B2PLYP=FULL/cc-pVDZ
ABC
2.43665 0.37594 0.32569

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVDZ

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.420 0.000
O2 1.202 0.237 0.000
N3 -0.941 -0.566 0.000
H4 -0.467 1.433 0.000
H5 -0.640 -1.533 0.000
H6 -1.928 -0.353 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21621.36291.11572.05532.0771
O21.21622.28872.05362.55493.1854
N31.36292.28872.05491.01281.0099
H41.11572.05362.05492.97172.3079
H52.05532.55491.01282.97171.7470
H62.07713.18541.00992.30791.7470

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.065 C1 N3 H6 121.471
O2 C1 N3 125.001 O2 C1 H4 123.377
N3 C1 H4 111.622 H5 N3 H6 119.464
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at B2PLYP=FULL/cc-pVDZ
 hartrees
Energy at 0K-169.744001
Energy at 298.15K-169.747679
HF Energy-169.580886
Nuclear repulsion energy70.925334
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/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 3736 3581 38.49      
2 A 3587 3438 31.75      
3 A 2965 2842 119.65      
4 A 1827 1751 342.36      
5 A 1600 1533 57.15      
6 A 1419 1361 4.31      
7 A 1281 1228 90.31      
8 A 1066 1022 2.99      
9 A 1043 1000 0.69      
10 A 645 618 22.62      
11 A 566 542 10.55      
12 A 208 199 217.83      

Unscaled Zero Point Vibrational Energy (zpe) 9971.6 cm-1
Scaled (by 0.9585) Zero Point Vibrational Energy (zpe) 9557.7 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 B2PLYP=FULL/cc-pVDZ
ABC
2.42540 0.37585 0.32588

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULL/cc-pVDZ

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.162 0.388 0.001
O2 1.200 -0.245 0.006
N3 -1.088 -0.160 -0.036
H4 0.124 1.503 0.001
H5 -1.173 -1.164 0.073
H6 -1.904 0.414 0.127

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.21611.36521.11562.04832.0701
O21.21612.29032.05272.54563.1759
N31.36522.29032.05791.01371.0108
H41.11562.05272.05792.96642.3055
H52.04832.54561.01372.96641.7402
H62.07013.17591.01082.30551.7402

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 118.105 C1 N3 H6 120.480
O2 C1 N3 124.960 O2 C1 H4 123.319
N3 C1 H4 111.705 H5 N3 H6 118.541
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability