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All results from a given calculation for CHONH2 (formamide)

using model chemistry: HSEh1PBE/6-31G

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 HSEh1PBE/6-31G
 hartrees
Energy at 0K-169.659925
Energy at 298.15K-169.663991
HF Energy-169.659925
Nuclear repulsion energy70.634732
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 HSEh1PBE/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' 3782 3618 36.66      
2 A' 3635 3477 34.49      
3 A' 3050 2917 96.94      
4 A' 1778 1701 348.74      
5 A' 1680 1608 51.26      
6 A' 1442 1380 14.92      
7 A' 1319 1262 96.96      
8 A' 1091 1043 2.19      
9 A' 572 547 12.26      
10 A" 1062 1016 0.00      
11 A" 696 666 239.41      
12 A" 555 531 190.19      

Unscaled Zero Point Vibrational Energy (zpe) 10330.8 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 9882.4 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 HSEh1PBE/6-31G
ABC
2.42500 0.37221 0.32268

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.422 0.000
O2 1.219 0.204 0.000
N3 -0.959 -0.541 0.000
H4 -0.415 1.441 0.000
H5 -0.685 -1.511 0.000
H6 -1.938 -0.311 0.000

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.23791.35891.10012.05042.0719
O21.23792.30132.04882.56183.1981
N31.35892.30132.05521.00771.0054
H41.10012.04882.05522.96402.3218
H52.05042.56181.00772.96401.7343
H62.07193.19811.00542.32181.7343

picture of formamide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.342 C1 N3 H6 121.688
O2 C1 N3 124.737 O2 C1 H4 122.288
N3 C1 H4 112.975 H5 N3 H6 118.969
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.350      
2 O -0.452      
3 N -0.744      
4 H 0.140      
5 H 0.358      
6 H 0.348      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -4.173 -0.647 0.000 4.223
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -18.379 -0.010 0.000
y -0.010 -14.545 0.000
z 0.000 0.000 -18.672
Traceless
 xyz
x -1.771 -0.010 0.000
y -0.010 3.980 0.000
z 0.000 0.000 -2.209
Polar
3z2-r2-4.419
x2-y2-3.834
xy-0.010
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.191 0.254 0.000
y 0.254 3.029 0.000
z 0.000 0.000 1.194


<r2> (average value of r2) Å2
<r2> 41.358
(<r2>)1/2 6.431

Conformer 2 (Non-Planar)

Jump to S1C1
Energy calculated at HSEh1PBE/6-31G
 hartrees
Energy at 0K-169.659923
Energy at 298.15K-169.663987
HF Energy-169.659923
Nuclear repulsion energy70.632640
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 HSEh1PBE/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 3782 3618 36.69      
2 A 3636 3478 34.52      
3 A 3049 2917 96.59      
4 A 1777 1700 349.32      
5 A 1680 1607 50.20      
6 A 1442 1379 14.87      
7 A 1320 1263 97.11      
8 A 1090 1042 2.14      
9 A 1063 1017 0.00      
10 A 697 667 240.86      
11 A 571 546 12.28      
12 A 552 528 188.65      

Unscaled Zero Point Vibrational Energy (zpe) 10328.6 cm-1
Scaled (by 0.9566) Zero Point Vibrational Energy (zpe) 9880.4 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 HSEh1PBE/6-31G
ABC
2.42362 0.37227 0.32270

See section I.F.4 to change rotational constant units
Geometric Data calculated at HSEh1PBE/6-31G

Point Group is C1

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 -0.151 0.394 0.000
O2 -1.211 -0.246 0.000
N3 1.089 -0.161 -0.000
H4 -0.130 1.494 -0.001
H5 1.179 -1.165 -0.000
H6 1.922 0.402 0.001

Atom - Atom Distances (Å)
  C1 O2 N3 H4 H5 H6
C11.23831.35871.10022.04992.0725
O21.23832.30112.04862.56073.1986
N31.35872.30112.05621.00781.0052
H41.10022.04862.05622.96452.3247
H52.04992.56071.00782.96451.7337
H62.07253.19861.00522.32471.7337

picture of formamide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 N3 H5 119.300 C1 N3 H6 121.788
O2 C1 N3 124.705 O2 C1 H4 122.226
N3 C1 H4 113.069 H5 N3 H6 118.912
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HSEh1PBE/6-31G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.350      
2 O -0.453      
3 N -0.744      
4 H 0.141      
5 H 0.358      
6 H 0.349      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  4.129 0.891 0.003 4.225
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -17.890 -1.280 0.006
y -1.280 -15.031 0.001
z 0.006 0.001 -18.672
Traceless
 xyz
x -1.038 -1.280 0.006
y -1.280 3.250 0.001
z 0.006 0.001 -2.211
Polar
3z2-r2-4.423
x2-y2-2.859
xy-1.280
xz0.006
yz0.001


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 4.211 0.199 0.000
y 0.199 3.008 0.000
z 0.000 0.000 1.194


<r2> (average value of r2) Å2
<r2> 41.356
(<r2>)1/2 6.431