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All results from a given calculation for H2NO (nitroxide)

using model chemistry: PBEPBE/Def2TZVPP

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 no C2V 2B1
1 2 yes CS 2A'

Conformer 1 (C2V)

Jump to S1C2
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-131.012335
Energy at 298.15K 
HF Energy-131.012335
Nuclear repulsion energy34.968475
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 PBEPBE/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 A1 3309 3269 3.64      
2 A1 1613 1594 5.89      
3 A1 1358 1342 15.67      
4 B1 240i 237i 163.50      
5 B2 3418 3377 0.00      
6 B2 1222 1207 2.97      

Unscaled Zero Point Vibrational Energy (zpe) 5340.0 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 5275.4 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 PBEPBE/Def2TZVPP
ABC
10.73071 1.13165 1.02369

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

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.541
O2 0.000 0.000 0.737
H3 0.000 0.883 -1.056
H4 0.000 -0.883 -1.056

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.27771.02261.0226
O21.27771.99901.9990
H31.02261.99901.7662
H41.02261.99901.7662

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.276 O2 N1 H4 120.276
H3 N1 H4 119.448
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.050      
2 O -0.312      
3 H 0.181      
4 H 0.181      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 -3.036 3.036
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.570 0.000 0.000
y 0.000 -10.168 0.000
z 0.000 0.000 -11.169
Traceless
 xyz
x -1.901 0.000 0.000
y 0.000 1.701 0.000
z 0.000 0.000 0.200
Polar
3z2-r20.400
x2-y2-2.402
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.448 0.000 0.000
y 0.000 1.947 0.000
z 0.000 0.000 3.147


<r2> (average value of r2) Å2
<r2> 17.249
(<r2>)1/2 4.153

Conformer 2 (CS)

Jump to S1C1
Energy calculated at PBEPBE/Def2TZVPP
 hartrees
Energy at 0K-131.012404
Energy at 298.15K-131.014696
HF Energy-131.012404
Nuclear repulsion energy34.951248
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 PBEPBE/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' 3288 3249 5.54      
2 A' 1613 1593 6.03      
3 A' 1351 1334 15.96      
4 A' 334 330 159.08      
5 A" 3397 3356 0.23      
6 A" 1232 1217 2.70      

Unscaled Zero Point Vibrational Energy (zpe) 5607.4 cm-1
Scaled (by 0.9879) Zero Point Vibrational Energy (zpe) 5539.5 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 PBEPBE/Def2TZVPP
ABC
10.59062 1.13069 1.02599

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.025 0.543 0.000
O2 -0.025 -0.736 0.000
H3 0.190 1.045 0.873
H4 0.190 1.045 -0.873

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.27911.02981.0298
O21.27911.99511.9951
H31.02981.99511.7460
H41.02981.99511.7460

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 119.168 O2 N1 H4 119.168
H3 N1 H4 115.925
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/Def2TZVPP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.048      
2 O -0.312      
3 H 0.180      
4 H 0.180      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.433 2.981 0.000 3.012
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.506 0.423 0.000
y 0.423 -11.259 0.000
z 0.000 0.000 -10.215
Traceless
 xyz
x -1.769 0.423 0.000
y 0.423 0.102 0.000
z 0.000 0.000 1.667
Polar
3z2-r23.334
x2-y2-1.247
xy0.423
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.465 0.078 0.000
y 0.078 3.146 0.000
z 0.000 0.000 1.962


<r2> (average value of r2) Å2
<r2> 17.252
(<r2>)1/2 4.154