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All results from a given calculation for H2NO (nitroxide)

using model chemistry: mPW1PW91/6-311G**

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 mPW1PW91/6-311G**
 hartrees
Energy at 0K-131.093019
Energy at 298.15K 
HF Energy-131.093019
Nuclear repulsion energy35.317651
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 mPW1PW91/6-311G**
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 3472 3321 0.32      
2 A1 1697 1623 14.59      
3 A1 1442 1379 6.28      
4 B1 201i 192i 202.97      
5 B2 3602 3446 2.75      
6 B2 1290 1234 1.76      

Unscaled Zero Point Vibrational Energy (zpe) 5650.8 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 5406.1 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 mPW1PW91/6-311G**
ABC
10.91903 1.15462 1.04421

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.535
O2 0.000 0.000 0.730
H3 0.000 0.875 -1.046
H4 0.000 -0.875 -1.046

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.26501.01321.0132
O21.26501.97951.9795
H31.01321.97951.7504
H41.01321.97951.7504

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 120.259 O2 N1 H4 120.259
H3 N1 H4 119.481
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.151      
2 O -0.293      
3 H 0.222      
4 H 0.222      


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 -3.061 3.061
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.235 0.000 0.000
y 0.000 -9.797 0.000
z 0.000 0.000 -10.808
Traceless
 xyz
x -1.933 0.000 0.000
y 0.000 1.724 0.000
z 0.000 0.000 0.209
Polar
3z2-r20.417
x2-y2-2.438
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.014 0.000 0.000
y 0.000 1.502 0.000
z 0.000 0.000 2.734


<r2> (average value of r2) Å2
<r2> 16.822
(<r2>)1/2 4.101

Conformer 2 (CS)

Jump to S1C1
Energy calculated at mPW1PW91/6-311G**
 hartrees
Energy at 0K-131.093051
Energy at 298.15K-131.095289
HF Energy-131.093051
Nuclear repulsion energy35.303577
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 mPW1PW91/6-311G**
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' 3459 3309 0.11      
2 A' 1696 1623 14.48      
3 A' 1436 1374 6.23      
4 A' 279 267 196.71      
5 A" 3587 3432 1.80      
6 A" 1297 1241 1.60      

Unscaled Zero Point Vibrational Energy (zpe) 5877.4 cm-1
Scaled (by 0.9567) Zero Point Vibrational Energy (zpe) 5622.9 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 mPW1PW91/6-311G**
ABC
10.82691 1.15368 1.04560

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/6-311G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.014 0.537 0.000
O2 -0.014 -0.729 0.000
H3 0.108 1.039 0.872
H4 0.108 1.039 -0.872

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.26591.01411.0141
O21.26591.97571.9757
H31.01411.97571.7446
H41.01411.97571.7446

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 119.705 O2 N1 H4 119.705
H3 N1 H4 118.662
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.149      
2 O -0.293      
3 H 0.221      
4 H 0.221      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.389 3.024 0.000 3.049
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -12.193 0.369 0.000
y 0.369 -10.870 0.000
z 0.000 0.000 -9.830
Traceless
 xyz
x -1.843 0.369 0.000
y 0.369 0.142 0.000
z 0.000 0.000 1.701
Polar
3z2-r23.402
x2-y2-1.324
xy0.369
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.027 0.049 0.000
y 0.049 2.731 0.000
z 0.000 0.000 1.510


<r2> (average value of r2) Å2
<r2> 16.827
(<r2>)1/2 4.102