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All results from a given calculation for H2NO (nitroxide)

using model chemistry: BLYP/STO-3G

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 BLYP/STO-3G
 hartrees
Energy at 0K-129.256379
Energy at 298.15K 
HF Energy-129.256379
Nuclear repulsion energy32.887921
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 BLYP/STO-3G
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 3278 3033 1.43      
2 A1 1715 1587 4.14      
3 A1 1300 1203 0.58      
4 B1 580i 536i 221.68      
5 B2 3449 3191 32.55      
6 B2 1129 1045 1.75      

Unscaled Zero Point Vibrational Energy (zpe) 5145.9 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 4761.0 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 BLYP/STO-3G
ABC
10.35733 0.98344 0.89816

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is C2v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.000 0.000 -0.575
O2 0.000 0.000 0.791
H3 0.000 0.899 -1.152
H4 0.000 -0.899 -1.152

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.36561.06781.0678
O21.36562.14032.1403
H31.06782.14031.7972
H41.06782.14031.7972

picture of nitroxide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 122.698 O2 N1 H4 122.698
H3 N1 H4 114.605
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.251      
2 O -0.106      
3 H 0.179      
4 H 0.179      


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 -2.052 2.052
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.878 0.000 0.000
y 0.000 -9.137 0.000
z 0.000 0.000 -9.264
Traceless
 xyz
x -1.678 0.000 0.000
y 0.000 0.934 0.000
z 0.000 0.000 0.743
Polar
3z2-r21.486
x2-y2-1.741
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.245 0.000 0.000
y 0.000 0.957 0.000
z 0.000 0.000 1.702


<r2> (average value of r2) Å2
<r2> 17.680
(<r2>)1/2 4.205

Conformer 2 (CS)

Jump to S1C1
Energy calculated at BLYP/STO-3G
 hartrees
Energy at 0K-129.260080
Energy at 298.15K-129.262581
HF Energy-129.260080
Nuclear repulsion energy32.542044
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 BLYP/STO-3G
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' 3126 2892 18.71      
2 A' 1735 1605 3.84      
3 A' 1239 1146 0.45      
4 A' 706 653 141.72      
5 A" 3305 3058 58.80      
6 A" 1230 1138 0.08      

Unscaled Zero Point Vibrational Energy (zpe) 5670.2 cm-1
Scaled (by 0.9252) Zero Point Vibrational Energy (zpe) 5246.1 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 BLYP/STO-3G
ABC
9.01092 0.96549 0.90310

See section I.F.4 to change rotational constant units
Geometric Data calculated at BLYP/STO-3G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 -0.054 0.600 0.000
O2 -0.054 -0.788 0.000
H3 0.404 1.050 0.874
H4 0.404 1.050 -0.874

Atom - Atom Distances (Å)
  N1 O2 H3 H4
N11.38821.08411.0841
O21.38822.08622.0862
H31.08412.08621.7473
H41.08412.08621.7473

picture of nitroxide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
O2 N1 H3 114.531 O2 N1 H4 114.531
H3 N1 H4 107.389
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at BLYP/STO-3G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.235      
2 O -0.099      
3 H 0.167      
4 H 0.167      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  1.258 1.549 0.000 1.995
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -10.462 1.180 0.000
y 1.180 -10.113 0.000
z 0.000 0.000 -9.448
Traceless
 xyz
x -0.682 1.180 0.000
y 1.180 -0.158 0.000
z 0.000 0.000 0.840
Polar
3z2-r21.679
x2-y2-0.350
xy1.180
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 0.384 0.221 0.000
y 0.221 1.660 0.000
z 0.000 0.000 0.986


<r2> (average value of r2) Å2
<r2> 17.842
(<r2>)1/2 4.224