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All results from a given calculation for NH2NO2 (nitramide)

using model chemistry: TPSSh/6-311G*

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 2 yes CS 1A'

Conformer 1 (C2V)

Jump to S1C2
Vibrational Frequencies calculated at TPSSh/6-311G*
Rotational Constants (cm-1) from geometry optimized at TPSSh/6-311G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-311G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at TPSSh/6-311G*
 hartrees
Energy at 0K-261.111694
Energy at 298.15K-261.116709
HF Energy-261.111694
Nuclear repulsion energy126.879243
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 TPSSh/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' 3516 3386 20.26      
2 A' 1660 1599 60.02      
3 A' 1374 1323 230.81      
4 A' 1011 974 22.30      
5 A' 825 795 208.04      
6 A' 734 707 67.74      
7 A' 634 611 76.10      
8 A" 3645 3511 27.46      
9 A" 1686 1624 291.72      
10 A" 1258 1212 59.05      
11 A" 560 539 2.86      
12 A" 422 407 27.87      

Unscaled Zero Point Vibrational Energy (zpe) 8662.1 cm-1
Scaled (by 0.9632) Zero Point Vibrational Energy (zpe) 8343.3 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 TPSSh/6-311G*
ABC
0.41961 0.39481 0.20494

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.089 -1.253 0.000
N2 0.001 0.147 0.000
O3 0.001 0.685 1.096
O4 0.001 0.685 -1.096
H5 -0.323 -1.612 -0.853
H6 -0.323 -1.612 0.853

Atom - Atom Distances (Å)
  N1 N2 O3 O4 H5 H6
N11.40322.22822.22821.01321.0132
N21.40321.22051.22051.98181.9818
O32.22821.22052.19123.02962.3323
O42.22821.22052.19122.33233.0296
H51.01321.98183.02962.33231.7063
H61.01321.98182.33233.02961.7063

picture of nitramide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O3 116.089 N1 N2 O4 116.089
N2 N1 H5 109.128 N2 N1 H6 109.128
O3 N2 O4 127.711 H5 N1 H6 114.713
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-311G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.540      
2 N 0.392      
3 O -0.287      
4 O -0.287      
5 H 0.360      
6 H 0.360      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.333 -3.525 0.000 3.768
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 1.686 0.056 0.000
y 0.056 4.109 0.000
z 0.000 0.000 4.507


<r2> (average value of r2) Å2
<r2> 58.611
(<r2>)1/2 7.656