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All results from a given calculation for NH2NO2 (nitramide)

using model chemistry: TPSSh/TZVP

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

Conformer 2 (CS)

Jump to S1C1
Energy calculated at TPSSh/TZVP
 hartrees
Energy at 0K-261.141531
Energy at 298.15K-261.146511
HF Energy-261.141531
Nuclear repulsion energy126.820202
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/TZVP
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' 3505 3378 31.56      
2 A' 1614 1556 59.36      
3 A' 1351 1302 246.98      
4 A' 995 959 23.38      
5 A' 798 769 129.32      
6 A' 719 693 80.71      
7 A' 612 589 131.45      
8 A" 3641 3509 45.68      
9 A" 1642 1582 333.33      
10 A" 1227 1183 60.38      
11 A" 555 535 2.31      
12 A" 416 401 24.20      

Unscaled Zero Point Vibrational Energy (zpe) 8537.8 cm-1
Scaled (by 0.9637) Zero Point Vibrational Energy (zpe) 8227.9 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 TPSSh/TZVP
ABC
0.41965 0.39444 0.20470

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

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.085 -1.252 0.000
N2 0.001 0.145 0.000
O3 0.001 0.687 1.096
O4 0.001 0.687 -1.096
H5 -0.305 -1.621 -0.859
H6 -0.305 -1.621 0.859

Atom - Atom Distances (Å)
  N1 N2 O3 O4 H5 H6
N11.39952.22842.22841.01341.0134
N21.39951.22231.22231.98761.9876
O32.22841.22232.19143.03982.3397
O42.22841.22232.19142.33973.0398
H51.01341.98763.03982.33971.7188
H61.01341.98762.33973.03981.7188

picture of nitramide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O3 116.253 N1 N2 O4 116.253
N2 N1 H5 109.889 N2 N1 H6 109.889
O3 N2 O4 127.390 H5 N1 H6 115.995
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/TZVP Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.297      
2 N 0.206      
3 O -0.200      
4 O -0.200      
5 H 0.245      
6 H 0.245      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.210 -3.697 0.000 3.890
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 2.164 0.017 0.000
y 0.017 4.529 0.000
z 0.000 0.000 4.935


<r2> (average value of r2) Å2
<r2> 58.840
(<r2>)1/2 7.671