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All results from a given calculation for NH2NO2 (nitramide)

using model chemistry: TPSSh/6-31G**

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/6-31G**
Rotational Constants (cm-1) from geometry optimized at TPSSh/6-31G**
See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G**
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at TPSSh/6-31G**
 hartrees
Energy at 0K-261.043258
Energy at 298.15K-261.048235
HF Energy-261.043258
Nuclear repulsion energy126.530376
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/6-31G**
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' 3511 3366 25.87      
2 A' 1610 1543 64.03      
3 A' 1390 1332 216.71      
4 A' 1009 967 17.33      
5 A' 797 764 159.08      
6 A' 718 689 95.44      
7 A' 622 596 94.32      
8 A" 3658 3507 40.90      
9 A" 1699 1629 261.11      
10 A" 1233 1182 44.32      
11 A" 552 529 3.29      
12 A" 418 401 27.09      

Unscaled Zero Point Vibrational Energy (zpe) 8608.3 cm-1
Scaled (by 0.9587) Zero Point Vibrational Energy (zpe) 8252.7 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/6-31G**
ABC
0.41469 0.39574 0.20395

See section I.F.4 to change rotational constant units
Geometric Data calculated at TPSSh/6-31G**

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.081 -1.251 0.000
N2 0.004 0.144 0.000
O3 0.004 0.685 1.102
O4 0.004 0.685 -1.102
H5 -0.325 -1.608 -0.859
H6 -0.325 -1.608 0.859

Atom - Atom Distances (Å)
  N1 N2 O3 O4 H5 H6
N11.39762.22982.22981.01511.0151
N21.39761.22801.22801.97931.9793
O32.22981.22802.20463.03602.3302
O42.22981.22802.20462.33023.0360
H51.01511.97933.03602.33021.7180
H61.01511.97932.33023.03601.7180

picture of nitramide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O3 116.113 N1 N2 O4 116.113
N2 N1 H5 109.227 N2 N1 H6 109.227
O3 N2 O4 127.688 H5 N1 H6 115.611
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at TPSSh/6-31G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 N -0.405      
2 N 0.569      
3 O -0.391      
4 O -0.391      
5 H 0.309      
6 H 0.309      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -1.312 -3.519 0.000 3.756
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 1.636 0.088 0.000
y 0.088 4.080 0.000
z 0.000 0.000 4.367


<r2> (average value of r2) Å2
<r2> 58.622
(<r2>)1/2 7.657