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All results from a given calculation for NH2NO2 (nitramide)

using model chemistry: B2PLYP=FULLultrafine/3-21G*

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 B2PLYP=FULLultrafine/3-21G*
Rotational Constants (cm-1) from geometry optimized at B2PLYP=FULLultrafine/3-21G*
See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G*
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability

Conformer 2 (CS)

Jump to S1C1
Energy calculated at B2PLYP=FULLultrafine/3-21G*
 hartrees
Energy at 0K-259.252571
Energy at 298.15K 
HF Energy-259.067701
Nuclear repulsion energy121.695960
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 B2PLYP=FULLultrafine/3-21G*
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' 3450 3450 28.56      
2 A' 1613 1613 49.59      
3 A' 1179 1179 142.29      
4 A' 879 879 29.67      
5 A' 677 677 140.90      
6 A' 630 630 66.28      
7 A' 519 519 161.54      
8 A" 3616 3616 40.40      
9 A" 1467 1467 44.01      
10 A" 1151 1151 49.19      
11 A" 498 498 8.85      
12 A" 373 373 24.63      

Unscaled Zero Point Vibrational Energy (zpe) 8025.5 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 8025.5 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 B2PLYP=FULLultrafine/3-21G*
ABC
0.37521 0.37281 0.18811

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G*

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
N1 0.070 -1.294 0.000
N2 0.006 0.149 0.000
O3 0.006 0.706 1.161
O4 0.006 0.706 -1.161
H5 -0.316 -1.640 -0.877
H6 -0.316 -1.640 0.877

Atom - Atom Distances (Å)
  N1 N2 O3 O4 H5 H6
N11.44462.31342.31341.01841.0184
N21.44461.28761.28762.01782.0178
O32.31341.28762.32183.12362.3845
O42.31341.28762.32182.38453.1236
H51.01842.01783.12362.38451.7535
H61.01842.01782.38453.12361.7535

picture of nitramide state 1 conformation 2
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N1 N2 O3 115.597 N1 N2 O4 115.597
N2 N1 H5 108.790 N2 N1 H6 108.790
O3 N2 O4 128.751 H5 N1 H6 118.842
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability