return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for BrONO (Bromine nitrite)

using model chemistry: mPW1PW91/3-21G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS trans 1A'
Energy calculated at mPW1PW91/3-21G
 hartrees
Energy at 0K-2765.808546
Energy at 298.15K-2765.812610
HF Energy-2765.808546
Nuclear repulsion energy223.267413
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 mPW1PW91/3-21G
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' 1526 1457 189.99      
2 A' 853 815 256.51      
3 A' 738 704 46.54      
4 A' 406 387 7.73      
5 A' 213 204 0.13      
6 A" 161 153 0.00      

Unscaled Zero Point Vibrational Energy (zpe) 1948.5 cm-1
Scaled (by 0.9546) Zero Point Vibrational Energy (zpe) 1860.1 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 mPW1PW91/3-21G
ABC
1.58683 0.06475 0.06221

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/3-21G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Br1 -0.762 -0.798 0.000
O2 0.000 0.912 0.000
N3 1.541 0.783 0.000
O4 1.987 1.894 0.000

Atom - Atom Distances (Å)
  Br1 O2 N3 O4
Br11.87222.79343.8478
O21.87221.54592.2166
N32.79341.54591.1970
O43.84782.21661.1970

picture of Bromine nitrite state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
Br1 O2 N3 109.247 O2 N3 O4 107.141
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at mPW1PW91/3-21G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Br 0.248      
2 O -0.373      
3 N 0.343      
4 O -0.218      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  -0.033 -1.193 0.000 1.194
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -33.363 0.924 0.000
y 0.924 -33.952 0.000
z 0.000 0.000 -32.821
Traceless
 xyz
x 0.024 0.924 0.000
y 0.924 -0.860 0.000
z 0.000 0.000 0.836
Polar
3z2-r21.672
x2-y20.589
xy0.924
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 5.000 3.088 0.000
y 3.088 5.053 0.000
z 0.000 0.000 1.097


<r2> (average value of r2) Å2
<r2> 151.318
(<r2>)1/2 12.301