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All results from a given calculation for BrCN (Cyanogen bromide)

using model chemistry: B2PLYP/6-311G**

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 1Σ
Energy calculated at B2PLYP/6-311G**
 hartrees
Energy at 0K-2666.444250
Energy at 298.15K 
HF Energy-2666.299948
Nuclear repulsion energy124.737314
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/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 Σ 2219 2219 10.50      
2 Σ 588 588 1.16      
3 Π 354 354 2.01      
3 Π 354 354 2.01      

Unscaled Zero Point Vibrational Energy (zpe) 1756.8 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1756.8 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/6-311G**
B
0.13636

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.140
N2 0.000 0.000 -2.304
Br3 0.000 0.000 0.656

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.16431.7965
N21.16432.9607
Br31.79652.9607

picture of Cyanogen bromide state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
N2 C1 Br3 180.000
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.042      
2 N -0.252      
3 Br 0.210      


Electric dipole moments


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 2.414 0.000 0.000
y 0.000 2.414 0.000
z 0.000 0.000 7.092


<r2> (average value of r2) Å2
<r2> 79.308
(<r2>)1/2 8.905