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

using model chemistry: B1B95/6-31G*

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 B1B95/6-31G*
 hartrees
Energy at 0K-2664.808879
Energy at 298.15K 
HF Energy-2664.808879
Nuclear repulsion energy125.959718
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 B1B95/6-31G*
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 Σ 2350 2230 28.62      
2 Σ 607 576 1.56      
3 Π 410 389 2.23      
3 Π 410 389 2.23      

Unscaled Zero Point Vibrational Energy (zpe) 1888.4 cm-1
Scaled (by 0.9493) Zero Point Vibrational Energy (zpe) 1792.7 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 B1B95/6-31G*
B
0.13899

See section I.F.4 to change rotational constant units
Geometric Data calculated at B1B95/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.125
N2 0.000 0.000 -2.285
Br3 0.000 0.000 0.650

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.15981.7747
N21.15982.9345
Br31.77472.9345

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 B1B95/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C 0.325      
2 N -0.385      
3 Br 0.060      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 3.104 3.104
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.333 0.000 0.000
y 0.000 -28.333 0.000
z 0.000 0.000 -33.585
Traceless
 xyz
x 2.626 0.000 0.000
y 0.000 2.626 0.000
z 0.000 0.000 -5.252
Polar
3z2-r2-10.504
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.650 0.000 0.000
y 0.000 2.650 0.000
z 0.000 0.000 6.959


<r2> (average value of r2) Å2
<r2> 77.701
(<r2>)1/2 8.815