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

using model chemistry: CCD/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 CCD/6-31G**
 hartrees
Energy at 0K-2662.571780
Energy at 298.15K 
HF Energy-2662.168005
Nuclear repulsion energy124.514697
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 CCD/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 2325 2180 6.44      
2 Σ 587 550 0.56      
3 Π 384 360 2.89      
3 Π 384 360 2.89      

Unscaled Zero Point Vibrational Energy (zpe) 1839.6 cm-1
Scaled (by 0.9376) Zero Point Vibrational Energy (zpe) 1724.8 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 CCD/6-31G**
B
0.13587

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

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.142
N2 0.000 0.000 -2.308
Br3 0.000 0.000 0.658

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.16611.7998
N21.16612.9659
Br31.79982.9659

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