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

using model chemistry: MP2=FULL/6-31G(2df,p)

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 MP2=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-2662.941336
Energy at 298.15K 
HF Energy-2662.356932
Nuclear repulsion energy126.813131
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 MP2=FULL/6-31G(2df,p)
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 2174 2043 5.05      
2 Σ 653 614 1.44      
3 Π 412 388 2.23      
3 Π 412 388 2.23      

Unscaled Zero Point Vibrational Energy (zpe) 1826.0 cm-1
Scaled (by 0.9399) Zero Point Vibrational Energy (zpe) 1716.3 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 MP2=FULL/6-31G(2df,p)
B
0.14069

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.105
N2 0.000 0.000 -2.278
Br3 0.000 0.000 0.645

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.17331.7496
N21.17332.9229
Br31.74962.9229

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