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

using model chemistry: MP3=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 MP3=FULL/6-31G(2df,p)
 hartrees
Energy at 0K-2662.942040
Energy at 298.15K 
HF Energy-2662.360804
Nuclear repulsion energy127.142515
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 MP3=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 2426 2426 18.47      
2 Σ 655 655 0.28      
3 Π 428 428 2.76      
3 Π 428 428 2.76      

Unscaled Zero Point Vibrational Energy (zpe) 1968.9 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1968.9 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 MP3=FULL/6-31G(2df,p)
B
0.14161

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.114
N2 0.000 0.000 -2.264
Br3 0.000 0.000 0.644

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.15001.7576
N21.15002.9076
Br31.75762.9076

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