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

using model chemistry: CCSD/aug-cc-pVTZ

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 CCSD/aug-cc-pVTZ
 hartrees
Energy at 0K-2665.358014
Energy at 298.15K 
HF Energy-2664.776696
Nuclear repulsion energy125.289425
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 CCSD/aug-cc-pVTZ
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 2298 2196 10.30      
2 Σ 600 574 0.43      
3 Π 362 346 2.32      
3 Π 362 346 2.32      

Unscaled Zero Point Vibrational Energy (zpe) 1811.4 cm-1
Scaled (by 0.9558) Zero Point Vibrational Energy (zpe) 1731.3 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 CCSD/aug-cc-pVTZ
B
0.13758

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.136
N2 0.000 0.000 -2.293
Br3 0.000 0.000 0.654

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.15691.7900
N21.15692.9469
Br31.79002.9469

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