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

using model chemistry: CCSD(T)/6-311G*

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(T)/6-311G*
 hartrees
Energy at 0K-2665.121170
Energy at 298.15K 
HF Energy-2664.667585
Nuclear repulsion energy124.102775
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(T)/6-311G*
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 2216 2133        
2 Σ 580 558        
3 Π 334 321        
3 Π 334 321        

Unscaled Zero Point Vibrational Energy (zpe) 1731.5 cm-1
Scaled (by 0.9626) Zero Point Vibrational Energy (zpe) 1666.8 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 CCSD(T)/6-311G*
B
0.13498

See section I.F.4 to change rotational constant units
Geometric Data calculated at CCSD(T)/6-311G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.146
N2 0.000 0.000 -2.316
Br3 0.000 0.000 0.660

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.17021.8056
N21.17022.9758
Br31.80562.9758

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