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

using model chemistry: QCISD(T)/daug-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 QCISD(T)/daug-cc-pVTZ
 hartrees
Energy at 0K-2665.392062
Energy at 298.15K 
HF Energy-2664.775405
Nuclear repulsion energy124.836656
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 QCISD(T)/daug-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 2214 2214        
2 Σ 589 589        
3 Π 350 350        
3 Π 350 350        

Unscaled Zero Point Vibrational Energy (zpe) 1751.3 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1751.3 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 QCISD(T)/daug-cc-pVTZ
B
0.13656

See section I.F.4 to change rotational constant units
Geometric Data calculated at QCISD(T)/daug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.137
N2 0.000 0.000 -2.304
Br3 0.000 0.000 0.656

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.16631.7931
N21.16632.9594
Br31.79312.9594

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