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

using model chemistry: MP4/cc-pVDZ

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 MP4/cc-pVDZ
 hartrees
Energy at 0K-2665.116442
Energy at 298.15K 
HF Energy-2664.666961
Nuclear repulsion energy123.216008
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 MP4/cc-pVDZ
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 2091 2022        
2 Σ 577 558        
3 Π 332 321        
3 Π 332 321        

Unscaled Zero Point Vibrational Energy (zpe) 1665.8 cm-1
Scaled (by 0.9669) Zero Point Vibrational Energy (zpe) 1610.7 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 MP4/cc-pVDZ
B
0.13298

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP4/cc-pVDZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.147
N2 0.000 0.000 -2.337
Br3 0.000 0.000 0.664

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.18991.8115
N21.18993.0014
Br31.81153.0014

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