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

using model chemistry: MP3=FULL/Def2TZVPP

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/Def2TZVPP
 hartrees
Energy at 0K-2665.440264
Energy at 298.15K 
HF Energy-2664.733798
Nuclear repulsion energy125.852207
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/Def2TZVPP
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 2395 2395 16.78      
2 Σ 614 614 0.20      
3 Π 379 379 2.43      
3 Π 379 379 2.43      

Unscaled Zero Point Vibrational Energy (zpe) 1882.7 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1882.7 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 MP3=FULL/Def2TZVPP
B
0.13885

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP3=FULL/Def2TZVPP

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.134
N2 0.000 0.000 -2.281
Br3 0.000 0.000 0.651

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.14731.7848
N21.14732.9321
Br31.78482.9321

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