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

using model chemistry: B2PLYP=FULLultrafine/3-21G

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 B2PLYP=FULLultrafine/3-21G
 hartrees
Energy at 0K-2653.523278
Energy at 298.15K 
HF Energy-2653.432063
Nuclear repulsion energy122.650724
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 B2PLYP=FULLultrafine/3-21G
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 2207 2207 1.95 37.36 0.26 0.42
2 Σ 565 565 0.34 7.17 0.34 0.51
3 Π 455 455 0.65 1.14 0.75 0.86
3 Π 455 455 0.65 1.14 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1840.2 cm-1
Scaled (by 1) Zero Point Vibrational Energy (zpe) 1840.2 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 B2PLYP=FULLultrafine/3-21G
B
0.13188

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP=FULLultrafine/3-21G

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.165
N2 0.000 0.000 -2.340
Br3 0.000 0.000 0.668

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.17511.8328
N21.17513.0079
Br31.83283.0079

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