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

using model chemistry: MP2=FULL/aug-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 MP2=FULL/aug-cc-pVTZ
 hartrees
Energy at 0K-2665.437331
Energy at 298.15K 
HF Energy-2664.774051
Nuclear repulsion energy125.872373
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 MP2=FULL/aug-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 2138 2034 5.95 80.10 0.25 0.40
2 Σ 613 583 1.53 5.82 0.06 0.11
3 Π 355 338 1.88 0.62 0.75 0.86
3 Π 355 338 1.88 0.62 0.75 0.86

Unscaled Zero Point Vibrational Energy (zpe) 1730.4 cm-1
Scaled (by 0.9514) Zero Point Vibrational Energy (zpe) 1646.3 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 MP2=FULL/aug-cc-pVTZ
B
0.13872

See section I.F.4 to change rotational constant units
Geometric Data calculated at MP2=FULL/aug-cc-pVTZ

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.120
N2 0.000 0.000 -2.290
Br3 0.000 0.000 0.650

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.17061.7698
N21.17062.9403
Br31.76982.9403

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