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

using model chemistry: LSDA/6-311G**

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 LSDA/6-311G**
 hartrees
Energy at 0K-2663.626213
Energy at 298.15K 
HF Energy-2663.626213
Nuclear repulsion energy126.069444
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 LSDA/6-311G**
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 2252 2224 28.24      
2 Σ 602 594 2.53      
3 Π 368 363 1.55      
3 Π 368 363 1.55      

Unscaled Zero Point Vibrational Energy (zpe) 1794.1 cm-1
Scaled (by 0.9877) Zero Point Vibrational Energy (zpe) 1772.1 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 LSDA/6-311G**
B
0.13921

See section I.F.4 to change rotational constant units
Geometric Data calculated at LSDA/6-311G**

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 -1.122
N2 0.000 0.000 -2.284
Br3 0.000 0.000 0.649

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.16161.7714
N21.16162.9330
Br31.77142.9330

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
Charges from optimized geometry at LSDA/6-311G** Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.018      
2 N -0.210      
3 Br 0.228      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 3.209 3.209
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.715 0.000 0.000
y 0.000 -28.715 0.000
z 0.000 0.000 -34.082
Traceless
 xyz
x 2.683 0.000 0.000
y 0.000 2.683 0.000
z 0.000 0.000 -5.366
Polar
3z2-r2-10.732
x2-y20.000
xy0.000
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.450 0.000 0.000
y 0.000 2.450 0.000
z 0.000 0.000 7.361


<r2> (average value of r2) Å2
<r2> 77.871
(<r2>)1/2 8.824