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

using model chemistry: mPW1PW91/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 mPW1PW91/cc-pVDZ
 hartrees
Energy at 0K-2667.110720
Energy at 298.15K 
HF Energy-2667.110720
Nuclear repulsion energy125.236876
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 mPW1PW91/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 2329 2232 26.97      
2 Σ 605 579 1.24      
3 Π 370 355 1.72      
3 Π 370 355 1.72      

Unscaled Zero Point Vibrational Energy (zpe) 1837.1 cm-1
Scaled (by 0.9583) Zero Point Vibrational Energy (zpe) 1760.5 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 mPW1PW91/cc-pVDZ
B
0.13743

See section I.F.4 to change rotational constant units
Geometric Data calculated at mPW1PW91/cc-pVDZ

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 -2.296
Br3 0.000 0.000 0.654

Atom - Atom Distances (Å)
  C1 N2 Br3
C11.16211.7877
N21.16212.9499
Br31.78772.9499

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 mPW1PW91/cc-pVDZ Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.036      
2 N -0.122      
3 Br 0.158      


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 3.059 3.059
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -28.539 0.000 0.000
y 0.000 -28.539 0.000
z 0.000 0.000 -33.479
Traceless
 xyz
x 2.470 0.000 0.000
y 0.000 2.470 0.000
z 0.000 0.000 -4.939
Polar
3z2-r2-9.879
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 2.374 0.000 0.000
y 0.000 2.374 0.000
z 0.000 0.000 6.858


<r2> (average value of r2) Å2
<r2> 78.432
(<r2>)1/2 8.856