return to home page Computational Chemistry Comparison and Benchmark DataBase Release 22 (May 2022) Standard Reference Database 101 National Institute of Standards and Technology
You are here: Calculated > Energy > Optimized > Energy

All results from a given calculation for CaC (Calcium monocarbide)

using model chemistry: B3PW91/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C*V 3Σ
Energy calculated at B3PW91/6-31G(2df,p)
 hartrees
Energy at 0K-715.350021
Energy at 298.15K-715.348972
HF Energy-715.350021
Nuclear repulsion energy26.340523
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 B3PW91/6-31G(2df,p)
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 420 404 4.77      

Unscaled Zero Point Vibrational Energy (zpe) 209.9 cm-1
Scaled (by 0.9614) Zero Point Vibrational Energy (zpe) 201.8 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 B3PW91/6-31G(2df,p)
B
0.31429

See section I.F.4 to change rotational constant units
Geometric Data calculated at B3PW91/6-31G(2df,p)

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 0.556
C2 0.000 0.000 -1.854

Atom - Atom Distances (Å)
  Ca1 C2
Ca12.4108
C22.4108

picture of Calcium monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B3PW91/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.413      
2 C -0.413      


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 3.968 3.968
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.167 0.000 0.000
y 0.000 -25.167 0.000
z 0.000 0.000 -34.423
Traceless
 xyz
x 4.628 0.000 0.000
y 0.000 4.628 0.000
z 0.000 0.000 -9.256
Polar
3z2-r2-18.512
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 19.148 0.000 0.000
y 0.000 19.148 0.000
z 0.000 0.000 23.466


<r2> (average value of r2) Å2
<r2> 44.470
(<r2>)1/2 6.669