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: B2PLYP/6-31G*

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 B2PLYP/6-31G*
 hartrees
Energy at 0K-715.181463
Energy at 298.15K-715.180447
HF Energy-715.152383
Nuclear repulsion energy26.282338
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/6-31G*
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 462 438 44.54      

Unscaled Zero Point Vibrational Energy (zpe) 230.9 cm-1
Scaled (by 0.9492) Zero Point Vibrational Energy (zpe) 219.1 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 B2PLYP/6-31G*
B
0.31291

See section I.F.4 to change rotational constant units
Geometric Data calculated at B2PLYP/6-31G*

Point Group is C∞v

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
Ca1 0.000 0.000 0.558
C2 0.000 0.000 -1.859

Atom - Atom Distances (Å)
  Ca1 C2
Ca12.4161
C22.4161

picture of Calcium monocarbide state 1 conformation 1
More geometry information
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at B2PLYP/6-31G* Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 Ca 0.493      
2 C -0.493      


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 3.674 3.674
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -25.176 0.000 0.000
y 0.000 -25.176 0.000
z 0.000 0.000 -37.776
Traceless
 xyz
x 6.300 0.000 0.000
y 0.000 6.300 0.000
z 0.000 0.000 -12.599
Polar
3z2-r2-25.199
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 16.224 0.000 0.000
y 0.000 16.224 0.000
z 0.000 0.000 14.907


<r2> (average value of r2) Å2
<r2> 45.291
(<r2>)1/2 6.730