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Experimental data for NaK (Sodium Potassium)

22 02 02 11 45
INChI INChIKey SMILES IUPAC name
InChI=1S/K.Na BITYAPCSNKJESK-UHFFFAOYSA-N [Na][K]
State Conformation
1Σ C*V
Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)
Property Value Uncertainty units Reference Comment
Information can also be found for this species in the NIST Chemistry Webbook
Vibrational levels (cm-1) vibrations
Mode Number Symmetry Frequency Intensity Comment Description
Fundamental(cm-1) Harmonic(cm-1) Reference (km mol-1) unc. Reference
1 Σ   124 webbook       we

vibrational zero-point energy:   cm-1 (from fundamental vibrations)
Calculated vibrational frequencies for NaK (Sodium Potassium).
Rotational Constants (cm-1) rotational constants
See section I.F.4 to change rotational constant units
A B C reference comment
  0.09050   webbook

Calculated rotational constants for NaK (Sodium Potassium).
Product of moments of inertia moments of inertia
186.2722amu Å2   3.09317E-38gm cm2
Geometric Data
picture of Sodium Potassium

Point Group C∞v


Internal coordinates
distances (r) in Å, angles (a) in degrees, dihedrals (d) in degrees
Description Value unc. Connectivity Reference Comment
Atom 1 Atom 2 Atom 3 Atom 4
rNaK 3.589 0.010 1 2 webbook re

Cartesians
Atom x (Å) y (Å) z (Å)
Na1 0.0000 0.0000 0.0000
K2 0.0000 0.0000 3.5890

Atom - Atom Distances bond lengths
Distances in Å
  Na1 K2
Na1   3.5890
K2 3.5890  

Calculated geometries for NaK (Sodium Potassium).

Bond descriptions


Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond
Bond Type Count
Na-K 1

Connectivity
Atom 1 Atom 2
Na1 K2
Electronic energy levels (cm-1)
Energy (cm-1) Degeneracy reference description
0 1 webbook 1Σ

Ionization Energies (eV)
Ionization Energy I.E. unc. vertical I.E. v.I.E. unc. reference
4.416 0.000     webbook

Electron Affinity (eV)
Electron Affinity unc. reference
0.465 0.030 webbook
Dipole, Quadrupole and Polarizability
Electric dipole moment dipole
State Config State description Conf description Exp. min. Dipole (Debye) Reference comment Point Group Components
x y z total dipole quadrupole
1 1 1Σ C∞v True 0.000 0.000 2.667 2.667 webbook   C∞v 1 1
Experimental dipole measurement abbreviations: MW microwave; DT Dielectric with Temperature variation; DR Indirect (usually an upper limit); MB Molecular beam
Calculated electric dipole moments for NaK (Sodium Potassium).
Electric quadrupole moment quadrupole
State Config State description Conf description Exp. min. Quadrupole (D Å) Reference comment Point Group Components
xx yy zz dipole quadrupole
1 1 1Σ C∞v True       C∞v 1 1

Calculated electric quadrupole moments for NaK (Sodium Potassium).

References
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squib reference DOI
webbook NIST Chemistry Webbook (http://webbook.nist.gov/chemistry) 10.18434/T4D303

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