Enthalpy of formation (Hfg), Entropy, Integrated heat capacity (0 K to 298.15 K) (HH), Heat Capacity (Cp)

Property	Value	Uncertainty	units	Reference	Comment
Hfg(298.15K)	-1190.20	0.50	kJ mol-1	CODATA
Hfg(0K)		0.50	kJ mol-1	CODATA
Entropy (298.15K)	301.90	1.00	J K-1 mol-1	CODATA
Integrated Heat Capacity (0 to 298.15K)	17.29	0.10	kJ mol-1	CODATA

Information can also be found for this species in the NIST Chemistry Webbook

Vibrational levels (cm^-1)

Mode Number	Symmetry	Frequency (cm-1)	Frequency Reference	Intensity (km mol-1)	Int. unc.	Intensity Reference	Comment

vibrational zero-point energy:   cm^-1
Calculated vibrational frequencies for GeF₄ (Germanium tetrafluoride).

Rotational Constants (cm^-1)
See section I.F.4 to change rotational constant units

A	B	C	reference	comment

Calculated rotational constants for GeF₄ (Germanium tetrafluoride).

Product of moments of inertia
	amu3Å6		0	gm3 cm6

Geometric Data

Point Group T_d

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

Cartesians

Atom	x (Å)	y (Å)	z (Å)

Atom - Atom Distances
Distances in Å
Calculated geometries for GeF₄ (Germanium tetrafluoride).

Bond descriptions
Examples: C-C single bond, C=C, double bond, C#C triple bond, C:C aromatic bond

Bond Type	Count
F-Ge	4

Connectivity

Atom 1	Atom 2
Ge1	F2
Ge1	F3
Ge1	F4
Ge1	F5

Electronic energy levels (cm^-1)

Energy (cm-1)	Degeneracy	reference	description

Ionization Energies (eV)

Ionization Energy	I.E. unc.	vertical I.E.	v.I.E. unc.	Electron Affinity	E.A. unc.	reference
15.500						webbook

Dipole, Quadrupole and Polarizability
Electric dipole moment
For a molecule with T_d symmetry there is no dipole.
Electric quadrupole moment
For a molecule with T_d symmetry there is no quadrupole.

References
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squib	reference	DOI
CODATA	Cox, J.D.; Wagman, D.D.; Medvedev, V.A.CODATA Key Values for Thermodynamics. Hemisphere, New York, 1989
webbook	NIST Chemistry Webbook (http://webbook.nist.gov/chemistry)

Got a better number? Please email us at cccbdb@nist.gov