Fluorid titanatý

Fluorid titanatý
Systematický názevFluorid titanatý
Anglický názevTitanium difluoride
Německý názevTitan(II)-fluorid
Sumární vzorecTiF2
Vzhledčerné krystaly
Identifikace
Registrační číslo CAS13814-20-5
PubChem136151
UN kód3260
SMILESF[Ti]F
InChIInChI=1S/2FH.Ti/h2*1H;/q;;+2/p-2
Key: YOBCTIIWHLYFII-UHFFFAOYSA-L
Vlastnosti
Molární hmotnost85,86 g/mol
Teplota tání1277 °C
Teplota varu2152 °C
Hustota3,44 g/cm3[1]
Rozpustnost ve voděnerozpustný
Struktura
Krystalová strukturakubická
Hrana krystalové mřížkya = 3,672 Å
Termodynamické vlastnosti
Standardní slučovací entalpie ΔHf°−753 kJ/mol
Měrné teplo52,7 J/(mol*K)
Není-li uvedeno jinak, jsou použity
jednotky SI a STP (25 °C, 100 kPa).
Některá data mohou pocházet z datové položky.

Fluorid titanatý je anorganická sloučenina s chemickým vzorcem TiF2.

Příprava

Fluorid titanatý lze připravit za zvýšeného tlaku a při teplotě 700–1400 °C reakcí fluoridu titanitého s titanem:

2 TiF3 + Ti → 3 TiF2

Vlastnosti

Fluorid titanatý tvoří černé krystaly. Fluorid titanatý krystalizuje v kubické krystalové soustavě, typu struktury fluoritu s prostorovou grupou Fm3m a hranou mřížky a = 3,672 Å.[2][3]

Při zahřívání fluorid titanatý disproporcionuje:

2 TiF2 → TiF4 + Ti

Reference

V tomto článku byl použit překlad textu z článku Фторид титана(II) na ruské Wikipedii.

  1. ↑ ELEMENTS, American. Titanium Difluoride. American Elements [online]. [cit. 2023-11-16]. Dostupné online. (anglicky) 
  2. ↑ mp-282: TiF2 (cubic, Fm-3m, 225). legacy.materialsproject.org [online]. [cit. 2023-11-16]. Dostupné online. 
  3. ↑ SHEIN, I. R.; IVANOVSKII, A. L. Electronic Structure of Fluorite‐Like TiF 2. physica status solidi (b). 1990-01, roč. 157, čís. 1. Dostupné online [cit. 2023-11-16]. ISSN 0370-1972. DOI 10.1002/pssb.2221570154. (anglicky) 
Fluoridy s prvkem v oxidačním čísle II.
Fluorid stříbrnatý (AgF2) • Fluorid americnatý (AmF2) • Fluorid argonatý (ArF2) • Fluorid barnatý (BaF2) • Fluorid berylnatý (BeF2) • Difluorkarben (CF2) • Fluorid vápenatý (CaF2) • Fluorid kademnatý (CdF2) • Fluorid kobaltnatý (CoF2) • Fluorid chromnatý (CrF2) • Fluorid měďnatý (CuF2) • Fluorid dysprosnatý (DyF2) • Fluorid europnatý (EuF2) • Fluorid železnatý (FeF2) • Fluorid gallnatý (GaF2) • Fluorid germanatý (GeF2) • Fluorid rtuťnatý (HgF2) • Fluorid iridnatý (IrF2) • Fluorid kryptonatý (KrF2) • Fluorid hořečnatý (MgF2) • Fluorid manganatý (MnF2) • Fluorid neodymnatý (NdF2) • Fluorid nikelnatý (NiF2) • Difluorid kyslíku (OF2) • Fluorid olovnatý (PbF2) • Fluorid palladnatý (PdF2) • Fluorid polonatý (PoF2) • Fluorid platnatý (PtF2) • Fluorid radnatý (RaF2) • Fluorid radonatý (RnF2) • Fluorid sirnatý (SF2) • Fluorid samarnatý (SmF2) • Fluorid cínatý (SnF2) • Fluorid strontnatý (SrF2) • Fluorid titanatý (TiF2) • Fluorid thulnatý (TmF2) • Fluorid vanadnatý (VF2) • Fluorid xenonatý (XeF2) • Fluorid ytterbnatý (YbF2) • Fluorid zinečnatý (ZnF2) • Fluorid zirkonatý (ZrF2)
viz též Dibortetrafluorid (B2F4)

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