The reactions of TiCl3, and of UF4 with TiCl3 in liquid ammonia: unusual coordination spheres in [Ti(NH3)8]Cl3·6NH3 and [UF(NH3)8]Cl3·3.5NH3

Patrick Woidy; Antti J Karttunen; Stefan S Rudel; Florian Kraus

doi:10.1039/c5cc04411a

The reactions of TiCl3, and of UF4 with TiCl3 in liquid ammonia: unusual coordination spheres in [Ti(NH3)8]Cl3·6NH3 and [UF(NH3)8]Cl3·3.5NH3

Chem Commun (Camb). 2015 Jul 28;51(59):11826-9. doi: 10.1039/c5cc04411a.

Authors

Patrick Woidy¹, Antti J Karttunen, Stefan S Rudel, Florian Kraus

Affiliation

¹ Anorganische und Fluorchemie der Philipps-Universität Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany. florian.kraus@chemie.uni-marburg.de.

PMID: 26109184
DOI: 10.1039/c5cc04411a

Abstract

TiCl3 and NH3 form octaammine titanium(III) chloride ammonia (1/6), [Ti(NH3)8]Cl3·6NH3, which is the first structurally characterized octaammine complex of a transition metal. An excess of TiCl3 reacts with UF4 in liquid NH3 and forms octaammine fluorido uranium(IV) chloride ammonia (1/3.5), [UF(NH3)8]Cl3·3.5NH3. It shows a distorted threefold-capped trigonal-prismatic coordination sphere around U(IV).