Titanium (III) Chloride

[7705-07-9] Cl3Ti (MW 154.23) InChI = 1S/3ClH.Ti/h3*1H;/q;;;+3/p-3 InChIKey = YONPGGFAJWQGJC-UHFFFAOYSA-K (aqueous functional group reducing agent; after reducing to low-valent species, reductive coupling reagent of carbonyls to vicinal diols and alkenes) Physical Data: mp 440 °C (dec); d 2.640 g cm−3. Solubility: sol water, alcohol; insol diethyl ether, CHCl3, CCl4, CS2, benzene. Form Supplied in: dark red–violet solid; dimethoxyethane complex, TiCl31.5DME '18557-31-8', solution in CH2Cl2/THF, solution in hydrochloric acid. Purification: sublimation of solid at 1 mmHg.1b Analysis of Reagent Purity: aqueous solutions of TiCl3 can be titrated against 0.1 N cerium(IV) sulfate.3 Handling, Storage, and Precautions: dry powder is pyrophoric in air; moisture sensitive; reacts violently with water, and causes skin burns. Heating in vacuo over ca. 450 °C gives TiCl2 and TiCl4. Use in a fume hood and in a dry box under inert atmosphere. TiCl3(DME)1.5 is air sensitive, but can be stored indefinitely under Ar at room temp. Reactions involving low-valent titanium should be run under argon.1