Thorium indenyl compound

In the case of the thorium indenyl compound, photolysis produces Th(indenyl)3 and the alkane, the added hydrogen being derived from the indenyl ligand. This new compound of Th(III) is orange-red and soluble in hydrocarbons. 

Thorium(III) and uranium(III) indenyl compounds, (C9H7)3An, are also known and the molecular stmcture of U(C9H7)3 has been reported. The uranium coordination geometry is approximately trigonal, with U-C bond distances ranging from ca. 2.75(2) to 2.81(2) A. ... 

The tris(cyclopentadienyl)thorium-, -uranium- and -plutonium chlorides are best prepared from TlCp in dimethoxyethane Np(Cp- )3Cl is formed in the Be(Cp)2 melt reaction . Analogous complexes containing bromide, iodide and/or indenyl ligands are prepared from K[Cp] or K[indenyl] and the appropriate MX4 compound (see Table 2). 

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