Joy H. Farnaby

Reduction of heteroleptic Ln( iii ) [Ln(Tp) 2 (OTf)] (Tp = hydrotris(1-pyrazolyl)borate; OTf = triflate) with either an Al( i ) anion or KC 8 yielded the adduct-free Ln( ii ) complexes dimeric 1-Eu [{Eu(Tp)( μ-κ 1 : η 5 -Tp)} 2 ] and monomeric 1-Yb [Yb(Tp) 2 ].