Abstract
The title compound (C5Me5)2Th[-N=C(Ph)(tpy)]2 (1) (Ph=C6H5, tpy=2,2′:6′,2″-terpyridine) was synthesized and characterized by NMR spectroscopy, elemental analysis, and X-ray crystallography. This system represents the first example of an actinide complex featuring ketimide ligands with both a phenyl group and a terpyridyl group. The complex crystallizes in the monoclinic space group P21/c with unit cell parameters a = 10.7037(6) A, b = 32.0735(16) A, c = 34.6506(18) A, β = 90.127(3)°, V = 11895.7(11) A3, Z = 8, D calc = 1.406 Mg/m3. The thorium(IV) complex adopts a pseudo-tetrahedral geometry, with the two ketimide ligands occupying the plane bisecting the metallocene unit. Structural comparisons of the title complex are made with related metallocene thorium(IV) bis(ketimide) derivatives. This report describes the synthesis of (C5Me5)2Th[-N=C(Ph)(tpy)]2 (Ph=C6H5, tpy=2,2′:6′,2″-terpyridine) and its characterization by NMR spectroscopy, elemental analysis, and X-ray crystallography.
Published Version
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