Synonyms: Ytterbium,tris(2,2,6,6-tetramethyl-3,5-heptanedionato)- (7CI,8CI); Ytterbium, tris(2,2,6,6-tetramethyl-3,5-heptanedionato-O,O')-,(OC-6-11)-; Ytterbium, tris(2,2,6,6-tetramethyl-3,5-heptanedionato-kO,kO')-, (OC-6-11)- (9CI); 3,5-Heptanedione,2,2,6,6-tetramethyl-, ytterbium complex; NSC 177672;Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)ytterbium;Tris(2,2,6,6-tetramethyl-3,5-heptanedionato)ytterbium(III);Tris(dipivaloylmethanato)ytterbium; Tris(dipivaloylmethanato)ytterbium(III)