title: Heterometallic chalcogenido clusters containing lanthanides and main group metals: emissive precursors to ternary solid-state compounds.
abstract: Heterometallic clusters containing lanthanides and the group 12 metals can be isolated as crystalline compounds in high yields. These products [(py)8Ln4M2Se6(SePh)4 (Ln = Er, Yb, Lu; M = Cd, Hg)] adopt a double cubane structure with the covalent M occupying an opposing pair of external metal sites. Both Er/M compounds are strongly emissive materials, with emission lifetimes of 1.41 ms (Er/Cd) and 0.71 ms (Er/Hg) and with the Er/Cd radiative quantum efficiency twice that of the Er/Hg compound. Thermal decomposition of the Er/Cd and Yb/Cd compounds at 650 degrees C give the ternary solid-state materials CdLn2Se4.
authors.affiliation: Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, USA.
authors.forename: Anna
authors.initials: A
authors.lastname: Kornienko
authors.forename: Santanu
authors.initials: S
authors.lastname: Banerjee
authors.forename: G Ajith
authors.initials: GA
authors.lastname: Kumar
authors.forename: Richard E
authors.initials: RE
authors.lastname: Riman
authors.forename: Thomas J
authors.initials: TJ
authors.lastname: Emge
authors.forename: John G
authors.initials: JG
authors.lastname: Brennan
mesh_terms: D018360:Crystallography, X-Ray; D028581:Lanthanoid Series Elements / Q000737:chemistry*; D019216:Metals, Heavy / Q000737:chemistry*; D008958:Models, Molecular; D009942:Organometallic Compounds / Q000138:chemical synthesis / Q000737:chemistry*; D013816:Thermodynamics
chemical_list: D028581:Lanthanoid Series Elements; D019216:Metals, Heavy; D009942:Organometallic Compounds