Metal atom reactions with fluorocarbons. I. Nonsolvated fluoroorganic zinc compounds

1972 ◽  
Vol 94 (3) ◽  
pp. 999-1000 ◽  
Author(s):  
Kenneth J. Klabunde ◽  
M. Scott Key ◽  
J. Y. F. Low
Keyword(s):  
Metal Atom ◽  
Zinc Compounds ◽  
Metal Atom Reactions

Metal atom reactions with fluorocarbons. 9. Preparation and spectral analyses of (perfluoroalkyl)- and (perfluoroaryl)palladium halides

1980 ◽  
Vol 19 (12) ◽  
pp. 3719-3724 ◽  
Author(s):  
Kenneth J. Klabunde ◽  
Bruce B. Anderson ◽  
Kent Neuenschwander
Keyword(s):  
Metal Atom ◽  
Spectral Analyses ◽  
Metal Atom Reactions

Ternary Rare Earth Transition Metal Zinc Compounds RT2Zn20 with T = Fe, Ru, Co, Rh, and Ni

1997 ◽  
Vol 52 (9) ◽  
pp. 1023-1030 ◽  
Author(s):  
Tono Nasch ◽  
Wolfgang Jeitschko ◽  
Ute Ch. Rodewald
Keyword(s):  
Rare Earth ◽  
Transition Metal ◽  
Metal Atom ◽  
Transition Metal Atom ◽  
Hexagonal Prism ◽  
Rare Earth Atom ◽  
Zinc Compounds ◽  
A Site ◽  
Cold Pressed ◽  
Zinc Site

Forty eight new compounds RT2Zn20 were prepared by annealing cold-pressed pellets of the elemental components in an argon atmosphere. They crystallize with the cubic CeCr2Al20 type structure (Fd3̅̅m , Z = 8), which was refined from single-crystal diffractometer data of TbFeiZn20 (a = 1411.1(1) pm ), YRu2Zn20 (a = 1422.6(1) pm ), DyRu2Zn20 (a = 1422.1(1) pm), GdCo2Zn20 (a = 1406.0(1) pm ), DyRh2Zn20 (a = 1418.2(1) pm ), and TmNi2Zn20 (a= 1401.6(1) pm) to conventional residuals varying betw een R = 0.011 and R - 0.024. The com pounds have a tendency for tw inning, thus m im icking hexagonal sym metry, with the cubic [111] axis as the axis w ith the pseudohexagonal symmetry. M inor inconsistencies in the cell volum es of these com pounds indicate slight deviations from the ideal com position. N evertheless, the five atom ic sites of this structure w ere found to be fully occupied w ithin the error lim its w ith the exception of one zinc site of TmNi2Zn20. The coordination for the site of the rare earth atom s is a Frank-K asper polyhedron with coordination num ber (CN) 16. The transition metal atom s occupy a site w ith icosahedral zinc coordination (CN 12). Two of the three zinc sites are in pentagonal prism atic coordination of zinc atom s, capped by rare earth and/or transition metal atom s (CN 12), w hile the third zinc site has 12 zinc neighbors form ing a hexagonal prism , w hich is capped by tw o rare earth atom s (CN 14).

Metal atom reactions of cobalt with cyclopentadiene and alkynes: synthesis of structurally novel organometallic complexes

1980 ◽  
Vol 19 (5) ◽  
pp. 1132-1141 ◽  
Author(s):  
Michael B. Freeman ◽  
Laurence W. Hall ◽  
Larry G. Sneddon
Keyword(s):  
Metal Atom ◽  
Organometallic Complexes ◽  
Metal Atom Reactions
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