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Synthesis, structure, and bonding of Lu7Z2Te2 (Z = Ni, Pd, Ru). Linking typical tricapped trigonal prisms in metal-rich compounds.
MedLine Citation:
PMID:  15154798     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
The syntheses and structures of and bonding in the title compounds are described and compared with those for the isostructural orthorhombic Er(7)Ni(2)Te(2) (Imm2) and other related phases. Single-crystal data are reported for Z = Ni, Pd. The condensation of tricapped trigonal prisms (TTP) into sheets and the bridging of these by separate Lu atoms into a 3D structure are described. The interlayer separation, the Lu-Lu bonding achieved, and the polar Lu-Te bonding therewith are all affected by the size and valence energies of Te. The two Te spacers also exist in capped centered Lu(6)Te trigonal prisms. In terms of extended Hückel band analyses, the overall bonding for both Lu-Ni and Lu-Te are optimized energetically, but not for Lu-Lu. The average Lu-Lu overlap populations about each Lu appropriately increase with a decrease in the number of its Te neighbors.
Authors:
Ling Chen; John D Corbett
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Inorganic chemistry     Volume:  43     ISSN:  0020-1669     ISO Abbreviation:  Inorg Chem     Publication Date:  2004 May 
Date Detail:
Created Date:  2004-05-24     Completed Date:  2004-07-29     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0366543     Medline TA:  Inorg Chem     Country:  United States    
Other Details:
Languages:  eng     Pagination:  3371-6     Citation Subset:  -    
Affiliation:
Department of Chemistry, Iowa State University, Ames, IA 50011, USA.
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