NaGe—High‐Pressure Formation of the NaPb‐Type Structure | Zendy

Evers Jürgen | Zendy; Oehlinger Gilbert | Zendy; Sextl Gerhard | Zendy; Weiss Armin | Zendy

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NaGe—High‐Pressure Formation of the NaPb‐Type Structure

Author(s) -

Evers Jürgen,

Oehlinger Gilbert,

Sextl Gerhard,

Weiss Armin

Publication year - 1985

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.198505001

Subject(s) - substructure , type (biology) , tetrahedron , high pressure , chemistry , crystallography , biology , physics , thermodynamics , engineering , structural engineering , ecology

An increase in coordination numbers from 6:6 to 7:7 accompanies the conversion of the normal‐pressure modification of NaGe, the only compound of the NaGe type, into a NaPb‐type modification under pressure. This increase is in turn accompanied by an increase in density of ca. 5%. The Ge substructure, consisting of isolated tetrahedra, remains unaltered. Large changes in electrical properties are to be expected in a modification with 8:8 coordination, which could be obtained at still higher pressures.

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