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A New High‐Pressure Phase of Barium Disilicide
Author(s) -
Evers Jügen,
Oehlinger Gilbert,
Weiss Armin
Publication year - 1978
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.197805381
Subject(s) - barium , tetrahedron , high pressure , materials science , phase (matter) , crystallography , silicon , metallurgy , chemistry , thermodynamics , physics , organic chemistry
A three‐dimensional network made up of three‐coordinate Si atoms is present in a new cubic high‐pressure phase of BaSi 2 . On treatment at high pressure and high temperature, the isolated Si 4 tetrahedra of the normal‐pressure phase can polymerize not only to the known puckered Si layers but also to the regular three‐dimensional structure (1) .
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