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K 2 Cu 5 Te 5 , a Novel Mixed‐Valence Layered Compound with Metallic Properties
Author(s) -
Park Younbong,
Kanatzidis Mercouri G.,
Kannewurf Carl R.,
Degroot Donald C.,
Schindler Jon
Publication year - 1991
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.199113251
Subject(s) - valence (chemistry) , conductor , materials science , metal , enhanced data rates for gsm evolution , crystallography , moisture , sketch , composite material , chemistry , metallurgy , mathematics , organic chemistry , computer science , telecommunications , algorithm
Edge‐sharing rhombic [Cu 2 Te 2 ] units form the building blocks in the corrugated anionic [Cu 5 Te 5 ] n 2n−layers (see the sketch at the right) in mixed‐valent K 2 Cu 5 Te 5 —a metallic conductor of the p type. K 2 Cu 5 Te 5 is formed on treatment of Cu with K 2 Te x (x ≈ 4) at 350°C in vacuum as black crystals and is stable to air and moisture.