Open AccessDETERMINING THE POSITION OF LITHIUM ATOM IN LITHIUM POTASSIUM SULPHATE (C66)
Author(s) -
Gu Yuan-Xin
Publication year - 1983
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.32.1196
Subject(s) - atom (system on chip) , lithium (medication) , extant taxon , steric effects , potassium , position (finance) , lithium atom , crystallography , atomic physics , materials science , ion , physics , chemistry , stereochemistry , quantum mechanics , computer science , medicine , finance , ionization , economics , metallurgy , embedded system , evolutionary biology , biology , endocrinology
The structure of KLiSO4 at room temp erature was determined (C66) in 1925 by Bradley. The position of Li atom at the void on a triad was inferred but not measured. This result is in contradiction with the general theory of chemical bonding, so, recently, Meng and Cao presented a view disagreeing with it.We have redetermined the structure of KLiSO4, in particular the position of Li atom. New result shows that Li atom is located at x=1/3, y=2/3, z=0.1797(16) instead of x=1/3, y=2/3, z=0.3488 as described by Bradley. The former is roughly the same as that predicted by steric considerations in ref. [8]. Four nearest O atoms around Li atom form a tetrahedroid.