Crystal Structure of Cu(I)Cu(II)_4O(SeO_3)Cl_5,a New Heterovalent Copper Compound

摘要

Oxygenous compounds of heterovalent copper are of considerable interest because of their extraordinary magnetic properties [1-3].In this paper,we report on the synthesis and crystal structure of Cu(I)Cu(n)_4O(SeO_3)Cl_5,the first copper selenite containing both mono-and divalent copper cations.This compound is classified with copper selenite chlorides,which are interesting for both physics [3-6] and mineralogy [8-10].In addition,Cu(I)Cu(II)_4O(SeO_3)Cl_5 contains so-called "extra"oxygen atoms and,thus,is one of the objects of the crystal chemistry of minerals and inorganic compounds with complexes of oxo-centered tetrahedra,which was developed in [11-13].