摘要
采用中和转化法制备锑白 (Sb2 O3) ,并用 XRD,IR和 SEM等方法分析测试了产物结构形貌 .从结晶化学角度 ,结合负离子配位多面体生长基元理论探讨了酒石酸根离子对锑白结构形貌的控制规律 .认为酒石酸根离子的强配位能力使溶液中生长基元由 Sb O3E配位四面体转化为 Sb O3+3E星状配位体是立方晶型锑白形成的主要原因 .
This paper describes the influence of tartrate ions on the crystal growth and morphology of antimony white(Sb_2O_3), which was characterized by XRD, IR and SEM. The relationship between the orientation of tartrate ions and the morphology of Sb_2O_3 was studied from the standpoint of crystal chemistry, and the formation mechanism of Sb_2O_3 with different morphologies was analyzed according to the theoretical model of the growth units with coordinative polyhedron structure of anion. It revealed that the products transformed from the orthombic Sb_2O_3 to the cubic Sb_2O_3 due to the molecular recognition of tartrate anion with a strong coordination ability, which changed the original growth unit of SbO_3E coordinative tetrahedron into the growth unit of SbO_ 3+3E stellar quadrangle.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2000年第9期1344-1347,共4页
Chemical Journal of Chinese Universities
基金
国家自然科学基金!(批准号 :59774 0 18)资助
关键词
锑白
模板作用
酒石酸根
结构
超细粉末
Antimony white(Sb_2O_3)
Template effect
Molecular recoginition
Anion coordinative polyhedron
Growth unit
