LARGE COAPO-5 SINGLE-CRYSTALS - MICROWAVE SYNTHESIS AND ANISOTROPIC OPTICAL-ABSORPTION

被引：49
|
作者：
GIRNUS, I
HOFFMANN, K
MARLOW, F
CARO, J
DORING, G
机构：
[1] INST ANGEW CHEM, D-12489 BERLIN, GERMANY
[2] BUNDESANSTALT MAT FORSCH & PRUFUNG, D-12203 BERLIN LICHTERFEL, GERMANY
来源：
MICROPOROUS MATERIALS | 1994年 / 2卷 / 06期
关键词：
MICROWAVE SYNTHESIS; COAPO-5; ANISOTROPIC OPTICAL ABSORPTION; AFI MOLECULAR SIEVE; ULTRAVIOLET VISIBLE SINGLE-CRYSTAL SPECTRUM;
D O I：
10.1016/0927-6513(93)E0066-P
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
Large CoAPO-5 crystals were synthesized by microwave heating of a fluoride-containing aluminophosphate gel. By polarization microscopy and polarization-dependent single-crystal ultraviolet-visible (UV-VIS) spectroscopy, the as-synthesized crystals show an optical anisotropy of light absorption. It is proposed that this effect originates from structure-related symmetry distortions of the tetrahedral Co2+ environment in the AFI framework. Consequently, the effect of anisotropic optical absorption can be taken as a proof for the incorporation of cobalt in the AFI framework.
引用
收藏
页码：537 / 541
页数：5
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