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

页码：537 / 541

页数：5

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