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  Large CoAPO-5 single crystals: Microwave synthesis and anisotropic optical absorption

Girnus, I., Hoffmann, K., Marlow, F., Caro, J., & Döring, G. (1994). Large CoAPO-5 single crystals: Microwave synthesis and anisotropic optical absorption. Microporous and Mesoporous Materials, 2(6), 543-555. doi:10.1016/0927-6513(93)E0066-P.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-2449-1 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-0024-244A-0
Genre: Journal Article

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 Creators:
Girnus, Irina1, Author
Hoffmann, Katrin1, Author
Marlow, Frank1, 2, Author              
Caro, Jürgen1, Author
Döring, Günther3, Author
Affiliations:
1Institut für Angewandte Chemie, Rudower Chaussee 5, 12489 Berlin-Adlershof, Germany, ou_persistent22              
2Research Group Marlow, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445612              
3Bundesanstalt für Materiaforschung und -prüfung, Unter den Eichen 44—46, 12203 Berlin-Lichterfelde, Germany, ou_persistent22              

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Free keywords: Microwave synthesis; CoAPO-5; Anisotropic optical absorption; AFI molecular sieve; Ultraviolet—visible single-crystal spectrum
 Abstract: 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.

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Language(s): eng - English
 Dates: 2001-11-021994-07
 Publication Status: Published in print
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: DOI: 10.1016/0927-6513(93)E0066-P
 Degree: -

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Title: Microporous and Mesoporous Materials
Source Genre: Journal
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Publ. Info: Amsterdam : Elsevier
Pages: - Volume / Issue: 2 (6) Sequence Number: - Start / End Page: 543 - 555 Identifier: ISSN: 1387-1811
CoNE: /journals/resource/954926228401