In:
Angewandte Chemie, Wiley, Vol. 130, No. 9 ( 2018-02-23), p. 2433-2436
Abstract:
Highly condensed nitridosilicates doped with Eu 2+ or Ce 3+ play an important role in saving energy by converting the blue light of (In,Ga)N‐LEDs. Although nitridosilicates are known for great structural variety based on covalent anionic Si‐N networks, elemental variety is restricted. Presenting a significant extension of the latter, this work describes a general access to open‐shell transition‐metal nitridosilicates. As a proof‐of‐principle, the first iron nitridosilicate, namely Fe 2 Si 5 N 8 , was prepared by exchanging Ca 2+ in α‐Ca 2 Si 5 N 8 applying a FeCl 2 melt (salt metathesis). The title compound was analyzed by powder X‐ray diffraction, EDX, ICP‐OES, combustion analysis, TG/DSC, Mössbauer spectroscopy and magnetic susceptibility measurements. Furthermore, the structure of α‐Ca 2 Si 5 N 8 was determined at 1073 and 1173 K confirming the anionic network of α‐Ca 2 Si 5 N 8 providing possible migration pathways for the ion‐exchange reaction.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.201713006
Language:
English
Publisher:
Wiley
Publication Date:
2018
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505868-5
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506609-8
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514305-6
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505872-7
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1479266-7
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505867-3
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506259-7
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