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Persistent URL http://purl.org/net/epubs/work/53393
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Record Id 53393
Title Structural and compositional tuning of layered subnitrides ; new complex nitride halides
Abstract New quaternary bimetallic nitride halides and the first examples of quintinary nitride mixed halides have been synthesised in the phase system Ca - Sr - N - Cl - Br. The variation in structure with composition has been investigated by powder X-ray and powder neutron diffraction techniques. All compounds crystallise in the R-3m space group, with the anti-alpha-NaFeO2 structure. The layered compounds exhibit unprecedented coexistent disorder of both cations and anions in which only nitride solely occupies a discrete crystallographic position. [N(Ca,Sr)2]+ layers alternate with halide ions (Cl, Br)-, which fill the octahedral voids between the positively charged sheets. A dual cationic-anionic substitution approach allows all aspects of the anisotropic structure to be controlled, including the thickness of the ionic layers and the [N(Ca,Sr)2]+ interlayer spacing.
Keywords Chemistry , Engineering
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Language English (EN)
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Journal Article Dalton Trans 39, no. 30 (2010): 7153-7158. doi:10.1039/c0dt00214c 2010