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  • Ovchinnikov, AlexanderStockholms universitet,Institutionen för material- och miljökemi (MMK),University of Delaware, United States (author)

Layered Quaternary Germanides-Synthesis and Crystal and Electronic Structures of AELi(2)In(2)Ge(2) (AE = Sr, Ba, Eu)

  • Article/chapterEnglish2019

Publisher, publication year, extent ...

  • 2019-05-29
  • American Chemical Society (ACS),2019
  • printrdacarrier

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  • LIBRIS-ID:oai:DiVA.org:su-171125
  • https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-171125URI
  • https://doi.org/10.1021/acs.inorgchem.9b00588DOI

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  • Language:English
  • Summary in:English

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  • Subject category:ref swepub-contenttype
  • Subject category:art swepub-publicationtype

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  • Three new quaternary germanides with the composition AELi(2)In(2)Ge(2) (AE = Sr, Ba, Eu) have been synthesized and structurally characterized. The layered crystal structure of these phases features homoatomic In-In bonding, but there are no direct Ge-Ge bonds. Such a crystallographic arrangement can be regarded as an ordered quaternary derivative of the CaCu4P2 structure (trigonal syngony, Pearson code hR7). Comprehensive analysis of the structural genealogy suggests relationships with the structures of other layered pnictides and chalcogenides, which are discussed. Partitioning of the available valence electrons and the assignment of the formal charges indicate that the composition of the new germanides is charge-balanced. First-principles calculations and electrical transport measurements indicate poor metallic behavior, resulting from significant hybridization of the electronic states.

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  • Bobev, Svilen (author)
  • Stockholms universitetInstitutionen för material- och miljökemi (MMK) (creator_code:org_t)

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  • In:Inorganic Chemistry: American Chemical Society (ACS)58:12, s. 7895-79040020-16691520-510X

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