X-Ray Single Crystal Refinement and Superconductivity of La3Ni2B2N3

Crystalline samples of La3Ni2B2N3 were synthesized using solid state metathesis reactions from combinations of La, LaCl3, NiCl2 together with Li3BN2. The structure was determined by single crystal X‐ray diffraction (I4/mmm (No. 139), a = 372.95(2) pm, c = 2056.3(2) pm, R1 = 0.027, wR2 = 0.062) and c...

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Published inZeitschrift für anorganische und allgemeine Chemie (1950) Vol. 629; no. 1; pp. 129 - 132
Main Authors Blaschkowski, Björn, Meyer, H.-Jürgen
Format Journal Article
LanguageEnglish
Published Weinheim WILEY-VCH Verlag 01.01.2003
WILEY‐VCH Verlag
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Summary:Crystalline samples of La3Ni2B2N3 were synthesized using solid state metathesis reactions from combinations of La, LaCl3, NiCl2 together with Li3BN2. The structure was determined by single crystal X‐ray diffraction (I4/mmm (No. 139), a = 372.95(2) pm, c = 2056.3(2) pm, R1 = 0.027, wR2 = 0.062) and confirmed earlier results from neutron powder diffraction. La3Ni2B2N3 contains BN units capping square planar Ni layers. Isolated nitrogen atoms reside in La6 octahedra. Magnetic measurements on several bulk samples exhibit superconductivity at temperatures below 14.6 K. Einkristall‐Röntgenstrukturanalyse und Supraleitung von La3Ni2B2N3 Kristalline Proben von La3Ni2B2N3 wurden durch Festkörper‐Metathese‐Reaktionen aus Kombinationen von La, LaCl3, NiCl2 zusammen mit Li3BN2 erhalten. Die durchgeführte Einkristall‐Röntgenstrukturuntersuchung (I4/mmm (No. 139), a = 372.95(2) pm, c = 2056.3(2) pm, R1 = 0.027, wR2 = 0.062) bestätigt eine frühere Pulver‐Neutronenbeugungsuntersuchung. La3Ni2B2N3 enthält BN‐Einheiten, welche quadratisch‐planare Ni‐Schichten überdachen sowie isolierte N‐Atome in La6‐Oktaedern. Magnetische Messungen an verschiedenen Proben zeigen supraleitendes Verhalten unterhalb 14.6 K.
Bibliography:ark:/67375/WNG-24SM2NTT-W
ArticleID:ZAAC200390004
istex:C3F248C7B2C8E3DC901963878F7833F3BEF5110E
ISSN:0044-2313
1521-3749
DOI:10.1002/zaac.200390004