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LiSr 2 [TaN 3 ]F – a Single Chain Nitridotantalate
Author(s) -
Pust Philipp,
Schnick Wolfgang
Publication year - 2011
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201100207
Subject(s) - ampoule , lattice energy , tantalum , strontium , crystallography , single crystal , maple , crystal structure , lithium (medication) , materials science , metal , chemistry , organic chemistry , medicine , botany , endocrinology , metallurgy , biology
The chain type nitridotantalate LiSr 2 [TaN 3 ]F was synthesized by reaction of strontium with AlF 3 , Eu(NH 2 ) 2 , LiN 3 and lithium metal as fluxing agent in weld shut tantalum ampoules. Single crystals were obtained as byproduct from reaction with the ampoule material. The crystal structure ( Pbca (no. 61), a = 10.768(2), b = 5.5913(11), c = 15.891(3) Å, Z = 8) was solved on the basis of single‐crystal X‐ray diffraction data. LiSr 2 [TaN 3 ]F contains infinite chains of vertex sharing TaN 4 tetrahedra running along [010]. The structure can be understood as an intercalation of Li + and F – into Sr 2 TaN 3 . Lattice energy calculations (MAPLE) and EDX measurements confirmed the electrostatic bonding interactions and the chemical composition.