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Dibariumplatinide: (Ba 2+ ) 2 Pt 2− ⋅2 e − and Its Relation to the Alkaline‐Earth‐Metal Subnitrides
Author(s) -
Karpov Andrey,
Wedig Ulrich,
Dinnebier Robert E.,
Jansen Martin
Publication year - 2005
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.200462055
Subject(s) - tantalum , alkaline earth metal , ion , argon , metal , analytical chemistry (journal) , electron , x ray crystallography , chemistry , materials science , radiochemistry , crystallography , atomic physics , diffraction , physics , nuclear physics , optics , chromatography , organic chemistry
Solitary confinement : Ba 2 Pt (see structure) which contains isolated platinide ions (Pt 2− ) was synthesized from the elements, sealed in tantalum ampoules, at 1223 K in argon. In contrast to the related Cs 2 Pt, the Ba compound contains excess electrons, which are responsible for its metallic behavior. The presence of isolated Pt 2− ions was confirmed by high resolution X‐ray diffraction and by theoretical calculations.