New ternary intermetallicCe4Pt9Al13тезисы доклада

Дата последнего поиска статьи во внешних источниках: 11 апреля 2017 г.

Работа с тезисами доклада


[1] New ternary intermetallicce4pt9al13 / Y. Morozova, E. Murashova, S. Dunaev et al. // SCTE - 2016, 20th International Conference on Solid Compounds of Transition Elements - Book of abstract. — Zaragoza, Spain, 2016. — P. 269–269. A novel ternary intermetallic compound Ce4Pt9Al13 was synthesized by arc-melting under argon from pure elemental components and then annealed in an evacuated quartz ampoule at 700 oC for 30 days. Its crystal structure was established via single-crystal X-ray diffraction with a Nonius Kappa CCD diffractometer (MoK¬ radiation ). Ce4Pt9Al13 crystallizes in the orthorhombic structure (space group Pmmn, unit cell parameters: a = 4.1826(1) Å, b = 11.4424(3) Å, c = 19.8475(5) Å). Powder X-ray diffraction data (STOE STADI P diffractometer, Cu Kα1 radiation) of Ce4Pt9Al13 are in a good agreement with the diffraction pattern calculated from X-ray single crystal data. The compound belongs to a new structure type and presents a site exchange variant of the Ho4Ir13Ge9 type [1]. Pt and Al atoms form a three-dimensional framework with Pt-Al distances from 2.467 to 2.622 Å. Cerium atoms occupy large voids of the framework with distances to the nearest atoms of more than 3.19 Å.

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