Synthesis, characterization and morphotropic transitions in a family of M[(UO2)(CH3COO)3](H2O)n (M=Na, K, Rb, Cs; N=0-1.0) compounds

Результат исследований: Научные публикации в периодических изданияхстатьярецензирование

Аннотация

Experimental investigations of crystallization in a family of uranyl triacetate compounds with Na, K, Rb and Cs were performed. The crystal structures of two novel Cs- and Rb-bearing tri(acetato)uranylates were solved, and the content of H 2O molecules in the crystal structure of K-bearing uranyl triacetate was refined. Synthesized compounds were analyzed using IR spectroscopy and single-crystal X-ray diffraction. Crystal chemical analysis of the M[(UO 2)(CH 3COO) 3](H 2O) n family (M = Na, K, Rb, Cs; n = 0-1.0) reveals the sequence of structural transformations depending on the size of alkali cation resulting in the symmetry reduction from cubic P?2 13 (for Na), through tetragonal I?4 1/a (for K and Rb) to triclinic P?1 space groups (for Cs), which is in accordance with the principle of morphotropism, suggested by Paul von Groth, founder of the Zeitschrift für Krystallographie journal, in 1870.

Язык оригиналаанглийский
Страницы (с-по)95-103
Число страниц9
ЖурналZeitschrift fur Kristallographie - Crystalline Materials
Том235
Номер выпуска3
Ранняя дата в режиме онлайн17 фев 2020
DOI
СостояниеОпубликовано - 1 мар 2020

Предметные области Scopus

  • Материаловедение (все)
  • Физика конденсатов
  • Неорганическая химия

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