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Synthesis and Crystal Structure of Rubidium Lanthanum Tetraacetate, RbLa(CH 3 COO) 4
Author(s) -
Meyer Gerd,
Kutlu Ibrahim
Publication year - 2000
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/(sici)1521-3749(200004)626:4<975::aid-zaac975>3.0.co;2-7
Subject(s) - orthorhombic crystal system , chemistry , rubidium , crystallography , crystal structure , anhydrous , stereochemistry , single crystal , potassium , organic chemistry
The anhydrous rubidium tetraacetato lanthanate, RbLa(CH 3 COO) 4 , is obtained together with Rb 2 La(CH 3 COO) 5 (H 2 O) as colourless single crystals from a 1 : 2 mixture of Rb 2 CO 3 and La(CH 3 COO) · 1.5 H 2 O in acetic acid by slow evaporation. The crystal structure [orthorhombic, Pnnm, Z = 2, a = 1242.0(3), b = 1650.1(4), c = 698.0(4) pm, R = 0.028, R w = 0.071] contains La 3+ nine coordinate by oxygen atoms of six acetate ligands. The polyhedra are connected to dimers and further to double chains running parallel to [001]. These [La(CH 3 COO) 4 ] – double chains are surrounded by four like double chains and connected by Rb + ions that are seven coordinate by oxygen atoms.