Premium
Synthesis, Characterization, and Symmetry Relations of the Crystal Structures of Some Bis(dioxane) Adducts of Group 1 / Group 13 Heterometallic Trifluoroacetates
Author(s) -
Czajkowski Daniel,
Simon Ilka,
Frank Walter
Publication year - 2019
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.201800470
Subject(s) - orthorhombic crystal system , alkali metal , chemistry , crystallography , adduct , group (periodic table) , crystal structure , intermolecular force , main group element , ion , hydrogen bond , inorganic chemistry , metal , supergroup , carboxylate , stereochemistry , molecule , catalysis , organic chemistry , transition metal , geochemistry , geology
Four bis(dioxane) adducts of mixed‐metal trifluoroacetates, M [ M ′(O 2 CCF 3 ) 4 (C 4 H 8 O 2 ) 2 ] ( M = Na, K, Cs, M ′ = In and M = Cs, M ′ = Ga) were synthesized by reaction of alkali metal trifluoroacetate and group 13 element trifluoroacetate in 1,4‐dioxane and completely characterized including X‐ray structure determination. Geometric parameters, empirical bond valences and frequencies of the symmetric C=O stretching vibrations show that the moisture sensitive solids are composed of dimeric structural moieties with site symmetry 1 , containing alkali metal ions and bis(dioxane)tetrakis(trifluoroacetato)indate or ‐gallate ions. The dimeric units are further connected by weaker “intermolecular” dioxane interactions to neighboring alkali metal ions. Closer inspection of space group symmetry, unit cell parameters and atom sites allows to rationalize the compounds as members of two isotypic pairs that are further closely related due to the group‐subgroup relation of their monoclinc space groups to a common orthorhombic supergroup.