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(C 4 C 1 Im) 6 [Hg 7 Se 10 ]: The Salt of a Molecular Selenido Mercurate Anion Obtained from Ionic Liquids
Author(s) -
Donsbach Carsten,
Dehnen Stefanie
Publication year - 2018
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.201800277
Subject(s) - ionic liquid , ternary operation , salt (chemistry) , ion , chemistry , substructure , crystallography , ionic bonding , crystal structure , spectroscopy , analytical chemistry (journal) , chromatography , organic chemistry , catalysis , physics , structural engineering , quantum mechanics , computer science , engineering , programming language
A binary selenido mercurate anion exhibiting a novel metalate topology was obtained as its salt (C 4 C 1 Im) 6 [Hg 7 Se 10 ] ( 1 ) upon treatment of the ternary selenido mercurate K 2 [Hg 2 Se 3 ] in the ionic liquid (C 4 C 1 Im)[BF 4 ] (C 4 C 1 Im = 1‐butyl‐3‐methylimidazolium) in the presence of small amounts of 1,2‐diaminoethane (en) at slightly elevated temperatures (80 °C). The three‐dimensionally extended anionic substructure was disassembled this way with formation of the unprecedented heptanuclear anion [Hg 7 Se 10 ] 6– . The light yellow crystals of 1 are extremely sensitive to air and moisture. The structure of 1 was determined by single‐crystal X‐ray diffraction, and its heavy element composition was analyzed and confirmed by micro X‐ray fluorescence spectroscopy (μ‐XFS).