Premium
Synthesis and Structural Characterization of 1,2‐Benzenedisulfonate Complexes of the Heavy Group 2 Elements
Author(s) -
Deacon Glen B.,
Forsyth Craig M.,
Greenhill Neil B.,
Harika Rita,
Junk Peter C.,
Skelton Brian W.,
White Allan H.
Publication year - 2009
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.200900048
Subject(s) - strontium , barium , chemistry , aqueous solution , barium chloride , potassium , crystal structure , metal , strontium chloride , inorganic chemistry , chloride , calcium , crystallography , alkaline earth metal , alkali metal , organic chemistry
Reaction of the commercially available potassium 1,2‐benzenedisulfonate (K 2 L) with calcium chloride, strontium nitrate, and barium chloride in aqueous solution yielded [Ca 2 L 2 (H 2 O) 4 ], [Sr 4 L 4 (H 2 O) 8 ] · 1.5H 2 O and [Ba 2 L 2 (H 2 O) 5 ] · H 2 O in a form suitable for single‐crystal X‐ray determination. From one preparation of the calcium complex a few crystals of [K 2 CaL 2 (H 2 O) 3 ] · 0.5H 2 O were obtained but were not representative of the bulk product. From reaction of CaCO 3 with H 2 L and recrystallization from aqueous ethanol, crystals of [Ca 2 L 2 (H 2 O) 6 ] · EtOH deposited. All complexes are coordination polymers with metal atoms being bridged and chelated by 1,2‐benzenedisulfonate groups, which show an enormous variety of coordination modes, and coordinated by water molecules, some of which are bridging. Calcium has an eight‐coordinate ion in all compounds, potassium six‐coordinate in the bimetallic complex; the strontium complex has eight‐ and nine‐coordinate strontium atoms and the barium complex nine‐ and eleven‐coordinate barium atoms.