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A Manganese(II) Coordination Polymer with Ditopic Bis(pyrazol‐1‐yl)borate Bridges
Author(s) -
Morawitz Thorsten,
Bolte Michael,
Lerner HansWolfram,
Wagner Matthias
Publication year - 2008
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.200800107
Subject(s) - chemistry , moiety , ligand (biochemistry) , manganese , medicinal chemistry , chelation , boron , chloride , coordination polymer , ion , derivative (finance) , hydrolysis , stereochemistry , inorganic chemistry , organic chemistry , receptor , biochemistry , financial economics , economics
Abstract The synthesis and characterization of the ditopic bis(pyrazol‐1‐yl)borate ligand Li 2 [ p ‐C 6 H 4 (B(C 6 F 5 )pz 2 ) 2 ] is reported (pz = pyrazol‐1‐yl). Compared to the corresponding t ‐butyl derivative Li 2 [ p ‐C 6 H 4 (B( t ‐Bu)pz 2 ) 2 ], the C 6 F 5 ‐substituted scorpionate is significantly more stable towards hydrolysis. Reaction of Li 2 [ p ‐C 6 H 4 (B(C 6 F 5 )pz 2 ) 2 ] with two equivalents of MnCl 2 leads to the formation of coordination polymers {(MnCl 2 ) 2 (Li(THF) 3 ) 2 [ p ‐C 6 H 4 (B(C 6 F 5 )pz 2 ) 2 ]} ∞ featuring penta‐coordinate Mn II ions chelated by one bis(pyrazol‐1‐yl)borate fragment and further bonded to three chloride ions. Two of the three chloride ions are also coordinated to a neighbouring Mn II ion; the third chloro ligand is shared between the Mn II centre and a Li(THF) 3 moiety.