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Supramolecular Architecture and a New Mode of Pyrazolate Coordination ( η 3 ) in the First Homoleptic Lanthanide Pyrazolate Complexes
Author(s) -
Deacon Glen B.,
Delbridge Ewan E.,
Forsyth Craig M.
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19990614)38:12<1766::aid-anie1766>3.0.co;2-i
Subject(s) - homoleptic , lanthanide , toluene , chemistry , supramolecular chemistry , salt (chemistry) , molecule , solvent , ion , potassium , inorganic chemistry , calixarene , crystallography , metal , organic chemistry
Abstract A linear supramoleculecular array of anions and cations is present in the solvent‐free potassium salt of the homoleptic erbium pyrazolate complex [K{Er( η 2 ‐ t Bu 2 pz) 4 } n ] ( 1 ). Treatment of 1 with [18]crown‐6 in toluene/dimethoxyethane leads to formation of a charge‐separated salt [Eq. (a)] in which the methyl group of a toluene molecule interacts with the potassium ion. t Bu 2 pz=3,5‐di‐ tert ‐butylpyrazolate.