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Synthesis and Structure of Tetra‐ and Octanuclear Chelate Complexes—Exohedral Guest Exchange in Tetrahemispheraplexes
Author(s) -
Saalfrank Rolf W.,
Burak Roman,
Reihs Stefan,
Löw Norbert,
Hampel Frank,
Stachel HansDietrich,
Lentmaier Jochen,
Peters Karl,
Peters EvaMaria,
von Schnering Hans Georg
Publication year - 1995
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199509931
Subject(s) - tetra , chelation , ammonium , chemistry , metal , metal ions in aqueous solution , ion , ion exchange , primary (astronomy) , medicinal chemistry , stereochemistry , inorganic chemistry , organic chemistry , physics , astronomy
Almost the same ligands—completely different metal chelates! Compound 1 , R = CO 2 Me, yields the Mg complex 2 (○ = Mg 2+ , • = NH 4 + ) with exohedrally bound ammonium ions by self‐organization; however, 1 , R = H, affords the octanuclear Cd complex 3 (○, • = Cd 2+ ). The ammonium ions in 2 can be fully exchanged for primary amines.