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Transition Metal in a Cube—A Discrete Eight‐Coordinate [Mn 2+ ⊂ [2.2.2]cryptand] as a Body Centered Cube with an N 2 O 6 Donor Set
Author(s) -
Hagen Karl S.
Publication year - 1992
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.199207641
Subject(s) - dication , cryptand , cube (algebra) , crystallography , polyhedron , ligand (biochemistry) , manganese , chemistry , transition metal , metal , combinatorics , ion , physics , mathematics , biochemistry , receptor , organic chemistry , catalysis
An eight‐coordinate manganese( II ) ion is found in dication 1 , the first complex between the [2.2.2]cryptand and a transition metal. The O ‐ and N ‐donor centers take up positions at the corners of an almost perfect cube. The formation of this extremely rare coordination polyhedron for Mn II can be attributed to the high structural flexibility of the ligand, which enables it to adjust to very different metal cations.