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Conformation Control in Polymetallic Mesocycles by Metal–Metal Bonding: The First Example of an HgCu Interaction
Author(s) -
Bodensieck Ulf,
Braunstein Pierre,
Knorr Michael,
Strampfer Martin,
Bénard Marc,
Strohmann Carsten
Publication year - 1997
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.199727581
Subject(s) - metal , torsion (gastropod) , torsion pendulum clock , crystallography , solid state , ring (chemistry) , chemistry , materials science , metallurgy , physics , organic chemistry , quantum mechanics , medicine , surgery
A ten‐membered heterometallic ring complex with a T‐shaped CuHgFe 2 framework is the result of a bonding CuHg interaction (CuHg 2.668(6) Å). In solution this complex exhibits a motion comparable to a “molecular torsion pendulum” (shown schematically below), which generates an average mirror plane containing the four metal atoms; in the solid state only a C 2 axis is present.