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Assembly and Disassembly of a Metastable Bis‐phosphine‐Based Copper(I) Helicate
Author(s) -
Bauer Gernot,
Benkő Zoltán,
Nuss Jürgen,
Nieger Martin,
Gudat Dietrich
Publication year - 2010
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201001414
Subject(s) - phosphine , metastability , monomer , chemistry , solvent , copper , crystallography , stereochemistry , polymer chemistry , polymer , organic chemistry , catalysis
Taking turns : Reaction of an anionic bis‐phosphine with Cu + produces a monomeric complex that crystallizes as a dimeric helicate (see picture). The helicate dissolves again in non‐coordinating solvents, but disassembles upon addition of a donor solvent. The observed behavior implies that the helicate is metastable in solution, and persists only because its disassembly is impeded by a high kinetic barrier.