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Tuning the Properties of Copper(II) Complexes with Tetra- and Pentadentate Bispidine (=3,7-Diazabicyclo[3.3.1]nonane) Ligands

✍ Scribed by Peter Comba; Carlos Lopez de Laorden; Hans Pritzkow

Publisher
John Wiley and Sons
Year
2005
Tongue
German
Weight
297 KB
Volume
88
Category
Article
ISSN
0018-019X

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✦ Synopsis

Abstract

The synthesis of a series of tetra‐ and pentadentate bispidine‐type ligands (bispidine=3,7‐diazabicyclo[3.3.1]nonane) – tetradentate ligands are donor‐substituted at C(2) and C(4), pentadentate ligands have an additional donor at N(3) or N(7), with pyridine, 2‐methylpyridine, or quinoline donor moieties – and of their Cu^II^ complexes are reported, together with single‐crystal structural analyses and solution studies (electrochemistry, electronic and EPR spectroscopy). Depending on the ligand geometry and on the co‐ligands (solvent or counter anion), there are various structural forms (pseudo‐Jahn–Teller elongation along all three molecular axes), and the structural data are correlated with the spectroscopic and electrochemical parameters.

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