A Fully Characterized Complex Ion with Unreduced TCNQ as Fourfold Bridging Ligand: [(μ4 -TCNQ){fac-Re(CO)3 (bpy)}4 ]4+

Heiko Hartmann; Wolfgang Kaim; Ingo Hartenbach; Thomas Schleid; Matthias Wanner; Jan Fiedler

doi:10.1002/1521-3773(20010803)40:15<2842::AID-ANIE2842>3.0.CO;2-R

A Fully Characterized Complex Ion with Unreduced TCNQ as Fourfold Bridging Ligand: [(μ₄ -TCNQ){fac-Re(CO)₃ (bpy)}₄ ]⁴⁺

Angew Chem Int Ed Engl. 2001 Aug 3;40(15):2842-2844. doi: 10.1002/1521-3773(20010803)40:15<2842::AID-ANIE2842>3.0.CO;2-R.

Authors

Heiko Hartmann¹, Wolfgang Kaim¹, Ingo Hartenbach¹, Thomas Schleid¹, Matthias Wanner¹, Jan Fiedler²

Affiliations

¹ Institut für Anorganische Chemie Universität Stuttgart Pfaffenwaldring 55, 70550 Stuttgart (Germany) Fax: (+49) 711-685-4165.
² J. Heyrovsky Institute of Physical Chemistry Academy of Sciences of the Czech Republic Dolejškova 3, 18223 Prague (Czech Republic).

PMID: 29711978
DOI: 10.1002/1521-3773(20010803)40:15<2842::AID-ANIE2842>3.0.CO;2-R

Abstract

Innocent behavior of a typical non-innocent ligand has been observed for the first structurally characterized discrete metal complex with tetranucleating TCNQ. The coordination of four [Re(CO)₃ (bpy)]⁺ units (see picture: C: black, N: green, O: blue, Re: red) facilitates the reduction of the already excellent π-acceptor molecule TCNQ by a further 0.74 V! TCNQ=7,7,8,8-tetracyano-p-quinodimethane, bpy=2,2'-bipyridine.

Keywords: N ligands; electrochemistry; rhenium; tetranuclear complexes.