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Issue 13, 2019
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Synthesis, characterisation and redox properties of anti-bimetallic permethylpentalene complexes

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Abstract

We report a series of anti-bimetallic transition metal complexes based on the permethylpentanyl (Pn*, C8Me6) ligand: anti-(MCpR5)2Pn* (where M = Fe, Co and Ni and R = H or Me). Compounds (FeCp*)2Pn* (1), (CoCp*)2Pn* (2), (NiCp*)2Pn* (3), (CoCp)2Pn* (4) and (NiCp)2Pn* (5) were fully characterised by NMR spectroscopy, X-ray crystallography, DFT calculations and cyclic voltammetry. All anti-(MCpR5)Pn* structures have diamagnetic ground states. 1, 2 and 4 have isolated non-degenerate ground states with closed shell configurations. A study of the magnetic properties of the dinickel complexes 3 and 5 reveal Boltzmann population of a Curie triplet state in the solution. Cyclic voltammetry reveals multiple reversible or quasi-reversible redox couples for all the dinuclear complexes.

Graphical abstract: Synthesis, characterisation and redox properties of anti-bimetallic permethylpentalene complexes

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Supplementary files

Article information


Submitted
21 Dec 2018
Accepted
26 Feb 2019
First published
27 Feb 2019

Dalton Trans., 2019,48, 4263-4273
Article type
Paper

Synthesis, characterisation and redox properties of anti-bimetallic permethylpentalene complexes

S. C. Binding, J. C. Green, Z. R. Turner, J. Buffet and D. O'Hare, Dalton Trans., 2019, 48, 4263
DOI: 10.1039/C8DT05054F

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