Jump to main content
Jump to site search

Issue 14, 2017
Previous Article Next Article

Metal-containing polymers bearing pendant nickel(II) complexes of Goedken's macrocycle

Author affiliations

Abstract

The design, synthesis, and polymerization of a norbornene-based monomer bearing a nickel(II) complex of Goedken's macrocycle (endo-13) and the characterization of the resulting polymer (14) are described. Detailed studies of the ring-opening metathesis polymerization of endo-13 using the 3-bromopyridine adduct of Grubbs’ 3rd generation catalyst revealed that the polymerization shares many characteristics associated with a living polymer, but deviated from ideal behavior when high degrees of polymerization were targeted. The installation of a 3-hexylphenyl substituent at the macrocyclic backbone allowed for the realization of soluble polymers and shut down an oxidative dimerization pathway commonly associated with metal complexes of Goedken's macrocycle. The cyclic voltammogram of the polymer 14 was comprised of two one-electron oxidation waves (0.21 V and 0.70 V relative to ferrocene/ferrocenium) associated with the stepwise oxidation of the macrocyclic ligand backbone and a one electron reduction wave associated with the reduction of nickel(II) to nickel(I) (−2.07 V). Solution and solid-state UV-vis absorption spectra recorded for polymer 14 revealed a strong π → π* absorption (λmax = 390 nm) and a ligand-to-metal charge transfer band (λmax = 590 nm) typical of nickel(II) complexes of Goedken's macrocycle, and confirmed the absence of macrocycle–macrocycle interactions. This work has ultimately led to the development of a controlled polymerization route to a rare example of a side-chain nickel-containing polymer with potentially useful properties.

Graphical abstract: Metal-containing polymers bearing pendant nickel(ii) complexes of Goedken's macrocycle

Back to tab navigation

Supplementary files

Publication details

The article was received on 16 Feb 2017, accepted on 13 Mar 2017 and first published on 17 Mar 2017


Article type: Paper
DOI: 10.1039/C7PY00259A
Citation: Polym. Chem., 2017,8, 2164-2172
  •   Request permissions

    Metal-containing polymers bearing pendant nickel(II) complexes of Goedken's macrocycle

    J. A. Paquette, A. Rabiee Kenaree and J. B. Gilroy, Polym. Chem., 2017, 8, 2164
    DOI: 10.1039/C7PY00259A

Search articles by author

Spotlight

Advertisements