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- Title
Expanded Ligands Based upon Iron(II) Coordination Compounds of Asymmetrical Bis(terpyridine) Domains.
- Authors
Rocco, Dalila; Prescimone, Alessandro; Housecroft, Catherine E.; Constable, Edwin C.
- Abstract
The synthesis and characterization of two tritopic ligands containing a 2,2′:6′,2″-terpyridine (tpy) metal binding domain and either a 3,2′:6′,3″- or a 4,2′:6′,4″-tpy domain are detailed. The synthetic routes to these ligands involved the [Pd(dppf)Cl2]-catalyzed coupling of a boronic ester-functionalized 2,2′:6′,2″-tpy with bromo-derivatives of 3,2′:6′,3″-tpy or 4,2′:6′,4″-tpy. The 2,2′:6′,2″-tpy domains of the tritopic ligands preferentially bind Fe2+ in reactions with iron(II) salts leading to the formation of two homoleptic iron(II) complexes containing two peripheral 3,2′:6′,3″-tpy or 4,2′:6′,4″-tpy metal-binding sites, respectively. These iron(II) complexes are potentially tetratopic ligands and represent expanded versions of tetra(pyridin-4-yl)pyrazine.
- Subjects
COORDINATION compounds; IRON compounds; LIGANDS (Biochemistry); IRON; PYRAZINES; METALS
- Publication
Molecules, 2023, Vol 28, Issue 1, p82
- ISSN
1420-3049
- Publication type
Article
- DOI
10.3390/molecules28010082