Spotlight Collection: Fluorinated ligands

We are delighted to announce our new spotlight collection on Fluorinated ligands. Spotlight Collections are ongoing themed collections highlighting the best past and present work in Dalton Transactions.

This collection focuses on fluorinated ligands and their effects on physical properties and chemical reactivity.

Fluorine embodies reactivity and inertness, both of which are exploited by inorganic chemists. It is the most electronegative element in the periodic table (3.98 on the Pauling scale) and has a remarkably high reduction potential (2.87 V).  The van der Waals and covalent radii of fluorine are quite short (ranked third, only after the first-row elements hydrogen and helium), making it unusually small for its atomic number. The homonuclear bond in F2 is particularly reactive while some heteronuclear bonds involving fluorine are remarkably stable. The combined effects of these features on fluorine-containing molecules are often unmatched by any other element, for example with carbon, where it forms very robust, chemically inert single bonds; the BDE of C-F compared to C-H bonds in CF4 and CH4 are 546.8 and 439.3 kJ/mol, respectively.

Metal complexes of fluorinated ligands in comparison to their non-fluorinated, hydrocarbon counterparts, usually display different properties such as relatively high thermal and oxidative stability, volatility, diminished vibrational modes and shifted spectroscopic features (absorption and emission), as well as unique reactivity profiles. They are also ideal for applications in fluorous-biphase media and supercritical CO2. Additionally, fluorine containing anions such as [BF4], [SbF6], [B(C6F5)4], and [B{3,5-(CF3)2C6H3}4]− are among the weakest donors known. This Spotlight collection brings together contributions by leading researchers on this topic to highlight some of the fascinating developments in fluorinated supporting ligands, C-F inertness, electron-withdrawing effects of fluoro-substituents, the weakly-coordinating nature of fluorinated anions, efforts to functionalize C-F bonds, and species that selectively deliver F, F· and F.

This collection is guest edited by Dalton Transactions Advisory Board member Professor Rasika Dias, The University of Texas at Arlington, USA, and Professor Linda Doerrer, Boston University, USA.

Professor Linda Doerrer

Professor Rasika Dias


See the full collection as it grows on our collection webpage, and check out a selection of articles below:

Oxidation of europium with ammonium perfluorocarboxylates in liquid ammonia: pathways to europium(ii) carboxylates and hexanuclear europium(iii) fluoridocarboxylate complexes (Open Access)

Florian Morsbach, Steffen Klenner, Rainer Pöttgen and Walter Frank*
Dalton Trans., 2022, 51, 4814-4828


Facile preparation of a cobalt diamine diketonate adduct as a potential vapor phase precursor for Co3O4films

Max Klotzsche, Davide Barreca*, Lorenzo Bigiani, Roberta Seraglia,  Alberto Gasparotto, Laura Vanin, Christian Jandl, Alexander Pöthig,  Marco Roverso, Sara Bogialli, Gloria Tabacchi*, Ettore Fois,  Emanuela Callone, Sandra Dirè and Chiara Maccato

Dalton Trans., 2021, 50, 10374-10385

Investigation of the biological and photophysicochemical properties of new non-peripheral fluorinated phthalocyanines

Çetin Çelik, Nazli Farajzadeh, MustafaAkın, Göknur Yaşa Atmaca,  Özgül Sağlam, Neslihan Şaki*, Ali Erdoğmuş* and Makbule Burkut Koçak*

Dalton Trans., 2021, 50, 2736-2745

Iridium complexes of an ortho-trifluoromethylphenyl  substituted PONOP pincer ligand (Open Access)

Ethan W. Poole, Itxaso Bustos, Thomas M. Hood, Jennifer E. Smart and Adrian B. Chaplin*

Dalton Trans., 2023, 52, 1096-1104

From ferrocene to 1,2,3,4,5-pentafluoroferrocene: halogen effect on the properties of metallocene

William Erb*, Nicolas Richy, Jean-Pierre Hurvois*, Paul J. Low* and  Florence Mongin

Dalton Trans., 2021, 50, 16933-16938

Anionic N-heterocyclic carbenes featuring weakly coordinating perfluoroalkylphosphorane moieties








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