Tetrathiafulvalene-functionalized phosphine as a coordinating ligand. X-Ray structures of (PPh2)4TTF and [(AuCl)4{(PPh2)4TTF}]

Abstract

n (M = Ag, 9; Au, 10) when 1:1 molar ratios are used instead. Visible-ultraviolet and electrochemical studies of the new complexes are reported. Two, reversible one-electron oxidations to the mono-and di-cation occur in complexes 2-10 at more positive potentials than the two reversible oxidations exhibited by the free P4 (1) ligand. The structures of 1 and 2 have been confirmed by X-ray analysis.

Tetrathiafulvalene-based group XV ligands: Synthesis, coordination chemistry and radical cation salts

“…A view of Au1, showing the aurophilic Au· · ·Au interaction (dotted line)[141].Scheme 63. Zn porphyrins complexes incorporating a TTF moiety.…”

Dinuclear copper(II) complex with tetrathiafulvalene-based bis-acetylacetonate ligands

“…Among them, the pyridine and phosphine functionalized TTF derivatives are the good established series and being engaged in transition metal complexes [6][7][8]. The acetylacetonate (acac) groups are well known to form stable metal complexes.…”

“…In particular, designed mono-or polydentate ligands with redox-active tetrathiafulvalene (TTF) core are especially attractive [3][4][5]. Among them, the pyridine and phosphine functionalized TTF derivatives are the good established series and being engaged in transition metal complexes [6][7][8]. The acetylacetonate (acac) groups are well known to form stable metal complexes.…”

Chelating ability of a conjugated redox active tetrathiafulvalenyl-acetylacetonate ligand

“…A novel trend towards such materials is to prepare hybrid TTF precursors where a coordinating group can be used as cement between the organic and inorganic moieties [2][3][4][5][6][7][8][9][10][11][12]. Depending on the metal, its number of free coordination sites, and the number of coordination functions on the TTF, modulation of the molecular architecture and the properties thereof can be envisioned.…”

“…The straightforward strategy consists of substituting the TTF core with one or more coordination functionalities and to use this building block as an electroactive ligand with various metal ions. Within this frame, the use of dithiolates [2] and phosphines [3][4][5][6] as well as pyridine [7][8][9][10] and related ligands have received a great deal of attention as compared to b-diketonate ligands, which offer quite a unique chelating ability with a large variety of metal centers [13]. Along these lines, we recently described the synthesis of TTF 1 substituted by a thioacetylacetone function (TTFSacacH) and demonstrated the chelating ability of its acetylacetonate ions (TTFSacac) towards metal (II) centers (M = Ni and Zn) [11,14].…”