Nickel–Thiolate Complex Catalyst Assembled in One Step in Water for Solar H₂ Production

Abstract

We report the use of a simple complex assembled from Ni(II) salt and 2-mecaptoethanol in one step in water as the efficient catalyst in a molecular hydrogen system which can be sensitized by a low-cost xanthene dye, Erythrosin B. An excellent quantum efficiency of 24.5% is attained at 460 nm. This simple system is expected to contribute toward the development of economical and environmentally benign solar hydrogen production systems.

Metal Complexes Supported on Solid Matrices for Visible‐Light‐Driven Molecular Transformations

“…[58] For example, a promising catalyst combined Ni II ions and 2-mercaptoethanol was synthesized by Xu and co-workers. [59] A monomeric [NiL 2 ] complex containing b-mercaptoethylamine and an analogous trinuclear [Ni(NiL 2 ) 2 ] complex have also been reported. [60] It is expected that such Ni II complexes could be efficient hydrogen evolution catalysts in which the amine ligands act as proton donors while the Ni center functions as a hydride donor.…”

Photophysics of BODIPY Dyes as Readily-Designable Photosensitisers in Light-Driven Proton Reduction

“…A plethora of highly active systems based on transition metals containing photosensitizers and water reduction catalysts are known and their photochemical and photophysical behaviour was thoroughly studied [1][2][3]. Recent developments include the implementation of non-noble metal components, or even metal-free compounds into these systems and several groups described the use of classical organic dyes, such as Fluorescein, dyes, such as Fluorescein, porphyrins, or Eosin Y, as photosensitizer species [4][5][6][7][8][9][10][11]. Moreover, in recent years, BODIPY (boron dipyrromethene; IUPAC name: 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene) dyes have also attracted considerable attention as light-harvesting units in inter- [12] and intramolecular [13][14][15][16][17] photocatalyst systems for light-driven proton reduction.…”

Tiara-like Octanuclear Palladium(II) and Platinum(II) Thiolates and Their Inclusion Complexes with Dihalo- or Iodoalkanes

“…8 Thiolate-bridged polynuclear group 10 transition-metal complexes with chain structures, [M(-SR) 2 ] n (M = Ni, Pd), have been investigated in detail because they provide efficient catalysis of atom-economical organic reactions such as regioselective additions of thiols and disulfides across alkynes. [8][9][10][11][12][13] Tiara-like complexes, which are also polynuclear group 10 transition-metal thiolates and are characterized by toroidal architectures, have been studied extensively, both in terms of their intriguing structural features and with respect to the preparation of monodisperse metal sulfide nanoparticles, 14 non-linear optical materials, 15 photoactive water-reducing catalysts, [16][17] and host-guest chemistry. 15,[18][19][20][21] Tiara-like nickel complexes have received considerable attention resulting in the preparation of complexes with a variety of ring sizes [Ni(-SR) 2 ] n (n = [4][5][6][8][9][10][11][12].…”