Synthesis and studies of a molecular copper(I)-triazenido electrocatalyst for catalyzing hydrogen evolution from acetic acid and water

Fang, Ting; Zhou, Lei; Fu, Ling-Zhi; Zhan, Shu‐Zhong; Lv, Qiying

doi:10.1016/j.poly.2014.08.030

Cited by 36 publications

(15 citation statements)

References 29 publications

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“…Both complexes were subjected to electrochemical studies: the cyclic voltammogram of 3 shows two reversible waves at −0.06 and 0.83 V (vs. Fc/Fc + , Ag/AgNO 3 reference electrode) that were attributed to two one‐electron oxidations [Cu 3 ] 3+ /[Cu 3 ] 4+ and [Cu 3 ] 4+ /Cu 3 ] 5+ , respectively. Complex 4 was found to be an effective electro‐catalyst in the reduction of H + to hydrogen both in DMF/acetic acid and phosphate buffer solutions [TOF=355 mol(H 2 )⋅mol −1 (catalyst)⋅h −1 at pH 7.0] …”

Section: Linear Trinuclear Cui Complexesmentioning

confidence: 99%

Linear Copper Complex Arrays as Versatile Molecular Strings: Syntheses, Structures, Luminescence, and Magnetism

Stollenz

2019

Chemistry A European J

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The defined linear arrangement of metal atoms in discrete coordination complexes or polymers is still one of the most intriguing challenges in synthetic chemistry. These chain arrangements are of fundamental importance, because of their potential applications as molecular wires and single molecule magnets (SMM) in microelectronic devices on a molecular scale. Oligonuclear Group 11 metal complexes with suitable bridging ligands, specifically those that are based on copper as the first choice of a cheap precursor coinage metal, are of particular interest in this regard. This is due to the superior luminescence properties of these linear clusters that often show d10⋅⋅⋅d10 interactions in their molecular structures. The combination of CuI with heavier coinage metal ions results in tunable emissive arrays that are also stimuli‐responsive. Thus, both linear multinuclear CuI and linear heteropolymetallic CuI/AgI as well as CuI/AuI clusters are excellent candidates for applications in molecular/organic light‐emitting devices (OLEDs). Alternatively, paramagnetic multinuclear cupric arrays are prominent as potential molecular wires with enhanced magnetic properties through multiple coupled d9 centers. This Review covers the whole range of linear multinuclear assemblies of cuprous and cupric ions in complexes and coordination polymers, their syntheses, photophysical behavior, and magnetic properties. Moreover, recent advances in the rapidly progressing field of hetero‐CuI/AgI and CuI/AuI molecular strings are also discussed.

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Section: Linear Trinuclear Cui Complexesmentioning

confidence: 99%

Linear Copper Complex Arrays as Versatile Molecular Strings: Syntheses, Structures, Luminescence, and Magnetism

Stollenz

2019

Chemistry A European J

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“…[4] We are interested in the design and synthesis of new triazenide compounds, because these species can act as bridges for the assembly of dinuclear and multinuclear metal compounds that exhibit various functions. [5][6][7][8][9][10][11] It is apparent that hydrogenase enzymes based on transition metal complexes (such as iron and nickel) can efficiently catalyze both the generation and the oxidation of hydrogen. [12] However, these enzymes are difficult to obtain in large amounts to adapt for the practical use and their stability is often limited outside of their native environment.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Characterization, and Electrocatalytic Behavior for Hydrogen Evolution of a Dinuclear Copper(II) Complex of 1‐[(2‐Carboxymethyl) benzene]‐3‐[2‐carboxybenzene] triazene

Xie

Liu

Wang

et al. 2020

Zeitschrift anorg allge chemie

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A dinuclear copper(II) complex, [CuII2(L)2] is afforded by the reaction of CuCl2·2H2O with a triazenido ligand, 1‐[(2‐carboxymethyl) benzene]‐3‐[2‐carboxybenzene] triazene (H2L). Structural investigation shows that the copper‐copper distance [2.3985(7) Å] is significantly shorter than the sum of the van der Waals radii of Cu (1.40 Å), suggesting that there are metal‐metal bonds in [CuII2(L)2]. In solid, there is a strong antiferromagnetic interaction between copper(II) ions (J = –135.6 cm–1). In homogeneous environment, [CuII2(L)2] shows electrocatalytic activities for hydrogen generation both from acetic acid with a turnover frequency (TOF) of 32 mol of hydrogen per mole of catalyst per hour [mol(H2)·mol–1(catalyst)·h–1] at an overpotential (OP) of 941.6 mV, and neutral buffer with a TOF of 512 mol(H2)·mol–1(catalyst)·h–1 at an OP of 836.7 mV.

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“…By using the appropriate ligand, we can chelate metal centers in special frame and control the electron withdrawal from the metal ion core, thereby modifying the intramolecular exchange interaction. We focus our interests on the triazenide groups, because these compounds can serve as bridging ligands for the assembly of binuclear and multinuclear metal compounds that exhibit various functions . On the other hand, hydrogenase enzymes based on transition metal complexes (such as iron and nickel) can efficiently catalyze both the generation and oxidation of hydrogen .…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Magnetic and Electrocatalytic Properties of a Dinuclear Triazendio‐Nickel(II) Complex

2017

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A new material both for magnetic coupling and electrocatalytic hydrogen production based on a dinuclear nickel(II) complex, [Ni 2 L 4 ] 1 has been prepared by the reaction of NiCl 2 ·6H 2 O and 1-[(2-methoxy) benzene]-3-[2-pyridine] triazene (HL). Magnetic analysis shows that in the solid state this nickel complex exhibits an antiferromagnetic exchange interaction between nickel(II) ions mediated by triazenido-bridges (J = À6.8 cm À1 ).In homogeneous environment, complex 1 shows electrocatalytic activities for hydrogen generation both from acetic acid and neutral buffer with a turnover frequency (TOF) of 101.25 moles of hydrogen per mole of catalyst per hour (mol H 2 /mol catalyst/h) at an overpotential (OP) of 941.6 mV and a TOF of 998.2 mol H 2 /mol catalyst/h at an OP of 836.7 mV, respectively.

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Synthesis and studies of a molecular copper(I)-triazenido electrocatalyst for catalyzing hydrogen evolution from acetic acid and water

Cited by 36 publications

References 29 publications

Linear Copper Complex Arrays as Versatile Molecular Strings: Syntheses, Structures, Luminescence, and Magnetism

Linear Copper Complex Arrays as Versatile Molecular Strings: Syntheses, Structures, Luminescence, and Magnetism

Synthesis, Characterization, and Electrocatalytic Behavior for Hydrogen Evolution of a Dinuclear Copper(II) Complex of 1‐[(2‐Carboxymethyl) benzene]‐3‐[2‐carboxybenzene] triazene

Synthesis, Magnetic and Electrocatalytic Properties of a Dinuclear Triazendio‐Nickel(II) Complex

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