Photochemical formation of hydride using transition metal complexes and its application to photocatalytic reduction of the coenzyme NAD(P)+ and its model compounds

Hollow Rh-COF@COF S-Scheme Heterojunction for Photocatalytic Nicotinamide Cofactor Regeneration

“…Therefore, when two electrons gather at [Cp*Rh­(Bpy)­H 2 O] 2+ , a water molecule is removed to form a [Cp*Rh­(Bpy)] complex, which further combines with H + in solution to form [Cp*Rh­(Bpy)­H] + with active hydrogen. The Rh on [Cp*Rh­(Bpy)­H] + binds to the oxygen of formamide in NADP + and the active hydrogen on [Cp*Rh­(Bpy)­H] + binds to position 4 of the pyridine ring, and then the “H – ” with two electrons is transferred to NADP + to form 1,4-NADPH with high selectivity (Figure a). − The electron transfer behavior of the Rh-COF Bpy @HCOF heterojunction is consistent with the S-scheme route measured by XPS.…”

Deciphering Photoinduced Catalytic Reaction Mechanisms in Natural and Artificial Photosynthetic Systems on Multiple Temporal and Spatial Scales Using X-ray Probes

“…Molecular catalysts, especially transition metal complexes (TMCs), play important roles as light sensitizers and catalytic redox centers in artificial photosynthesis that produces fuels from natural resources, e.g., water and CO 2 . ,− At the molecular level, these processes are initiated by fundamental light–matter interactions, converting photons to charges and providing driving forces for chemical transformations through energy dissipation pathways. X-ray transient spectroscopies, including X-ray transient absorption (XTA), X-ray transient emission (XTE), and resonant inelastic X-ray scattering (RIXS) as described in Section , are particularly suitable for capturing light induced chemical transformations during photocatalytic reactions involving TMCs to reveal the electronic structures of the metal centers, such as oxidation states, covalency, spin state, and orbital occupation, which are crucial for understanding the catalytic reaction mechanism and are difficult to obtain by other means.…”

Extending 2D covalent organic frameworks by inserting anthracene for promoted white-light-mediated photocatalysis

“…Photocatalysis, a green and promising solar energy utilization technology, has been applied in many different fields, such as organic transformation, [1][2][3] pollutant degradation, [4][5][6] CO 2 reduction, [7][8][9] water splitting, [10][11][12] and phototherapy. [13][14][15] Over the years, a series of semiconductor materials, including inorganic semiconductors, 16,17 transition metal complexes, [18][19][20] organic dyes, 21,22 and metal-organic frameworks (MOFs) 23,24 have been in-depth examined for their potential applications in photocatalytic. However, a narrow bandgap, toxicity, complexity of post-processing, and poor stability hinder the popularization of the above photocatalysts in practical production applications, especially in organic transformations.…”