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Three new 1D chain structure type hybrid organic-inorganic lead(ii) halides are presented IQPbBr3, QPbBr3 and QPbI3, templated by large organic cations, isoquinolinium ([IQ+] = protonated isoquinoline) and its isomer quinolonium ([Q+] = protonated quinoline). All three compounds possess the same generic formula as cubic perovskite, ABX3, but adopt different structures. IQPbBr3 adopts a 1D face-sharing single chain hexagonal perovskite structure type, and the other two, QPbBr3 and QPbI3, adopt a non-perovskite structure which is built from 1D edge-sharing octahedral double chains. Crystal structures and preliminary photophysical properties are discussed. Two of them have lower bandgaps than the other reported materials with the same structure type, indicating the value of further exploratory studies for these types of materials.Diels-Alder-reactions of a thiazol-2-thione-based, tricyclic 1,4-di-phosphinine were investigated, showing that the central aromatic π-system can react with various dienophiles. The reaction with 4-phenyl-1,2,4-triazoline-3,5-dione was special as the product revealed a remarkable sensitivity towards light, thus enabling the photochemical deprotection of the tricyclic 1,4-diphosphinine.The zeolite imidazolate framework ZIF-8 exhibits superior catalytic performance in the epoxidation of the electron-deficient C[double bond, length as m-dash]C bond in menadione using aqueous hydrogen peroxide as the oxidant. The catalysis has a truly heterogeneous nature and the framework structure remains intact. This is the first example of oxidation catalysis with ZIF-8.The development of low-cost and high-efficiency photocatalysts is an important way to realize photocatalytic hydrogen production. In this work, polyvinylpyrrolidone (PVP) is used as a morphological modifier to prepare a three-dimensional (3D) sea-urchin-structure NiCo2O4. Mn0.05Cd0.95S and NiCo2O4 spontaneously assemble into a spatial structure of the NiCo2O4-Mn0.05Cd0.95S p-n heterojunction under the action of the Coulomb force. The 3D sea-urchin-structure NiCo2O4 provides support for the Mn0.05Cd0.95S particles in the space, which improves the dispersion of Mn0.05Cd0.95S and exposes more reaction sites. Furthermore, the NiCo2O4-Mn0.05Cd0.95S composite catalyst with a spatial structure has good light absorption capacity. Mn0.05Cd0.95S is tightly bound on the surface of NiCo2O4, forming a built-in electric field at the contact interface to induce the directional migration of photogenerated carriers and effectively inhibit the recombination of electrons and holes. Photoelectrochemical and fluorescence tests show that the appropriate conduction band and valence band positions of NiCo2O4 and Mn0.05Cd0.95S, and the built-in electric field of the p-n heterojunction are more conducive to thermodynamic charge transfer. Because the composite catalyst has a large number of reaction sites, and shows faster charge transfer speed and effective inhibition of the recombination of electrons and holes, the hydrogen production rate of 3%NiCo2O4-Mn0.05Cd0.95S is as high as 17 008 μmol g-1 h-1, which is 4.45 times that of pure MCS. This work will provide new ideas for the design of 3D metal oxides and trigger the synthesis of other p-n heterojunction catalysts with a spatial structure.A precise knowledge of the optical properties, specifically the refractive index, of organic/inorganic perovskites, is essential for pushing forward the performance of the current photovoltaic devices that are being developed from these materials. Here we show a robust method for determining the real and the imaginary part of the refractive index of MAPbBr3 thin films and micrometer size single crystals with planar geometry. The simultaneous fit of both the optical transmittance and the photoluminescence spectra to theoretical models defines unambiguously the refractive index and the crystal thickness. Because the method relies on the optical resonance phenomenon occurring in these microstructures, it can be used to further develop optical microcavities from perovskites or from other optical materials.Computer-aided molecular design (CAMD) is a well-known tool for the theoretical assessment of chemical structures before their experimental synthesis. In this study, we used this method to consider the important criteria for a chemical structure as an energetic plasticizer for an energetic azido binder. The number of new azido-ester structures were initially designed, and their physicochemical and energetic properties were determined via theoretical calculation by molecular dynamics simulations and machine learning-based methods. Considering the balances between several criteria, two of these theoretical chemical structures (including GTAA (glyceryl tris(azidoacetate)) and TEGBAA (triethyleneglycol bis(azidoacetate))) were then selected, synthesized, and characterized. The comparison of experimental and theoretical results to evaluate the physicochemical properties of these new azido-ester plasticizers showed an acceptable agreement between the two methods. https://www.selleckchem.com/products/fluorofurimazine.html Finally, the compatibility and efficiency of these two new azido-ester plasticizers on the rheological and thermal properties of glycidyl azide polymer (GAP) were investigated using rheometry and DSC analyses, and compared with some common energetic plasticizers. The results confirmed that these two new azido-esters are appropriate plasticizers for GAP since they exhibited higher safety over comparable plasticizers, in addition to the real performance.In this work, we report the syntheses and physicochemical characterization of new chloro and aqua complexes of Ru(ii) with 2,4,6-tris(2-pyridyl)-1,3,5-triazine (tptz) and 2,2'-bipyridines substituted with donor and acceptor groups in the 4,4'-positions. The aqua complexes behave as precursors for water oxidation catalysts at pH = 1 using Ce(iv) as a sacrificial oxidant. Besides, the oxidized forms Ru(iv) and Ru(v) have been characterized at different pH values by electrochemistry, UV-Visible spectroscopy and spectroelectrochemistry. The reaction mechanisms were studied by combining mixing and stopped-flow experiments with spectrophotometric monitoring in the UV-visible region and all the rate constants were determined together with the corresponding TON and TOF values at pH = 1. Calculations based on Density Functional Theory (DFT and TD-DFT) were performed to support the experimental data.