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Preparation of ,-[Pt(py)(N)(OH)] via Photoinduced Reactivity of [Pt(NO)] Anion.
Inorg Chem
January 2025
Nikolaev Institute of Inorganic Chemistry, Siberian Branch of the Russian Academy of Science, 630090 Novosibirsk, Russia.
The photoinduced reaction of [Pt(NO)] with pyridine or its derivatives (L) was found to result in the formation of [PtL](NO) salts in high yield. This transformation was successfully probed for methyl- and carboxyethyl-substituted pyridines, and the corresponding [PtL](NO) salts were isolated and fully characterized using single-crystal X-ray diffraction (SCXRD). Anation of the [Pt(py)] cationic complex with N was studied by H NMR spectroscopy in aqueous and water/dimethyl sulfoxide solutions of [Pt(py)](NO).
View Article and Find Full Text PDFThe divergent reactivity of β-diketiminato aluminium hydrides with organophosphoryl compounds.
Dalton Trans
January 2025
Institute of Inorganic Chemistry, Georg-August-Universität Göttingen, Göttingen Tammannstrasse 4, D-37077, Germany.
The reactions of LAlH (L = HC(CMeNAr), Ar = 2,6-PrCH) (1) with diphenylphosphane oxide [PhP(O)H], diphenylphosphinamide [PhP(O)NH], and diaryl/alkyl phosphane [(RO)P(O)H (R = Ph, or Pr)] afford their corresponding compounds with compositions LAl(H)OP(Ph) (2), LAl[OP(Ph)] (3), LAl{[N(H)P(O)(Ph)][OP(Ph)]} (4), LAl(OPr) (5), and LAl(OPh) (6), respectively. These reactions probably undergo a process of dehydrogenation coupling, deaminating dehydrogenation coupling, or chain-breaking coupling. It is noteworthy to mention that the reaction of compound 1 with 2 equiv.
View Article and Find Full Text PDFHeterogeneous Frustrated Lewis Pair Catalysts: Rational Structure Design and Mechanistic Elucidation Based on Intrinsic Properties of Supports.
Acc Chem Res
January 2025
The Wolfson Catalysis Centre, Department of Chemistry, University of Oxford, Oxford OX1 3QR, U.K.
ConspectusThe discovery of reversible hydrogenation using metal-free phosphoborate species in 2006 marked the official advent of frustrated Lewis pair (FLP) chemistry. This breakthrough revolutionized homogeneous catalysis approaches and paved the way for innovative catalytic strategies. The unique reactivity of FLPs is attributed to the Lewis base (LB) and Lewis acid (LA) sites either in spatial separation or in equilibrium, which actively react with molecules.
View Article and Find Full Text PDFHigh-efficiency three-port beam splitter under normal incidence.
J Opt Soc Am A Opt Image Sci Vis
August 2024
A fused-silica three-port grating under TE-polarized normal incidence is designed and manufactured with improved diffraction efficiency (DE) and bandwidth. A physical explanation of the grating diffraction is provided using the simplified mode method (SMM), and parameters of the grating structure were optimized using rigorous coupled-wave analysis (RCWA). For a given set of optimized parameters, a transmitted three-port grating with an area of 170 ×170 was fabricated by scanning beam interference lithography (SBIL), and diffraction properties were investigated.
View Article and Find Full Text PDFTopology optimization of blazed gratings under conical incidence.
J Opt Soc Am A Opt Image Sci Vis
August 2024
A topology optimization method is presented and applied to a blazed diffraction grating in reflection under conical incidence. This type of grating is meant to disperse the incident light on one particular diffraction order, and this property is fundamental in spectroscopy. Conventionally, a blazed metallic grating is made of a sawtooth profile designed to work with the ±1st diffraction order in reflection.
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