Fabrication of Novel CdIn₂S₄ Hollow Spheres via a Facile Hydrothermal Process

Novel CdIn2S4 hollow spheres with small bipyramids aggregating on their surface had been successfully synthesized via a facile hydrothermal process without any template or surfactant. The crystal structure, morphology, and optical properties of the products were characterized by X-ray diffraction, X-ray photoelectron spectra, scanning electron microscopy, transmission electron microscopy, high-resolution transmission electron microscopy, UV−vis diffuse reflectance spectroscopy, and photoluminescence spectroscopy. The reaction conditions influencing the synthesis of these CdIn2S4 hollow sphere structures, such as reaction temperature, reaction time, and the kinds of solvent used, were investigated. Furthermore, on the basis of a series of observations, phenomenological elucidation of a mechanism for the growth of the CdIn2S4 hollow spheres has been presented

Controlled Synthesis of Pyramid-Aggregated Sphere-like Cadmium Sulfide in the Presence of a Polymer

Large-scale three-dimensional cadmium sulfide (CdS) spheres composed of hexagon-based pyramids were synthesized through a facile solution-phase reaction from CdCl2, thioacetamide, and a polymer, where the polymer acted as both a dispersant and coating agent. The reaction conditions influencing the synthesis of these three-dimensional (3D) CdS nanostructures such as reaction temperature, reaction time, the concentration of the polymer, and the kinds of precursors used were investigated. The phase composition, the morphology, and the structure of CdS nanostructures were examined by X-ray diffraction, X-ray photoelectron spectra, field emission scanning electron microscopy, transmission electron microscopy, and high-resolution transmission electron microscopy. The possible formation mechanism of the novel CdS spheres was proposed based on the above analysis. The room-temperature Raman spectrum and photoluminescence spectra of the obtained CdS nanocrystals were also studied

Halobenzenes and Ir(I): Kinetic C−H Oxidative Addition and Thermodynamic C−Hal Oxidative Addition

A (PNP)Ir fragment undergoes facile, room-temperature oxidative addition of C−H bonds in arenes and haloarenes in preference to aromatic carbon−halogen bonds. This preference, however, is determined to be kinetic in nature. Oxidative addition of C−Cl and C−Br is preferred thermodynamically. The products of the C−Cl or C−Br oxidative addition are separated from the C−H oxidative addition products by a high activation barrier and are only accessible at >100 °C. Of the C−H oxidative addition products of chlorobenzene, the isomer with the o-ClC6H4 ligand has the lowest energy

Halobenzenes and Ir(I): Kinetic C−H Oxidative Addition and Thermodynamic C−Hal Oxidative Addition

A (PNP)Ir fragment undergoes facile, room-temperature oxidative addition of C−H bonds in arenes and haloarenes in preference to aromatic carbon−halogen bonds. This preference, however, is determined to be kinetic in nature. Oxidative addition of C−Cl and C−Br is preferred thermodynamically. The products of the C−Cl or C−Br oxidative addition are separated from the C−H oxidative addition products by a high activation barrier and are only accessible at >100 °C. Of the C−H oxidative addition products of chlorobenzene, the isomer with the o-ClC6H4 ligand has the lowest energy

Halobenzenes and Ir(I): Kinetic C−H Oxidative Addition and Thermodynamic C−Hal Oxidative Addition

A (PNP)Ir fragment undergoes facile, room-temperature oxidative addition of C−H bonds in arenes and haloarenes in preference to aromatic carbon−halogen bonds. This preference, however, is determined to be kinetic in nature. Oxidative addition of C−Cl and C−Br is preferred thermodynamically. The products of the C−Cl or C−Br oxidative addition are separated from the C−H oxidative addition products by a high activation barrier and are only accessible at >100 °C. Of the C−H oxidative addition products of chlorobenzene, the isomer with the o-ClC6H4 ligand has the lowest energy

N−H Cleavage as a Route to Palladium Complexes of a New PNP Pincer Ligand

Pd halide and hydride complexes of a new PNP pincer ligand with a central diarylamido moiety can be prepared via N−H cleavage in a neutral amine/diphosphine PNP ligand. The solid-state structure of (PNP)PdCl shows a meridional PNP ligand about an approximately square-planar Pd center. (PNP)PdH hydrodehalogenates alkyl and certain aryl halides, while (PNP)PdX (X = Cl, I, H, OAc) complexes catalyze Heck coupling of ethyl acrylate with aryl halides

N−H Cleavage as a Route to Palladium Complexes of a New PNP Pincer Ligand

Pd halide and hydride complexes of a new PNP pincer ligand with a central diarylamido moiety can be prepared via N−H cleavage in a neutral amine/diphosphine PNP ligand. The solid-state structure of (PNP)PdCl shows a meridional PNP ligand about an approximately square-planar Pd center. (PNP)PdH hydrodehalogenates alkyl and certain aryl halides, while (PNP)PdX (X = Cl, I, H, OAc) complexes catalyze Heck coupling of ethyl acrylate with aryl halides

Additional file 1 of Experimental research on the performance of a Novel Geo-filament anchor for an Earthen architectural site

Additional file 1. The original data of Figures 11 to 22. The load-displacement curves (PS) of L, H, D, R, S, and A, as shown in Figures 11 to 16. The strain distribution curve of geo-filament-grouting interface corresponding to the valid data in Table 11 are extracted respectively (L, H, D, R, S, A), as shown in Figures 17 to 22

Microstructure and Tribological Properties of Lamellar Liquid Crystals Formed by Ionic Liquids as Cosurfactants

Lamellar liquid crystals (LLCs) have been shown to have lubrication properties in many documents due to their bilayer structure. Ionic liquids are often used as additive or surfactant in LLCs. However, ionic liquids used as cosurfactants, which lead to a transition from the hexagonal liquid crystals to LLCs, are relatively rare. Herein, the microstructure of Triton X-100/CnmimNTf2/H2O LLCs formed by using 1-alkyl-3-methylimidazolium bis­(trifluoromethylsulfonyl)­imide ionic liquid (CnmimNTf2, n = 8, 12, 16) as cosurfactant has been determined by polarized light microscopy, small angle X-ray scattering, and 2H NMR technique, and their rheological and tribological properties were investigated. These LLCs show good friction-reducing and antiwear performances. The correlation between the microstructure of the LLCs and their lubricating mechanism is established. The increase of the concentration of CnmimNTf2 and the length of alkyl chain in the LLCs can lead to an obvious reduction in friction coefficients and wear volumes, which are attributed to the higher order of amphiphilic molecules, the thickness of the amphiphilic bilayer, and the smaller cross-sectional area of the polar head group at the hydrophilic and hydrophobic interfaces. The protective film formed by the physical adsorption of ionic liquid LLCs on the surface of friction disk pair and the tribochemical reaction has effectively promoted the lubrication effect. The good lubricating property and antiwear capability indicate their promising and potential applications in water lubrication and biological lubrication

DataSheet_1_Identification of a novel histone phosphorylation prognostic signature in hepatocellular carcinoma based on bulk and single-cell RNA sequencing.docx

BackgroundHepatocellular carcinoma (HCC) is the third leading cause of death in the world, characterized by high morbidity, poor prognosis and high mortality. Histone modifications regulate intracellular gene expression at the post-transcriptional level, and disturbances in the regulatory pattern of histone modifications at individual locus or across the genome can lead to tumorigenesis of HCC. In this study, we constructed a prognosis-related histone phosphorylation regulated (HPR) genes signature and elucidated whether HPR genes can predict overall survival in HCC patients.MethodsDifferentially expressed genes were screened using TCGA, ICGC and GEO databases, and a new risk signature was constructed by univariate Cox regression and Lasso regression analysis. Predictive nomograms were established by multivariate Cox regression of risk scores and clinical parameters, calibration curve and decision curve analysis were used to evaluate the models. The ssGSEA methods were used to determine the effect of risk scores on the tumor immune microenvironment. Data for HCC single-cell RNA sequencing (scRNA-seq) have been downloaded from Gene Expression Omnibus (GEO) to understand the role of HPR genes in tumorigenesis.ResultsOur analyses of nine HPR genes provided prognostic insights. Overall survival in the low-risk and high-risk groups was statistically higher, respectively (PConclusionHPR genes risk score is closely related to the prognosis of HCC, tumor immune process and tumor cell progression.</p