It is known that perovskites with the general chemical formula of ABX3 (A, B = cations, X anion) have been intensively studied over last half century because their diverse functional properties, such as ferroelectricity in BaTiO3, piezoelectricity PZT (lead zirconate titanate), and recently developed photovoltaic properties CH3NH3PbI3. However, rather less attention has paid to "inverse" analogs, antiperovskites, which a X3BA, where A are anions cation. Although most important ferroelectrics...

Molecular ferroelectrics are attracting tremendous interest because of their easy and environmentally friendly processing, light weight, low acoustical impedance, mechanical flexibility, which viable alternatives or supplements to conventional ceramic ferroelectrics. However, reports ceramic-like molecular that can be applied in the polycrystalline form have been scarce. Here, according "quasi-spherical theory", we successfully synthesized a ferroelectric with an m3mFmm2 type phase...

Reported herein is direct C(sp3)–H arylation of unprotected benzyl anilines and alkylarenes via consecutive photoinduced electron transfer by visible light irradiation. Reductive quenching cycles radical–radical cross-coupling were involved, paramagnetic resonance experiments provide evidence for the formation radical intermediates formed in situ. The protocol highlights transition metal free, external oxidant broad substrate scope, high efficiency (>60 examples, up to 96%).

Abstract Narrow band gaps and excellent ferroelectricity are intrinsically paradoxical in ferroelectrics as the leakage current caused by an increase number of thermally excited carriers will lead to a deterioration ferroelectricity. A new molecular ferroelectric, hexane‐1,6‐diammonium pentaiodobismuth (HDA‐BiI 5 ), was now developed through gap engineering organic–inorganic hybrid materials. It features intrinsic 1.89 eV, thus represents first ferroelectric with less than 2.0 eV....

Iron oxide nanoparticles promote the migration of mesenchymal stem cells to injury sites Xiuying Li,1,* Zhenhong Wei,1,* Huiying Lv,1 Liya Wu,1 Yingnan Cui,1 Hua Yao,1 Jing Li,1 Hao Zhang,2 Bai Yang,2 Jinlan Jiang1 1Scientific Research Center, China-Japan Union Hospital Jilin University, Changchun, Jilin, People's Republic China; 2State Key Laboratory Supramolecular Structure and Materials, College Chemistry, China *These authors contributed equally this work Background: Developing new...

Fluorescent carbon-based nanomaterials have promising properties such as biosensing, cell imaging, tracing and drug delivery. However, carbon dots (CDs) with specific inherent biological functions not been investigated. Ginsenosides are the components multiple bioactivities found in plants of genus Panax, which attracted a lot attention for their anticancer effect.In this study, we prepared kind novel photoluminescent CDs from ginsenoside Re by one-step hydrothermal synthesis method. The...

Direct N-allylation of azoles with hydrogen evolution has been achieved through the synergistic combination organic photocatalysis and cobalt catalysis. The protocol bypasses stoichiometric oxidants prefunctionalization alkenes produces (H2) as byproduct. This transformation highlights high step- atom-economy, efficiency, broad functional group tolerance for further derivatization, which opens a door C-N bond formation that is valuable in heterocyclic chemistry.

Reactions of [Et4N][TpMoS(S4)] with three equiv. CuI in MeCN or pyridine gave rise to one dicubane and tetracubane anionic clusters, [Et4N]2[{TpMo(μ3-S)3Cu3I}2(μ-I){Cu(μ-I)2(μ4-I)2}] [PyH][{TpMo(μ3-S)4Cu3}4(μ12-I)], their third-order nonlinear optical (NLO) responses were greatly enhanced relative that the precursor.

Switchable second harmonic generation (SHG) materials have potential applications in information storage, signal processing, and so on because they can switch between SHG-on SHG-off states. In this work, we designed synthesized three organic-inorganic hybrid Rb halide three-dimensional (3D) perovskite [1S,4S 2,5-2.2.1-H2dabch]RbX3·0.5H2O (X = Cl, 1; Br, 2; I, 3) based the chiral 1S,4S-2,5-diazabicyclo[2.2.1]heptane (1S,4S-2,5-2.2.1-dabch). The selection of homochiral organic cations ensures...

We report an electrochemical strategy for N -sulfonylation of azoles with sulfonyl hydrazides via radical–radical cross-coupling.

Organic-inorganic hybrid lead halides have been extensively studied due to their outstanding physical properties and diverse compositional elements. However, environmentally benign tin-based hybrids with remarkable flexibility in bandgap engineering less investigated. Herein, we report the successful design synthesis of three organic-inorganic compounds through precise molecular modification: [Me

We synthesized two novel host-guest crown ether molecules [(PTFMA)(15-crown-5)ClO 4 ] ( 1 ) and [(PTFMA)(15-crown-5)PF 6 2 ). Compound transitioned from a non-centrosymmetric space group to centrosymmetric one.

In this study, we present the first synthesis of ferroelectric crystals where carbon vertices carboranes are substituted with cycloalkane groups. These include 1,2-(1,3-propanediyl)-o-carborane (1) and 1,2-(1,4-hexanediyl)-o-carborane (2),...

Organic-inorganic hybrid chiral small-molecule materials combine the inherent properties of both components; however, studies integrating chirality with rare-earth double-perovskite are limited. In this work, we synthesized two enantiomers three-dimensional (3D) double-perovskites, [R-3-HDMP]2CsEu(NO3)6 (1) and [S-3-HDMP]2CsEu(NO3)6 (2), by reacting R-3-HDMP S-3-HDMP (where 3-HDMP = 3-hydroxy-N,N-dimethylpyrrole) CsNO3 Eu(NO3)3 in a 2:1:1 ratio within an acidic solution. Both R-3-HDMPI...

Low-dimensional hybrid organic–inorganic ferroelectric materials have attracted significant interest due to their outstanding optical and electrical properties. Nevertheless, many of the most extensively studied hybrids incorporate lead or tin, which raises concerns related long-term stability environmental sustainability. Here, by using quasi-spherical strategy, we designed obtained a series zero-dimensional indium metal compounds: [Me2CH2X(i-Pr)N][InBr4] (X = H, 1; F, 2; Cl, 3; Br, 4,...

Reported herein is a photoredox/cobaloxime dual-catalytic approach to execute tandem dehydrogenative azolation and aromatization of tetrahydronaphthalene for rapid construction N-(β-naphthyl)azole architectures. This protocol highlights noble metal-free external oxidants-free conditions, step- atom-economy, site-selectivity. A preliminary mechanistic study has uncovered that the transformation undergoes N-centered radical mediated C–H/N–H cross-coupling followed by saturated naphthyl...

Molecular ferroelectrics have garnered significant attention owing to their environmental compatibility, facile synthesis, lightweight nature, and structural versatility. In this study, we present a novel one-dimensional (1D) organic-inorganic hybrid perovskite molecular ferroelectric, [(NMe2)3PCH2Cl]PbI3 (1), which undergoes two successive reversible phase transitions. This compound demonstrates distinct spontaneous polarization in ferroelectric domains, along with two-step switching...

The construction of a new set [(η5-C5Me5)MoS3Cu3]-based supramolecular compounds with different one-dimensional (1D) arrays from two preformed clusters [PPh4][(η5-C5Me5)MoS3(CuX)3] (X = Br (1a), NCS (1b)) 1,2-bis(4-pyridyl)ethane (bpe) and 1,3-bis(4-pyridyl)propane (bpp) is presented. Reactions 1a bpe in molar ratios afforded {[{(η5-C5Me5)MoS3Cu3}2(μ-bpe)3.5Br4]·MeCN}n (2), {[{(η5-C5Me5)MoS3Cu3}2(μ-bpe)3Br4]·Sol}n (3a: Sol DMSO·3MeCN; 3b: 2aniline·3MeCN),...

Reducing the formyl group into a hydroxyl allows further synthesis of novel diiron complexes with various functionalities.

Three multidentate ligands, L₁-L₃, derived from bis(pyridin-2-ylmethyl)amine (L₁) were synthesized. Reaction of these ligands with FeCl3·6H2O in methanol led to the formation iron complexes Fe₁-Fe₃ (Fe₁: [FeL₁Cl3]; Fe₂: [FeL₂Cl3]; Fe₃: [FeL₃Cl3]) good yields. These have been fully characterized. The structures determined using X-ray single crystal diffraction analysis. Electrochemical investigation revealed that complex Fe₃ partially converts Fe₄ ([FeL₃Cl2]PF6) by replacement one its three...