Benefiting from the unique photoluminescence behavior of lanthanide(III) ions and organic ligands, a metal-organic framework (Ln-MOF) material can simultaneously demonstrate cations molecules endow its superior applications fluorescence sensing behaviors. Herein, we present europium(III) MOF {[Eu

Regulating the energy level of a lanthanide (III) metal–organic framework (Ln-MOF) via an "antenna effect" is effective strategy for achieving ratiometric luminescent dynamics carcinoid biomarker sensing application. Herein, we present europium-based MOF material {[Eu(BPDC)(μ3–OH)(H2O)2]·2.5H2O}n (Eu-MOF, H2BPDC = 2,2′-bipyridine-4,4′-dicarboxylic acid and DMF N,N-dimethylformamide), incorporating tetranuclear cubane-like [Eu4(μ3–OH)4(COO)4]4– cluster cores, 5-hydroxyindole-3-acetic (5-HIAA)...

Three Dy₂ complexes with similar crystal structure have been synthesized. Magnetic studies reveal that they exhibit different magnetic relaxation behaviors, originating from the chemical environments of center Dy³⁺ ions β-diketonate coligands.

Two 12-connected <bold>sqc15</bold> lanthanide(<sc>iii</sc>) MOFs act as luminescent turn-off chemosensors for high-efficiency recognition of Cr₂O₇²⁻ and CrO₄²⁻ anions in aqueous solution.

A lanthanide-based molecular crystalline material endows metal–organic frameworks (MOFs) with many fascinating applications such as fluorescence detection and CO2 chemical fixation. Herein, we describe study a multipurpose europium(III) MOF the formula of {[Eu2(TATAB)2]·2.5H2O·2DMF}n (Eu-MOF) (where H3TATAB is 4,4′,4″-((1,3,5-triazine-2,4,6-triyl)tris(azanediyl))tribenzoic acid ligand) for photoluminescence sensor matrix This Eu-MOF features 1D square channels along c direction pore size...

2,6-Pyridine dicarboxylic acid (DPA) is considered one of the main anthrax biomarkers, and detection DPA great significance. This work presents a Zn(II)-based metal-organic framework (MOF) with formula {[Zn2(2,6-NBC)2(vlpy)Zn(2,6-NBC)(vlpy)0.5]·0.8(2,6-H2NBC)·H2O}n (1) assembled from 2,6-naphthalenedicarboxylic (2,6-H2NBC) 4,4'-vinylenedipyridine (vlpy) for photoluminescence sensor matrix detection. 1 features 3D pillar-layer nanopore sizes ca.13.165 Å × 12.731 Å, 12.725 11.018 13.114 13.165...

Thanks to the superior photoluminescence performance of lanthanide(III) ions sensitized by organic ligands via an "antenna effect" and host–guest interactions between a MOF material targeted analytes, nanoporous can achieve luminescence dynamics through influence thus endowing with ratiometric sensing application. Consequently, 3D Eu(III) based material, {[Eu(BPDC)(μ3–OH)(H2O)]·H2O·DMF}n (Eu-MOF, 2,2′-bipyridine-4,4′-dicarboxylic acid = H2BPDC), assembled H2BPDC ligand Eu3+ for achieving...

A anionic zinc(II) metal–organic framework (MOF) {[(CH3)2NH2][Zn(FDA)(BTZ)2]}n (1) (H2FDA = furan-2,5-dicarboxylic acid and HBTZ 1H-benzotriazole) was synthesized under solvothermal conditions. This MOF demonstrates a rare planar 4-connected usf topology exhibits high thermal chemical stabilities. Postsynthetic cation exchange of 1 with Cu2+, Co2+, Ni2+ afforded series mixed-metal loaded MOFs: {[(CH3)2NH2][ZnxM1-x(FDA)(BTZ)2]}n (M2+@1) (M2+ x 0.59; M2+ 0.83; Ni2+, 0.58). More importantly, is...

Two 3D solvent-stable zinc(ii)-lanthanide(iii) heterometallic metal-organic frameworks (MOFs) {[(CH3)2NH2]2[Zn2Ln2(FDA)6(DMF)2]·2DMF}n [Ln = Eu (Zn-Eu) and Tb (Zn-Tb); H2FDA furan-2,5-dicarboxylic acid] based on Zn2Ln2(COO)10 tetrametallic clusters acid have been successfully synthesized. These MOFs can serve as luminescent sensors for the fast response highly selective detection of aniline via luminescence quenching. More importantly, a linear correlation is observed between their low...

The design and construction of high-nuclear lanthanide clusters with fascinating topology functional properties have been an active area research, however, the development effective approach for obtaining multifunctional is still extremely difficult. Up to now, a systematic guiding further expansion Ln(III)-based showing good lacking. Herein, we synthesize polydentate Schiff base ligand (HL), which reacts β-diketonate salts Ln(acac)3·2H2O, series Ln8...

Developing a sensitive, rapid, and accurate method for the quantitative visual detection of anthrax biomarker dipicolinic acid (DPA) is great significance to human health public safety. Due presence "antenna effect", sensitization Eu3+ ions Tb3+ can be facilely achieved by organic ligands with different degrees exhibits excellent luminescence behavior ions, enabling dual-centered lanthanide metal–organic framework (Ln-MOF) promising ratiometric fluorescence sensor trace DPA determination....

Based on natural cerbinal, a series of novel 4-bit modified cyclopenta[c]pyridine derivatives containing substituted amide or ester moiety were designed and synthesized for the first time. Their structures systematically characterized by NMR high-resolution mass spectra (HRMS). The anti-TMV activities, such as protection, inactivation, curative effects in vivo, evaluated methodically. lethal activities target compounds against agriculturally common pests Plutella xylostella larvae Aphis...

Grain appearance quality is a main determinant of market value in rice and one the highly important traits requiring improvement breeding programs. The genetic basis grain shape endosperm chalkiness have been given significant attention because their importance affecting quality. Meanwhile, introduction NGS (Next Generation Sequencing) has part to play area genomics, offers possibility for high-resolution map construction, population genetics analysis systematic expression profile study. A...

A 3D coordination polymer has been constructed by linking water-bridged cobalt chains <italic>via</italic> dicarboxylic ligands to show interesting SCM behaviour.

Three metal–organic frameworks (MOFs) with d10 metal ions, namely, {[Zn3(TDA)2(bpy)3]·(bpy)·10.5H2O}n (1), {[Zn3(TDA)2(azopy)2.5(H2O)]·4H2O}n (2) and {[Cd2K3(TDA)(HTDA)2(H2O)4]}n (3) (KH2TDA = potassium 1H-1,2,3-triazole-4,5-dicarboxylic acid, bpy 4,4′-bipridine, azopy 4,4′-azobispridine), have been successfully synthesized from KH2TDA the aid of three different length-controllable auxiliary ligands characterized by infrared spectra, elemental analysis, thermogravimetric powder X-ray...

An unusual 3D homospin cobalt(II) molecular topological ferrimagnet has been successfully assembled using a mixed ligand approach, which shows critical temperature of 9 K and compensation 5 K.

Two three-dimensional polymeric Tb(III) and Yb(III) frameworks, namely, {[Tb3(Hptc)(ptc)(pdc)(H2O)6]·2H2O}n (1) {[Yb2(ptc)(ox)(H2O)5]·7H2O}n (2) (H4ptc = pyridine-2,3,5,6-tetracarboxylic acid, H2pdc pyridine-3,5-dicarboxylic ox oxalate), have been synthesized by a hydrothermal method characterized infrared spectra, elemental analysis, powder X-ray diffraction, thermogravimetric single-crystal diffraction. Framework 1 shows an interesting (8,8)-connected net with Schläfli symbol of...

Taking the natural product cerbinal as lead compound, 30 novel 5-aryl-cyclopenta[c]pyridine derivatives were designed and synthesized based on previous bioactivity studies of cyclopenta[c]pyridines. The modification position-5 compound 2 was achieved by amination, bromination, cross coupling using raw material. results tests demonstrated that partial compounds exhibited superior activity against plant viruses compared to 2. Compounds 4g 4k showed higher anti-TMV levels than commercial...

Two new 3D pillared-layer cobalt(II) molecular magnetic materials, formulated as {[Co2(TDA)(TZ)(H2O)2]·H2O}n (1) and {[Co3(TDA)2(bpy)3]·6.75H2O}n (2) (H3TDA = 1H-1,2,3-triazole-4,5-dicarboxylic acid, HTZ 1H-1,2,4-triazole bpy 4,4′-bipyridine), have been successfully assembled with H3TDA auxiliary ligands, respectively. In 1, the neighboring Co(II) ions are connected via TDA3− to generate 2D layers, which further bridged by TZ− build a 8-connected bcu net Schläfli symbol of (424·64), whereas...