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A terbium-antimony-oxo-cluster bridging antimonotungstate (AT) [H 2 N(CH 3 ) 2 ] 8 Na 6 H 8 {[Tb 4 (H 2 O) 6 Sb 6 O 4 ](SbW 10 O 37 ) 2 (B-α-SbW 8 O 31 ) 2 }·24H 2 O (1) was successfully prepared by reaction of Na 9 [B-α-SbW 9 O 33 ]·19·.5H 2 O, SbCl 3 , Tb(NO 3 ) 3 ·6H 2 O and dimethylamine hydrochloride (DMA·HCl) in acidic aqueous solution. Its tetramer polyanion consists of two divacant [SbW 10...
Two transition-metal containing heteropolyniobates, H[Ni(en) 3 ] 5 [VNb 12 O 40 (VO) 2 ]·15H 2 O (1) and H 3 [Cu(en) 2 ] 4 [VNb 12 O 40 (VO) 2 ]·13H 2 O (2) (en = ethylenediamine), based on dicapped vanadium keggin polyoxoniobates have been synthesized by using ethylene glycol and water as a mixed solvent and characterized by various means. Due to the synergy between polyoxoniobate anions and transition-metal...
In the recent times, cost-effective and eco-friendly processes of synthesizing nanoparticles (NPs) have emerged as a substitute to conventional synthetic methods. Several research groups in the past have synthesized silver oxide (Ag 2 O) nanoparticles from various plant extracts and have been extensively reported. A first of its kind facile green combustion method has been adopted here to synthesize...
We demonstrate that unique cation, ND 4(1−δ)+ , exists between FeSe layers and induces a large distortion of the FeSe 4 tetrahedron in N 0.81(1) D 3.24(2) Fe 2 Se 2 by neutron and X-ray powder diffraction. The electronic correlations of the Fe 3d electrons and Fe d xy , d yz and d xz band widths could be tuned by changing the FeSe 4 tetrahedron distortion, revealing the importance of lattice...
The results of investigation of the spectral characteristics, photostability and thermal degradation of B(III) and Zn(II) complexes with 3,3′,5,5′-tetramethyl-2,2′-dipyrromethene and meso-phenyl-3,3',5,5′-tetramethyl-2,2′-dipyrromethene were presented. It has been shown that meso-phenyl substitution in the 3,3′, 5,5′-tetramethyl-2,2′-dipyrromethene complexes with B(III) and Zn(II) leads to a hypsochromic...
Transition metal phosphides (TMP) have attracted wide attention as catalysts to drive the hydrogenation reaction. However, very few people are interested in regulating the crystal facet exposure intensity of Ni 12 P 5 catalyst to effectively improve the efficiency of hydrodechlorination (HDC) of trichloroethylene. Herein, we report that the exposure intensity of (3 1 2) high exponential crystal facet...
Facile and sensitive fluorimetric detection of azinphos ethyl, diazinon, chlorfenviphos and isofenphos using Eu-Bathophenanthroline (Batho) probe. The method is based on the fluorescence change of Eu-(Batho) 3 at λ em = 616 nm after addition trace amount of pesticides under study. Several experimental frameworks, including pH effect and solvent effect, and low limit detection, were investigated...
Three new Uranium-organic compounds have been synthesized under thestrongacidcondition. Both of the compound 1 [(UO 2 )(TMA)](H 2 BPY) 0.5 ·4H 2 O (TMA = trimesic acid, BPY = 4,4′-bipyridine, CCDC 1841538) and 2 [(UO 2 )(PMA) 0.5 ](H 2 BPY) 0.5 (PMA = pyromellitic acid, CCDC 1870479) show a “sandwich” 2D-structure. The double-protonated 4,4′-dipyridines stabilize the supramolecular structure without...
A 3D Cd II -based metal–organic framework, [CdL ene N 3 ] n (namely complex 1), was prepared by heating CdCl 2 , NaN 3 , and 4-(4-cyanostyryl)pyridine (L) in a mixed solution of i-PrOH and H 2 O at 165 °C for 72 h. Interestingly, cyano and azide groups can react with each other in suit to generate tetrazolate groups during the synthetic process, which can be confirmed by the single crystal X-ray...
Scaling up new transition metal-based oxygen evolution catalysts for practical applications is still hindered by the complex synthesis route. In this study, in situ formation of electrocatalytic active species is simply achieved with a mixture ink composed of Nafion binder, commercially available acetylene black, and Fe 3+ /Co 2+ ions. In this route, energy-intensive material preparation steps or...
Algae-assisted auto-combustion method was adopted to prepare Algae/CoFe 2 O 4 and Algae/Ag-Fe-O nanoparticles (NPs). Structural properties of the samples were investigated using XRD (X-ray Diffraction) FTIR (Fourier Transform Infra-red Spectroscopy), SEM (Scanning Electron Microscopy), and EDX (Energy Dispersive X-ray Analysis) and magnetic properties using VSM (Vibrating Sample Magnetometer). EDX...
A new metal-organic framework with suitable channel size and good stability in biological buffer solution was investigated to load 5-fluorouracil (5-FU) though a simple adsorption process. The successful loading of 5-Fu was confirmed by the gas sorption measurement and the loading capacity was characterized by UV–Vis spectroscopy, which reveal a drug loading of 37.22%. The drug delivery in the simulated...
A novel 3-dimensional (3D) flower spheroidal morphology of Fe 3 O 4 @C@(BiO) 2 CO 3 composite photocatalyst was synthesized by facile hydrothermal treatment with waste corncob and directional induction with Fe 3 O 4 nanoparticles. The photocatalytic performance of Fe 3 O 4 @C@(BiO) 2 CO 3 composite on photodegradation of tetracycline under visible light in 90 min was highest at a relative mass...
We developed a novel hybrid system combining inorganic NaYF 4 : Yb 3+ , Er 3+ @NaYF 4 :Yb 3+ core/shell nanocrystal with organic diketopyrrolopyrrole-based conjugated polymer (PDFT). Directional energy transfer from light-harvesting PDFT to Yb 3+ ions in the shell, and finally to the emitter Er 3+ ions in the core takes place in this hybrid system so as to boost UCNPs upconversion efficiency. The...
Proton-conduction is one of the critical factors in diverse energy-related technologies, including fuel cells and water electrolyzers. Recently, metal-organic frameworks (MOFs) or coordination polymers (CPs) and their composite materials have emerged as new type proton conductors. In this paper, three CPs proton conductors, [H 0.5 (H 2 O) 3 ][Ln 3.25 (C 6 NO 2 H 5 ) 4 (C 6 NO 2 H 4.875 ) 2 (H 2 O)...
The reaction of 3-pyrazolyl-pyridazine-6-carboxylic (LCOOH) and 3-3,5-dimethylpyrazolyl-pyridazine-6-carboxylic (Me 2 LCOOH) acids with bromotricarbonyl-tetrahydrofuran-rhenium(I) dimer in DMF solution followed by water addition, leads simple and cleanly to the rhenium(I) de-halided fac-aquo-tricarbonyl-complexes [(LCOO)(H 2 O)Re(CO) 3 ] and [(Me 2 LCOO)(H 2 O)Re(CO) 3 ] respectively, without the...
Pentadentate ligand, N-cyclohexanoylsalicylhydrazide (H 3 chxshz) (1), and its self-assembled 30-metallacrown-10, [Mn 10 (C 14 H 15 N 2 O 3 ) 10 (CH 3 OH) 10 ]·16CH 3 OH (2), have been synthesized. Ten manganese (III) ions and ten deprotonated ligands (chxshz 3− ) construct a 30-membered ring based on the M-N-N-M linkage in the novel decanuclear manganese(III) metallamacrocycle 2. The chiralities...
Metallogel (VLG) was obtained by reaction of tridentate dibasic donor’s ligand with vanadium pentoxide in 1:1 M ratio in H 2 O\DMF solution. Metallogel formation was studied using IR, UV–Visible and 1 H NMR spectroscopies. Single crystal structure suitable for XRD analysis was obtained by repeated crystallization of VLG from DMF/H 2 O solution after few days. VLG crystallized with monoclinic P2 1...
The purpose of this study was to synthesize nano-sized zeolite 4A from kaolin obtained from Guizhou New Materials Technology Co., Ltd. The properties of the nano-sized zeolite 4A were characterized by X-ray diffraction (XRD), Fourier transform infrared (FTIR), 29 Si magic-angle spinning (MAS)-nuclear magnetic resonance (NMR) and 27 Al MAS-NMR, X-ray fluorescence (XRF), scanning electron microscopy...
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