The unique porous metal-organic framework {KCo3(C6H4O7)(C6H5O7)(H2O)2.8H2O}8 (1), which exhibits an unprecedented infinite 3D (3,6)-connected decorated anatase net, has been obtained by hydrothermal reaction. Upon dehydration, the compound retains crystallinity and a type I N2 sorption isotherm, characteristic of microporous solid with apparent Langmuir surface area 939 m2/g pore volume 0.31 cm3/g. Magnetic measurements for both 1 dehydrated show spin-canted antiferromagnetic state below 5 K...

A radical change: Two 3D ZnII complexes with pillared structures have been synthesized from a triamine-based polycarboxylate ligand under hydrothermal conditions. The exhibit reversible radical-based redox photochromism that varies yellow to bluish-violet and dark blue, respectively, UV/blue irradiation, fluorescence adjustable intensity. ESR X-ray photoelectron spectroscopy studies verify photochromic mechanisms based on electron transfer. Photochromism is defined as the transformation of...

A novel niobium oxyiodate sulfate, Nb2 O3 (IO3 )2 (SO4 ), was fabricated by a rational multi-component design under moderate hydrothermal conditions. This is inspired an interesting oxysulfate reaction, which opens new door for synthetic method to effectively introduce refractory metals such as Nb into crystal structures synthesis. ) features cube-like topological structure with large phase-matching second harmonic generation (SHG) response (6×KDP), wide transparency window (0.38-8 μm), and...

By a stepwise growth process, an axial-fan-like and high-nuclearity [Gd6Cu12] cluster compound (1) was obtained, in which six [Cu2] blade fragments encapsulate "hollow" [Gd6(μ3-OH)8] octahedral core. Without the support of centered μ6-O ligand for core, its mean Gd−μ3-O−Gd bridging angle (φ) is largest one among polynuclear [Gdn] (n ≥ 3) clusters. From exchange structural parameters reported complexes containing GdO2Gd unit, empirical formula at first time obtained. It can be concluded that...

Three novel coordination polymers, [Cd(5)(HTTHA)(2)(Hpt)(4)(H(2)O)]·4H(2)O (1; H(6)TTHA = 1,3,5-triazine-2,4,6-triamine hexaacetic acid, Hpt pyridinium-4-thiolate), {[Cd(3)(TTHA)(dps)(H(2)O)(3)](2)}·H(2)O (2), and [Zn(3)(TTHA)(dps)(H(2)O)]·5H(2)O (3; dps =4,4'-dipyridylsulfide), have been synthesized by the flexible hexapodal acid in-situ-generated ligands from a 4,4'-dipyridyldisulfide (dpds) precursor through cleavage of both S-S S-C(sp(2)) bonds temperature-dependent chemical...

A terbium phosphonate with its bright green emission, facile synthesis, and low usage can sense nitroaromatic explosives at the ppb scale rapidly.

A new mixed-ligand metal-organic framework (MOF), ZnATZ-BTB, has been constructed as a luminescent ratiometric thermometer by making use of the intrinsic dual emission at cryogenic temperatures. Its twofold interpenetrated network promotes Dexter energy transfer (DET) between mixed organic lumophores. The temperature-dependent behavior arises from thermal equilibrium two separated excited states coupled DET, which is confirmed Boltzmann distribution fitting. small excited-state gap allows...

A series of lanthanide coordination polymers with a novel flexible hexapodal ligand, formulated as [Ln2(TTHA)(H2O)4]·9H2O (TTHA = 1,3,5-triazine-2,4,6-triamine hexaacetic acid; Ln 1, Eu; 2, Tb; 3, Gd; 4, Dy) and [Yb2(TTHA)(H2O)2] (5) have been hydrothermally synthesized characterized. Complexes 1−4 possess the same three-dimensional 4-connected 4284 networks constructed from Ln2(CO2)4 units two different shapes channels determining certain adsorption for H2 CH4. The thermogravimetric...

To explore mechanism of intestinal flora dysregulation promoting constipation, 60 specific pathogen-free (SPF) mice were used as research objects and treated with constipation population fecal fluid gavage distilled water gavage. Then, relationship between in biofilm-mediated was investigated vitro. The results showed that recombinant serotonin transporter (SERT) messenger ribonucleic acid (mRNA) level the group relative expression SERT mRNA 1.61 ± 0.08 1.49 0.06, which higher markedly than...

With glycine or l-alanine as ligands, a series of novel 3d−4f heterometallic Ln6Cu24 clusters with the formulas [Sm6Cu24(μ3-OH)30(Gly)12(Ac)12(ClO4)(H2O)16]·(ClO4)9·(OH)2·(H2O)31 (1) and [Ln6Cu24(μ3-OH)30(Ala)12(Ac)6(ClO4)(H2O)12]·(ClO4)10·(OH)7·(H2O)34 (2·Ln) (Ln = Tb, Gd, Sm, La) were synthesized by self-assembly, among which 1 2·Tb characterized X-ray structure analysis. The metal skeleton may be described huge {Ln6Cu12} octahedron (constructed 6 LnIII ions located at vertices 12 inner...

Abstract The first successful attempt to construct 3D supramolecular frameworks with high‐nuclear 3d–4f heterometallic clusters as a node is reported. self‐assembly of Ln 3+ , Cu 2+ and amino acid in solution leads the formation two polymers, 35‐nuclear complex {Sm 6 29 } 1 primitive cubic net‐like structure 36‐nuclear {Nd 30 2 face‐centred network type structure. Glycine L ‐proline, respectively, were used ligands. It should be noted that has chiral framework. X‐ray analyses show...

A 2D net-like lanthanide-copper heterometallic supramolecular network {Ln6Cu27} 1 was synthesized with Ln6Cu24 octahedral cluster as the node and trans-Cu(glycinato)2 group linker. The compound represents first example of polymer high-nuclear 3d–4f node.

Two enantiomorphic Cd(II) coordination polymers with three-dimensional homochiral double helices have been assembled respectively from two tripodal enantiopure amino acid derivatives, which exhibit (3,4)-connected (63)(63.103) topology and strong purple fluorescence.

Enantioseparation is an integral process in the pharmaceutical industry, considering ever-increasing demand for chiral medicine products. As a new material, porous metal–organic frameworks (MOFs) have shown their potential application this field because structures are easy to adjust and control. Though recognition between racemic substrates has made preliminary progress, discussions of size-matching effects rare. Herein with help channel-tunable homochiral MOFs (HMOFs), diols different sizes...

ABSTRACT 1-Deoxy-D-xylulose-5-phosphate synthase (DXS) is the first key enzyme in MEP responsible for monoterpene synthesis. To reveal its regulatory effect on floral scents of lily, LiDXS2 was cloned from Oriental Lily ‘Sorbonne’; protein location determined using subcellular localisation; and expression pattern different flowering stages tissues probed by fluorescence quantitative PCR. The plant vector constructed to transform Arabidopsis thaliana , transgenic plants were characterised....

Hypertrophic scars are a type of pathological scar that can cause discomfort, pain, and itching. The assessment hypertrophic depends largely on the clinician's long-term experience. Computer-aided greatly improve efficiency accuracy assessment. In this paper, we propose deep neural network-based method for degree pigmentation vascularity using real images. Firstly, large amount images were collected to produce dataset including patients all ages distribution lesions in different parts body....

Solar-blind ultraviolet (UV) nonlinear optical (NLO) crystals are urgently demanded for their important applications in modern lasers. Herein, a remarkable solar-blind UV NLO crystal, K[H 2 N(CH COO) ], has been rationally obtained by...

Lily (Lilium Asiatica Hybrida) is a globally known perennial herbaceous bulbous flower, popular for its large, colourful flowers and high economic ornamental value. However, pollen generation severe issue that reduces the cosmetic value of lilies. In this study, MADS transcription factor LiAG1 was isolated identified from Lilium Hybrida ‘Ice Pink Queen’, male-sterile variety obtained through several years hybridisation in our laboratory. qRT-PCR revealed expression greater lily anthers,...

Polymeric coatings that combine resistance to adhesion ("defending") and killing ("attacking") of biocontaminants were proposed endow the surface with nonadhesive bactericidal capabilities. In contrast, a zwitterionic copolymer P(GMA-co-DMAPS) antifouling groups ([2-(methacryloyloxy)ethyl]dimethyl-(3-sulfopropyl)ammonium hydroxide, DMAPS) zwitterionic/cationic P(GMA-co-DMAPS-co-DMC) ([2-(methacryloyloxy)ethyl]trimethylammonium chloride, DMC) synthesized, which latter exhibited synergistic...

Ultraviolet (UV) nonlinear optical (NLO) crystals that own the capability of converting wavelength lasers into UV region, have attracted lots research interests. However, exploration of...

Abstract Asarin Scandens Rose (‘F499’) is a perennial vine that visually appealing, yet the salinization of soil due to urban activity may reduce its potential as landscaping plant. Our research utilized exogenous calcium diminish negative effects salt stress on growth F499. Under stress, application 5 and 10 mM CaCl2 resulted in considerable expansion leaf area, addition heightened deposition chlorophyll, thus improving color leaves. Additionally, it was shown F499’s net photosynthetic rate...

A 1D zinc coordination polymer with bright green fluorescence, [Zn(4,4'-bipy)(H2O)4][Zn(4,4'-bipy)(1.5)(L)(H2O)2]2(L).6H2O (L = 4,4'-bis(2-sulfonatostyryl)biphenyl), has been designed, hydrothermally synthesized and characterized; the interesting structure consists of three types infinite chain: a neutral sandwich-like chain, ionic cationic chains.

Four novel coordination polymers, {Na2[Co3(H2TTHA)2(H2O)12](H2O)2}·4(H2O) (1), {Na[Cu4(H2TTHA)(HTTHA)(H2O)8](H2O)3}·5(H2O) (2), [Cd3(TTHA)(H2O)4] (3) and [Ca5(HTTHA)2(H2O)8] (4), (H6TTHA = 1,3,5-triazine-2,4,6-triamine hexaacetic acid) have been synthesized by self-assembly of the flexible hexapodal acid H6TTHA corresponding metal salts. The four complexes exhibit frameworks with different topologies due to diverse modes conformations H6TTHA. Complex 1 shows a 3D network (4,4,6)-connected...

Five novel Zn(II)/Cd(II) coordination polymers, [Zn2(tib)(L1)(μ2-OH)(HCOO)·2H2O]n (1), [Cd2(tib)2(L1)(NO3)2·2H2O·4DMF]n (2), [Cd2(tib)2(L2)(NO3)2·2H2O·4DMF]n (3), [Cd(tib)(L3)·H2O·2DMF]n (4) and [Cd3(tib)4(L4)·5/2NO3·1/2OH·3DMF]n (5) (tib = 1,3,5-tris(1-imidazolyl)benzene, H2L1 terephthalic acid, H2L2 isophthalic H2L3 1,4-naphthalenedicarboxylic H3L4 (1α,3α,5α)-1,3,5-cyclohexanetricarboxylic DMF N,N-dimethylformamide), have been synthesized under solvothermal conditions. In compound 1,...