Syntheses, Structures, and Photocatalytic and Sonocatalytic Degradations of Methyl Blue of Cu(II) and Mn(II) Coordination Polymers Based on Tri(triazole) and Dicarboxylate Ligands.

Cu(II) and Mn(II) coordination polymers [Cu(ttpa)(sub)] ( or ) and {[Mn(ttpa)(nip)(HO)]·3HO} ( or ) (ttpa = tris(4-(1,2,4-triazol-1-yl)phenyl)amine, Hsub = suberic acid, nip = 5-nitroisophthalicate) were hydrothermally prepared and the structures were characterized. exhibited a 2D (4,4) network based on [Cu(COO)] dimers with upper and lower dangled ttpa ligands and a 2D → 3D polythreaded network. showed a 2D (4,4) network with dangled uncoordinated triazole rings from ttpa ligands and nitro groups from nip ligands and a 2D → 3D polythreaded network.

Assessment of heavy metals in surface water, sediment and macrozoobenthos in inland rivers: a case study of the Heihe River, Northwest China.

Long-term retention and accumulation of heavy metals in surface water and sediment pose a great threat to the sustainable development of aquatic ecosystems and human health. In this research, macrozoobenthos, and surface water and sediment heavy metal (Mn, Cr, Cu, Ni, Pb, Zn, Cd, and As) samples were collected from 23 sites in the upper and middle reaches of the Heihe River in the summers of 2019-2020. The interrelationships between heavy metals and macrozoobenthos were analyzed by Pearson correlation analysis and redundancy analysis (RDA), and the contamination level and potential ecological risk of the heavy metals in surface water and sediments were assessed by comprehensive pollution index (WQI), single potential ecological risk index ([Formula: see text]), and sediment quality guideline-quotient (SQG-Q), respectively.

Simulated aeromedical evacuation exacerbates burn induced lung injury: targeting mitochondrial DNA for reversal.

Background: Aeromedical evacuation of patients with burn trauma is an important transport method in times of peace and war, during which patients are exposed to prolonged periods of hypobaric hypoxia; however, the effects of such exposure on burn injuries, particularly on burn-induced lung injuries, are largely unexplored. This study aimed to determine the effects of hypobaric hypoxia on burn-induced lung injuries and to investigate the underlying mechanism using a rat burn model.

Methods: A total of 40 male Wistar rats were randomly divided into four groups (10 in each group): sham burn (SB) group, burn in normoxia condition (BN) group, burn in hypoxia condition (BH) group, and burn in hypoxia condition with treatment intervention (BHD) group.

Spatial variation in macrobenthic assemblages and their relationship with environmental factors in the upstream and midstream regions of the Heihe River Basin, China.

The Heihe River is a typical inland river under increasing anthropogenic pressure. To explore the characteristics of the macrobenthic assemblages and their relationships with environmental factors in the upstream and midstream regions of this basin, abiotic conditions and macrobenthic assemblages were investigated in the summers of 2018 and 2019. A total of 50 species were collected, and Arthropoda and mollusks were the dominant groups.

A Co-MOF with a (4,4)-connected binodal two-dimensional topology: synthesis, structure and photocatalytic properties.

The Co-MOF poly[[diaqua{μ-1,1,2,2-tetrakis[4-(1H-1,2,4-triazol-1-yl)phenyl]ethylene-κN:N':N'':N'''}cobalt(II)] benzene-1,4-dicarboxylic acid benzene-1,4-dicarboxylate], {[Co(CHN)(HO)](CHO)·CHO} or {[Co(ttpe)(HO)](bdc)·(1,4-Hbdc)}, (I), was synthesized by the hydrothermal method using 1,1,2,2-tetrakis[4-(1H-1,2,4-triazol-1-yl)phenyl]ethylene (ttpe), benzene-1,4-dicarboxylic acid (1,4-Hbdc) and Co(NO)·6HO, and characterized by single-crystal X-ray diffraction, IR spectroscopy, powder X-ray diffraction (PXRD), luminescence, optical band gap and valence band X-ray photoelectron spectroscopy (VB XPS). Co-MOF (I) shows a (4,4)-connected binodal two-dimensional topology with a point symbol of {4·6}{4·6}. The two-dimensional networks capture free neutral 1,4-Hbdc molecules and bdc anions, and construct a three-dimensional supramolecular architecture via hydrogen-bond interactions.

Synthesis, structure and photocatalytic degradation of organic dyes of a copper(II) metal-organic framework (Cu-MOF) with a 4-coordinated three-dimensional CdSO topology.

Metal-organic frameworks (MOFs) have attracted much interest in the fields of gas separation and storage, catalysis synthesis, nonlinear optics, sensors, luminescence, magnetism, photocatalysis gradation and crystal engineering because of their diverse properties and intriguing topologies. A Cu-MOF, namely poly[[(μ-succinato-κO:O'){μ-tris[4-(1,2,4-triazol-1-yl)phenyl]amine-κN:N'}copper(II)] dihydrate], {[Cu(CHO)(CHN)]·2HO} or {[Cu(suc)(ttpa)]·2HO}, (I), was synthesized by the hydrothermal method using tris[4-(1,2,4-triazol-1-yl)phenyl]amine (ttpa) and succinate (suc), and characterized by IR, powder X-ray diffraction (PXRD), luminescence, optical band gap and valence band X-ray photoelectron spectroscopy (VB XPS). Cu-MOF (I) shows a twofold interpenetrating 4-coordinated three-dimensional CdSO topology with point symbol {6·8}.

Construction of (3,8)-connected three-dimensional cobalt(II) and copper(II) coordination polymers with 1,3-bis[(1,2,4-triazol-4-yl)methyl]benzene and benzene-1,3,5-tricarboxylate ligands.

Coordination polymers (CPs) have been widely studied because of their diverse and adjustable topologies and wide-ranging applications in luminescence, chemical sensors, magnetism, photocatalysis, gas adsorption and separation. In the present work, two coordination polymers, namely poly[(μ-benzene-1,3,5-tricarboxylato-κO:O:O:O:O,O){μ-1,3-bis[(1,2,4-triazol-4-yl)methyl]benzene-κN:N':N''}di-μ-hydroxido-dicobalt(II)], [Co(CHO)(OH)(CHN)] or [Co(btc)(OH)(mtrb)], (1), and poly[[diaquabis(μ-benzene-1,3,5-tricarboxylato-κO:O:O)bis{μ-1,3-bis[(1,2,4-triazol-4-yl)methyl]benzene-κN:N':N''}tetra-μ-hydroxido-tetracopper(II)] monohydrate], {[Cu(CHO)(OH)(CHN)(HO)]·HO} or {[Cu(btc)(OH)(mtrb)(HO)]·HO}, (2), were synthesized by the hydrothermal method using 1,3-bis[(1,2,4-triazol-4-yl)methyl]benzene (mtrb) and benzene-1,3,5-tricarboxylate (btc). CP (1) exhibits a (3,8)-coordinated three-dimensional (3D) network of the 3,8T38 topological type, with a point symbol of {4,5,6}{4·5·6·7·8}, based on the tetranuclear hydroxide cobalt(II) cluster [Co(μ-OH)].

Sonochemical synthesis and characterization of four nanostructural nickel coordination polymers and photocatalytic degradation of methylene blue.

Four nanostructural nickel(II) coordination polymers {[Ni(ttpa)(1,4-ndc)(HO)]·2HO} (1), {[Ni(ttpa)(1,3-bda)]·2HO·DMF} (2·2HO·DMF), {[Ni(ttpa)(1,4-bdc)]·HO} (3) and {[Ni(ttpa)(aip)(HO)]·3HO} (4·3HO) were synthesized using hydrothermal and sonochemical methods (ttpa = tris(4-(1,2,4-triazol-1-yl)phenyl)amine, 1,4-ndc = 1,4-naphthalenedicarboxylate, 1,3-bda = 1,3-benzenediacetate, 1,4-bdc = 1,4-benzenedicarboxylate, aip = 5-aminoisophthalate), and characterized by elemental analysis, IR spectra, scanning electron microscopy, single-crystal and powder X-ray diffraction analysis, optical band gaps, VB XPS spectra and luminescence. The effects of sonication power, time and frequency on the size and morphology of nano-sized 1-4 have been studied. 1 exhibits an unusual 2D + 2D → 3D inclined polycatenated motif based on the (3,3)-coordinated 6-hcb topology.

Synthesis, structure, spectral characteristic and photocatalytic degradation of organic dyes of a copper metal-organic framework based on tri(triazole) and pimelate.

A copper(II) metal-organic framework {[Cu(ttpa)(pim)]·HO} (1) was synthesized and characterized by EA, IR, X-ray powder diffraction, optical band gaps, VB XPS spectra and luminescence (ttpa = tris(4-(1,2,4-triazol-1-yl)phenyl)amine, pim = pimelate). 1 exhibits the 3D pcu topology containing the [Cu(COO)] dimer building block. E, E and E of 1 were 2.

A bifunctional cationic metal-organic framework based on unprecedented nonanuclear copper(ii) cluster for high dichromate and chromate trapping and highly efficient photocatalytic degradation of organic dyes under visible light irradiation.

A bifunctional cationic metal-organic framework {[Cu9(OH)6Cl2(itp)6(1,4-bdc)3](NO3)2(OH)2·20H2O}n (1-NO3-OH·20H2O) was synthesized and characterized (itp = 1-imidazol-1-yl-3-(1,2,4-triazol-4-yl)propane, 1,4-bdc = 1,4-benzenedicarboxylate). In 1-NO3-OH·20H2O, three [Cu3(μ3-OH)(μ2-OH)] trimeric clusters are bridged by two μ3-Cl and form a [Cu9(μ3-OH)3(μ2-OH)3(μ3-Cl)2] cluster. Such a nonanuclear copper(ii) cluster [Cu9(μ3-OH)3(μ2-OH)3(μ3-Cl)2] has not been reported till now, at least to the best of our knowledge.

Broccoli Sprout Extract Alleviates Alcohol-Induced Oxidative Stress and Endoplasmic Reticulum Stress in C57BL/6 Mice.

The potential efficacy of sulforaphane in protecting alcohol-induced hepatic injury in vivo and its underlying mechanism were investigated. Male C57BL/6 mice were orally administrated with broccoli sprout extract (BSE) containing sulforaphane [7.6, 25.

A luminescent zinc(ii) coordination polymer with unusual (3,4,4)-coordinated self-catenated 3D network for selective detection of nitroaromatics and ferric and chromate ions: a versatile luminescent sensor.

A zinc(ii) coordination polymer {[Zn3(mtrb)3(btc)2]·3H2O}n (1) was synthesized and characterized (mtrb = 1,3-bis(1,2,4-triazole-4-ylmethyl)benzene, btc = 1,3,5-benzenetricarboxylate). The polymer 1 shows an unusual (3,4,4)-coordinated self-catenated 3D network with the point symbol of {63}2{62·82·102}{64·82}2. The polymer 1 is the first luminescent sensor for the detection of 2-amino-4-nitrophenol (ANP).

An unusual porous cationic metal-organic framework based on a tetranuclear hydroxyl-copper(ii) cluster for fast and highly efficient dichromate trapping through a single-crystal to single-crystal process.

An unusual porous cationic metal-organic framework based on a tetranuclear hydroxy-copper(ii) cluster displays fast and highly efficient dichromate trapping through a single-crystal to single-crystal process.

A new strategy to obtain tetranuclear cobalt(ii) metal-organic frameworks based on the [Co(μ-OH)] cluster: synthesis, structures and properties.

Three metal-organic frameworks (MOFs) {[Co(OH)(adc)(HO)][Co(OH)(btrb)]·8HO} (1), {[Co(OH)(btrb)(nip)(HO)]·4HO} (2·4HO) and {[Co(OH)(btrb)(btc)(HO)]·9HO} (3·9HO) (btrb = 1,4-bis(1,2,4-triazol-4-ylmethyl)benzene, Hadc = 1,3-adamantanedicarboxylic acid, Hnip = 5-nitroisophthalic acid and Hbtc = 1,3,5-benzenetricarboxylic acid) were synthesized by a hydrothermal method. 1 shows an unusual (3,4)-connected 2D network with a point symbol of (4·6)(4·6·8) based on [Co(μ-OH)] and [Co(μ-OH)] units. 2 is a 6-connected pcu topology based on the [Co(μ-OH)] unit.

Extraction of Peptidoglycan from L. paracasei subp. Paracasei X12 and Its Preliminary Mechanisms of Inducing Immunogenic Cell Death in HT-29 Cells.

L. paracasei subp. paracasei X12 was previously isolated from a Chinese traditional fermented cheese with anticancer activities and probiotic potential.

Tuning zinc coordination architectures by benzenedicarboxylate position isomers and bis(triazole).

Three position isomers 1,2-, 1,3-, 1,4-benzenedicarboxylate and 1,4-bis(1,2,4-triazol-4-yl)benzene were used to assembly zinc(II) coordination polymers {[Zn2(btx)0.5(1,2-bdc)2(H2O)]·H2O}n (1), {[Zn(btx)(1,3-bdc)]·2H2O·(DMF)}n (2) and {[Zn(btx)(1,4-bdc)]·3H2O}n (3). 1 is a (3,4,4,4)-connected two-dimensional network with point symbol (4(2)·6)(4(4)·6(2))(4(3)·6(2)·8)(4(2)·6·10(3)).

A polythreading array formed by a (3,5)-connected 3D anionic network and 1D cationic chains: synthesis, structure, and catalytic properties.

An unusual copper(II) coordination polymer {[Cu(tmtz)(H2O)4][Cu2(tmtz)2(sip)2]·4H2O}n (1) (tmtz = 1,4-bis(1,2,4-triazol-1-ylmethyl)-2,3,4,5-tetramethylbenzene, sip = 5-sulfoisophthalate) is synthesized by the hydrothermal reaction. X-Ray structural analysis shows that 1 is comprised of two distinct and crystallographically independent polymeric motifs polythreading together. The first motif of 1 is an unusual (3,5)-connected 3D anionic network [Cu2(tmtz)2(sip)2].

Poly[bis-(μ-azido-κN:N)[μ-1,2-bis-(imid-azol-1-yl)ethane-κN:N]cadmium].

In the title three-dimensional coordination polymer, [Cd(N(3))(2)(C(8)H(10)N(4))](n), the coordination geometry around the Cd(II) atom is distorted octa-hedral. The Cd(II) atom is coordinated by two N atoms from two cis-positioned bridging 1,2-bis-(imidazol-1-yl)ethane (bime) ligands and four N atoms from four azide anions. Each azide ligand acts in an end-on bridging coordination mode.

Bis(μ-3,5-dimethyl-4H-1,2,4-triazol-4-amine-κN:N)bis-[bis-(thio-cyanato-κN)zinc]-bis-(3,5-dimethyl-4H-1,2,4-triazol-4-amine-κN)bis-(thio-cyanato-κN)zinc (1/2).

In the crystal structure of the title 1:2 adduct, [Zn(2)(NCS)(4)(C(4)H(8)N(4))(2)]·2[Zn(NCS)(2)(C(4)H(8)N(4))(2)] or (Ia)·2(Ib), each Zn(II) atom is coordinated in a distorted tetra-hedral geometry by four N atoms from two triazole rings of two 4-amino-3,5-dimethyl-1,2,4-triazole (admt) ligands and two NCS(-) ligands. In (Ia), double N(1):N(2)-bridging admt ligands connect two Zn(II) atoms, forming a dimer with a Zn(2)(admt)(2) six-membered metallacycle located on a crystallographic inversion center. In (Ib), the admt ligands exhibit monodentate N(1)-coordination modes.

[Soil microbial biomass and respiration rate under effects of different planting patterns of peanut].

A field experiment with randomized design was conducted to study the effects of six planting patterns of peanut, i.e., spring sowing and plastic film mulching, spring sowing and open cultivation, summer sowing and plastic film mulching, summer sowing and open cultivation, intercropped in wheat field, and control of intercropped in wheat field, on soil microbial biomass C, soil active microbial biomass, and soil respiration rate.

A two-dimensional metal-organic framework based on a ferromagnetic pentanuclear copper(II).

The hydrothermal reaction of CuSO(4), 1,2-benzenedicarboxylate (phth), and 1,2-bis(imidazol-1-yl)ethane (bime) yields the two-dimensional metal-organic framework {[Cu(5)(bime)(mu(3)-OH)(2)(phth)(4)](H(2)O)(2)}(n) (1), which is based on the pentanuclear copper(II) cluster [Cu(5)(mu(3)-OH)(2)(phth)(4)] and shows dominant ferromagnetic interactions within the pentanuclear cluster.

Lanthanide diruthenium(II,III) compounds showing layered and PtS-type open framework structures.

Two types of lanthanide diruthenium phosphonate compounds, based on the mixed-valent metal-metal bonded paddlewheel core of Ru(2)(hedp)(2)(3-) [hedp = 1-hydroxyethylidenediphosphonate, CH(3)C(OH)(PO(3))(2)], have been prepared with the formulas Ln(H(2)O)4[Ru(2)(hedp)(2)(H(2)O)2].5.5H(2)O (1.

A novel two-dimensional nickel(II) coordination polymer with 1,4-bis(1,2,4-triazol-1-ylmethyl)benzene and azide ligands.

The coordination geometry of the Ni(II) atom in the title complex, poly[diazidobis[mu-1,4-bis(1,2,4-triazol-1-ylmethyl)benzene-kappa(2)N(4):N(4')]nickel(II)], [Ni(N(3))(2)(C(12)H(12)N(6))(2)](n), is a distorted octahedron, in which the Ni(II) atom lies on an inversion centre and is coordinated by four N atoms from the triazole rings of two symmetry-related pairs of 1,4-bis(1,2,4-triazol-1-ylmethyl)benzene (bbtz) ligands and two N atoms from two symmetry-related monodentate azide ligands. The Ni(II) atoms are bridged by four bbtz ligands to form a two-dimensional (4,4)-network.