The structures and properties of two mononuclear Dy(iii) enantiomeric pairs were dramatically controlled by crystallization temperature; the pair with coordinated chiral N,N'-donor ligands exhibits enhanced single-ion magnetic, ferroelectric chiroptical respect to other one protonated ligands.

Magnolia biondii Pamp., an elegant ornamental tree that graces early spring landscapes, has flower buds are widely used as Traditional Chinese Medicine ‘Xin Yi’. In this study, the phytotoxic effects of aqueous extracts derived from tepal litter (EMT) and bract (EMB) M. were evaluated on six target plant species: Triticum aestivum L., Lactuca sativa Zoysia pacifica, Agrostis canina Trifolium pratense L. Axonopus compressus. Secondary metabolites in EMT EMB tentatively characterized by liquid...

Alkynol served as an enolizable carbonyl equivalent to react with (thio)urea and aromatic aldehydes, furnishing a variety of spirofuran-hydropyrimidinone compounds in good yields excellent diastereoselectivities. The one-pot multicomponent reactions were realized co-catalysis palladium chloride trifluoroacetic acid through Biginelli-like tandem reaction pathway.

Co-encapsulated xanthoxylin (GX-50) and vitamin C (Vc) microcapsules (GX-50-Vc-M) were prepared by the combination of a water-in-oil-in-water (W1/O/W2) double emulsion with complex coacervation. The W1/O/W2 was two-step emulsification, it has uniform particle size 8.388 μm high encapsulation efficiencies GX-50 (85.95%) Vc (67.35%) under optimized process conditions. Complex coacervation occurs at pHs 4.0-4.7, which highest efficiency pH 4.5. coacervate tannic acid solidifying (namely, wet...

Co-encapsulated hydrophilic vitamin C (Vc) and hydrophobic xanthoxylin (GX-50) liposomes (L-Vc-GX-50) were prepared using ethanol injection ultrasonic methods characterized by dynamical light scattering, ζ-potential, cryogenic transmission electron microscopy, UV–vis spectroscopy, Fourier transform infrared antioxidant capacity, tyrosinase activity, in vitro permeation measurements. L-Vc-GX-50 are formed the assembly of egg yolk lecithin, cholesterol, tween 80, with Vc GX-50 encapsulated...

Abstract Thioglycolic acid (TGA) is a popular coating material for the preparation of aqueous quantum dots (QDs), yet dihydrolipoic (DHLA) has not been studied much. Here we present detailed study on synthesis CdTe/CdS with DHLA coating. The outer CdS shell and stabilizer provide efficient confinement electron hole wave functions inside nanocrystal as well high photochemical stability. At optimum ratios reaction conditions, results indicate that DHLA‐capped QDs exhibit fluorescence yields...

A smart two-component gelator system was prepared by a combination of <sc>d</sc>-gluconic acetal derivatives and terpyridyl moieties.

Several effective phase-selective gelators (PSGs) have been developed from a series of cheap and easy-to-make sorbitol-based compounds for the removal many oils their biphasic mixtures with water. The dominant factors that drive gelation studied using FTIR temperature-dependent 1H NMR spectra. Additionally, case PSGs exhibit significant self-healing properties can recover gelatin block hence provide more flexible approach oil-spill recovery. highly performance these organogelators indicate...

The ferrocenylimines of general formula [(η5-C5H5)Fe(η5-C5H4)-CH2N═CH-C(R)═CH-C6H5] with R = H (2a) and CH3 (2b) were conveniently prepared from ferrocenylmethylamine. Reaction 2a,b lithium tetrachloropalladate in methanol the presence anhydrous sodium acetate resulted formation di-μ-chloro-bridged heteroannular cyclopalladated complexes 3a,b via unsubstituted ferrocenyl C–H bond activation related ligands. Treatment triphenylphosphine gave Pd{[(η5-C5H4)Fe(η5-C5H4)CH2N═CH-CH═CH-C6H5]}ClPPh3...

Water-soluble polymer particles (PPs) with strong fluorescence emission were prepared from hyperbranched poly(ethylenimine) (PEI) and terpyridine-bearing aldehyde (TPy) via Schiff base reaction self-assembly in aqueous phase. TPy/PEI PPs then used to develop a series of luminescent lanthanide coordination polymers (Ln-CPPs). The optical properties these Ln-CPPs are readily modulated over wide spectrum water systems. Finally, water-soluble white-emitting achieved by controlling the ion...

Four new palladium pincer complexes incorporating ONO type furoylhydrazone ligands have been prepared in good yields. These were structurally characterized by elemental analysis, infrared, 1 H‐ and 13 C‐NMR spectra. X‐ray single crystal analyses of Pd1–Pd4 revealed that the metal center adopted a slightly distorted square planar geometry which hydrazone bound ion via phenolic‐O, azomethine‐N imidolate‐O atoms. Using these as catalyst, excellent yields biaryls could be obtained for coupling...

Furoylhydrazones of general formula 4‐R–C 6 H 4 –CH=NNH–CO–2‐C 3 O [R = (HL1) and OCH (HL2)] have been conveniently prepared from furan‐2‐carbohydrazide. The reaction HL1 with Li 2 [PdCl ] CH COONa provided the di‐µ‐chloro‐bridged cyclopalladated complex [Pd(C –CH=N–NH–CO–2‐C O)(µ‐Cl)] ( 1 ) through aryl C–H bond activation, whereas unusual tetranuclear cluster [Pd(4‐CH O–C was obtained ligand HL2. crystal structures show a slightly distorted square‐planar coordination geometry around...

Due to their unique stereoscopic structure and rich physical chemical properties, spiro heterocyclic compounds have aroused the continuous attention of researchers on efficient synthesis methods.The exo-cyclic enol ethers generated in situ by exo-dig cyclization alkynols under promotion transition metals could serve as C2 synthons react with various "amphiphilic substrates" through cascade reactions mode.These afford skeletons highly direct manners.In this paper, application progress...

A highly efficient synthesis of structurally diverse ortho -acylphenol–diindolylmethane hybrids 3 using carboxylic acid-activated chromones as versatile synthetic building blocks is reported here for the first time, through 1,4-nucleophilic addition and followed by a decarboxylation pyrone ring opening reaction process.

Phosphorous-based organic acids (P) and diamine (M) were used to produce a supramolecular PM complex at 2:1 molar ratio, which then formed stable gel in dimethyl sulfoxide (DMSO) N, N-dimethylformamide (DMF). According SEM, the morphologies of aggregates depended on steric substitute phosphorous-based structure complementary diamine. 31P NMR FTIR spectroscopies revealed that hydrogen bonding within was main driving force for self-aggregation. XRD studies two-component gelators mainly...

In the title complex, [ZnI(2)(C(14)H(21)BrN(2)O)]·CH(3)OH, asymmetric unit consists of a mononuclear zinc(II) complex mol-ecule and methanol solvent mol-ecule. The compound was derived from zwitterionic form Schiff base 4-bromo-2-[3-(diethyl-amino)propyl-imino-meth-yl]phenol. Zn(II) atom is four-coordinated by imine N phenolate O atoms ligand two iodide ions in distorted tetra-hedral coordination. crystal structure, mol-ecules are linked to through N-H⋯O O-H⋯O hydrogen bonds. One I...

In the approximately planar molecule of title compound, C(11)H(8)N(4)O(4)S, dihedral angle between thio-phene and benzene rings is 5.73 (10)°. crystal structure, bifurcated inter/intra-molecular N-H⋯(O,O) hydrogen bonds are present. The intermolecular links lead to inversion dimers containing an R(2) (2)(12) graph-set motif.

The binuclear title complex, [Hg(2)(C(10)H(14)N(2)O(8))(2)(C(18)H(18)N(4))]·2CH(3)OH, lies on an inversion center with the unique Hg(II) ion coordinated in a disorted octa-hedral environment one Hg-N bond significantly shorter than other two. In crystal structure, inter-molecular O-H⋯O hydrogen bonds link complex and solvent mol-ecules into three-dimensional network.

The title compound, C(14)H(12)N(2), in contrast to the previously reported monoclinic polymorph [Lei et al. (2009 ▶). Acta Cryst. E65, o2613], crystallizes ortho-rhom-bic crystal system. dihedral angle between imidazole ring system and phenyl is 76.78 (16)°. Weak C-H⋯N C-H⋯π inter-actions are observed structure.