8 research outputs found

    Sonochemical synthesis and characterization of a novel hetro-binuclear metal organic nano polymer based on picolinic acid ligand

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    Nanoparticles of one new lead and K coordination polymer (CP), {[Pb(pyc)(N)K].½HO} (1) Hpyc = picolinic acid ligand, has been synthesized by use of a sonochemical process and characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRPD), Fourier transform infrared spectroscopy (FTIR) spectroscopy and elemental analyses. The single crystal X-ray data of compound 1 imply that the Pb ion is seven coordinated. The thermal stability of compound 1 has been studied by thermogravimetric (TG) and differential scanning calorimetry (DSC). The role of temperature, reaction time and ultrasound irradiation power on the size and morphfology of the nano-structured compound obtained from 1, have been investigated. Results indicate that an increase of temperature and sonication power and a decrease in time reaction led to a decrease of particle size

    Improvement of photosynthetic pigment characteristics, mineral content, and antioxidant activity of lettuce (lactuca sativa l.) by arbuscular mycorrhizal fungus and seaweed extract foliar application

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    Beneficial plant-microbe interaction for enhancing crop yield and quality is a sustainable way to achieve eco-friendly, desirable agricultural productions. The main objective of this experiment was to evaluate the individual and combined effects of an arbuscular mycorrhizal fungus (AMF) strain (Funnehformis mosseae) and a seaweed extract (SWE) derived from Ascophyllum nodosum, on the growth and physiological responses of lettuce (Lactuca sativa L.). Lettuce plants were inoculated with commercial AMF inoculum (5 g kg(-1) soil), and SWE foliar application was done at three levels (0.5, 1.5, and 3 g L-1). The findings revealed that AMF along with SWE generated the greatest impact. In fact, co-application of AMF inoculation and 3 g L-1 SWE considerably enhanced root colonization, chlorophyll a, chlorophyll b, total chlorophyll, carotenoids, and mineral content in the shoots and roots (N, P, K, Ca, Fe, Zn, and Mn content) of lettuce plants. This combination improved initial fluorescence (F-0), photochemical efficiency of PSII (F-V/F-m) and Y(NO) and total antioxidant activity (TAA), whereas the maximum fluorescence, (F-m) and Y(II), showed the highest increase in lettuce plants treated with AMF and 1.5 g L-1 SWE. Furthermore, AMF inoculation along with SWE, at concentrations 1.5 and 3 g L-1, considerably enhanced variable fluorescence (F-V) and the activity of water decomposition in electron donor photosystem II (F-V/F-0). As a result of these findings, it can be stated that the co-application of AMF and SWE positively improves the growth and development of lettuce plants.Tomas Bata University in Zlin [IGA/FT/2022/004]; University of Maragheh, IranTomas Bata University in Zlin, TBU: IGA/FT/2022/004; University of Maraghe

    Achieving Different Morphologies for a Zinc(II) Coordination Polymer by Green Sonochemical Synthesis and New Precursors for the Preparation of Zinc(II) oxide

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    A new 2D zinc(II) coordination polymer(CP) 1, [Zn(N3)(L)]n(1), [L= 2-picolinate] has been synthesized using branch tube approach. Nano and micro structures of CP 1 were synthesized using sonochemical technique in diverse conditions (different times and solvents) and they were identified by elemental analysis, FT-IR spectra, scanning electron microscopy (SEM) and powder X-ray diffraction (PXRD). Single-crystal X-ray studies show that CP1 contains Zn(II) atoms with different coordination geometries (tetrahedral and octahedral). The effects of solvents and reaction time on the morphology and size of the nano and microstructure of CP 1 were also evaluated. The results showed that change in reaction time has almost no effect on the size of particles, but change in solvent leads to changes in the morphology of particles

    An investigation on the morphology of a new coordination polymer via change effective factors based on eco-friendly sonochemical synthesis; new precursor for the preparation of cadmium(II) oxide

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    A new 2D cadmium(II) coordination polymer (CP) formulated as [Cd(NCS)(L)(EtOH)2]n(1) [L = isonicotinic acid] was prepared by the branch tube method and the sonochemical method was applied to prepare submicro and micro structures of CP1 under various conditions (different solvents and times). The sonochemical products were characterized by elemental analysis, powder X-ray diffraction (PXRD), FT-IR, and scanning electron microscopy (SEM). The results of a single crystal X-ray analysis of compound 1s how that Cd2+ ion is 6-co-ordinated, isonicotinato and thiocyanato both act as bidentate ligands, and the coordination sphere of the metal ion is octahedrally distorted. The effects of solvents and reaction time on the morphology and size of the sonochemical products were studied, and the results indicate that an increase in time leads to a decrease in the size of the submicro and micro-structures while a change in the solvent has almost no effects on their size

    Sonochemical synthesis and characterization of a novel hetro-binuclear metal organic nano polymer based on picolinic acid ligand

    No full text
    Nanoparticles of one new lead and K coordination polymer (CP), {[Pb(pyc)(N)K].½HO} (1) Hpyc = picolinic acid ligand, has been synthesized by use of a sonochemical process and characterized by scanning electron microscopy (SEM), X-ray powder diffraction (XRPD), Fourier transform infrared spectroscopy (FTIR) spectroscopy and elemental analyses. The single crystal X-ray data of compound 1 imply that the Pb ion is seven coordinated. The thermal stability of compound 1 has been studied by thermogravimetric (TG) and differential scanning calorimetry (DSC). The role of temperature, reaction time and ultrasound irradiation power on the size and morphfology of the nano-structured compound obtained from 1, have been investigated. Results indicate that an increase of temperature and sonication power and a decrease in time reaction led to a decrease of particle size

    A copper(II) zig-zag metal-organic coordination polymer : synthesis, crystal structure, topology study, hirshfeld surface analysis and survey different conditions on morphology of a novel nano structure [Cu(L)(SCN)(H2O)2]n.2H2O

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    One copper(II) coordination polymer compound [Cu(L)(SCN)(HO)].2HO (1) where L stand for 2-pyridinecarboxylic acid, was synthesized following two different experimental methods, branch tube and sonochemical irradiation nano methods. Independently of the methodology used, the same crystalline phase is obtained for each compound. Single crystal X-ray analyses on compound 1 showed that Cu ions are 6-coordinated. Additionally, H-bonds incorporate the zig-zag chains in 1 into 2D (along (1,1,0) direction) frameworks. Topological analysis shows that the compound 1 is 2C1 net. Hirshfeld surface analysis of compound 1 was studied. Also, theoretical and experimental morphology were studied. The thermal stability of compound 1 was studied by thermal gravimetric. Finally, the role of reaction time and temperature on growth and final morphology of the structures obtained by sonochemical irradiation are investigated. The results indicated that particle size was reduced with increasing sonication power, temperature, sonication time and decreasing concentration of reactant
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