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The preparation of one monomeric [MoO2(L)](acac)2 having a Schiff base came by condensation of di-2-furanylethanedione with 2,3-diaminotoluene and 4 different complexes having formulation [MoO2(ML)](acac)2, from the result of [MoO2(L)](acac)2 with 1,3-diketones will be described with this paper. The preparation of each of these five MoO2 (VI) complexes was symbolized by thermal studies, UV-Vis, IR, elemental analyses, NMR, and molar conductance. The coordination number of molybdenum metal will be six. All 5 complexes of MoO2(VI) have a geometry of distorted octahedral arrangement. The octahedral arrangement of Mo-metal in prepared complexes is finished by 2 oxo O-atoms and 4 N-atoms from the synthesized ligand. All of the synthesized complexes demonstrated moderate action against S. aureus and S. typhi. The progression inside the antibacterial task being defined on the thought of chelation speculation.

The complex of cadmium perchlorate, [Cd(HMTA)2(H2O)4](ClO4)2•2H2O was synthesized by the reaction with hexamethylenetetramine (HMTA). C, H, N analyses, FT-IR, and X-ray crystallography were used to characterize the obtained complex. TG in the static air, simultaneous thermogravimetry-derivative thermogravimetry (TG-DTG), and differential scanning calorimetry (DSC) in streaming nitrogen atmosphere were evolved for thermal decay of prepared cadmium complex. To evaluate the reaction with quick warming, explosion delay measurements were attempted. The model-free isoconversional and model-fitting kinetic methodologies were applied to isothermal TG data for kinetic examination of the complex's thermal decomposition. At higher temperatures, the complex explodes to synthesize highly thermally stable residue most closely resembles cadmium oxide.

Parent dioxomolybdenum(VI) complex formation by the reaction of MoO2(acac)2 with Schiff base tetradentate ligand, described in this paper. Schiff base tetradentate ligand [H2NCH2CH2 N=CC4H3S-CC4H3S=NCH2CH2NH2] obtained from the condensation of di-2-thienylethanedione with 1,2-diaminoethane. Macrocyclic molybdenum complexes were obtained from the cyclization of a synthesized complex with different 1,3 – diketones. The general formula of parent molybdenum complex is given as [MoO2( H2NCH2CH2 N=CC4H3S – CC4H3S=N CH2CH2NH2)](acac)2 and for macrocyclic molybdenum complex is [MoO2{(CH2CH2 N=CC4H3S – CC4H3S=N CH2CH2) N=C(R)CH2C(R’)=N}](acac)2. Ligand and all molybdenum complexes were characterized by elemental analyses(EA), molar conductivity(ΛM), ultraviolet(UV-Vis), and infrared (IR) spectral studies. The distorted octahedral geometry of element Mo in the parent as well as in macrocyclic molybdenum complexes is completed by two oxo O-atoms, four N-atoms from derived Schiff ligand.

Metal complexes synthesized from Schiff bases and furthermore Schiff bases are versatile in nature. Such types of compounds were prepared from the condensation of an amino compound with carbonyl compounds (aldehyde or ketone) during which the carbonyl group is replaced by an imine or azomethine group. Schiff bases and their derivatives are widely employed in industries, polymers, dyes and medicative and pharmaceutical fields and additionally exhibit biological activities like antibacterial, antifungal, anti-inflammatory, antimalarial, antiviral, and antipyretic properties. Many Schiff base metal complexes exhibit glorious catalytic activities in numerous mechanisms. Their several applications in homogenous and heterogeneous catalysis were according troughout last decade. Several Schiff base complexes were helpful for their application as catalysts in reactions involving at high temperatures because of the high thermal and moisture stabilities. This text totally based on literature review with examples of the most promising applied Schiff bases and their complexes in several areas, summarizing the applications of Schiff bases and their numerous derivatives and complexes.

Copper perchlorate complex with 4-aminopyridine and water has been prepared with molecular formula [Hg2(C5H6N2)3(ClO4)4].2H2O. It has been characterised by elemental analysis, thermogravimetry, and IR spectroscopic data. Thermal behaviours have been studied by thermogravimetry (TG) in static air and simultaneous thermogravimetry-derivative thermogravimetry analysis (TG-DTG) in flowing nitrogen atmosphere. Complex decomposes in four steps (less resolved). Difference in decomposition under air and inert atmosphere has been also discussed. Kinetics of thermal decomposition has been investigated using isothermal TG data recorded at five different temperatures applying model-fitting as well as isoconversional method on these data. Model-fitting methods have yielded a single value of activation energy whereas isoconversional method has given different values of activation energy for each extent of conversion, α. Response of synthesized complex towards rapid heating has been investigated by recording explosion delay time (DE) at five different temperatures and using these data kinetics of explosion has been analysed. Activation energy for explosion has been also calculated.

1-Aryl-2-mercapto-4-(phenyl/p-chlorophenyl)imidazoles (Ia-j) were condensed with monochloroacetic acid to give 1-aryl-4-(phenyl/p-chlorophenyl)imidazo-2-mercaptoacetic acid (IIa-j). These acids were subsequently cyclized with an acetic anhydride-pyridine mixture to give a new fused ring mesoionic 1-aryl-4-(phenyl/p-chlorophenyl)imidazo[2,1-b]thiazol-1-3-ones (IIIa-j). These compounds possess AID50 values ranging from 500 to 1000 mg kg-1, inhibit monoamineoxidase (32-68%), and succinate dehydrogenase (28-55%) in vitro at a concentration of 2×10-4 M, and provide 20-60% protection against pentylenetetrazole induced convulsions in mice.

1-Aryl-2-mercapto-4-(phenyl/p-chlorophenyl)-imidazoles (Ia-1) were condensed with 2-chloromethyl benzimidazole (II) in presence of sodium hydroxide in ethanol to get 1-aryl-2-thiomethylene benzimidazol-2-yl-4-(phenyl/p-chlorophenyl)-imidazoles (IIIa-1). These compounds (IIIa-1) were subsequently oxidised by hydrogen peroxide to get 1-aryl-2-sulphono-[benzimidazol-2-yl]-methyl-4 and (phenyl/p-chlorophenyl)-imidazoles (Iva-1). All the compounds (IIIa-1) and (Iva-1) exhibited central nervous system depressant action on albino mice. All the compounds are non-toxic and possess some sedative activity.

According to what mention in research paper, the reaction of [MoO 2 (L)](acac) 2 with 1,3-diketones gives the formation of 1 MoO 2 (VI) complex of formulation [MoO 2 (L)](acac) 2 with a Schiff base, acquire from condensation of di-2-thienylethanedione with 2,3-diaminotoluene and four new complexes having formula [MoO 2 (ML)](acac) 2 . The each of the five dioxomolybdenum(VI) complexes synthesized were represented by thermal studies, elemental analyses, UV-Vis, molar conductance, IR and NMR and. The molybdenum metal has coordination number of 6. Each of the dioxomolybdenum(VI) complexes have geometry of octahedral arrangement. Distorted octahedral environment exist surrounding to molybdenum element in formed MoO 2 (VI) complexes. The ligand geometry was completed by two oxo O-atoms and four N-atoms. The synthesized complexes were show moderate activity versus S. aureus and S. typhi. The advancement inside the antibacterial activity being defined on the idea of chelation speculation.

Synthesis of some new dioxomolybdenum(VI) complexes having general formula [MoO2(mac)](acac)2, (where mac = tetraazamacrocyclic ligands derived from condensation of furil with 1,2-diaminobenzene or 2,3-diaminopyridine and their reaction with ?-diketones) using dioxometal ion as kinetic template are reported. The prepared complexes have been characterized by molar conductance, elemental analyses, infrared and electronic data. The spectral data indicate that ligands act as tetradentate chelating agent. Due to their biological relevance, molybdenum catalyzed oxygen transfer reactions have great interest. All the dioxomolybdenum(VI) complexes have octahedral geometry with six coordination.

Dioxomolybdenum(VI) complexes [MoO2(mac)](acac)2 (where mac = tetraazamacrocyclic ligands derived from condensation of thenil with 1,2-diaminobenzene or 2,3-diaminopyridine and their reaction with β-diketones) have been prepared using dioxometal ion as kinetic template. Tentative structures of the complexes have been proposed on the basis of elemental analysis, infrared, and electronic data. All the dioxomolybdenum(VI) complexes are six-coordinate octahedral ones.

A series of oxovanadium(IV) complexes of the type [VO(mac)]SO4(where mac = tetraazamacrocyclic ligands derived from condensation of 4,4,4-trifluro-1-(2-furyl)-1,3-butanedione or 4,4,4-trifluro-1-(2-thenyl)-1,3-butanedione withp-phenylenediamine and their reaction withβ-diketones) have been prepared using oxometal ion of vanadium as kinetic template. These complexes have been ascertained by electrical conductance, magnetic moment, elemental analyses, infrared, e.s.r. and electronic spectral data. All the oxovanadium(IV) complexes are five-coordinate ones.

Oxovanadium(IV) complexes of the type [VO(mac)]SO4(where mac = tetraaza macrocyclic ligands derived by condensation of thenil with 1,4-diaminobenzene or 3,4-diaminopyridine and their reaction withβ-diketones) have been prepared using vanadyl ion as kinetic template. The prepared macrocyclic complexes were characterized by elemental analyses, molar conductance, magnetic moments, and infrared, electronic, and electron spin resonance data. From the spectroscopic studies, five-coordinate square-pyramidal geometry for the VO2+complexes have been proposed wherein derived ligands act as tetradentate chelating agents.

Due to their biological relevance, molybdenum catalyzed oxygen transfer reactions have great interest. With this view, some dioxomolybdenum(VI) complexes with general formula [MoO2(mac)](acac)2, (where mac = tetraazamacrocyclic ligands derived from condensation of furil with 1,2-ethanediamine or 1,3-propanediamine and their reaction with β-diketones) have been synthesized using dioxometal ion as kinetic template. The prepared complexes have been characterized by electrical conductance, elemental analyses, infrared and electronic data. All the dioxomoly-bdenum(VI) complexes have octahedral geometry with six coordination.