Impact of Diverse Parameters on the Physicochemical Characteristics of Green-Synthesized Zinc Oxide-Copper Oxide Nanocomposites Derived from an Aqueous Extract of L. Leaf.

Compared to conventional metal oxide nanoparticles, metal oxide nanocomposites have demonstrated significantly enhanced efficiency in various applications. In this study, we aimed to synthesize zinc oxide-copper oxide nanocomposites (ZnO-CuO NCs) using a green synthesis approach. The synthesis involved mixing 4 g of Zn(NO)·6HO with different concentrations of mangosteen () leaf extract (0.

A comprehensive study on the photophysical and non-linear optical properties of thienyl-chalcone derivatives.

The impact of the substitutional position of the chorine atom on the non-linear optical (NLO) response of chalcone derivatives is reported in this paper. Two thienyl-chalcone derivatives, ()-3-(2,4-dichloro-phenyl)-1-(2,5-dichlorothiophen-3-yl)prop-2-en-1-one (3A25D2) and ()-3-(2,6-dichloro-phenyl)-1-(2,5-dichlorothiophen-3-yl)prop-2-en-1-one (3A25D4), are synthesized, and their crystal structures were determined by single-crystal X-ray diffraction analysis. The photophysical and third-order NLO properties of 3A25D2 and 3A25D4 were investigated experimentally and computationally.

Chiral Polymorphic Hydrazine-based Asymmetric Liquid Crystal Trimers with Resorcinol as Linking Group.

Introduction: This is the first report on chiral polymorphic hydrazine-based asymmetric liquid crystal trimers, 1-[4'-(4''-(5-Cholesteryloxy)carbonyl)butyloxy]-3-[N-benzylideneoxy-N'-(4'''-decyloxybenzylidene) hydrazine] butyloxybenzenes, and 1-[4'-(4''-(10-cholesteryloxy)carbonyl)nonyloxy]-3-[N-benzylideneoxy-N'-(4'''- decyloxybenzylidene)hydrazine]butyloxybenzenes., in which the hydrazine and cholesterol arms were connected via two flexible methylene spacers (n = 3-12 units and m = 4 or 9, respectively) to the central resorcinol core.

Materials And Methods: FT-IR, 1D and 2D NMR spectroscopy, and CHN microanalysis were used to elucidate the structures of the trimers.

Enantiomeric pairs of ternary copper(ii) complexes and their aldol-type condensation products: synthesis, characterization, and anticancer and epigenetic properties.

Chiral enantiomers [Cu(phen)(l-ser)(H2O)]NO31 and [Cu(phen)(d-ser)(H2O)]NO32 (ser = serinato) underwent aldol-type condensation with formaldehyde, with retention of chirality, to yield their respective enantiomeric ternary copper(ii) complexes, viz. l- and d-[Cu(phen)(OCA)(H2O)]NO3·xH2O (3 and 4; phen = 1,10-phenanthroline; OCA = oxazolidine-4-carboxylate; x = 1/2, 0-2) respectively. These chiral complexes were characterized by FTIR, elemental analysis, circular dichroism, UV-visible spectroscopy, fluorescence spectroscopy (FL), molar conductivity measurement, ESI-MS and X-ray crystallography.

Crystal structure and Hirshfeld surface analysis of (2,2')-3,3'-(1,4-phenyl-ene)bis-[1-(2,4-di-fluoro-phen-yl)prop-2-en-1-one].

The asymmetric unit of the title compound, CHFO, comprises of one and a half mol-ecules; the half-mol-ecule is completed by crystallographic inversion symmetry. In the crystal, mol-ecules are linked into a three-dimensional network by C-H⋯F and C-H⋯O hydrogen bonds. Some of the C-H⋯F links are unusually short (< 2.

Steric repulsion and supra-molecular assemblies a two-dimensional plate by C-H⋯O hydrogen bonds in two closely related 2-(benzo-furan-2-yl)-2-oxoethyl benzoates.

2-(Benzo-furan-2-yl)-2-oxoethyl 2-chloro-benzoate, CHClO (I), and 2-(benzo-furan-2-yl)-2-oxoethyl 2-meth-oxy-benzoate, CHO (II), were synthesized under mild conditions. Their chemical and mol-ecular structures were analyzed by spectroscopic and single-crystal X-ray diffraction studies, respectively. These compounds possess different -substituted functional groups on their phenyl rings, thus experiencing extra steric repulsion force within their mol-ecules as the substituent changes from 2-chloro (I) to 2-meth-oxy (II).

Two closely related 2-(benzo-furan-2-yl)-2-oxoethyl benzoates: structural differences and C-H⋯O hydrogen-bonded supra-molecular assemblies.

The compounds 2-(1-benzo-furan-2-yl)-2-oxoethyl 2-nitro-benzoate, CHNO (I), and 2-(1-benzo-furan-2-yl)-2-oxoethyl 2-amino-benzoate, CHNO (II), were synthesized under mild conditions. Their mol-ecular structures were characterized by both spectroscopic and single-crystal X-ray diffraction analysis. The mol-ecular conformations of both title compounds are generally similar.

Three closely related (2,2')-3,3'-(1,4-phenyl-ene)bis-[1-(meth-oxy-phen-yl)prop-2-en-1-ones]: supra-molecular assemblies in one dimension mediated by hydrogen bonding and C-H⋯π inter-actions.

In the title compounds, (2,2')-3,3'-(1,4-phenyl-ene)bis-[1-(2-meth-oxy-phen-yl)prop-2-en-1-one], CHO (I), (2,2')-3,3'-(1,4-phenyl-ene)bis-[1-(3-meth-oxy-phen-yl)prop-2-en-1-one], CHO (II) and (2,2')-3,3'-(1,4-phenyl-ene)bis-[1-(3,4-di-meth-oxy-phen-yl)prop-2-en-1-one], CHO (III), the asymmetric unit consists of a half-mol-ecule, completed by crystallographic inversion symmetry. The dihedral angles between the central and terminal benzene rings are 56.98 (8), 7.

Benzofuranyl Esters: Synthesis, Crystal Structure Determination, Antimicrobial and Antioxidant Activities.

A series of five new 2-(1-benzofuran-2-yl)-2-oxoethyl 4-(un/substituted)benzoates 4(a-e), with the general formula of C₈H₅O(C=O)CH₂O(C=O)C₆H₄X, X = H, Cl, CH₃, OCH₃ or NO₂, was synthesized in high purity and good yield under mild conditions. The synthesized products 4(a-e) were characterized by FTIR, ¹H-, (13)C- and ¹H-(13)C HMQC NMR spectroscopic analysis and their 3D structures were confirmed by single-crystal X-ray diffraction studies. These compounds were screened for their antimicrobial and antioxidant activities.

Synthesis, structural and antioxidant studies of some novel N-ethyl phthalimide esters.

A series of N-ethyl phthalimide esters 4(a-n) were synthesized and characterized by spectroscopic studies. Further, the molecular structure of majority of compounds were analysed by single crystal X-ray diffraction studies. The X-ray analysis revealed the importance of substituents on the crystal stability and molecular packing.

Ternary copper(II)-polypyridyl enantiomers: aldol-type condensation, characterization, DNA-binding recognition, BSA-binding and anticancer property.

Chiral enantiomers [Cu(phen)(L-threo)(H2O)]NO3 1 and [Cu(phen)(D-threo)(H2O)]NO3 2 (threo = threoninate) underwent aldol-type condensation with formaldehyde, with retention of chirality, to yield their respective enantiomeric ternary copper(II) complexes, viz. L- and D-[Cu(phen)(5MeOCA)(H2O)]NO3·xH2O (3 and 4; phen = 1,10-phenanthroline; 5MeOCA = 5-methyloxazolidine-4-carboxylate; x = 0-3) respectively. These chiral complexes were characterized by FTIR, elemental analysis, circular dichroism, UV-Visible spectroscopy, fluorescence spectroscopy (FL), molar conductivity measurement, ESI-MS and X-ray crystallography.

Biological and cytoselective anticancer properties of copper(II)-polypyridyl complexes modulated by auxiliary methylated glycine ligand.

A series of ternary copper(II)-1,10-phenanthroline complexes with glycine and methylated glycine derivatives, [Cu(phen)(aa)(H(2)O)]NO(3)·xH(2)O 1-4 (amino acid (aa): glycine (gly), 1; DL: -alanine (DL: -ala), 2; 2,2-dimethylglycine (C-dmg), 3; sarcosine (sar), 4), were synthesized and characterized by FTIR, elemental analysis, electrospray ionization-mass spectra (ESI-MS), UV-visible spectroscopy and molar conductivity measurement. The determined X-ray crystallographic structures of 2 and 3 show each to consist of distorted square pyramidal [Cu(phen)(aa)(H(2)O)](+) cation, a nitrate counter anion, and with or without lattice water, similar to previously reported structure of [Cu(phen)(gly)(H(2)O)]NO(3)·1½H(2)O. It is found that 1-4 exist as 1:1 electrolytes in aqueous solution, and the cationic copper(II) complexes are at least stable up to 24 h.

2-Amino-3-nitro-benzoic acid.

The title compound, C(7)H(6)N(2)O(4), is approximately planar (r.m.s.

Bis(μ(2)-2-amino-5-nitro-benzoato)bis-(2-amino-5-nitro-benzoato)octa-butyldi-μ(3)-oxido-tetra-tin(IV).

In the title complex, [Sn(4)(C(4)H(9))(8)(C(7)H(5)N(2)O(4))(4)O(2)], all four Sn(IV) atoms are five-coordinated with distorted trigonal-bipyramidal SnC(2)O(3) geometries. Two Sn(IV) atoms are coordin-ated by two butyl groups, one benzoate O atom and two bridging O atoms, whereas the other two Sn(IV) atoms are coordinated by two butyl groups, two benzoate O atoms and a bridging O atom. All the butyl groups are equatorial with respect to the SnO(3) trigonal plane.

Octa-butylbis[μ(2)-4-(diethyl-amino)-benzoato-κO:O']bis-[4-(diethyl-amino)-benzoato-κO]di-μ(3)-oxido-tetra-tin(IV).

The asymmetric unit of the title complex, [Sn(4)(C(4)H(9))(8)(C(11)H(14)NO(2))(4)O(2)], consists of two crystallographically independent half-mol-ecules. The other halves are generated by crystallographic inversion centers. In each tetra-nuclear mol-ecule, both of the two independent Sn atoms are five-coordinated, with distorted trigonal-bipyramidal SnC(2)O(3) geometries.

(4-Chloro-3-nitro-benzoato)triphenyl-tin(IV).

In the title compound, [Sn(C(6)H(5))(3)(C(7)H(3)ClNO(4))], the four-coordinate Sn(IV) atom exists in a distorted tetra-hedral geometry, formed by a monodentate carboxyl-ate group and three phenyl rings. The conformation is stabilized by an intra-molecular C-H⋯O hydrogen bond, which generates an S(5) ring. The aromatic ring of the 4-chloro-3-nitro-benzoate ligand makes dihedral angles of 75.

catena-Poly[[triphenyl-tin(IV)]-μ-5-amino-2-nitro-benzoato-κO:O].

The title compound, [Sn(C(6)H(5))(3)(C(7)H(5)N(2)O(4))](n), forms polymeric chains along [010]. The Sn(IV) ion is five-coordinated in a distorted trigonal-bipyramidal geometry by two monodentate carboxyl-ate groups and three phenyl rings. The axial sites are occupied by the O atoms of two symmetry-related carboxyl-ate groups [O-Sn-O = 170.

(2-Amino-3-nitro-benzoato-κO)triphenyl-tin(IV).

The asymmetric unit of the title compound, [Sn(C(6)H(5))(3)(C(7)H(5)N(2)O(4))], consists of two independent mol-ecules. In each mol-ecule, the four-coordinated Sn(IV) atom exists in a distorted tetra-hedral geometry and two intra-molecular N-H⋯O hydrogen bonds with S(6) ring motifs are present. In one mol-ecule, the benzene ring of the 2-amino-3-nitro-benzoate ligand makes dihedral angles of 42.

(2-Chloro-4-nitro-benzoato)(methanol)triphenyl-tin(IV).

In the title complex, [Sn(C(6)H(5))(3)(C(7)H(3)ClNO(4))(CH(4)O)], the five-coordinate Sn(IV) atom exists in a trigonal-bipyramidal environment, formed by a monodentate carboxyl-ate group, three phenyl rings and a methanol mol-ecule. The axial sites are occupied by the O atoms of the methanol mol-ecule and the carboxyl-ate group, while the equatorial plane is formed by the C atoms of three phenyl rings. The benzene ring of the 2-chloro-4-nitro-benzoate ligand makes dihedral angles of 66.

Octa-butyl-bis-(μ(2)-2-chloro-5-nitro-benzoato)bis-(2-chloro-5-nitro-benzoato)di-μ(3)-oxido-tetra-tin(IV).

The title complex, [Sn(4)(C(4)H(9))(8)(C(7)H(3)ClNO(4))(4)O(2)], is a cluster formed by a crystallographic inversion center around the central Sn(2)O(2) ring. Both of the two independent Sn atoms are five-coordinated, with distorted trigonal-bipyramidal SnC(2)O(3) geometries. One Sn atom is coordinated by two butyl groups, one O atom of the benzoate anion and two bridging O atoms, whereas the other Sn atom is coordinated by two butyl groups, two O atoms of the benzoate anions and a bridging O atom.

Bis(μ(2)-4-amino-3-nitro-benzoato)bis-(4-amino-3-nitro-benzoato)octa-butyldi-μ(3)-oxido-tetra-tin(IV).

The tetranuclear molecules of the title compound, [Sn(4)(C(4)H(9))(8)(C(7)H(5)N(2)O(4))(4)O(2)], reside on a crystallographic inversion center. Both the two independent Sn atoms are five-coordinate, with distorted trigonal-bipyramidal geometries. One Sn atom is coordinated by two O atoms of the carboxyl-ate anions, one bridging O atom and two butyl groups and the other Sn atom is coordinated by an O atom of the carboxyl-ate anion, two bridging O atoms and two butyl groups.

(Methanol-κO)(2-methyl-3-nitro-benzoato-κO)triphenyl-tin(IV).

The five-coordinate Sn atom in the title compound, [Sn(C(6)H(5))(3)(C(8)H(6)NO(4))(CH(3)OH)], exists in a trans-C(3)SnO(2) trigonal-bipyramidal coordination polyhedron of which the O atoms of the methanol mol-ecule and carboxyl-ate group occupy the apical sites. In the crystal, adjacent mol-ecules are linked by inter-molecular O-H⋯O inter-actions, generating a helical hydrogen-bonded chain running along the b axis.

Poly[[aquadi-μ(3)-malonato-hexaphenyl-ditin(IV)] acetone solvate].

The asymmetric unit of the title polymeric complex, {[Sn(2)=(C(6)H(5))(6)(C(3)H(2)O(4))(H(2)O)]·C(3)H(6)O}(n), comprises of two Sn cations, one malonate anion and a non-coordinating acetone solvent mol-ecule. Both crystallographically independent Sn cations are five-coordinated by two O and three C atoms in a distorted trigonal-bipyrimidal geometry. One of the Sn cations is bridged by the malonate units, affording polymeric chains which run along [001].

Octa-n-butyl-1κC,2κC,3κ,4κC-bis-(μ-2,3-dibromo-propionato)-1:2κO:O',3:4κO:O'-bis-(2,3-dibromo-propionato)-1κO,3κO-di-μ(3)-oxido-1:2:4κO:O:O,2:3:4κO:O:O-tetra-tin(IV).

In the centrosymmetric tetra-nuclear title complex, [Sn(4)(C(4)H(9))(8)(C(3)H(3)Br(2)O(2))(4)O(2)], one of the two independent Sn atoms is five-coordinated by one O atom of the carboxyl-ate anion, two bridging O atoms and two n-butyl groups in a C(2)SnO(3) distorted trigonal bipyramidal geometry. The other Sn atom also has a distorted trigonal bipyramidal geometry, being coordinated by two O atoms of two carboxyl-ate anions, one bridging O atom and two butyl groups. An inter-esting feature of the crystal structure is the short Sn⋯O [2.

[3-(Dimethyl-amino)benzoato]triphenyl-tin(IV).

In the title compound, [Sn(C(6)H(5))(3)(C(9)H(10)NO(2))], the Sn atom is coordinated by three phenyl groups and a carboxyl-ate anion in a distorted tetra-hedral geometry. An intra-molecular C-H⋯O inter-action forms an S(7) ring motif. The dihedral angles between the benzoate group and the other three phenyl rings are 76.