Comparative Evaluation of Bioefficiency and Photocatalytic Activity of Green Synthesized Bismuth Oxide Nanoparticles Using Three Different Leaf Extracts.

Nanotechnology has emerged as a promising method for wastewater recycling. In this line, the current study emphasizes the leaf-extract-mediated biosynthesis of bismuth oxide nanostructures (BiONPs) using three different plants, namely (Creeping Coldenia), (Lemon), and (Curry) through a greener approach and evaluates their biological properties as well as photocatalytic performance for the first time. As-synthesized BiONPs were physiochemically characterized using UV-visible spectroscopy, Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), scanning electron microscopy (SEM), and high-resolution transmission electron microscopy (HRTEM) with energy dispersive X-ray analysis (EDAX).

Sunlight-assisted degradation of textile pollutants and phytotoxicity evaluation using mesoporous ZnO/g-CN catalyst.

Accessibility of adequate safe and fresh water for human consumption is one of the most significant issues throughout the world and extensive research is being undertaken to resolve it. Nanotechnology is now an outstanding medium for water treatment and remediation from microorganisms and organic dyes, as compared to conventional treatment methods. For this task graphitic carbon nitride (g-CN) is a potential nanomaterial for environmental remediation, but its photogenerated charge carrier recombination rate restricts its use in practical applications.

Molecular structure, spectroscopic (FT-IR, FT-Raman), NBO analysis of N,N'-diphenyl-6-piperidin-1-yl-[1,3,5]-triazine-2,4-diamine.

In the present work, we have synthesized and reported a combined experimental and theoretical study on the molecular structure, vibrational spectra and HOMO-LUMO analysis of N,N'-diphenyl-6-piperidin-1-yl-[1,3,5]-triazine-2,4-diamine (C20N6H22). The FT-IR and FT-Raman spectra of N,N'-diphenyl-6-piperidin-1-yl-[1,3,5]-triazine-2,4-diamine were recorded. The molecular geometry, harmonic vibrational wavenumbers and bonding features of the title molecule in the ground-state have been calculated by using the density functional B3LYP method with 6-31G(d) as basis set.

Synthesis and potential cytotoxic activity of some new benzoxazoles, imidazoles, benzimidazoles and tetrazoles.

2 The present work deals with the synthesis of some novel heterocyclic compounds such as benzoxazoles , 7, 13 and 19, imidazoles 3, 8, 14 and 20, benzimidazoles 4, 9, 15 and 21, and tetrazoles 10, 16, and 22. The synthesized compounds were characterized by IR, 1H NMR, mass spectrometry and elemental analysis. The compounds were evaluated for cytotoxicity against human cancer cell lines such as MCF-7 (breast cancer) and HT-29 (colon cancer) by the MTT assay method.

N-[2-(3,4-Dimeth-oxy-phenyl)eth-yl]-N-methyl-naphthalene-1-sulfonamide.

In the title compound, C(21)H(23)NO(4)S, the dihedral angle between the naphthalene residue and the benzene ring is 7.66 (3)°. In the molecule, there are some short C-H⋯O interactions.

N-[2-(3,4-Dimeth-oxy-phen-yl)eth-yl]-N-methyl-benzene-sulfonamide.

In the title compound, C(17)H(21)NO(4)S, the phenyl and dimeth-oxy-phenyl rings are almost perpendicular to each other, making a dihedral angle of 82.57 (5)°. The structure is stabilized by inter-molecular C-H⋯O inter-actions and the packing is further enhanced by C-H ⋯π inter-actions.

N-[2-(3,4-Dimeth-oxy-phen-yl)eth-yl]-N,4-dimethyl-benzene-sulfonamide.

In the title compound, C(18)H(23)NO(4)S, the dihedral angle between the two aromatic rings is 29.14 (7)°. The S atom has a distorted tetra-hedral geometry [106.

2-(4-Bromo-phen-yl)-3-(4-hy-droxy-phen-yl)-1,3-thia-zolidin-4-one.

In the title compound, C(15)H(12)BrNO(2)S, the dihedral angle between the two aromatic rings is 87.81 (8)°. The five-membered thia-zolidine ring has an envelope conformation, with the S atom displaced by 0.

2,4-Bis(morpholin-4-yl)-6-phen-oxy-1,3,5-triazine.

In the title compound, C(17)H(21)N(5)O(3), the dihedral angle between the triazine and the phenyl ring is 80.31 (11)°. One of the morpholine rings is disordered over two orientations with site occupancies of 0.

2-Chloro-4,6-bis-(piperidin-1-yl)-1,3,5-triazine.

The title compound, C(13)H(20)ClN(5), crystallizes with two mol-ecules in the asymmetric unit. The piperidine rings in both mol-ecules adopt chair conformations. Weak π-π inter-actions [centroid-centroid distance = 3.

(E)-4-[(4-Bromo-benzyl-idene)amino]phenol.

In the title compound, C(13)H(10)BrNO, the dihedral angle between the benzene rings is 35.20 (8)°. In the crystal, mol-ecules are linked by O-H⋯N hydrogen bonds, forming a zigzag chain along the a axis.

N-(5-Bromo-2-chloro-benz-yl)-N-cyclo-propyl-naphthalene-2-sulfonamide.

In the title compound, C(20)H(17)BrClNO(2)S, the dihedral angle between the benzene ring and the naphthalene plane is 8.95 (8)°. The crystal packing is stabilized by weak inter-molecular C-H⋯O, C-H⋯Cl and π-π [centroid-centroid distance = 3.

4-Bromo-3-{N-[2-(3,4-dimethoxy-phen-yl)eth-yl]-N-methyl-sulfamo-yl}-5-methyl-benzoic acid monohydrate.

In the title compound, C(19)H(22)BrNO(6)S·H(2)O, the dihedral angle between the planes of the two benzene rings is 3.1 (1)°. These rings are stacked over one another with their centroids separated by 3.

2,4-Dichloro-N-phenethyl-benzene-sulfonamide.

In the title compound, C(14)H(13)Cl(2)NO(2)S, the dihedral angle between the phenyl ring and the benzene ring is 69.94 (9)°. Two short intra-molecular C-H⋯O contacts occur and a weak inter-molecular C-H⋯π inter-action is seen in the crystal.

6-Methyl-2,7-diphenyl-1,4-diazepan-5-one.

The title compound, C(18)H(20)N(2)O, crystallizes with two mol-ecules in the asymmetric unit. The seven-membered ring in both mol-ecules adopts a distorted chair conformation. The dihedral angles between the phenyl rings are 43.

3-Amino-phenyl naphthalene-1-sulfonate.

In the title compound, C(16)H(13)NO(3)S, the plane of the naphthalene ring system forms a dihedral angle of 64.66 (10)° with the benzene ring. The mol-ecular structure is stabilized by weak intra-molecular C-H⋯O inter-actions and the crystal packing is stabilized by weak inter-molecular N-H⋯O and C-H⋯O inter-actions and by π-π stacking inter-actions of the inversion-related naphthalene units [centroid-centroid distance of 3.

2-Phenyl-4H-3,1-benzoxazin-4-one.

The title mol-ecule, C(14)H(9)NO(2), is nearly planar with a dihedral angle of 3.72 (4)° beteewn the plane of the phenyl ring and the 3,1-benzoxazin-4-one fragment. The mol-ecules are arranged into stacks parallel to the b axis via π-π stacking inter-actions [centroid-centroid distance = 4.

Phenyl naphthalene-2-sulfonate.

In the crystal structure of the title compound, C(16)H(12)O(3)S, the dihedral angle between the naphthalene ring system and the phenyl ring is 65.21 (3)°. The mol-ecules are linked by inter-molecular C-H⋯O hydrogen bonds, forming a chain along the a axis.

1-Naphthyl 9H-carbazole-4-sulfonate.

In the title compound, C(22)H(15)NO(3)S, the plane of the carbazole ring system forms a dihedral angle of 65.06 (4)° with the naphthalene ring system. In the crystal structure, a weak intra-molecular C-H⋯O inter-action is observed between the naphthalene ring system and the sulfonate group.

4-Amino-phenyl naphthalene-1-sulfonate.

In the title compound, C(16)H(13)NO(3)S, the plane of the amino-benzene ring makes a dihedral angle of 61.04 (6)° with the naphthalene ring system. Both ring systems form weak intra-molecular C-H⋯O hydrogen bonds with the sulfonate group.

4-Nitro-phenyl naphthalene-1-sulfonate.

In the crystal structure of the title compound, C(16)H(11)NO(5)S, the plane of the naphthalene ring system forms a dihedral angle of 63.39 (8)° with the benzene ring. The nitro group makes a dihedral angle of 10.