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Facile preparation, mechanochromic luminescence and excitation wavelength-dependent emission of tetra(1-benzo[]imidazol-2-yl)ethene Zn(II) complexes and their applications.
Dalton Trans
January 2025
Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, P. R. China.
Nowadays, benzimidazole and its derivatives are widely assembled into multifunctional materials with various properties such as mechanochromism, photochromism, thermochromism and electrochromism. Herein, two novel zinc(II) coordination compounds, [Zn(L)Br]·2HO (1) and [Zn(L)Cl]·2HO (2) (L = tetra(1-benzo[]imidazol-2-yl)ethene), have been constructed one-pot facile synthesis from bis(1-benzo[]imidazol-2-yl)methane (L) and zinc(II) salts. The ligand L with a CC double bond was formed by C-C coupling of two sp-C atoms of L in solvothermal synthesis, which provides a new strategy to generate the conjugation system conveniently.
View Article and Find Full Text PDFSelf-healing behavior of metallopolymers in complex.
Chemistry
January 2025
Friedrich-Schiller-Universität Jena: Friedrich-Schiller-Universitat Jena, Laboratory of Organic and Macromolecular Chemistry, GERMANY.
This current study focusses on the investigation of the self-healing abilities of metallopolymers containing different kinds of metal complexes, which were processed by direct digital light processing (DLP) based three-dimensional (3D) printing. For this purpose, 2‑phenoxyethyl acrylate is mixed with ligand-containing monomers either based on triphenylmethyl(trt)-histidine or terpyridine, respectively. Either zinc(II) or nickel(II) salts are successfully applied for a complexation of the ligand monomers in solution and, subsequently, photopolymerization is performed.
View Article and Find Full Text PDFConformational versatility among crystalline solids of L-phenylalanine derivatives.
Acta Crystallogr C Struct Chem
February 2025
Departamento de Química Inorgánica, Analítica y Química Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Intendente Güiraldes 2160, Piso 3, Ciudad Universitaria, C1428EGA Buenos Aires, Argentina.
In this study, we present a new N-derivative of L-phenylalanine with 2-naphthaldehyde (PN), obtained by the Schiff base formation procedure and its subsequent reduction. This compound was crystallized as a zwitterion {2-[(naphthalen-2-ylmethyl)azaniumyl]-3-phenylpropanoate, CHNO}, as an anion in a sodium salt (catena-poly[[diaquasodium(I)-di-μ-aqua] 2-[(naphthalen-2-ylmethyl)amino]-3-phenylpropanoate monohydrate], {[Na(HO)](CHNO)·HO}), as a cation in a chloride salt [(1-carboxy-2-phenylethyl)(naphthalen-2-ylmethyl)azanium chloride acetic acid monosolvate, CHNO·Cl·CHCOOH], and additionally acting as a ligand in the pentacoordinated zinc compound aquabis{2-[(naphthalen-2-ylmethyl)amino]-3-phenylpropanoato-κO}zinc(II), [Zn(CHNO)(HO)] or [Zn(PN)(HO)], denoted (PN-Zn), with the amino acid derivative in its carboxylate form.
View Article and Find Full Text PDFMulticationic ruthenium phthalocyanines as photosensitizers for photodynamic inactivation of multiresistant microbes.
Eur J Med Chem
December 2024
Departamento de Química Orgánica, Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain; Institute for Advanced Research in Chemical Sciences (IAdChem), Universidad Autónoma de Madrid, Cantoblanco, 28049, Madrid, Spain. Electronic address:
Four photosensitizers PS1a-PS4a consisting in multicationic ruthenium(II) phthalocyanines (RuPcs) have been evaluated in photodynamic inactivation (PDI) of multiresistant microorganisms. The RuPcs, bearing from 4 to 12 terminal ammonium salts, have been designed to target the microorganisms cytoplasmic cell membrane and display high singlet oxygen quantum yields. In addition, PS3a and PS4a were conceived to exhibit multi-target localization by endowing them with amphiphilic character, using two different structural approaches.
View Article and Find Full Text PDFSyntheses, structures and anti-cancer activities of Cu and Zn complexes containing 1,1'-[(3-fluoro-phen-yl)methyl-ene]bis-[3-(3-fluoro-phen-yl)imidazo[1,5-]pyridine].
Acta Crystallogr E Crystallogr Commun
January 2025
Department of Chemistry, KU Leuven, Biomolecular Architecture, Celestijnenlaan 200F, Leuven (Heverlee), B-3001, Belgium.
Two novel complexes, [Cu()Cl] and [Zn()Cl], were synthesized from 1,1'-[(3-fluoro-phen-yl)methyl-ene]bis-[3-(3-fluoro-phen-yl)imidazo[1,5-]pyridine] (), and copper(II) and zinc(II) chloride, respectively. The structures of these complexes were confirmed using ESI-MS, IR and H NMR spectra. The results reveal mononuclear structures in which the central metal atoms are coordinated by two N atoms from the imidazole rings and two Cl ligands.
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