Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

The reaction between dipyriamethyrin and copper(II) acetate [Cu(OAc)] afforded what is, to our knowledge, the first transition metal-dipyriamethyrin complex. Molecular and electronic characterization of this binuclear Cu(II) complex via EPR, UV-vis, and single crystal X-ray diffraction analysis revealed marked differences between the present constructs and previously reported binuclear copper(II) hexaphyrin species. UV-vis titration analyses provided evidence for a homotropic positive allosteric effect, wherein the binuclear species is formed without significant intermediacy of a monomeric complex.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7145289PMC
http://dx.doi.org/10.3390/molecules25061446DOI Listing

Publication Analysis

Top Keywords

characterization binuclear
8
synthesis characterization
4
binuclear
4
binuclear copperii-dipyriamethyrin
4
complex
4
copperii-dipyriamethyrin complex
4
complex [cudipyriamethyrinμ-11-acetato]
4
[cudipyriamethyrinμ-11-acetato] reaction
4
reaction dipyriamethyrin
4
dipyriamethyrin copperii
4

Similar Publications

Two new Schiff base ligands (L1 and L2) were synthesized by condensing thiocarbohydrazide (TCH) with o-anisaldehyde or p-anisaldehyde in ethanol. Their mono- and bi-nuclear complexes with Sn(II), Zn(II), and Fe(II) were prepared for potential fluorescence and biological applications. Characterization was performed using FT-IR, NMR, UV-Vis spectroscopy, mass spectrometry, molar conductance, TGA, X-ray diffraction and SEM.

View Article and Find Full Text PDF

Borane-functionalized heteroscorpionate copper complexes as catalysts for azide-alkyne cycloaddition.

Dalton Trans

August 2025

Centro de Química Estrutural, Departamento de Engenharia Química, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais 1, 1000-049 Lisboa, Portugal.

In this work, new copper(I) complexes of borane-functionalized bis(3,5-dimethylpyrazolyl)methane ligands were synthesized, characterized and used as catalysts for the cycloaddition of phenylacetylene and azides. Reaction of the allylated bis(3,5-dimethylpyrazolyl)methane proligand (La) with CuCl or [Cu(NCMe)]BF gave rise to the neutral copper chloride complex [(La)CuCl] (1a) or the binuclear cationic copper complex [(La)Cu(NCMe)]2(BF4)2 (2a2), respectively. The same reactions using a borane-functionalized bis(3,5-dimethylpyrazolyl)methane proligand (Lb) led to the isolation of complexes [(Lb)CuCl] (1b) and [(Lb)Cu(NCMe)2]BF4 (2b).

View Article and Find Full Text PDF

Selective hydrogenation of CO into methanol offers an ideal route for the utilization of greenhouse gas, but it remains a great challenge to be carried out under mild conditions due to the intrinsic chemical stability of CO. Here, we report sulfur-bridged cooperative molybdenum binuclear sites anchored on covalent triazine frameworks (denoted as Mo-S-Mo/CTF), as highly efficient active sites for CO hydrogenation to methanol at room temperature. Under near-ambient conditions (30 °C, 0.

View Article and Find Full Text PDF

DUF3328 is a protein family widely found in fungal natural product biosynthesis pathways. Although DUF3328 proteins have long been implicated in diverse modifications of inert C(sp)─H bonds, including halogenation, hydroxylation, and macrocyclization, the biochemical properties and catalytic mechanisms of DUF3328 proteins remain elusive. Here, we report the characterization of the DUF3328 protein CctR, which catalyzes C(sp)─H hydroxylation of fungal cyclic peptide cyclochlorotine.

View Article and Find Full Text PDF

NHC-containing compounds are well known for their diverse and promising bioactivities. Incorporation of a metal center into a heterocyclic framework can significantly enhance the bioactivity, leading to improved efficiency. In this scenario, three new bi-imidazolium salts (ZS1-ZS3) and their respective organoselenium compounds (ZC4-ZC6) were synthesized and characterized using various techniques, including UV-visible, FTIR and FT-NMR (H and C) spectroscopy.

View Article and Find Full Text PDF