The beta-diketone 3-(4-cyanophenyl)pentane-2,4-dione crystallizes as the enol tautomer 4-(2-hydroxy-4-oxopent-2-en-3-yl)benzonitrile, C(12)H(11)NO(2), (I), with an intramolecular O-H.O hydrogen bond [O.O = 2.456 (2) A]. Reaction of (I) with copper acetate monohydrate in the presence of triethylamine leads to the formation of the copper(II) complex bis[3-(4-cyanophenyl)pentane-2,4-dionato-kappa(2)O,O]copper(II), [Cu(C(12)H(10)NO(2))(2)], (II). In the structure of (II), the Cu atom is coordinated by four beta-diketonate O atoms in a slightly distorted square-planar geometry, with Cu-O distances in the range 1.8946 (11)-1.9092 (11) A. The nitrile moieties in (II) make it a candidate for reaction with other metal ions to produce supramolecular structures.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1107/S0108270104002938 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Synthesis, Characterization, Anti-nematocidal, and Computational Study of Copper(II) Complex Derived from Fluoro-substituted Schiff base Ligand.
Chem Biodivers
January 2025
Al-Azhar University - Assiut Branch, Pharmacology, Assiut, Cairo, EGYPT.
Herein, Schiff base was synthesized via reaction between 2-bromo-4-(trifluoromethoxy)aniline and 2-hydroxybenzaldehyde. The ligand was reacted with Cu(II) salt to obtain complex. The compounds were characterization using various techniques.
View Article and Find Full Text PDFA Redox-Active Copper Complex for Orthogonal Detection of Homocysteine Involving Fluorescence and Electrochemical Techniques.
Small
January 2025
Analytical & Environmental Science Division and Centralized Instrument Facility, CSIR-CSMCRI, G. B. Marg, Bhavnagar, 364002, India.
The present work reports the synthesis, characterization, and excited state photo-physical studies of two copper(II) compounds, 1 & 2, which show interference-free emission with homocysteine (Hcy). Cu(II) complexes offer an orthogonal detection strategy involving fluorescence and electrochemical methods, paving the way for improved point-of-care diagnostics and early cardiovascular diseases intervention. The reduction-induced emission enhancement (RIEE) of Cu complexes facilitates the fluorescence measurement of Hcy at physiological pH.
View Article and Find Full Text PDFSynthesis, crystal structure, characterization and antimicrobial activities of ternary chiral mononuclear Schiff base copper(II) complexes.
J Trace Elem Med Biol
January 2025
Center for Global Health Research (CGHR), Saveetha Medical College, Saveetha Institute of Medical and Technical Sciences (SIMATS), Saveetha University, Chennai, India. Electronic address:
[CuL(tmen)] is a sequence of four ternary mononuclear Schiff base copper(II) complexes that are derived from L-valine, suitable 5'-substituted-2'-hydroxyacetophenones (where the substituents are -Cl for L, -Me for L, -OMe for L, and -H for L), and tmen (where tmen-N,N,N',N' tetramethyl ethylenediamine). Without isolating the Schiff base ligand or producing any other intermediate products, all of the complexes were synthesised. These compounds were identified using elemental analysis, molar conductance, UV-Vis, FTIR, EPR, VSM-RT, and CD spectra.
View Article and Find Full Text PDFβ-Diketonate Coordination: Vibrational Properties, Electronic Structure, Molecular Topology, and Intramolecular Interactions. Beryllium(II), Copper(II), and Lead(II) as Study Cases.
J Phys Chem A
January 2025
Novosibirsk State University, Pirogov str. 1, Novosibirsk 630090, Russian Federation.
Nine metal complexes formed by three symmetric β-diketonates (, acetylacetonate (), 1,1,1,3,3,3-hexafluoro-acetylacetonate (), and 2,2,6,6-tetramethylheptane-3,5-dionate ()) and three metal ions (with three different coordination geometries, , Be - tetrahedral, Cu - square planar, and Pb - "swing" square pyramidal) were investigated. The study combines structural analyses, vibrational spectroscopic techniques, and quantum chemical calculations with the aim of bridging crystal structure, electronic structure, molecular topology, and far-infrared (FIR) spectroscopic characteristics. The effect of intramolecular interactions on the structural, electronic, and spectroscopic features is the center of this study.
View Article and Find Full Text PDFUnusual variability of isomers in copper(II) complexes with 1,8-bis(2-hydroxybenzyl)-cyclam.
Dalton Trans
January 2025
Czech Academy of Sciences, J. Heyrovsky Institute of Physical Chemistry, Dolejškova 2155/3, 182 23 Prague 8, Czech Republic.
Copper isotopes and their complexes are intensively studied due to their high potential for applications in radiodiagnosis and radiotherapy. Here, we study the Cu complex of 1,8-bis(2-hydroxybenzyl)-cyclam (HL), which forms an unexpected variety of isomers differing in the mutual orientation of the substituents on the cyclam nitrogen atoms, the protonation of the phenolate pendant, and the ligand denticity. The interconversion of the isomers is rather slow, which made the isolation, identification and investigation of some of the individual species possible.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!