AI Article Synopsis
Article Abstract
In the title complex, [PdI(2)(C(8)H(6)N(4))], the Pd(II) ion is four-coordinated in a slightly distorted square-planar environment defined by two pyrimidine N atoms derived from a chelating 2,2'-bipyrimidine (bpym) ligand and two mutually cis iodide anions. The nearly planar bpym ligand [maximum deviation = 0.053 (3) Å] is slightly inclined to the least-squares plane of the PdI(2)N(2) unit [maximum deviation = 0.055 (2) Å], making a dihedral angle of 3.9 (2)°. In the crystal, pairs of complex mol-ecules are assembled by inter-molecular C-H⋯N hydrogen bonds into dimers. Intra-molecular C-H⋯I hydrogen bonds are also observed.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3393225 | PMC |
| http://dx.doi.org/10.1107/S1600536812028292 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Tetravalent Terbium Chelates: Stability Enhancement and Property Tuning.
Precis Chem
December 2023
Department of Chemistry, Southern University of Science and Technology, Shenzhen, Guangdong 518055, China.
Coordination chemistry of rare-earth elements has been dominated by the +3 oxidation state. Complexes with higher-valence lanthanide ions are synthetically challenging but are of fundamental research interest and significance as advanced molecular materials. Herein, four tetravalent terbium complexes (-) of the common formula [Tb(OSiPh)L] (L = ethylene glycol dimethyl ether (DME), 2,2-bipyridine (bpy), 2,2-bipyrimidine (bpym), and 1,10-phenanthroline (phen)) are reported.
View Article and Find Full Text PDFReversible and Turn-On Fluorescence Detection of Phosphate in Aqueous Solution and Living Cell Imaging by Supramolecular Metallacycles with AIE-Active Ligands.
ACS Appl Mater Interfaces
August 2023
Laboratory for Self-Assembly Chemistry, Center of Excellence for Environmental Safety and Biological Effects, Beijing Key Laboratory for Green Catalysis and Separation, Department of Chemistry, Faculty of Environment and Life, Beijing University of Technology, Beijing 100124, China.
Luminescent supramolecular metallacycles have attracted great interest as a new promising class of sensing substrates. In this work, two tetraphenylethene (TPE)-based diimidazole and dipyrazole ligands with the aggregation-induced emission (AIE) feature were designed for the construction of supramolecular tetragonal metallacycles - with two 90° mononuclear [(bpy)M] or dinuclear [(bpy)M] acceptors (bpy = 2,2'-dipyridine; M = Pd, Pt), in which the fluorescence can be quenched to an "off" state due to the ligand-to-metal charge transfer (LMCT). Metallacycle was utilized as a fluorescence sensor for phosphate (PO) detection in aqueous solution by means of disassembly, leading to the release of the ligand.
View Article and Find Full Text PDFAssembling diuranium complexes in different states of charge with a bridging redox-active ligand.
Chem Sci
October 2022
Group of Coordination Chemistry, Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland
Article Synopsis
- Radical-bridged diuranium complexes show promise for high exchange coupling and single molecule magnet behavior but are not commonly found.
- Researchers successfully synthesized radical-bridged diuranium(iv) and diuranium(iii) complexes for the first time by reacting a specific uranium compound with bipyrimidine.
- The study used various techniques like X-ray crystallography and electrochemistry to characterize these new complexes, revealing that the radical bridges contribute to slow magnetic relaxation in certain complexes.
Field-induced slow magnetic relaxation behaviours in binuclear cobalt(II) metallocycles and exchange-coupled clusters.
Dalton Trans
June 2022
Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi-502285, Sangareddy, Telangana, India.
Precise control of the structures and magnetic properties of a molecular material constitutes an important challenge to realize tailor-made magnetic function. Herein, we report that the ligand-directed coordination self-assembly of a dianionic cobalt(II) mononuclear complex and selective organic linkers has led to two distinct dicobalt(II) complexes, [Co(pdms)(bpym)]·2MeCN (1) and [Co(pdms)(bipm)]·3DMF (2) (Hpdms = 1,2-bis(methanesulfonamide)benzene; bpym = 2,2'-bipyrimidine; bimp = 1,4-bis[(1-imidazol-1-yl)methyl]benzene). Structural analyses revealed that complexes 1 and 2 are discrete binuclear molecules containing two neutral {Co(pdms)} species bridged by bpym and bimp ligands, respectively, forming an exchange-coupled CoII2 dimer and a rare CoII2 metallocycle.
View Article and Find Full Text PDFA Three-Dimensional Coordination Framework with a Ferromagnetic Coupled Ni(II)-CrO Layer: Synthesis, Structure, and Magnetic Studies.
Polymers (Basel)
April 2022
Department of Chemistry, Tunghai University, Taichung 407, Taiwan.
We report herein on the crystal structure and magnetic studies of a three-dimensional (3D) Ni(II)-chromate coordination polymer, [Ni(CrO)(bpym)(HO)] (; bpym = 5,5'-bipyrimidin), prepared by self-assembly of Ni(II) and chromate ions with a multi- donor auxiliary ligands, bpym, through hydrothermal processes. The structure of is composed of Ni(II)-CrO layers with [Ni(-CrO)] triangular motifs, in which the Ni(II) centers are bridged by ':':':-CrO anions, and the resulting layers are further connected by twisted --,'-bpym auxiliary ligands to form a 3D pillar-layered network with an topology. The magnetic properties of compound were illustrated by variable field and temperature magnetic susceptibility measurements.
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!