Trinuclear titanium complexes coordinated by one ligand with three coordination sites have shown properties of mixed valency and a high number of reversible redox steps. Herein we report on the hexaphenyl-substituted derivative (CpTi)(μ-HATNPh) (2). On reaction of 2 with the ferrocenium salt [CpFe]BF, the cationic complexes [(CpTi)(μ-HATNPh)] ( n = 1-3; 3-5) become available in a selective way. Cyclic voltammograms show 10 reversible redox states of the trinuclear species 2 without decomposition. In order to classify the degree of electronic communication between the titanium centers, comproportionation constants K, IVCT bands in NIR spectra, and magnetic measurements were analyzed. These parameters show strong coupling effects between the titanium centers but no full delocalization. In addition, single-crystal X-ray analysis of the neutral complex 2 and its oxidation products (1+ (3), 2+ (4), and 3+ (5)) revealed the geometric structure of the molecule in the solid state. For the cationic species anion-π interactions between the electron-deficient central ring of the HATNPh ligand and BF counterions were found.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1021/acs.inorgchem.8b01728 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Morphological Characteristics of Inferior Pole Patellar Fractures and a Finite-Element Analysis Combined With a Retrospective Clinical Study of Anchor Suture and Titanium Cable Cerclage Treatment.
Orthop Surg
January 2025
Department of Orthopedics Surgery, The Second Affiliated Hospital of Soochow University, Suzhou, Jiangsu Province, China.
Objective: Inferior pole patellar fractures (IPPFs) pose a significant challenge due to their complex fracture patterns and high risk of complications associated with current treatment methods. This study aims to (1) characterize the fracture patterns of IPPFs using fracture mapping and (2) compare the biomechanical stability and clinical outcomes of treatment with anchor suture with patellar cerclage versus Kirschner-wire tension band combined with patellar cerclage.
Methods: (1) A retrospective analysis was conducted on 61 patients with IPPF.
Management of Radix Entomolaris of Mandibular First Molar With Complex Root Canal Curvatures: A Case Report and Mini Review.
Clin Case Rep
January 2025
Student Research Committee, School of Dentistry, Mashhad University of Medical Sciences Mashhad Iran.
Radix entomolaris (RE) characterized by an extra root in mandibular molars is a rare phenotype. When this condition coincides with complex root canal curvatures or S-shaped canals, root canal therapy (RCT) challenges arise. The present study presents three cases of RE along with complex root curvatures.
View Article and Find Full Text PDFConstructing an Injectable Multifunctional Antibacterial Hydrogel Adhesive to Seal Complex Interfaces Post-Dental Implantation to Improve Soft Tissue Integration.
Macromol Biosci
January 2025
Hospital of Stomatology, Guangdong Provincial Key Laboratory of Stomatology, Institute of Stomatological Research, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou, 510062, China.
Soft tissue integration (STI) around dental implants determines their long-term success, and the key is to immediately construct a temporary soft tissue-like barrier to prevent bacterial invasion after implantation and then, promote STI. In response to this need, an injectable multi-crosslinked hydrogel (MCH) with abilities of self-healing, anti-swelling, degradability, and dry/wet adhesion to soft tissue/titanium is developed using gallic acid-graft-chitosan, oxidized sodium alginate, gelatin, and Cu with water and borax solution as solvents, whose properties can be controlled by adjusting its composition and ratio. MCH can not only immediately build a sealing barrier to block the bacterial invasion in the oral simulation environment but also deliver outstanding antibacterial efficacy through the synergism of trapping bacteria and releasing bactericidal agents such as chitosan, gallic acid, aldehyde, and Cu.
View Article and Find Full Text PDFAntibacterial and Anti-Inflammation Activity of Titanium Alloy by Efficient Copper Immobilization.
Langmuir
January 2025
Department of Biomaterials, Faculty of Dental Science, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
Titanium alloy plates are often used for fixation to bone. However, the plates often need to be removed due to infection and adverse inflammation. To avoid these problems, we immobilized copper, which has antibacterial effects and low cytotoxicity, on titanium plates by immersing the titanium in copper-tris(hydroxymethyl)aminomethane complex solutions.
View Article and Find Full Text PDFStudy of the Cathode/Electrolyte Interface in an All-Sulfide-Solid-State Battery Using Lithium-Rich Transition Metal Sulfide.
ACS Appl Mater Interfaces
January 2025
Universite de Pau et des Pays de l'Adour, E2S UPPA, CNRS, IPREM, 64000 Pau, France.
All-solid-state lithium batteries (ASSBs) are among the most promising energy storage technologies, particularly for electric vehicles, due to their enhanced safety. However, performances of these systems are still hindered by interfacial side reactions at electrode/electrolyte interfaces, especially when sulfide electrolytes are used, and additional issues of mechanical nature. In this work, an ASSB system composed of an argyrodite (LiPSCl) electrolyte, a lithium-rich sulfide cathode (LiTiS) operating at moderate voltage, and a lithium metal anode is investigated.
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!