High-quality crystals of two bis(phenolate)titanium complexes, namely dichlorido{4,4'-dimethyl-2,2'-[cyclohexane-1,2-diylbis(sulfanediyl)]diphenolato}titanium(IV), [Ti(C(20)H(22)O(2)S(2))Cl(2)], (I), and dichlorido{2,2'-[cyclohexane-1,2-diylbis(sulfanediyl)]diphenolato}titanium(IV), [Ti(C(18)H(18)O(2)S(2))Cl(2)], (II), were obtained by reactive crystallization. Depending on the solvent, compound (II) was obtained as unsolvated (IIa) or as the toluene hemisolvate, [Ti(C(18)H(18)O(2)S(2))Cl(2)].0.5C(7)H(8), (IIb). These systems without bulky substituents on the aromatic phenolate rings serve as ideal model compounds for precatalysts. The excellent X-ray diffraction data will help clarify the nature of the mismatched interactions between the soft S atoms within the ligand and the hard titanium center. Molecule (I) has crystallographic C(2) symmetry.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1107/S0108270109042280 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Analysis of scoliosis rod deformation after cutting with a surgical rod cutter.
Spine Deform
January 2025
Department of Orthopedic Surgery, Children's Mercy Kansas City, Kansas City, Missouri, USA.
Purpose: Scoliosis is a complex multi-dimensional deformity of the spine that is common in children and adults. Of the various treatments for scoliosis, one is posterior spinal fusion with instrumentation. The rods typically used are composed of titanium or cobalt-chrome.
View Article and Find Full Text PDFNovel early vertical ridge augmentation technique.
J Dent Sci
January 2025
School of Dentistry, College of Oral Medicine, Taipei Medical University, Taipei, Taiwan.
Background/purpose: Multiple augmentation protocols are documented in the literature to rebuild the deficient alveolar ridge after tooth extraction; however, achieving adequate vertical augmentation remains the most challenging goal. This study demonstrated a novel surgical technique of early vertical ridge augmentation for post-dental extraction. This technique offers several biological and technical advantages regarding the timing of the procedure and its relative simplicity compared to other complex techniques.
View Article and Find Full Text PDFEnhanced intestinal epithelial co-culture model with orbital mechanical stimulation: a proof-of-concept application in food nanotoxicology.
Front Mol Biosci
January 2025
Department of Agricultural and Food Sciences (DISTAL), University of Bologna, Cesena, Italy.
Introduction: Current intestinal models lack the mechanical forces present in the physiological environment, limiting their reliability for nanotoxicology studies. Here, we developed an enhanced Caco-2/HT29-MTX-E12 co-culture model incorporating orbital mechanical stimulation to better replicate intestinal conditions and investigate nanoparticle interactions.
Methods: We established co-cultures under static and dynamic conditions, evaluating their development through multiple approaches including barrier integrity measurements, gene expression analysis, and confocal microscopy.
Synergistic enhancement in ultra-trace thallium(I) removal using the titanium dioxide/biochar composite.
J Environ Manage
January 2025
Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Ministry of Education, School of Environmental Science and Engineering, Guangzhou University, Guangzhou, 510006, China. Electronic address:
Thallium (Tl), recognized for its high toxicity, is subject to stringent international regulations regarding its permissible concentrations at ultra-trace levels. In this study, titanium dioxide (TiO) was integrated with potassium (K)-rich biochar to create TiO/biochar (TiO/BC) composites for synergistic enhancement in ultra-trace Tl(I) removal, focusing on achieving concentration below the rigorous local threshold of 0.1 μg/L for drinking water.
View Article and Find Full Text PDFEffect of non-contact induction heating on HA coatings and bone cement, an ex vivo study.
F1000Res
January 2025
Department of Orthopaedics, Leiden University Medical Center, Leiden, Albinusdreef 2, 2333 ZA, The Netherlands.
Background: Prosthetic joint infection is a serious complication that can arise after total joint replacement surgery. When bacteria colonise an orthopaedic implant, they form biofilms that protect them from their environment, making them difficult to remove. Treatment is further complicated by a global rise of antimicrobial resistance.
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!