Category Ranking
98%
Total Visits
921
Avg Visit Duration
2 minutes
Citations
20
Article Abstract
Seven-coordinate rhenium oxo complexes supported by a tetradentate bipyridine carboxamide/carboxamidate ligand are reported. The neutral dicarboxamide Hbpy-da ligand initially coordinates in an L (ONNO) fashion to an octahedral rhenium oxo precursor, yielding a seven-coordinate rhenium oxo complex. Subsequent deprotonation generates a new oxo complex featuring the dianionic (LX) carboxamidate (NNNN) form of the ligand. Computational studies provide insight into the relative stability of possible linkage isomers upon deprotonation. Structural studies and molecular orbital theory are employed to rationalize the relative isomer stability and provide insight into the rhenium-oxo bond order.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1039/d3dt02617e | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Synthesis of Nitriles from Dinitrogen via N-Atom Transfer on Rhenium Nitride Complex.
Angew Chem Int Ed Engl
July 2025
Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing, 100871, China.
Transition-metal mediated dinitrogen (N) splitting into terminal nitrido moiety followed by N-atom transfer is an attractive strategy for N fixation beyond ammonia. While the functionalization of N-derived nitride complexes have been widely investigated, their N-atom transfer reactions to provide N-containing organic compounds were rarely reported. Herein, we report the synthesis of a rhenium nitride complex [(PNP)Re(N)Cl] (PNP = 4,5-bis(diisopropylphosphino)-2,7,9,9-tetramethyl-9H-acridin-10-ide) via reductive N cleavage from either rhenium trichloride or rhenium oxo dichloride complexes.
View Article and Find Full Text PDFSuperhydrophilic Bi-methylimidazole for preferred pH-responsive, targeted drug delivery to tumor.
Colloids Surf B Biointerfaces
September 2025
Institute of Bismuth and Rhenium Science, University of Shanghai for Science and Technology, Shanghai 200093, China; USST-UH International Joint Laboratory for Tumor Diagnosis and Energy Treatment, University of Shanghai for Science and Technology, Shanghai 200093, China.
Doxorubicin (DOX), a widely used chemotherapeutic agent, is severely limited by systemic toxicity. Conventional nanomaterials exhibit limited drug-carrying capacity and targeted delivery efficiency, while the biocompatibility of these materials remains a critical consideration. Here we report a novel type of superhydrophilic mesoporous nanomaterial, synthesized by combining bismuth and 2-methylimidazole (Bi-MEI), designed as a biocompatible and pH-sensitive drug carrier for the delivery of the anticancer drug DOX to combat tumor proliferation and metastasis.
View Article and Find Full Text PDFTechnetium and Rhenium Auto-reduction, Polymerization and Lability towards Group VII Polyoxometalate Chemistry.
Chemistry
April 2025
Department of Chemistry, Oregon State University, Corvallis, OR, 97331, USA.
Group VII Tc and Re have long been studied to develop both radiopharmaceuticals and technologies for nuclear materials management. Fundamental research has targeted understanding this periodic table crossroads where polyoxometalates meets metal-metal bonded complexes. Here we have isolated green hygroscopic and metastable crystals of (Re)(Re)(OH)(O)⋅HO (Re-green, tet=tetrahedral, oct=octahedral), determined by single-crystal x-ray diffraction.
View Article and Find Full Text PDFElectrochemical water oxidation reaction by dinuclear Re(V) oxo complexes with a 1,4-benzoquinone core the redox induced electron transfer (RIET) process.
Dalton Trans
May 2024
Inorganic Chemistry Section, Department of Chemistry, Jadavpur University, Kolkata, 700032, India.
We report two dinuclear rhenium(V) oxo complexes 1 and 2 types, [Re(O)(Cl)(L)Re(O)(Cl)][NBu] (1, L = dianionic 2,5-dihydroxy 1,4-benzoquinone (DBQ)) and (2, L = dianionic chloranilic acid (CA2-) ligands), as a homogeneous electrocatalyst for water oxidation reactions in the acetonitrile-water mixture. The evolution of dioxygen gas at the anode was confirmed by a GC-TCD study. In controlled potential electrolysis (CPE), oxidation at 1.
View Article and Find Full Text PDFNecrosis-Inducing High-Valent Oxo-Rhenium(V) Complexes with Potent Antitumor Activity: Synthesis, Aquation Chemistry, Cisplatin Cross-Resistance Profile, and Mechanism of Action.
Inorg Chem
December 2023
Laboratory of Medicinal Chemistry and Cell Biology, Department of Chemical Sciences, Tata Institute of Fundamental Research, Homi Bhabha Road, Navy Nagar, 400005 Mumbai, India.
Chemotherapy with the cytotoxic platinum (Pt) drugs cisplatin, carboplatin, and oxaliplatin is the mainstay of anticancer therapy in the clinic. The antitumor activity of Pt drugs originates from their ability to induce apoptosis via covalent adduct formation with nuclear DNA. While the phenomenal clinical success is highly encouraging, resistance and adverse toxic side effects limit the wider applicability of Pt drugs.
View Article and Find Full Text PDF