The solvothermal reaction of a mixture of calcium acetylacetonate and 1,4-naphthalenedicarboxylic acid (HNDC) in a solution containing ethanol and distilled water gave rise to a metal-organic framework (MOF), {(HO)[Ca(NDC)(CHO)(OH)]}·1.1HO. This MOF possesses a new structure composed of calcium clusters and HNDC linker anions and shows a unique fluorescence property; it exhibits a fluorescence peak at 395 nm ( = 350 nm) at room temperature, which is blue-shifted compared with that exhibited by the free HNDC ligand. One of the possible mechanisms for this fluorescence is likely attributable to a ligand-to-metal charge transfer (LMCT) transition and is the first example of a calcium-based MOF exhibiting blue-shifted fluorescence due to LMCT.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9085643 | PMC |
| http://dx.doi.org/10.1039/c8ra06043f | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Electrochemical aptasensor based on zirconium/copper oxides embedded in mesoporous carbon derived from bimetallic metal-organic framework for ultrasensitive detection of miR-21.
Mikrochim Acta
January 2025
Electroanalytical Chemistry Research Laboratory, Department of Analytical Chemistry, Faculty of Chemistry, University of Mazandaran, Babolsar, Iran.
A novel electrochemical aptasensor based on bimetallic zirconium and copper oxides embedded within mesoporous carbon (denoted as ZrOCuO@mC) was constructed to detect miRNA. The porous ZrOCuO@mC was created through the pyrolysis of bimetallic zirconium/copper-based metal-organic framework (ZrCu-MOF). The substantial surface area and high porosity of ZrOCuO@mC nanocomposite along with its robust affinity toward aptamer strands, facilitated the effective anchoring of aptamer strands on the ZrOCuO@mC-modified electrode surface.
View Article and Find Full Text PDFSpin-Frustrated Metal-Organic Frameworks.
Chemistry
January 2025
Indian Institute of Science Education and Research (IISER), Chemistry, Dr. Homi Bhabha Road, Pashan, 411008, Pune, INDIA.
Metal-organic frameworks (MOFs) are a fascinating class of structured materials with diverse functionality originating from the distinctive physicochemical properties. This review focuses on the specific chemical design of geometrically frustrated MOFs along with the origin of the intriguing magnetic properties. We have discussed the arrangement of spin centres (metal and ligand) which are responsible for the unusual magnetic phenomena in MOFs.
View Article and Find Full Text PDFControlled reconstruction of metal-organic frameworks coordination environment tuning as oxygen evolution electrocatalysts.
Dalton Trans
January 2025
Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, China.
During the oxygen evolution reaction (OER), metal-organic framework (MOF) catalysts undergo structural reorganization, a phenomenon that is still not fully comprehended. Additionally, designing MOFs that undergo structural reconstruction to produce highly active OER catalysts continues to pose significant challenges. Herein, a bimetallic MOF (CoNi-MOF) with carboxylate oxygen and pyridine nitrogen coordination has been synthesized and its reconstruction behavior has been analyzed.
View Article and Find Full Text PDFDevelopment of a bacteria-nanosapper for the active delivery of ZIF-8 particles containing therapeutic genes for cancer immune therapy.
Acta Pharm Sin B
December 2024
School of Pharmacy, Institute of Hepatology and Metabolic Diseases, Department of Hepatology, the Affiliated Hospital of Hangzhou Normal University, Hangzhou Normal University, Hangzhou 311121, China.
Specific tumor-targeted gene delivery remains an unsolved therapeutic issue due to aberrant vascularization in tumor microenvironment (TME). Some bacteria exhibit spontaneous chemotaxis toward the anaerobic and immune-suppressive TME, which makes them ideal natural vehicles for cancer gene therapy. Here, we conjugated ZIF-8 metal-organic frameworks encapsulating eukaryotic murine interleukin 2 () expression plasmid onto the surface of VNP20009, an attenuated strain with well-documented anti-cancer activity, and constructed a TME-targeted delivery system named /ZIF-8@.
View Article and Find Full Text PDFPhenylphosphonic acid corroles: corroles that link and bind.
Dalton Trans
January 2025
Univ. Bourgogne Europe, CNRS, ICMUB (UMR 6302) Institut de Chimie Moléculaire de l'Université de Bourgogne, 9, Avenue Alain Savary, 21 000 Dijon, France.
We report herein the synthesis and full spectroscopic characterization of two AB-corrole phosphonic acids. Thanks to the presence of a phosphonic acid functional group at the 10--position, the corroles were covalently linked to the hexanuclear Zr clusters of a PCN-222 metal-organic framework (MOF). After the insertion of cobalt into the corrole macrocycle, the metal complexes are able to bind small volatile molecules such as carbon monoxide (CO).
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!