Article
Chemistry, Inorganic & Nuclear
Mamina Bhol, Guilhem Claude, Maximilian Roca Jungfer, Ulrich Abram, Malaichamy Sathiyendiran
Summary: In this study, calix[4]arene-analogous technetium supramolecules and rhenium-based macrocycles were successfully assembled by using specific ligands and starting materials. The structures of these molecules were characterized in detail.
INORGANIC CHEMISTRY
(2022)
Article
Chemistry, Physical
Serkan Erdemir, Ozcan Kocyigit, Sait Malkondu
Summary: A novel sensory macromolecule has been designed for the recognition of Ca2+ ions, which has demonstrated excellent sensing behavior and can be used for monitoring calcium ions in various environments.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Analytical
Evin Aysegul Simsir, Serkan Erdemir, Mustafa Tabakci, Begum Tabakci
Summary: A highly selective and sensitive MET detection method based on fluorescence quenching using a fluorescent calix[4]arene derivative has been reported. The probe showed great potential for practical applications, especially in pharmaceutical preparations, with fast and accurate detection of MET. The probe was successfully applied in pharmaceutical samples and as a paper-based sensor for MET detection.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Multidisciplinary
Shaoheng Li, Ziji Bai, Feiyang Rong, Jiayin Huang, Lipan Zhou, Guodong Feng, Zhiguang Song
Summary: In this work, a novel fluorescence active benzotriazole-coumarin derivative, BTANC, was synthesized as a ligand in Pd(II) cation coordination. It was found that Pd(II) effectively quenched the fluorescence of BTANC, indicating the potential of using fluorescence signal to monitor the completion of the Sonogashira coupling reaction.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Review
Chemistry, Inorganic & Nuclear
Xiaojing Nan, Yuchen Huyan, Hongjuan Li, Shiguo Sun, Yongqian Xu
Summary: Transition metal ions play crucial roles in medicine, life sciences, and environmental science, but some like mercury, copper, and iron ions pose serious health and environmental risks due to biomagnification. Monitoring metal ion levels in organisms and the environment is urgent, and reaction-based fluorescent probes offer higher sensitivity and selectivity than traditional methods. Research on these probes for Hg2+, Cu2+, and Fe2+/Fe2+ detection has advanced in the past decade, with potential for interdisciplinary development in the future.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Physical
Ying Yang, Cheng Chen, Guo-Yong Xu, Jinyun Yuan, Sun-Feng Ye, Li Chen, Qi-Long Lv, Gen Luo, Jinlong Yang, Man-Bo Li, Zhikun Wu
Summary: In this study, a Cu-incorporated Au-13 nanocluster was designed and prepared, showing potential to be a novel catalytic system for the Sonogashira reaction with high activity, selectivity, and recyclability even in air atmosphere.
JOURNAL OF CATALYSIS
(2021)
Article
Chemistry, Organic
Zuquan Wang, Yunjian Li, Jing Shi, Xiaoqiang Sun, Tangxin Xiao, Ke Yang, Zheng-Yi Li
Summary: Two novel fluorescent probes, L1 and L2, have been prepared by incorporating salicylaldehyde-derived Schiff base groups onto the upper rim of calix[4]arene. Among these probes, L2 shows the highest effectiveness in recognizing Al3+, with a highly selective fluorescence response at 478 nm emission wavelength and 88 nm Stokes shift.
EUROPEAN JOURNAL OF ORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Pamela Aoun, Nicolas Nyssen, Sarah Richard, Fedor Zhurkin, Ivan Jabin, Benoit Colasson, Olivia Reinaud
Summary: In this study, the influence of the cavity nature surrounding the metal labile site on metal ion properties is explored. Three calix[6]arene-based aza-ligands with different cavity walls (anisole, phenol, and quinone) are compared, and it is found that the metal ion affinities for different ligands differ significantly. The study also suggests the possibility of kinetic control on metal ion binding and ligand exchange. This research supports the observations in biological systems, emphasizing the strong impact of amino-acid residues substitution in the enzyme active site on metal ion lability, substrate/product exchange, or selectivity.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Chemistry, Analytical
Ermanno Vasca, Francesco Siano, Tonino Caruso
Summary: A fluorescence sensing method based on host-guest molecular recognition is proposed for the detection of widely used herbicides paraquat and diquat. The method utilizes calix[6]arene derivatives containing anthracene or naphthalene as pendant fluorophore to recognize paraquat and diquat in hydroalcoholic solution and shows a broad linear response range. The method has been successfully applied to the determination of paraquat in drinking water samples.
Article
Chemistry, Multidisciplinary
Alejandro Lorente, Andres Ochoa, Julio Rodriguez-Lavado, Silvia Rodriguez-Nuevalos, Pablo Jaque, Salvador Gil, Jose A. Saez, Ana M. Costero
Summary: A new selective fluorogenic chemosensor for Hg2+ has been studied, which incorporates a calixarene derivative and a BODIPY core. The changes in its fluorogenic properties in DMSO and CHCl3 have been analyzed, and through dilution studies and molecular modeling, it was explained that the behavior involves the formation of a J-dimer and the sensing mechanism of Hg2+.
Article
Chemistry, Multidisciplinary
Apoorva Malik, Pragati R. Sharma, Rakesh K. Sharma
Summary: In this letter, a highly selective crown-ether-appended calix[4]arene derived phase transfer catalyst was designed and applied for asymmetric nitroaldol reaction, leading to the desired adducts with high yields and good enantioselectivities.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Biochemistry & Molecular Biology
Jaymin Parikh, Keyur Bhatt, Nihal Patel, Krunal Modi, Nirali Parmar
Summary: Functionalized calix[4]pyrroles have been used as molecular sensors to investigate their binding behavior with different amino acids. Acid functionalization of calix[4]pyrrole derivative (TACP) facilitated host-guest interactions and increased the solubility of the ligand. TACP exhibited significant fluorescence enhancement in the presence of tryptophan while no considerable changes were observed with other amino acids.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Biochemistry & Molecular Biology
Patricia D. Barata, Alexandra I. Costa, Sergio Costa, Jose V. Prata
Summary: Supramolecular chemistry has become a central theme in chemical and biological sciences and is increasingly applied in biomedical applications, especially in stimuli-responsive devices. This study focuses on the design and synthesis of two new fluorescent bis-calix[4]arene-carbazole conjugates as specific hosts for fullerenes C-60 and C-70, with thorough characterization of their optical properties and complexation behavior. The experimental results, supported by fluorescence techniques and NMR spectroscopy, confirmed the formation of inclusion complexes between the host molecules and C-60/C-70, with higher stability observed for the C-70@4 supramolecule. Density functional theory models further supported the experimental findings.
Article
Biochemical Research Methods
Aleksejs Burcevs, Armands Sebris, Kaspars Traskovskis, Han-Wei Chu, Huan-Tsung Chang, Justina Jovaisaite, Saulius Jursenas, Maris Turks, Irina Novosjolova
Summary: A design for the synthesis of C-C bonded 2,6-bis(1H-1,2,3-triazol-4-yl)-9H-purine and 2-piperidinyl-6-(1H-1,2,3-triazol-4-yl)-9H-purine derivatives was established using a combination of various reaction techniques. The resulting compounds showed good fluorescent properties and were found to be non-cytotoxic in biological studies. The synthesis yielded 11 examples of 2,6-bistriazolylpurine and 14 examples of 2-piperidinyl-6-triazolylpurine intermediates with yields ranging from 38% to 89%.
JOURNAL OF FLUORESCENCE
(2023)
Article
Chemistry, Physical
Kewei Sun, Maxim F. Gelin, Yang Zhao
Summary: This study has developed a fully quantum methodology to simulate the dynamics and nonlinear spectroscopic signals of cavity-assisted, conical-intersection-controlled singlet fission systems. The methodology is able to handle multiple molecular systems and different electronic states with high numerical accuracy.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Organic
Geeta Devi Yadav, Pooja Chaudhary, Balaram Pani, Surendra Singh
Summary: Chiral transition metal complexes with privileged ligands are efficient catalysts for various asymmetric organic transformations. Transition metal complexes of C1-symmetric pyrrolidine-based ligands have been widely used in asymmetric organic reactions. However, a comprehensive review article on the transition metal complexes of chiral C1-symmetric pyrrolidine-based ligands derived from (L)-proline has not been published.
TETRAHEDRON LETTERS
(2024)
