Article
Chemistry, Multidisciplinary
Li-Juan Zhao, Bin Li, Guo-Ping Yong
Summary: Four novel isostructural lanthanide metal-organic frameworks were synthesized and characterized. One of them showed better sensitivity and selectivity towards Fe3+ ions and Cr2O72- anions. All four frameworks remained stable during the tests.
Article
Materials Science, Multidisciplinary
Shammy Laj Dhania, Archana Chauhan, Ritu Langyan
Summary: In this study, five novel europium complexes were synthesized with the introduction of coligands to enhance their photoluminescent properties. The complexes exhibited high thermal stability and strong red luminescence, making them potentially useful for the fabrication of optoelectronic devices.
Article
Chemistry, Inorganic & Nuclear
Chengyu Zhuo, Zeyu Lyu, Dashuai Sun, Sida Shen, Taixing Tan, Shuai Wei, Zhijun Li, Pengcheng Luo, Hongpeng You
Summary: Na2MgScF7 (NMSF) was synthesized for the first time through hydrothermal and high-temperature solid-state reactions. The NMSF crystalizes in the space group Imma, with the cell parameters a = 10.40860(18), b = 7.32804(12), c = 7.52879(11) angstrom, alpha = beta = gamma = 90 degrees, and V = 574.256(24) angstrom(3). Doping with Tb3+ or Eu3+ ions allows for yellow-green or red emission in NMSF-based phosphors, respectively. In addition, upconversion emission can be achieved by doping with Yb3+-Er3+, Yb3+-Tm3+, Yb3+-Ho3+, or Er3+. The synthesized NMSF:Er3+ phosphor exhibits green upconversion emission at 980 nm excitation and red emission at 1532 nm excitation.
DALTON TRANSACTIONS
(2023)
Article
Spectroscopy
Fernanda Sodre Rodrigues, Victor Agostinho Marques da Silva, Graziella Borges Queiroz Segovia, Adailton Joao Bortoluzzi, Alexandre Cuin, Jessica I. R. de Souza, Juliana A. B. da Silva, Leonis Lourenco da Luz, Severino Alves Junior, Eduardo Tonon de Almeida, Maryene Alves Camargo
Summary: Three new lanthanide complexes Na[Ln(pic)(4)]center dot.2.5H(2)O (Ln = Tb, Eu, or Gd; pic = picolinate) were synthesized and characterized. The crystal structures of the complexes were determined by single-crystal X-ray diffraction. The photoluminescent properties and theoretical studies of the complexes were investigated.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Materials Science, Multidisciplinary
Anna S. Miroshnichenko, Konstantin Deriabin, Artem Baranov, Vladimir Neplokh, Dmitry M. Mitin, Ilya E. Kolesnikov, Mikhail Dobrynin, Elizaveta K. Parshina, Ivan S. Mukhin, Regina M. Islamova
Summary: Light-excited flexible and self-healing luminescent polymers have been widely studied for the development of advanced color-emitting films. This study presents a two-step synthesis method to produce red, green, and blue-emitting polymers, which can be used for controlled color lighting in flexible devices. Additionally, these polymers demonstrate high tensile strength and elongation, as well as non-autonomous self-healing properties.
ACS APPLIED POLYMER MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Yaqin Wang, Bingfeng Chen, Haihong Wu, Xuelei Mei, Kaili Zhang, Bingxiao Zheng, Wanying Han, Jiao Xu, Mingyuan He, Buxing Han
Summary: Catalytic transfer hydrogenation is a feasible and safe method for the hydrodeoxygenation of biomass, enabling its effective utilization. A sustainable route for the production of delta-lactam has been demonstrated through catalytic transfer hydrogenation/hydrogenolysis of 4-hydroxy-6-methylpyridin-2(1H)-one derived from biomass-derived triacetic acid lactone. Ni-Ru bimetallic catalysts supported on carbon showed excellent catalytic performance, with a desired product yield of 83.5%, higher than other bimetallic or monometallic catalysts and commercial catalysts.
Article
Chemistry, Inorganic & Nuclear
Wanlu Liu, Anna M. Kaczmarek, Karel Folens, Gijs Du Laing, Pascal Van der Voort, Rik Van Deun
Summary: Three Periodic Mesoporous Organosilica (PMO) materials were presented, including a pyridine dicarboxamide functionalized PMO (DPA-PMO) and two amine functionalized PMOs (Am-PMO and Am-ePMO). These materials show potential for near-infrared (NIR) luminescence applications.
DALTON TRANSACTIONS
(2021)
Article
Chemistry, Inorganic & Nuclear
Hui Yuan, Ping Shang, Jie Yang, Qing Huang, Ling Song, Xuan-Feng Jiang
Summary: Two novel Ag(I)-calix[4]arene coordination polymers were developed and exhibited well-defined coordination frameworks due to the anion coordination and self-inclusion behavior. CPs 1 and 2 showed high photocatalytic activity for the degradation of RhB and MO under mild conditions (WLED and UV irradiation). CP 1 outperformed CP 2 in photocatalytic performance, which correlated with their molecular structure and HOMO-LUMO energy gaps. The photocatalysis mechanism was investigated and proposed, and the products and intermediates were successfully monitored and determined.
INORGANIC CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Adam Alemayehu, Anastasiya Zakharanka, Vaclav Tyrpekl
Summary: Oxalic acid is a crucial separation agent in the technology of lanthanides, actinides, and transition metals. This article presents a synthetic route for homogeneous precipitation of oxalates based on the thermal decomposition of oxamic acid, along with the characterization of the reaction products.
Article
Chemistry, Inorganic & Nuclear
Fan Zhang, Ru-Fen Zhang, Jing Ru, Jing Wang, Qian-Li Li, Chun-Lin Ma
Summary: Three novel dinuclear lanthanide(III) complexes were synthesized and characterized. Eu(III) and Tb(III) complexes exhibited characteristic luminescent properties and potential for temperature sensing, while Dy(III) complex showed weak antiferromagnetic interactions and slow magnetic relaxation behavior.
ZEITSCHRIFT FUR ANORGANISCHE UND ALLGEMEINE CHEMIE
(2021)
Article
Chemistry, Multidisciplinary
Fernando Gonzalez Chavez, Hiram Isaac Beltran
Summary: Two new 1D metal-organic frameworks, PBIA-Tm-1D and PBIA-Er-1D, were successfully synthesized from a semi-flexible PBIA ligand and lanthanide salts using solvothermal methodology. Characterization techniques confirmed their structures and thermal stability, with modulation of dimensionality observed based on the ligand-to-metal ratio. This modulation is promising for further applications due to its relation to lanthanide contraction and physicochemical characteristics.
NEW JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Bhupendra Goswami, Xiaofei Sun, Thomas J. Feuerstein, Michael T. Gamer, Peter W. Roesky
Summary: We report the synthesis of a new class of enantiopure homoleptic lanthanide complexes utilizing chiral iminophosphonamide ligands. The complexes exhibit a propeller-type structure and the rare-earth metal ion is hexacoordinated by three iminophosphonamide ligands. Photoluminescence studies reveal long-lived, ligand-absorption-enhanced, metal-centered green emission with a quantum yield of 15% for the Tb(III) complex in the solid state.
Article
Chemistry, Multidisciplinary
N. N. Bukov, L. I. Ivashchenko, V. T. Panyushkin
Summary: Complex compounds of 3-hydroxy-4-oxo-4H-pyran-2,6-dicarboxylic (meconic) acid with europium(III), gadolinium(III), terbium(III), dysprosium(III), erbium(III), thulium(III) and ytterbium(III) ions were synthesized by ion exchange method in aqueous solution. The compounds exhibited different crystalline and thermal stability properties, while lanthanide ions were coordinated to carboxyl groups and oxygen atoms forming polymer chain. The triplet level of the ligand was determined by phosphorescence spectrum of the Gd3+ complex compound, and the luminescent properties of other complexes were studied.
RUSSIAN JOURNAL OF GENERAL CHEMISTRY
(2021)
Article
Chemistry, Multidisciplinary
Todd N. Poe, Alyssa N. Gaiser, Thomas E. Albrecht-Schonzart
Summary: Several new Ln(2+) diaza-crown complexes were synthesized by direct synthesis of LnI(2) with 1,10-dibenzyl-1,10-diaza-18-crown-6 in organic media under air-free conditions. The coordination of the ligand with Ln(2+) caused distortion of the diaza-crown structure and resulted in closer interactions between the oxygen donors in the crown ether and the Ln(2+) center. The formation of different structures led to the discovery of three isostructural 8-coordinate complexes and two separate complexes.
CRYSTAL GROWTH & DESIGN
(2022)
Article
Chemistry, Multidisciplinary
Yan Yang, Lianzhi Li, Hua Yang, Lei Sun
Summary: Five novel lanthanide metal-organic frameworks were synthesized solvothermally using a pi-conjugated ligand with tetracarboxylate group. The compounds exhibit 3D microporous framework architectures with two kinds of 1D open channels. Compounds 2 and 4 demonstrate characteristic emissions of Eu(III) and Tb(III) in the solid state, with compound 4 acting as a fluorescent switch for DMF.
CRYSTAL GROWTH & DESIGN
(2021)
Article
Chemistry, Physical
Xinlei Chen, Shiyi Chen, Xuele Lin, Jingxuan Zhou, Xingjun Gao, Yaoqi Zhen, Xiaodan Ma, Shouwen Jin, Linfang Shi, Hui Liu, Daqi Wang
Summary: Nine mixed-ligand Cd2+ complexes with different geometric structures were synthesized and characterized. The complexes exhibit various coordination modes and form both intra- and intermolecular hydrogen bonds.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Rupali Mahajan, Abhishek Sharma, Bhagyashree Patra, Lijo Mani, Parul Grover, Sandeep Kumar, Santosh Kumar Guru, Gananadhamu Samanthula, Amol G. Dikundwar, Amit Asthana
Summary: This research article provides a comprehensive characterization and toxicological assessment of a photoisomeric impurity of the antianemic drug Roxadustat. The impurity has a distinct structure compared to the drug and its formation due to light exposure is a concern. Through various experiments, including single crystal XRD, physicochemical characterization, and in vitro cytotoxicity assays, the researchers confirmed the structure of the impurity, evaluated its conversion with Roxadustat, and assessed its toxicological activity. These findings contribute to the understanding of drug stability, safety, and formulation development.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Laila S. Alqarni, Azzah M. Alghamdi, Nuha Y. Elamin, A. Rajeh
Summary: The solution casting method was used to produce a new type of nanocomposites made of chitosan, gelatin, and co-doped ZnO nanoparticles. The addition of 3.5% co-doped ZnO nanoparticles improved the physicochemical characteristics and antimicrobial effects of the nanocomposites, indicating their significant potential in food packaging and energy storage.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Ruchi Gaur
Summary: The structure and intermolecular interactions of a newly synthesized bis-chalcone THXA were studied using experimental and computational methods. The importance of non-covalent interactions such as pi center dot center dot center dot pi, C-H center dot center dot center dot S, and C-H center dot center dot center dot pi was revealed.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Andrii Bazylevich, Leonid Patsenker, Sarit Aviel-Ronen, Gary Gellerman
Summary: Drug combination therapy is commonly used for treating various skin disorders, but its effectiveness is often limited. In this study, researchers synthesized conjugates of anti-pigmenting drugs and hyaluronic acid (HA) to improve treatment efficacy. These HA-drug conjugates exhibited measurable drug release profiles and demonstrated superior depigmentation effects compared to control groups in a swine model.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Xiaodan Ma, Xinlei Chen, Yaoqi Zhen, Xunjie Zheng, Chengzhe Shi, Shouwen Jin, Bin Liu, Bin Chen, Daqi Wang
Summary: Cocrystallization experiments between minoxidil and aryl acids coformers resulted in the successful formation of multi-component samples. The nature of these samples was determined using various techniques and their structural and supramolecular aspects were investigated. The outcomes revealed the importance of nonbonding contacts and different types of interactions in stabilizing and expanding the crystal structures.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Najla A. Alshaye, Magdy A. Ibrahim, Al-Shimaa Badran
Summary: The chemical behavior of 3-substituted-6,8-dimethylchromones towards phenylhydrazine was examined. Different reaction conditions produced various products, and the molecular geometries and reactivity descriptors of the compounds were also investigated. The results suggest that these compounds are suitable for nonlinear optical applications.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Hayette Alliouche, Houria Bouria, Rafik Bensegueni, Mounia Guergouri, Abdelmalek Bouraiou, Ali Belfaitah
Summary: In this paper, a combined experimental and theoretical study was conducted to synthesize and characterize new 2-quinolone-piperidine and -morpholine hybrids. The results from experiments were validated using computational calculations, and the affinity between these compounds and Acetylcholinesterase/Butyrylcholinesterase was estimated through molecular docking.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Wei-Min Chen, Juan-Juan Shao, Yi Zhang, Zhen-Dong Xue, Peng-Lai Liu, Jian-Ling Ni, Li-Zhuang Chen, Qiang Gao, Fang-Ming Wang
Summary: This study synthesized and characterized a novel Mn-based LMOF, and achieved good results in detecting heavy metal Al3+ in water, showing good stability, high selectivity and sensitivity. This provides new insights into the potential applications of Mn-based MOFs in chemical sensing.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Jun-Xia Li, Yi-Jing Lu, Ke-Ying Quan, Li-Bing Wu, Xun Feng, Wei-Zhou Wang
Summary: This study synthesized two cobalt(II) complexes and analyzed their crystal structures using single-crystal X-ray diffraction. The results showed that the crystal structures of these complexes were different, and they exhibited different crystal packing and magnetic properties.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Yang Li, Yan Zhang, Hong Xu, Min Li, Zhen Li, Zi-yu Song, Ji-shi Chen, Yan-Jun Liu, Yong Sun, Zhao Yang
Summary: This study reports the synthesis and solid-state characterization of a new pharmaceutical cocrystal, PRO-BPE, which can enhance the solubility of the highly water-insoluble prodrug probenecid. The PRO-BPE cocrystals were found to have superior water solubility compared to pure PRO. This research provides valuable insights into improving the solubility of poorly soluble drugs.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Lucas G. B. Felicio, Bianca B. M. Vieira, Ivana S. Lula, Renata Diniz, Frank Alexis, Flavio B. Miguz, Frederico B. De Sousa
Summary: A novel spiropyran derivative was synthesized for heavy metals sensing in water. The results demonstrated that the new derivative can serve as a rapid, sensitive, and simple tool for detecting Hg2+ ions in water with high selectivity.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Junqing Meng, Jie Wang, Lijuan Wang, Chunhui Lyu, Haiyan Chen, Yingpei Lyu, Baisheng Nie
Summary: Material modification with low surface energy can achieve lower surface free energy on micro-and nano-rough structures, which is crucial for developing superhydrophobic surfaces. In this study, attapulgite (APT) was modified with alkylamine, alkylammonium salt, and stearic acid, and the interaction between low surface materials and attapulgite was explained. The results showed that the hydrophobicity of APT was significantly modified by the modifiers, and the surface free energy of the composites first decreased and then increased with increasing molecular number of low surface energy monomers.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Karan Goswami, Dipak Das, Parthasarathi Bera, Sounak Roy, Md. Motin Seikh, Prasanta Kumar Sinha, Arup Gayen
Summary: This work presents the development of a simple and highly active heterogeneous Pd catalyst for Suzuki-Miyaura carbon-carbon cross-coupling reaction. The NiPdFe-1 catalyst shows the best activity and stability among the prepared catalysts. It efficiently promotes the coupling reaction between aryl bromide and phenyl boronic acid under mild reaction conditions with high isolated yields.
JOURNAL OF MOLECULAR STRUCTURE
(2024)
Article
Chemistry, Physical
Ekta Pardhi, Devendra Singh Tomar, Rahul Khemchandani, Gananadhamu Samanthula, Pankaj Kumar Singh, Neelesh Kumar Mehra
Summary: The main aim of this study was to prepare a drug-drug coamorphous system to improve the physiochemical properties, solubility and stability of Apremilast and Indomethacin. Various solid-state characterization techniques were used to characterize the prepared system. Molecular level interactions were studied using molecular modeling and ATR-FTIR and 1H NMR. Solubility and dissolution studies showed the benefits of the coamorphous system. The system was found to be stable for a period of five months. Permeation study also demonstrated improved flux for both drugs compared to their crystalline forms. The coamorphous system showed anti-psoriatic and anti-melanogenic activity based on molecular docking results. Overall, the developed CAM-based supersaturated system exhibited improved physicochemical properties and physical stability.
JOURNAL OF MOLECULAR STRUCTURE
(2024)