The chemistry of heterocycles in the 21st century

Russian Chemical Reviews, Journal Year: 2024, Volume and Issue: 93(7), P. RCR5125 - RCR5125

Published: July 1, 2024

The chemistry of heterocyclic compounds has traditionally been and remains a bright area chemical science in Russia. This is due to the fact that many heterocycles find widest application. These are key structural fragments most drugs, plant protection agents. Many natural also derivatives heterocycles. At present, more than half hundreds millions known collective review devoted achievements Russian chemists this field over last 15–20 years. presents leading heterocyclists representing both RAS institutes university science. It worth noting wide scope review, terms geography author teams, covering whole our large country, diversity research areas. Practically all major types represented review. special attention focused on practical applications design new drugs biologically active compounds, high-energy molecules, materials for organic electronics photovoltaics, ligands coordination chemistry, other rapidly developing advances would not be possible without development fundamental transformations chemistry.<br> Bibliography — 2237 references.

Language: Английский

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Advancements in functional adsorbents for sustainable recovery of rare earth elements from wastewater: A comprehensive review of performance, mechanisms, and applications

Advances in Colloid and Interface Science, Journal Year: 2025, Volume and Issue: 338, P. 103403 - 103403

Published: Jan. 22, 2025

Language: Английский

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Increasing the Magnetic Blocking Temperature of Single‐Molecule Magnets

Angewandte Chemie International Edition, Journal Year: 2023, Volume and Issue: 63(2)

Published: Aug. 4, 2023

Abstract The synthesis of single‐molecule magnets (SMMs), magnetic complexes capable retaining magnetization blocking for a long time at elevated temperatures, has been major concern magnetochemists over the last three decades. In this review, we describe basic SMMs and different approaches that allow high magnetization‐blocking temperatures to be reached. We focus on factors affecting blocking, axiality height barrier, which can used group families in terms their SMM efficiency. Finally, discuss several practical routes design mono‐ polynuclear could applied memory devices.

Language: Английский

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A pillar[5]arene noncovalent assembly boosts a full-color lanthanide supramolecular light switch

Chemical Science, Journal Year: 2023, Volume and Issue: 14(23), P. 6457 - 6466

Published: Jan. 1, 2023

A photo-responsive full-color lanthanide supramolecular switch was constructed from a synthetic 2,6-pyridine dicarboxylic acid (DPA)-modified pillar[5]arene (H) complexing with ion (Ln3+ = Tb3+ and Eu3+) dicationic diarylethene derivative (G1) through noncovalent assembly. Benefiting the strong complexation between DPA Ln3+ 3 : 1 stoichiometric ratio, complex H/Ln3+ presented an emerging emission in aqueous organic phase. Subsequently, network polymer formed by further encapsulating G1via hydrophobic cavity of pillar[5]arene, which greatly contributed to increased intensity lifetime, also resulted formation light switch. Moreover, luminescence, especially white emission, achieved (CIE: 0.31, 0.32) dichloromethane 0.33) solutions adjustment different ratios Eu3+. Notably, photo-reversible luminescence properties assembly were tuned via alternant UV/vis irradiation due conformation-dependent photochromic energy transfer open/closed-ring diarylethene. Ultimately, prepared successfully applied anti-counterfeiting use intelligent multicolored writing inks, presents new opportunities for design advanced stimuli-responsive on-demand color tuning luminescent materials.

Language: Английский

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Development and Prospects in the Structure and Performance of Lanthanide Single-Molecule Magnets

The Journal of Physical Chemistry C, Journal Year: 2024, Volume and Issue: 128(12), P. 4882 - 4890

Published: March 15, 2024

Single molecule magnets (SMMs) constitute a pivotal class of nanoscale molecular with promising potential across various domains such as high-density information storage, quantum computing, and spin electron devices. Among these, lanthanide-based SMMs have garnered significant attention in recent research due to their distinctive magnetic coordination properties, offering prospects for substantial advancements storage technologies. Over the past three decades, considerable efforts been directed toward developing novel characterized by anisotropy barrier blocking temperature, leading strides field. This perspective delves into latest developments structure performance lanthanide SMMs, providing valuable insights optimizing functionality. The roles ligands central atoms modulating are emphasized alongside strategies augment explore surface applications. Additionally, this explores fusion theoretical machine learning methodologies identify highly anisotropic thereby outlining roadmap functionality SMMs.

Language: Английский

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Get under the Umbrella: A Comprehensive Gateway for Researchers on Lanthanide‐Based Single‐Molecule Magnets

European Journal of Inorganic Chemistry, Journal Year: 2023, Volume and Issue: 26(35)

Published: July 7, 2023

Abstract The number of scientific articles that need to be considered cover a research topic is ever‐increasing and quite difficult for newcomer assimilate. This particularly true in dynamic discipline like Molecular Magnetism. In order help young researchers this field, article proposes “review reviews” also known as an “umbrella review” on lanthanide‐based single‐molecule magnets ( 4 f ‐SMM). As preamble, various bibliographic search techniques AI‐based tools search, indexing, summarization are proposed commented. Then, the main milestones ‐SMM identified. core paper, books, book articles, reviews dealing with contextualized classified by subtopics. therefore gateway field.

Language: Английский

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Unexpected Supramolecular-Induced Redox Switching in Sandwich Gd Bisphthalocyaninate

Inorganic Chemistry, Journal Year: 2024, Volume and Issue: 63(18), P. 8163 - 8170

Published: April 25, 2024

The redox state of the phthalocyanine in sandwich lanthanide complexes is crucial for their applications. In this work, we demonstrate that cation-induced supramolecular assembly crown-substituted Ln[(15C5)4Pc]2 can be used to control ligand simultaneously with coordination sphere central metal. We achieve unprecedented switching ligands a double-decker Gd(III) complex, resulting from intramolecular inclusion potassium cations between decks simultaneous twisting (the skew angle them decreases 44.61 0.21°). Such structural change leads an increase deck-to-deck distance and drastically facilitates reduction. This process was shown anion-dependent: only salts weak acids (KOPiv KOAc) induce contrast strong (KBr, KOPic, KSCN, KPF6), where such does not occur. breakthrough opens new avenues controlling electrochromic properties, phthalocyanines, along other as electrical conductivity, optics, etc.

Language: Английский

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Thiacalixarene Carboxylic Acid Derivatives as Inhibitors of Lysozyme Fibrillation

International Journal of Molecular Sciences, Journal Year: 2024, Volume and Issue: 25(9), P. 4721 - 4721

Published: April 26, 2024

Amyloid fibroproliferation leads to organ damage and is associated with a number of neurodegenerative diseases affecting populations worldwide. There are several ways protect against fibril formation, including inhibition. A variety organic compounds based on molecular recognition amino acids within the protein have been proposed for design such inhibitors. However, role macrocyclic compounds, i.e., thiacalix[4]arenes, in inhibiting fibrillation still almost unknown. In present work, use water-soluble thiacalix[4]arene derivatives inhibition hen egg-white lysozyme (HEWL) amyloid first time. The binding HEWL by synthesized thiacalix[4]arenes (logKa = 5.05–5.13, 1:1 stoichiometry) formation stable supramolecular systems capable stabilizing structure protecting 29–45%. macrocycle conformation has little effect strength, native secondary does not change via interaction. non-toxic A549 cell line range 0.5–250 µg/mL. results obtained may be useful further investigation anti-amyloidogenic also open up future prospects creation new prevent diseases.

Language: Английский

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The literature of heterocyclic chemistry, part XXII, 2022

Advances in heterocyclic chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Language: Английский

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Reducing Intrinsic Carrier Recombination in Au/CuTCPP(Fe) Schottky Junction Through Spin Polarization Manipulation for Sensitive Photoelectrochemical Biosensing

Analytical Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 8, 2025

Schottky junctions have been widely applied to facilitate charge carrier separation through the formation of an internal electric field (IEF). However, notably restricted spatial distribution IEF weakens promotion intrinsic separation. In this study, we unveil that Au nanoparticles (NPs) in Au/CuTCPP(Fe) junction can manipulate spin polarization CuTCPP(Fe) inhibit inner recombination. Experimental investigations and theoretical calculations reveal introduction NPs leads increased population spin-polarized electrons, effectively suppressing recombination by employing mismatch between photoexcited carriers. Moreover, as a typical active site for oxygen reduction reaction, adsorption configuration on Fe single-atom sites is further optimized, resulting boosted interfacial reactions. Leveraging thiocholine-induced poisoning magnetic-enhanced photoelectric response, harnessed develop photoelectrochemical biosensing platform organophosphorus pesticides. This work offers promising method manipulating semiconductors heterojunctions mitigate

Language: Английский

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