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Thematische Bibliographien / Host-Guest moleculars

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Zeitschriftenartikel

Auswahl der wissenschaftlichen Literatur zum Thema „Host-Guest moleculars“

Autor: Grafiati

Veröffentlicht am 18. Mai 2024

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Zeitschriftenartikel zum Thema "Host-Guest moleculars"

1

Malinska, Maura. "Insights into molecular recognition from the crystal structures of p-tert-butylcalix[6]arene complexed with different solvents." IUCrJ 9, no. 1 (2021): 55–64. http://dx.doi.org/10.1107/s2052252521010678.

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Calixarenes are host molecules that can form complexes with one or more guest molecules, and molecular recognition in calixarenes can be affected by many factors. With a view to establishing molecular recognition rules, the host p-tert-butylcalix[6]arene (TBC6) was crystallized with different guest molecules (cyclohexane, anisole, heptane, toluene, benzene, methyl acetate, ethyl acetate, dichloromethane, tetrahydrofuran and pyridine) and the obtained structures were characterized by X-ray diffraction. With most solvents, 1:1 and/or 1:3 host–guest complexes were formed, although other stoichiom

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2

Chen, Kaifei, Seyed Hesam Mousavi, Ranjeet Singh, Randall Q. Snurr, Gang Li, and Paul A. Webley. "Gating effect for gas adsorption in microporous materials—mechanisms and applications." Chemical Society Reviews 51, no. 3 (2022): 1139–66. http://dx.doi.org/10.1039/d1cs00822f.

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External stimuli or host–guest interactions induce structural changes, producing a gating effect in which an adsorbent suddenly becomes accessible to guest molecules. This effect greatly facilitates gas separation, storage, and molecular detection.

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3

Lebedinskiy, Konstantin, Ivan Barvík, Zdeněk Tošner, Ivana Císařová, Jindřich Jindřich, and Radim Hrdina. "Spatial arrangements of cyclodextrin host–guest complexes in solution studied by ¹³C NMR and molecular modelling." Beilstein Journal of Organic Chemistry 20 (February 20, 2024): 331–35. http://dx.doi.org/10.3762/bjoc.20.33.

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13C NMR spectroscopic analyses of Cs symmetric guest molecules in the cyclodextrin host cavity, combined with molecular modelling and solid-state X-ray analysis, provides a detailed description of the spatial arrangement of cyclodextrin host–guest complexes in solution. The chiral cavity of the cyclodextrin molecule creates an anisotropic environment for the guest molecule resulting in a splitting of its prochiral carbon signals in 13C NMR spectra. This signal split can be correlated to the distance of the guest atoms from the wall of the host cavity and to the spatial separation of binding si

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4

Elemans, Johannes A. A. W., Roeland J. M. Nolte, and Alan E. Rowan. "Hierarchical self-assembly of a host-guest porphyrin array." Journal of Porphyrins and Phthalocyanines 07, no. 04 (2003): 249–54. http://dx.doi.org/10.1142/s1088424603000331.

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The construction of a porphyrin array by a stepwise, hierarchical self-assembly process is described. Four molecular clip host molecules are complexed, in a solid state self-assembly process, to one porphyrin guest molecule. When dissolved in chloroform, the 4:1 host-guest complexes spontaneously self-assemble into an array in which the porphyrins are organized in a cofacial stack. The ensemble is stabilized by a combination of π-π interactions between the porphyrins and between the aromatic surfaces of the host molecules.

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5

Liang, Guodong, Jacky W. Y. Lam, Wei Qin, Jie Li, Ni Xie, and Ben Zhong Tang. "Molecular luminogens based on restriction of intramolecular motions through host–guest inclusion for cell imaging." Chem. Commun. 50, no. 14 (2014): 1725–27. http://dx.doi.org/10.1039/c3cc48625g.

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6

Suzuki, Akira, Yuya Miyake, Ryoga Shibata, and Kazuyuki Takai. "Spin and charge interactions between nanographene host and ferrocene." Beilstein Journal of Organic Chemistry 20 (May 2, 2024): 1011–19. http://dx.doi.org/10.3762/bjoc.20.89.

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Ferrocene (FeCp2) was introduced as a non-magnetic guest molecule to activated carbon fibers (ACFs) as a nanographene-based host having localized spins originating from zigzag edges of graphene. The introduction of the guest molecule was confirmed by FTIR for ACFs-FeCp2 introduced at 55 (150) °C (FeCp2-ACFs-55(150)). The appearance of satellite Fe2p peaks and the increase in shake-up peak intensity of the C1s in the XPS spectrum proved the emergence of charge-transfer host–guest interaction in FeCp2-ACFs-150, supported by the red-shift of the G-band in the Raman spectrum. The six-times enhance

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7

Sun, Zhaoxi, Qiaole He, Zhihao Gong, Payam Kalhor, Zhe Huai, and Zhirong Liu. "A General Picture of Cucurbit[8]uril Host–Guest Binding: Recalibrating Bonded Interactions." Molecules 28, no. 7 (2023): 3124. http://dx.doi.org/10.3390/molecules28073124.

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Atomic-level understanding of the dynamic feature of host–guest interactions remains a central challenge in supramolecular chemistry. The remarkable guest binding behavior of the Cucurbiturils family of supramolecular containers makes them promising drug carriers. Among Cucurbit[n]urils, Cucurbit[8]uril (CB8) has an intermediate portal size and cavity volume. It can exploit almost all host–guest recognition motifs formed by this host family. In our previous work, an extensive computational investigation of the binding of seven commonly abused and structurally diverse drugs to the CB8 host was

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8

Yoshida, Hiroaki, Ken Kikuta, and Toshiyuki Kida. "Fabrication of supramolecular cyclodextrin–fullerene nonwovens by electrospinning." Beilstein Journal of Organic Chemistry 15 (January 9, 2019): 89–95. http://dx.doi.org/10.3762/bjoc.15.10.

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Direct electrospinning of small molecules has great potential to fabricate a new class of fiber materials because this approach realizes the creation of various functional materials through the numerous molecular combinations. In this paper, we demonstrate a proof-of-concept to fabricate supramolecular fiber materials composed of cyclodextrin (CD)–fullerene inclusion complexes by electrospinning. Similar to the molecular state of fullerenes in solution, the resulting fibers include molecularly-dispersed fullerenes. We believe such a concept could be expanded to diverse host–guest complexes, op

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9

Archana Sumohan Pillai, Sivaraj Ramasamy, Varnitha Manikandan, Aleyamma Alexander та Israel V.M.V. Enoch. "Anticancer Activity of the Host-Guest Complex of Camptothecin with β-Cyclodextrin-Folate Conjugate. Encapsulation and Efficacy". International Journal of Research in Pharmaceutical Sciences 11, SPL4 (2020): 1286–91. http://dx.doi.org/10.26452/ijrps.v11ispl4.4294.

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Cyclodextrins are cyclic oligosachcharides that act as molecular hosts and accommodate drug molecules forming host: guest complexes. They aid in the sustained release of the encapsulated drugs through diffusion in solution and protect their unstable forms. In this paper, we report the synthesis of a β-cyclodextrin-folate by a simple coupling reaction. The compound is characterized using IR, NMR, and mass spectroscopic techniques. The amide carbonyl band is observed at 1680 cm-1. The mass spectrum shows the molecular ion peak of the β-cycloxetrin-folate conjugate at an m/z value of 1615.35. An

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10

Wen, Huimin, Wengang Li, Jiewei Chen, et al. "Complex formation dynamics in a single-molecule electronic device." Science Advances 2, no. 11 (2016): e1601113. http://dx.doi.org/10.1126/sciadv.1601113.

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Single-molecule electronic devices offer unique opportunities to investigate the properties of individual molecules that are not accessible in conventional ensemble experiments. However, these investigations remain challenging because they require (i) highly precise device fabrication to incorporate single molecules and (ii) sufficient time resolution to be able to make fast molecular dynamic measurements. We demonstrate a graphene-molecule single-molecule junction that is capable of probing the thermodynamic and kinetic parameters of a host-guest complex. By covalently integrating a conjugate

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