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Escobar-Picos R, Vasquez-Ríos MG, Sotelo-Mundo RR, Jancik V, Martínez-Otero D, Calvillo-Páez V, Höpfl H, Ochoa Lara K. A Chiral Bis-Naphthylated Tetrandrine Dibromide: Synthesis, Self-Assembly into an Organic Framework Based On Nanosized Spherical Cages, and Inclusion Studies. Chempluschem 2020; 84:1140-1144. [PMID: 31943950 DOI: 10.1002/cplu.201900344] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/09/2019] [Indexed: 01/30/2023]
Abstract
Crystalline framework materials have gained interest because of their many potential applications. A novel chiral tetrandrine salt (DNT) has been synthesized and characterized by conventional analytical techniques and single-crystal X-ray diffraction analysis, and its self-assembly behavior studied. In the solid state, 48 molecules of the compound self-assemble into an organic framework based on nanospherical aggregates formed exclusively through weak noncovalent interactions. Additionally, it was demonstrated by UV-vis spectroscopy and TGA that assembled DNT can include the Nile Red dye, giving a fluorescent material. To the best of our knowledge, these spherical assemblies are the largest among the purely synthetic organic self-assembled molecular crystals reported to date.
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Affiliation(s)
- Raymundo Escobar-Picos
- Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora Blvd. Luis Encinas y Rosales S/N, 83000, Hermosillo, Sonora, México
| | - María G Vasquez-Ríos
- Centro de Investigaciones Químicas, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209, Cuernavaca, Morelos, México
| | - Rogerio R Sotelo-Mundo
- Laboratorio de Estructura Biomolecular Centro de Investigación en Alimentación y Desarrollo A. C., Carretera Gustavo Enrique Astiazarán Rosas 46, 83304, Hermosillo, Sonora, México
| | - Vojtech Jancik
- Instituto de Química, Universidad Nacional Autónoma de México Ciudad Universitaria, 04510, Ciudad de México, México.,Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco, km. 14.5, 50200, Toluca, Estado de México, México
| | - Diego Martínez-Otero
- Instituto de Química, Universidad Nacional Autónoma de México Ciudad Universitaria, 04510, Ciudad de México, México.,Centro Conjunto de Investigación en Química Sustentable UAEM-UNAM, Carretera Toluca-Atlacomulco, km. 14.5, 50200, Toluca, Estado de México, México
| | - Viviana Calvillo-Páez
- Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora Blvd. Luis Encinas y Rosales S/N, 83000, Hermosillo, Sonora, México
| | - Herbert Höpfl
- Centro de Investigaciones Químicas, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, 62209, Cuernavaca, Morelos, México
| | - Karen Ochoa Lara
- Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora Blvd. Luis Encinas y Rosales S/N, 83000, Hermosillo, Sonora, México
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Sangun MK, Kilincceker G. Investigation of Hydrogen Production by using Zinc Coated Platinum Electrode in Phosphate Solutions. FRENCH-UKRAINIAN JOURNAL OF CHEMISTRY 2019. [DOI: 10.17721/fujcv7i1p16-24] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
In this study, the hydrogen gas producing was investigated at 298 K with zinc coated platinum (Pt-Zn) electrode in 0.1 M NaH2PO4 solution (pH=12.3). Electrolysis, electrochemical impedance spectroscopy (EIS) and potentiodynamic polarization techniques were used for the production of hydrogen gas. Scanning electron microscopy (SEM), energy dispersive X-ray analysis (EDX) and X-ray fluorescence (XRF) were used for the surface analysis of the electrodes. A practical electrocatalytic experiment was designed to examine of hydrogen production by using a Zn plated Pt electrode and the efficiency of the hydrogen gas increased by 66.66% on the surface of the zinc coated platinum electrode.
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Mahajan A, Bhattacharya SK, Rochat S, Burrows AD, Fletcher PJ, Rong Y, Dalton AB, McKeown NB, Marken F. Polymer of Intrinsic Microporosity (PIM‐7) Coating Affects Triphasic Palladium Electrocatalysis. ChemElectroChem 2018. [DOI: 10.1002/celc.201801359] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Ankita Mahajan
- Department of ChemistryUniversity of Bath Claverton Down BA2 7AY UK
- Physical Chemistry Section Department of ChemistryJadavpur University Kolkata 700032 India
| | - Swapan K. Bhattacharya
- Physical Chemistry Section Department of ChemistryJadavpur University Kolkata 700032 India
| | - Sébastien Rochat
- Department of ChemistryUniversity of Bath Claverton Down BA2 7AY UK
| | | | - Philip J. Fletcher
- Materials and Chemical Characterisation Facility (MC2)University of Bath Claverton Down BA2 7AY UK
| | - Yuanyang Rong
- School of Physics and AstronomyUniversity of Sussex Brighton BN1 9RH UK
| | - Alan B. Dalton
- School of Physics and AstronomyUniversity of Sussex Brighton BN1 9RH UK
| | - Neil B. McKeown
- School of ChemistryUniversity of Edinburgh Joseph Black Building West Mains Road Edinburgh Scotland EH9 3JJ, UK
| | - Frank Marken
- Department of ChemistryUniversity of Bath Claverton Down BA2 7AY UK
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