{"title":"Ab Initio Studies of the Structures, Electronic and Vibrational Properties of Double Phosphates MCdPO4 (M: Li, Na, Rb, Cs)","authors":"Yu. N. Zhuravlev","doi":"10.1134/s0022476624040176","DOIUrl":"https://doi.org/10.1134/s0022476624040176","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Structural, electronic, and vibrational properties of phosphates LiCdPO<sub>4</sub>, NaCdPO<sub>4</sub>, RbCdPO<sub>4</sub>, CsCdPO<sub>4</sub> are studied by density functional theory and Hartree–Fock methods using the CRYSTAL17 code in the LCAO basis set with gradient PBE, PBEsol and hybrid PBE0, PBEsol0 functionals. It is shown that the crystal structures contain infinite zigzag chains consisting of [CdO<sub>6</sub>] octahedra and [PO<sub>4</sub>] tetrahedra inside which there are alkali metal atoms. By the Gaussian broadening of normal long-wave modes IR absorption and Raman spectra are calculated. Differences in the number of spectral bands, their polarization and intensities are related to different symmetry space groups of the crystals.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141151936","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. N. Baranov, N. D. Mityushev, A. A. Firsov, E. N. Kabachkov, G. N. Panin
{"title":"Photosensitive Memristor Structures Based on Reduced Graphene Oxide and Carbon Nanoparticles","authors":"A. N. Baranov, N. D. Mityushev, A. A. Firsov, E. N. Kabachkov, G. N. Panin","doi":"10.1134/s002247662404019x","DOIUrl":"https://doi.org/10.1134/s002247662404019x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Photosensitive memristor structures based on graphene oxide reduced under hydrothermal conditions are studied. The wavelength of light absorption in such structures was controlled by carbon nanoparticles deposited on the surface of a graphene oxide film. The obtained structures exhibited photomemristive states that were controlled by light of different wavelengths and bias voltages.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141151867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Self-Assembled Supramolecular Frameworks and Interaction Energy Studies of Acridine and Dihydroxynaphthalene Based Cocrystals","authors":"R. Jagan","doi":"10.1134/s0022476624040085","DOIUrl":"https://doi.org/10.1134/s0022476624040085","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>Three cocrystals of acridine with 2,7-dihydroxynaphthalene (<b>Ia</b> and <b>Ib</b>) in two different polymorphs and 1,5-dihydroxynaphthalene (<b>II</b>) have been synthesized and characterized by single crystal X-ray diffraction method. Two polymorphs of acridine, 2,7-dihydroxynaphthalene cocrystal crystallizes in same space group <span>(Pbar{1})</span> with different unit-cell parameters. In (<b>Ia</b>) the O–H group form a <i>syn-anti</i> conformation whereas in (<b>Ib</b>) the O–H group form an <i>anti-anti</i> conformation leads to the polymorphic structure of acridine, 2,7-dihydroxynaphthalene. This study reveals that the influence of π⋯π and C–H⋯π interactions in the formation of one-, two-, and three-dimensional supramolecular frameworks when the classical hydrogen bonds such as O–H⋯N and C–H⋯O are limited to discrete motifs. The acridine molecules form continuous π⋯π stacking in the crystal structure of <b>(Ia)</b> and discrete π⋯π stacking in the crystal structure of (<b>Ib</b>) and (<b>II</b>). The conformational flexibility of the substituted hydroxy group has an influence in the supramolecular frameworks of the three-dimensional crystal structure. The intermolecular interaction energy calculation between the molecular pairs has been carried out to study the strength of the interaction and its dependence on the geometrical parameters.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141151971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. I. Rakhmanova, K. A. Kokh, N. G. Kononova, A. B. Kuznetsov
{"title":"Crystal Growth and Luminescence Properties of TbGa3(BO3)4 Crystals","authors":"M. I. Rakhmanova, K. A. Kokh, N. G. Kononova, A. B. Kuznetsov","doi":"10.1134/s0022476624040061","DOIUrl":"https://doi.org/10.1134/s0022476624040061","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>TbGa<sub>3</sub>(BO<sub>3</sub>)<sub>4</sub> crystals were grown using the Bi<sub>2</sub>Mo<sub>3</sub>O<sub>12</sub>:B<sub>2</sub>O<sub>3</sub>:Tb<sub>2</sub>O<sub>3</sub> flux, which decreases contamination of Bi in the resulting crystal. The produced compound crystallizes in the <i>R</i>32 space group with unit cell parameters: <i>a</i> = 9.4512(4) Å, <i>c</i> = 7.4532(2) Å. A strong green emission of the luminescence is primarily dominated by the <sup>5</sup><i>D</i><sub>4</sub> to <sup>7</sup><i>F</i><sub>5</sub> transition in Tb<sup>3+</sup>. Annealing these crystals in a hydrogen atmosphere at 800 °C causes a reduction in the luminescence efficiency. On the other hand, annealing in air results in the increment of QY up to the value of 38%.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141151878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retraction Note to: Effects of Substituent Groups on the Crystal Structures and Anti-Cervical Cancer Activity of Zero-/Two-Dimensional Cu(II) Complexes","authors":"Y.-H. Li, L.-X. Gai, C.-G. Zhang, C.-C. Zhang, X.-J. Liu, B. Hou, X. Wu","doi":"10.1134/s002247662403020x","DOIUrl":"https://doi.org/10.1134/s002247662403020x","url":null,"abstract":"<p>This article has been retracted. Please see the Retraction Notice for more detail: https://doi.org/10.1134/S002247662403020X</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140834760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. S. Goloveshkin, E. S. Kulikova, R. A. Novikov, A. V. Vologzhanina, A. A. Korlyukov
{"title":"Crystal Structure of Nilotinib Hydrochloride Monohydrate According to Powder X-Ray Diffraction Data","authors":"A. S. Goloveshkin, E. S. Kulikova, R. A. Novikov, A. V. Vologzhanina, A. A. Korlyukov","doi":"10.1134/s0022476624030132","DOIUrl":"https://doi.org/10.1134/s0022476624030132","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The crystal structure of nilotinib hydrochloride monohydrate, being an active pharmaceutical substance of the drug <i>Tasigna</i> for chronic myeloid leukemia, is determined by powder X-ray diffraction (XRD) using a synchrotron radiation source of the National Research Center “Kurchatov Institute”. The molecular conformation of the cation in the crystal differs from that in the initial nilotinib molecule and its solvates due to the rotation of substituents about single C–N, C–O, and C–C bonds. In the crystal, the nilotinib molecule is protonated at the nitrogen atom of the imidazolium heterocycle and involved in the N–H…N, N–H…O, and N–H…Cl hydrogen bonds with another cation, water molecule, and anion respectively. The resulting structure is determined with high accuracy. Errors in bond lengths are only slightly worse than those for the structures determined from single crystal XRD data. In addition, one of the best values of the half uncertainty window (HUW) is achieved in the refinement. The importance of this parameter is considered in the article. The structure agrees with the solid-state NMR data. The comparison of the results with the solution NMR spectroscopy data reveals noticeable changes in the nilotinib molecular structure during crystallization.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140889851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Retraction Note to: Three New Metal-Organic Coordination Complexes: Crystal Structures and Anticancer Activity in Multiple Myeloma","authors":"Y.-Y. Yang, J.-H. Yang, D. Wang","doi":"10.1134/s002247662403017x","DOIUrl":"https://doi.org/10.1134/s002247662403017x","url":null,"abstract":"<p>This article has been retracted. Please see the Retraction Notice for more detail: https://doi.org/10.1134/S002247662403017X</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140834799","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. A. Bashirov, D. I. Lashchenko, T. S. Sukhikh, S. N. Konchenko
{"title":"Synthesis and Structure of [{Ln(Me2Si(NMes)2)(THF)2}2(μ-L)2] (L = $$mathbf{BH}_{mathbf{4}}^{-}$$ , Ln = Y, Dy; L = PhS–, Ln = Y, Tb, Dy) Complexes","authors":"D. A. Bashirov, D. I. Lashchenko, T. S. Sukhikh, S. N. Konchenko","doi":"10.1134/s0022476624030090","DOIUrl":"https://doi.org/10.1134/s0022476624030090","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>New silanediamide complexes of rare-earth elements are synthesized: [{Dy(Me<sub>2</sub>Si(NMes)<sub>2</sub>)(THF)<sub>2</sub>}<sub>2</sub>(μ-Cl)<sub>2</sub>] (<b>Dy1</b>), [{Ln(Me<sub>2</sub>Si(NMes)<sub>2</sub>)(THF)<sub>2</sub>}<sub>2</sub>(μ-BH<sub>4</sub>)<sub>2</sub>] (<b>Ln2</b>, Ln = Y, Dy), and [{Ln(Me<sub>2</sub>Si(NMes)<sub>2</sub>)(THF)<sub>2</sub>}<sub>2</sub> (μ-SPh)<sub>2</sub>] (<b>Ln3</b>, Ln = Y, Tb, Dy), Mes = 2,4,6-(CH<sub>3</sub>)C<sub>6</sub>H<sub>2</sub>=mesityl. The compounds are isolated as crystalline phases <b>Dy1</b>, <b>Ln2</b> (Ln = Y, Dy), <b>Y3·2THF</b>, <b>Tb3·2C</b><sub><b>7</b></sub><b>H</b><sub><b>8</b></sub>, <b>Dy3·2THF</b>, and <b>Dy3·2C</b><sub><b>7</b></sub><b>H</b><sub><b>8</b></sub> and characterized by single crystal X-ray diffraction. All complexes have a binuclear structure; a silanediamide ligand is chelated to each Ln atom, and Cl<sup>–</sup>, <span>(text{BH}_{4}^{-})</span>, or SPh<sup>–</sup> act as bridges. By photoluminescence spectroscopy of the solutions of Tb and Dy complexes in THF it is shown that (Me<sub>2</sub>Si(NMes)<sub>2</sub>)<sup>2–</sup> is an effective ligand antenna, which sensitizes metal-centered emission of these lanthanides.</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140835027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
W.-X. Huo, X.-T. Liu, Z.-F. Zhang, M. Zhao, Q.-S. Zhang
{"title":"Retraction Note to: A New Co(II)-Containing Coordination Polymer Constructed by the Mixed-Ligand Approach: Crystal Structure and Alleviation of CVB3-Induced Myocarditis by Inhibiting Inflammatory Cytokines Production","authors":"W.-X. Huo, X.-T. Liu, Z.-F. Zhang, M. Zhao, Q.-S. Zhang","doi":"10.1134/s0022476624030235","DOIUrl":"https://doi.org/10.1134/s0022476624030235","url":null,"abstract":"<p>This article has been retracted. Please see the Retraction Notice for more detail: https://doi.org/10.1134/S0022476624030235</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140834795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
I. V. Fedyanin, A. I. Samigullina, E. V. Tretyakov
{"title":"New ε-Polymorphic Modification of 4-Nitrophenyl-Substituted Nitronylnitroxyl","authors":"I. V. Fedyanin, A. I. Samigullina, E. V. Tretyakov","doi":"10.1134/s0022476624030168","DOIUrl":"https://doi.org/10.1134/s0022476624030168","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>A new ε-polymorph of 4,4,5,5-tetramethyl-2-(4-nitrophenyl)-4,5-dihydro-1H-imidazol-3-oxide-1-oxyl is prepared and characterized by single-crystal XRD. The arrays of XRD data have been accumulated and the structures of known α–γ-polymorphs of this paramagnetic are solved under the same conditions. The Hirshfeld surfaces of the crystal structures of the studied polymorphs are analyzed qualitatively and quantitatively. It is shown that the known α–δ-polymorphs contain a supramolecular associate in the form of a centrosymmetric dimer whose molecules are connected by C–H⋯O hydrogen bonds. At the same time, only the ε-polymorph contains π-bonded infinite stacks of nitrophenyl substituents, which in turn determine the formation of short distances between oxygen atoms of nitroxide groups (3.508(2) Å and 3.627(2) Å).</p>","PeriodicalId":668,"journal":{"name":"Journal of Structural Chemistry","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-04-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140834764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}