{"title":"OLGA GRIGORYEVNA KHELEVINA – TEACHER, MENTOR AND SCIENTIST","authors":"O. Koifman, A. Malyasova, P. Stuzhin","doi":"10.6060/mhc210393k","DOIUrl":"https://doi.org/10.6060/mhc210393k","url":null,"abstract":"","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166717","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. Zvyagina, Alena D. Naumova, N. Kuzmina, A. Martynov, Yulia G. Gorbunova, M. Kalinina
The development of feasible strategies for integrating 1D organic semiconductors into films is a challenging issue for organic electronics exploiting planar architectures of microelectronic devices. Herein we describe the method of planar organization of 1D supramolecular aggregates assembled from lutetium crown-substituted double-decker phthalocyaninate into ordered ultrathin films. The method utilizes the Langmuir-Blodgett technique in combination with adding tert-butylamine during the synthesis of the supramolecular aggregates. The atomic force microscopy examination of the resulting films shows that the introduction of surfactant promotes spreading of hydrophobic aggregates on the water subphase yielding ordered ultrathin layers. The size of aggregates can be controlled by varying the ratio of the phthalocyanine ligands and surfactant in the system. The size of the aggregates increases with the concentration of the surfactant, whereas the morphology of the films evolves from a filamentary continuous structure to individual nanowires immobilized in the surfactant layer. The proposed strategy can be used to obtain ordered coatings from 1D aggregates from various organic discotics with semiconductor properties.
{"title":"Surfactant-Assisted Lateral Self-Assembly of One-Dimensional Supramolecular Aggregates of Lutetium Double-Decker Phthalocyaninates","authors":"A. Zvyagina, Alena D. Naumova, N. Kuzmina, A. Martynov, Yulia G. Gorbunova, M. Kalinina","doi":"10.6060/mhc210233k","DOIUrl":"https://doi.org/10.6060/mhc210233k","url":null,"abstract":"The development of feasible strategies for integrating 1D organic semiconductors into films is a challenging issue for organic electronics exploiting planar architectures of microelectronic devices. Herein we describe the method of planar organization of 1D supramolecular aggregates assembled from lutetium crown-substituted double-decker phthalocyaninate into ordered ultrathin films. The method utilizes the Langmuir-Blodgett technique in combination with adding tert-butylamine during the synthesis of the supramolecular aggregates. The atomic force microscopy examination of the resulting films shows that the introduction of surfactant promotes spreading of hydrophobic aggregates on the water subphase yielding ordered ultrathin layers. The size of aggregates can be controlled by varying the ratio of the phthalocyanine ligands and surfactant in the system. The size of the aggregates increases with the concentration of the surfactant, whereas the morphology of the films evolves from a filamentary continuous structure to individual nanowires immobilized in the surfactant layer. The proposed strategy can be used to obtain ordered coatings from 1D aggregates from various organic discotics with semiconductor properties.","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166756","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}
Y. Pylina, I. Khudyaeva, O. Startseva, D. Shadrin, O. G. Shevchenko, I. Velegzhaninov, N. V. Kukushkina, D. B. Berezin, D. V. Belykh
Dark and photoinduced toxicity of several novel and previously described derivatives of chlorin e 6 with tetraalkylammonium substituents differing from each other in number of cationic groups and their location in the macrocycle were studied in HeLa cells and mammalian erythrocytes. The optimal design of cationic derivatives of chlorin e 6 that provides the most efficient photodynamic effect was shown to require the localization of cationic substituents in the same part of the molecule. In combination with the hydrophobicity of the chlorin macrocycle, it increases the amphiphilic properties of the whole molecule and enhances its interaction with biomembranes. incubated 3 h thermostatic shaker corresponding volume of 0.2 % DMSO. The of pho activity inferred based on the degree of erythrocyte hemolysis after 1 and 3 h of incubation at constant irradiation of cells with the red light at wavelength of 660 nm (light source LEDs with a power of 60 mW each). The of cytotox inferred on the degree of hemolysis after 1 and 3 h of incubation of erythrocytes in the
{"title":"Dark and Photoinduced Cytotoxicity of Cationic Chlorin e6 Derivatives with Different Numbers of Charged Groups","authors":"Y. Pylina, I. Khudyaeva, O. Startseva, D. Shadrin, O. G. Shevchenko, I. Velegzhaninov, N. V. Kukushkina, D. B. Berezin, D. V. Belykh","doi":"10.6060/mhc210944b","DOIUrl":"https://doi.org/10.6060/mhc210944b","url":null,"abstract":"Dark and photoinduced toxicity of several novel and previously described derivatives of chlorin e 6 with tetraalkylammonium substituents differing from each other in number of cationic groups and their location in the macrocycle were studied in HeLa cells and mammalian erythrocytes. The optimal design of cationic derivatives of chlorin e 6 that provides the most efficient photodynamic effect was shown to require the localization of cationic substituents in the same part of the molecule. In combination with the hydrophobicity of the chlorin macrocycle, it increases the amphiphilic properties of the whole molecule and enhances its interaction with biomembranes. incubated 3 h thermostatic shaker corresponding volume of 0.2 % DMSO. The of pho activity inferred based on the degree of erythrocyte hemolysis after 1 and 3 h of incubation at constant irradiation of cells with the red light at wavelength of 660 nm (light source LEDs with a power of 60 mW each). The of cytotox inferred on the degree of hemolysis after 1 and 3 h of incubation of erythrocytes in the","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71167101","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}
P. Ostroverkhov, N. Kirin, S. Tikhonov, Maxim N. Usachev, O. Abramova, M. A. Kaplan, A. Mironov, M. Grin
{"title":"Guanidine and Biguanidine Derivatives of Natural Chlorins: Synthesis and Biological Assessment","authors":"P. Ostroverkhov, N. Kirin, S. Tikhonov, Maxim N. Usachev, O. Abramova, M. A. Kaplan, A. Mironov, M. Grin","doi":"10.6060/mhc224071o","DOIUrl":"https://doi.org/10.6060/mhc224071o","url":null,"abstract":"","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71167637","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. Skvortsov, Alina M. Fazlyeva, N. Somov, P. Stuzhin
{"title":"Molecular Structure of 2,3-Dicyano-5,7,7-trimethyl-6,7-dihydro-1H-1,4-diazepine - Precursor of pH-Sensitive Porphyrazines","authors":"I. Skvortsov, Alina M. Fazlyeva, N. Somov, P. Stuzhin","doi":"10.6060/mhc210750s","DOIUrl":"https://doi.org/10.6060/mhc210750s","url":null,"abstract":"","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71167331","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}
Roman A. Selin, V. Chernii, D. V. Kryvorotenko, A. Mokhir, Y. Voloshin
{"title":"Esterification vs. 1,3-Dipolar Cycloaddition Synthetic Approaches for Preparation of the Fluorescently Labelled Iron(II) Clathrochelates","authors":"Roman A. Selin, V. Chernii, D. V. Kryvorotenko, A. Mokhir, Y. Voloshin","doi":"10.6060/mhc201230v","DOIUrl":"https://doi.org/10.6060/mhc201230v","url":null,"abstract":"","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166448","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}
Nadia Mesri, Y. Belhocine, N. Messikh, A. Sayede, B. Mouffok
The complexation process between benzo[a]pyrene (BaP) and γ-cyclodextrin (γ-CD) was computationally studied using DFT methodology. Several initial configurations of the interaction of BaP with γ-CD were explored to determine the most stable inclusion complex. According to the calculated complexation energies, the BaP/γ-CD complex is found to be the most favorable energetically when the BaP guest is totally entrapped into γ-CD cavity. The inclusion process involving the encapsulation of two guests BaP in the cavity of γ-CD is also thermodynamically favored. Van der Waals interactions play a determinant role in stabilizing BaP/γ-CD and 2BaP/γ-CD complexes. benzo[a]pyrene, inclusion complex, DFT calculations, Van der Waals interactions.
{"title":"Molecular DFT Investigation on the Inclusion Complexation of Benzo[a]pyrene with γ-Cyclodextrin","authors":"Nadia Mesri, Y. Belhocine, N. Messikh, A. Sayede, B. Mouffok","doi":"10.6060/mhc210337m","DOIUrl":"https://doi.org/10.6060/mhc210337m","url":null,"abstract":"The complexation process between benzo[a]pyrene (BaP) and γ-cyclodextrin (γ-CD) was computationally studied using DFT methodology. Several initial configurations of the interaction of BaP with γ-CD were explored to determine the most stable inclusion complex. According to the calculated complexation energies, the BaP/γ-CD complex is found to be the most favorable energetically when the BaP guest is totally entrapped into γ-CD cavity. The inclusion process involving the encapsulation of two guests BaP in the cavity of γ-CD is also thermodynamically favored. Van der Waals interactions play a determinant role in stabilizing BaP/γ-CD and 2BaP/γ-CD complexes. benzo[a]pyrene, inclusion complex, DFT calculations, Van der Waals interactions.","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166561","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. S. Kutsybala, A. Shokurov, A. P. Kroitor, A. Martynov, S. L. Selektor, A. Tsivadze, Yulia G. Gorbunova
Current research in sandwich phthalocyaninates enjoys increasing interest due to peculiar properties of these compounds, i.e. their intense coloration and ability to change and control it via redox processes. Obviously, such effect found its application in development of electrochromic devices. In the case of commonly studied rare earth element bisphthalocyaninates, the most dominant electrochromic palette observed for them lies within the red-green-blue gamut. In this work, we report that an unusual sandwich – covalently-bridged µ-carbido diruthenium(IV) bisphthalocyaninate – exhibits equally unusual color changes upon its reversible electrochemical oxidation/reduction, namely switching from cyan to purple. The study provides a detailed spectroelectrochemical characterization of this µ-carbido-dimeric complex in solution, in thin cast and ultrathin Langmuir-Schaefer films, which all demonstrate aforementioned variable vibrant coloration in action.
{"title":"Unusual Cyan-Purple Electrochromism of Sandwich Phthalocyaninates Observed on the Example of µ-Carbido Diruthenium(IV) Complex","authors":"D. S. Kutsybala, A. Shokurov, A. P. Kroitor, A. Martynov, S. L. Selektor, A. Tsivadze, Yulia G. Gorbunova","doi":"10.6060/mhc210234s","DOIUrl":"https://doi.org/10.6060/mhc210234s","url":null,"abstract":"Current research in sandwich phthalocyaninates enjoys increasing interest due to peculiar properties of these compounds, i.e. their intense coloration and ability to change and control it via redox processes. Obviously, such effect found its application in development of electrochromic devices. In the case of commonly studied rare earth element bisphthalocyaninates, the most dominant electrochromic palette observed for them lies within the red-green-blue gamut. In this work, we report that an unusual sandwich – covalently-bridged µ-carbido diruthenium(IV) bisphthalocyaninate – exhibits equally unusual color changes upon its reversible electrochemical oxidation/reduction, namely switching from cyan to purple. The study provides a detailed spectroelectrochemical characterization of this µ-carbido-dimeric complex in solution, in thin cast and ultrathin Langmuir-Schaefer films, which all demonstrate aforementioned variable vibrant coloration in action.","PeriodicalId":18090,"journal":{"name":"Macroheterocycles","volume":null,"pages":null},"PeriodicalIF":1.4,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"71166992","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}
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