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1

Shurpik, Dmitriy N., Alan A. Akhmedov, Peter J. Cragg, Vitaliy V. Plemenkov, and Ivan I. Stoikov. "Progress in the Chemistry of Macrocyclic Meroterpenoids." Plants 9, no. 11 (2020): 1582. http://dx.doi.org/10.3390/plants9111582.

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In the last decade, the chemistry of meroterpenoids—conjugated molecules formed from isoprenyl fragments through biosynthetic pathways—has developed rapidly. The class includes some natural metabolites and fully synthetic fragments formed through nonbiological synthesis. In the field of synthetic receptors, a range of structures can be achieved by combining fragments of different classes of organic compounds into one hybrid macrocyclic platform which retains the properties of these fragments. This review discusses the successes in the synthesis and practical application of both natural and syn
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2

Chaudhary, Ashu, and Mamta. "Synergetic and Cooperative Effects in Multimetallic Macrocyclic Complexes for Biological, Catalytic and Magnetic Activity." Asian Journal of Chemistry 34, no. 6 (2022): 1333–46. http://dx.doi.org/10.14233/ajchem.2022.23693.

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The advancement of direct synthetic approaches toward the controllable synthesis of multimetallic complexes turns into an earlier and significant undertaking before the inside and out investigations of novel properties and functions of multimetallic complexes. As an elective methodologies for the synthesis of multimetallic complexes have incorporated the utilization of large macrocycles with more than one binding site and furthermore the connecting of macrocycles through interfacing units. This review highlights the arising patterns in the synthesis and uses of multimetallic macrocyclic comple
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3

Sulekh, Chandra, and Kumar Gupta Lokesh. "Designing and synthesis of macrocyclic Schiff base ligand Study of interaction with MnII, CoII, NiII and Cull and biological screening." Journal of Indian Chemical Society Vol. 82, May 2005 (2005): 454–58. https://doi.org/10.5281/zenodo.5830213.

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Department of Chemistry, Zakir Husain College ( University of Delhi ). J. L. N. Marg, New Delhi- 11&nbsp;0 002. India <em>E-mail</em>: schandra_OO@yahoo.com; lokesh_kg@rcdillmail.com&nbsp; &nbsp; Fax: 91-11-23215906 <em>Manuscript received 17 June 2003, revised 28 July 2004, accepted 2 February 2005</em> The synthesis of a tetradentate ligand i.e. 3,4,12,13-tetrapheny1-2,5,11,1-1,19,20-hexaaza tricyclo[13.3.1.1<sup>6-10</sup>]cosa 1(19),2,4,6,8,10(20),11,13,15,17-decaene (L) and its complexes with manganese(II), cobalt(II), nickel(II) and copper(II) have been reported. The complexes are charac
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4

Bond, AM, and M. Khalifa. "Accessibility of Formally Six-Coordinate Ruthenium(IV) Complexes Generated by Electrochemical Oxidation of Ruthenium(II) Dimethylglyoxime and Related Complexes Containing Phosphorus, Nitrogen or Oxygen Donor Axial Ligands." Australian Journal of Chemistry 41, no. 9 (1988): 1389. http://dx.doi.org/10.1071/ch9881389.

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The chemistry of higher valent ruthenium(IV) complexes has attracted considerable attention because of its possible relevance in catalytic processes and the fact that analogous iron complexes may be biologically important. In this work a range of RuII (N4)(X)(Y) complexes (N4 = nitrogen-based macrocycle or related ligand ; X, Y = axial ligands) has been prepared. It is shown that the presence of macrocyclic type ligands and suitable axial ligands leads to readily accessible six coordinate formally ruthenium(IV) complexes on the voltammetric time scale as ascertained by studies at platinum, gol
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5

Davis, Frank, and Séamus P. J. Higson. "Synthetic Receptors for Early Detection and Treatment of Cancer." Biosensors 13, no. 11 (2023): 953. http://dx.doi.org/10.3390/bios13110953.

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Over recent decades, synthetic macrocyclic compounds have attracted interest from the scientific community due to their ability to selectively and reversibly form complexes with a huge variety of guest moieties. These molecules have been studied within a wide range of sensing and other fields. Within this review, we will give an overview of the most common synthetic macrocyclic compounds including cyclodextrins, calixarenes, calixresorcinarenes, pillarenes and cucurbiturils. These species all display the ability to form a wide range of complexes. This makes these compounds suitable in the fiel
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6

R, C. SHARMA, and AMBWANI JHENDRA. "Synthetic, Structural and Antimicrobial Studies of some Macrocyclic Ligands and their Copper(II) Complexes." Journal of Indian Chemical Society Vol. 72, Aug 1995 (1995): 507–9. https://doi.org/10.5281/zenodo.5905507.

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Department of Chemistry. Institute of Basic&nbsp;Sciences, Khandan Road ( Agra Univarsity). Agra-282 002 <em>Manuscript received </em> 30 August 1993&nbsp;revised 27 January 1994 accepted 9 February 1994 Four new macrocyclic complexes, Cu(DPIH)(BF<sub>4</sub>)<sub>2</sub>, Cu(DPDH)(BF<sub>4</sub>)<sub>2</sub>, Cu(DCI11)(BF<sub>4</sub>)<sub>2</sub> and Cu(DCPDH) (BE<sub>4</sub>)<sub>2</sub>, where DPIH = 2,6-diacetylpyridine-<em>N</em>-iminodiacetoylhydrazone, DPDH = 2,6-diacetylp:sridine-<em>N</em>-rs&shy;ridine-2,6-dicarboxyloylhydrazone, DCIS&nbsp;= 2,6-pyridinedicarbonyldichloride-<em>N</em
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7

WÖHRLE, DIETER. "Porphyrins, phthalocyanines and related systems in polymer phases." Journal of Porphyrins and Phthalocyanines 04, no. 04 (2000): 418–24. http://dx.doi.org/10.1002/(sici)1099-1409(200006/07)4:4<418::aid-jpp239>3.0.co;2-v.

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Macrocyclic ring systems in polymer phases described in this overview are part of the field of macromolecular metal complexes. In this review, first, examples of porphyrins in protein environments being active in biological systems are given. These biological sites are essential to understand the functions of artificial systems. Then a classification and examples of synthetic macromolecular metal complexes based on porphyrins, phthalocyanines and related systems are described.
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8

Sulekh, Chandra, and Kumar Gupta Lokesh. "Synthesis, spectroscopic and biological characterization of the MnII, CoII, NiII and Cull complexes with a new macrocyclic tetradentate [N4] ligand." Journal of India Chemical Society Vol 81, Sep 2004 (2004): 739–44. https://doi.org/10.5281/zenodo.5832584.

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Department of Chemistry, Zakir Husain College (University of Delhi), J. L. N. Marg, New Delhi-110 002, India <em>E-mail</em>: schandra_00@yahoo.com; lokesh_kg@rediffmail.com&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; <em>Fax</em>: 91-11-23215906 <em>Manuscript received 16 April 2003, revised 9 March 2004, accepted 11 May 2004</em> Manganese(ll), cobalt(ll), nickel(II) and copper(II) complexes having the general composition M(L)X<sub>2</sub> (Where M = Mn<sup>II</sup> , Co<sup>II</sup> , Ni<sup>II</sup> and Cu<sup>II</sup> , L =ligand and X stands for Cl and NO<sub>3</sub>) have been prepared wit
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9

Anil, Bansal, and V. Singh R. "Transition metal complexes of tetraazamacrocycles : Synthetic and spectral aspects." Journal of Indian Chemical Society Vol. 78, Feb 2001 (2001): 98–100. https://doi.org/10.5281/zenodo.5849548.

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Department of Chemistry, University of Rajasthan, Jaipur-302 004, India <em>Fax</em>: 91-141-515367 <em>Manuscript received 10 May 2000. revised 3 August 2000, accepted 28 October 2000</em> Nitrogen bonded square-planar complexes of the type [M(mac<sub>1</sub>)]Cl<sub>2</sub> and [M(mac<sub>2</sub>)]Cl<sub>2</sub>, [where M = Pd<sup>II</sup> and Pt<sup>II</sup> ] have been synthesized. The template condensation of adipic acid with primary diamines, i.e. 1,2-diaminoethanc and 1,3-diaminopropane in the presence of metal salts results in the formation of macrocyclic complexes. The complexes are m
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10

Mondal, Dipanjan, and Maravanji S. Balakrishna. "Recent advances in organophosphorus–chalcogen and organophosphorus–pincer based macrocyclic compounds and their metal complexes." Dalton Transactions 50, no. 19 (2021): 6382–409. http://dx.doi.org/10.1039/d1dt00593f.

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11

DeMonte, Kieran, Michael Bennington, Aaron Timothy Marshall, and Sally Brooker. "Immobilized Molecular Catalysts for Heterogeneous Electrochemical H2 Evolution (HER) and CO2 reduction (CO2RR)." ECS Meeting Abstracts MA2024-02, no. 62 (2024): 4229. https://doi.org/10.1149/ma2024-02624229mtgabs.

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The global use of fossil fuels results in unsustainable levels of CO₂ gas being released into the atmosphere, furthering the impacts of global warming.¹ Possible capture of CO₂ from high emission processes and subsequent selective reduction (CO₂ reduction reaction, CO₂RR) to convert it into renewable fuels could move those processes towards carbon neutrality. To move towards carbon zero, green hydrogen is a desirable alternative to fossil fuels. Hydrogen has a higher energy density and only produces water as a waste product. ‘Green’ hydrogen is produced from water using renewable energy (hydro
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12

Soberanes, Yedith, Rosa Elena Navarro, Motomichi Inoue, et al. "Syntheses, Characterization, and Antioxidant Evaluation of Cu2+, Mn2+, and Fe3+ Complexes with a 14 Membered EDTA-Derived Macrocycle." Molecules 24, no. 19 (2019): 3556. http://dx.doi.org/10.3390/molecules24193556.

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The Cu2+, Mn2+, and Fe3+ complexes of a 14 membered macrocycle were synthesized and their antioxidant capacities were evaluated against ABTS and DPPH radicals, with the objective of collecting insights into the biomimetic role of the central metal ions. The macrocycle, abbreviated as H2L14, is a derivative of EDTA cyclized with 1,4-diamine, and the moderately flexible macrocyclic frame permits the formation of [ML14·H2O] chelates with octahedral coordination geometries common among the metal ions. The metal complexes were characterized by electrospray-ionization mass spectrometry, Fourier tran
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13

Chaudhary, Ashu, Anita Phor, Sanjay Sharma, Anita Gajraj, and R. V. Singh. "Synthetic, Biochemical, Antifertility and Antiinflammatory Aspects of Manganese and Iron Complexes." Metal-Based Drugs 9, no. 1-2 (2002): 97–107. http://dx.doi.org/10.1155/mbd.2002.97.

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Manganese(II) and iron(II) macrocyclic complexes of polyamide groups have been synthesized by the template codensation of diamines (2,6 diaminopyridine, 1,2 phenylenediamine and 1,3 phenylenediame) and triamine (diethylenetriamine) with phthalic acid in 1:2:2 molar ratios. On the basis of elemental analysis, IR, electronic, magnetic moment, Mössbauer, mass and X-ray spectral studies, octahedral structure has been assigned to [M(N4macn)Cl2] (M = Mn(II) and Fe(II), n = 1 to 4) complexes. The complexes have been screened in vitro against a number of fungi and bacteria to assess their growth inhib
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14

Bröring, Martin, Carsten D. Brandt, and Serguei Prikhodovski. "Synthetic and structural studies on metal complexes of tripyrrin." Journal of Porphyrins and Phthalocyanines 07, no. 01 (2003): 17–24. http://dx.doi.org/10.1142/s1088424603000045.

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A general two-step procedure for the synthesis of metallotripyrrinates TrpyMOAc f with M = Co(II) , Cu(II) , Zn(II) and Pd(II) , and OAc f = trifluoroacetate, is described, starting from well-known monopyrrolic precursors and simple transition metal acetates. X-ray structural investigations were undertaken on four different complexes, and the results reveal, that the nature of the metal ion, rather than the ligand, determines the coordination geometry of these porphyrin fragment complexes. The finding of pseudotetrahedral and strained pseudoplanar coordination polyhedra at the metal centres ma
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15

Micheloni, Mauro. "Small Synthetic Macrocyclic Cages. Proton Transfer Properties and Metal Complexes." Journal of Coordination Chemistry 18, no. 1-3 (1988): 3–19. http://dx.doi.org/10.1080/00958978808080685.

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16

Ferraudi, G., J. C. Canales, B. Kharisov, et al. "Synthetic N-substituted metal aza-macrocyclic complexes: properties and applications." Journal of Coordination Chemistry 58, no. 1 (2005): 89–109. http://dx.doi.org/10.1080/00958970512331328635.

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17

Yousif, Enaam I., and Hasan A. Hasan. "New Bis(dithiocarbamate) Ligand for Complex Formation; Synthesis, Spectral Analysis and Bacterial Activity." Ibn AL-Haitham Journal For Pure and Applied Sciences 30, no. 1 (2017): 73–87. http://dx.doi.org/10.30526/30.1.1061.

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A range of macrocyclic dinuclear metal (II) dithiocarbamate-based complexes are reported. The preparation of complexes was accomplished from either mixing of the prepared ligand with a metal ion or through a template one-pot reaction. The preparation of the bisamine precursor was achieved through several synthetic steps. The free ligand; potassium 2,2'-(biphenyl-4,4'-diylbis(azanediyl))bis(1-chloro-2-oxoethane-2,1diyl)bis(cyclohexylcarbamodithioate) (L) was yielded from the addition of CS2 to a bis-amine precursor in KOH medium.A variety of analytical and physical methods were implemented to c
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18

Shipra, Srivastava, Srivastava Ankita, Tripathi Namrata, and K. Sharma V. "Mononuclear and binuclear ruthenium(III) complexes of macrocyclic compartmental ligands : synthetic, spectral speciation, electrochemical behaviour and antimicrobial studies." Journal of Indian Chemical Society Vol. 84, Jun 2007 (2007): 524–31. https://doi.org/10.5281/zenodo.5820460.

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Department of Chemistry, University of Lucknow, Lucknow-226 007, Uttar Pradesh, India <em>E-mail </em>: vksharma2l@hotmail.com <em>Manuscript received 26 December 2006, revised 28 March 2007, accepted 30 March 2007</em> The macrocyclic compartmental Schiff base ruthenium(lll) complexes have been synthesized. A variety of complexes have been obtained by different procedures and also depending on the choice of lateral diamine fragments with ruthenium ions. The compounds were characterized by elemental analyses, conductometric and magnetochemical behaviour, as well as by IR, ESR, TG, electrochemi
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19

Berger, Robert M., Shane W. Kelley, and Donald E. Linn. "Simple Micropreparation and Analysis of Macrocyclic Complexes: Synthetic and Electrochemical Properties." Journal of Chemical Education 72, no. 10 (1995): A198. http://dx.doi.org/10.1021/ed072pa198.

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20

Kumar, Umendra, and Sulekh Chandra. "Biological Active Cobalt(II) and Nickel(II) Complexes of 12-Membered Hexaaza [N6] Macrocyclic Ligand Synthetic and Spectroscopic Aspects." E-Journal of Chemistry 7, no. 4 (2010): 1238–45. http://dx.doi.org/10.1155/2010/518723.

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New cobalt(II) and nickel(II) complexes of 12-membered macrocyclic Schiff - base ligand containing thiosemicarbazone moiety as a part of ring have been prepared having general composition [MLX2] where M = Co(II) or Ni(II), L=3,4,9,10–tetra-2-furanyl-1,2,5,6,8,11- hexaazacyclododeca-7,12- dithione - 2,4,8,10 – tetraene, X = Cl-, NO3-, NCS-. The complexes have been characterized by elemental analysis, molar conductance, magnetic susceptibility measurements, spectral (IR, electronic, EPR) techniques and thermal analysis. Spectroscopic studies suggested a six coordinated octahedral geometry for al
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21

Suwinska, Kinga. "Intermolecular interactions in inclusion complexes." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C673. http://dx.doi.org/10.1107/s2053273314093267.

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The whole range of interactions can be found between host and guest in supramolecular assemblies from ion-ion interactions, ion-dipole interactions, dipol-dipol interactions through hydrogen bonding, cation-π interactions, π-π stacking to van der Waals forces. Additionally, the same interactions exist between the supramolecular complex and its surrounding, i.e. solvent molecules, neighboring complexes, gases, etc. Recently the interest of scientists in the field of supramolecular chemistry is focused on design and synthesis of water-soluble synthetic macrocyclic ligands which are good receptor
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22

Neha, Mathur, Bargotya Sonlata, and Saxena Pooja. "Novel complexes of metal surfactants with substituted phenylthiourea and their thermogravimetric properties." Journal of Indian Chemical Society Vol. 92, Jul 2015 (2015): 1137–41. https://doi.org/10.5281/zenodo.5607248.

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Department of Chemistry Govt. P.G. College, Dausa-303 303, Rajasthan, India <em>E-mail</em> : nehavmathur@yahoo.co.in, b.sonlata@gmail.com <em>Manuscript received online 05 October 2014, revised 20 October 2014, accepted 27 October 2014</em> Binuclear macrocyclic metal complexes represent an important and integral class of organic compounds which are well recognised for their multifaceted biological properties and medicinal relevance. They are no doubt the transition metal complexes which have opened new vistas of research in present era of chemistry. Related studies to them would be of immens
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23

Singh, R. V., Ashu Chaudhary, and Anita Phor. "Fertility Inhibitors Macrocyclic Complexes of Bivalent Manganese: Synthetic, Spectroscopic and Medicinal Approach." Bioinorganic Chemistry and Applications 1, no. 3-4 (2003): 233–54. http://dx.doi.org/10.1155/s1565363303000190.

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24

Zhu, Bing, Da-Qing Zhao, Jia-Zuan Ni, Dong Ying, Bai-Qu Huang, and Zeng-Ling Wang. "Lanthanide binuclear macrocyclic complexes as synthetic enzymes for the cleavage of DNA." Journal of Molecular Catalysis A: Chemical 135, no. 1 (1998): 107–10. http://dx.doi.org/10.1016/s1381-1169(98)00175-7.

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25

Kuliukhina, Daria S., Nataliya M. Chernichenko, Alexei D. Averin, Anton S. Abel, Olga A. Maloshitskaya, and Irina P. Beletskaya. "Macrocyclic Compounds Comprising Tris(3-Aminopropyl)Amine Units and Fluorophore Moieties: Synthesis and Spectroscopic Studies in the Presence of Metal Salts." Chemosensors 11, no. 3 (2023): 186. http://dx.doi.org/10.3390/chemosensors11030186.

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The synthesis of a variety of polyazamacrocyclic compounds comprising structural units of tris(3-aminopropyl)amine (TRPN) and oxadiamines, decorated with one or two fluorophore groups (dansyl or quinoline) at different nitrogen atoms, was carried out using Pd(0)-catalyzed amination. The dependence of the yields of the macrocycles on the synthetic path was observed. The spectrophotometric and fluorescent properties of the target compounds were studied, and their coordination with metal cations using UV–vis, fluorescence spectra as well as NMR titration was investigated. The stoichiometry and bi
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26

Olivero, Sandra, Delphine Franco, Jean-Claude Clinet, and Elisabet Duñach. "Electrochemical Reduction of Allyl Ethers in the Presence of Nickel Complexes: A Review of Synthetic Applications." Collection of Czechoslovak Chemical Communications 65, no. 6 (2000): 844–61. http://dx.doi.org/10.1135/cccc20000844.

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This review deals with the electrochemical reactivity of a family of organic compounds, namely allyl ether derivatives, in the presence of various catalytic systems. Essentially, nickel complexes associated with various ligands have been described for such reactions. The electrochemical reduction of allyl aryl ethers has been reported to be very dependent on the nature of the catalytic system. Ni(II) complexes with 2,2'-bipyridine ligands selectively catalyze the cleavage of the O-C(allyl) bond to afford the corresponding alcohol or phenol derivatives in good yields. The related ortho-halogena
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27

Song, Li-Cheng, Yu-Long Li, Ling Li, Zhen-Chao Gu, and Qing-Mei Hu. "Synthetic and Structural Investigations of Linear and Macrocyclic Nickel/Iron/Sulfur Cluster Complexes." Inorganic Chemistry 49, no. 21 (2010): 10174–82. http://dx.doi.org/10.1021/ic101451y.

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28

Podyachev, Sergey N., Rustem R. Zairov, and Asiya R. Mustafina. "1,3-Diketone Calix[4]arene Derivatives—A New Type of Versatile Ligands for Metal Complexes and Nanoparticles." Molecules 26, no. 5 (2021): 1214. http://dx.doi.org/10.3390/molecules26051214.

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The present review is aimed at highlighting outlooks for cyclophanic 1,3-diketones as a new type of versatile ligands and building blocks of the nanomaterial for sensing and bioimaging. Thus, the main synthetic routes for achieving the structural diversity of cyclophanic 1,3-diketones are discussed. The structural diversity is demonstrated by variation of both cyclophanic backbones (calix[4]arene, calix[4]resorcinarene and thiacalix[4]arene) and embedding of different substituents onto lower or upper macrocyclic rims. The structural features of the cyclophanic 1,3-diketones are correlated with
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29

Zvezdina, Svetlana V., Natalya V. Chizhova, Nugzar Zh Mamardashvili, and Oskar I. Koifman. "STUDY OF CADMIUM OCTA(4-METHOXYPHENYL)PORPHYRINATE IN REACTION OF METAL EXCHANGE WITH TIN CHLORIDE IN DMF." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 59, no. 6 (2018): 44. http://dx.doi.org/10.6060/tcct.20165906.5338k.

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Metal-exchange reaction for complexes with macrocyclic ligands refers to a special type of complex coordination interactions. The reaction of metal exchange has founded wide application for the synthesis of complexes of natural and synthetic porphyrins. In the general form, the metal-exchange reaction may be written as follows:MР + M/Xn(Solv)m-n® M/Р + MXn(Solv)m-nwhere МP and M/P are metalloporphyrins, M/Xn(Solv)m-n are metal salts of solvate complexes. Cd-octa(4-methoxyphenyl)porphyrin was obtained by the reaction of octa(4-methoxyphenyl)-porphyrin-ligand with cadmium chloride in the presenc
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R., C. Sharma, Vats Ritika, Singh Shubhra, and Agarwal Sandhya. "Synthetic and structural studies of a novel nitrogen containing dinucleating macrocycle." Journal of Indian Chemical Society Vol. 80, Feb 2003 (2003): 127–28. https://doi.org/10.5281/zenodo.5837045.

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Department of Chemistry, Dr. B. R. Ambedkar University, Institute of Basic Sciences, Khandari, Agra-282 002, India <em>E-mail:</em> ritika_vats@rediffmail.com <em>Manuscript received 1 April 2002, revised 19 September 2002. accepted 20 November 2002</em> N-Bonded octahedral complexes of a new 20-membered dinuclcating anionic macrocyclic ligand 8,9, 10 : 18, 19,20-pyo<sub>2</sub>-3,4,5 : 13, 14, 15-( 4-methylphenoxyh-[20]-1,3,6,8, 11 ,13, 16, 18-octacna to]2-1-1, 7 ,9, 11, 17, 19-N<sub>6</sub> or pyo<sub>2</sub>[20] octaenato- [2-]N<sub>6</sub> have been prepared by condensation of 2,6-diformyl
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31

Palluccio, Taryn, Celeo Colona-Guifarro, and Elena Rybak-Akimova. "Structural Features of Biomimetic Complexes: The Role of Axial Donor Ligands." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1823. http://dx.doi.org/10.1107/s2053273314081777.

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An ongoing theme in our research group involves the development of biomimetic transition metal complexes that serve to activate small molecules, promote reactions similar to those of metalloenzymes, and provide new synthetic routes to novel ligands. In one instance, we have developed models of iron-containing bleomycin that rely on robust tetradentate aminopyridine macrocyclic (PyMAC) ligands. These simple systems serve as rigid scaffolds that are suitable for coordination of transition metal ions and their success as structural and functional models has led to the design and study of more ela
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32

Lodeiro, Carlos, Rufina Bastida, Emilia Bértolo, and Adolfo Rodríguez. "A new family of NxOy pyridine-containing macrocycles: Synthesis and characterization of their Y(III), Ln(III), Zn(II), and Cd(II) coordination compounds." Canadian Journal of Chemistry 82, no. 3 (2004): 437–47. http://dx.doi.org/10.1139/v03-214.

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Reaction between 2,6-bis(2-formylphenoxymethyl)pyridine and N,N-bis(3-aminopropyl)methylamine or tris(2-aminoethyl)amine has been used as the starting point for the synthesis of seven oxa-aza macrocyclic ligands, five of them never reported previously. They all feature different pendant arms, which provide a wide range of coordination possibilities. The Schiff base macrocycles L1 and L4 and their reduced ligands L2 and L5 are derived from 2,6-bis(2-formylphenoxymethyl)pyridine and tris(2-aminoethyl)amine or N,N-bis(3-aminopropyl)methylamine, respectively. The reaction of L1 with salicylaldehyd
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33

Grootenhuis, Peter D. J., Peter D. Van Der Wal, and David N. Reinhoudt. "Thermodynamic stabilities of complexes of synthetic macrocyclic valinomycin mimics with alkali, barium, and guanidinium cations." Tetrahedron 43, no. 2 (1987): 397–404. http://dx.doi.org/10.1016/s0040-4020(01)89969-5.

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34

Eilmes, Julita. "A new synthetic approach to macrocyclic complexes with peripheral substituents carrying carboxyl and ester functions." Polyhedron 7, no. 21 (1988): 2197–200. http://dx.doi.org/10.1016/s0277-5387(00)81803-3.

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35

Cameron, James H., Heather B. Harvey, and Ian Soutar. "Non-symmetrical tetraaza macrocyclic complexes of nickel(II) and their binding to synthetic polymer supports." Journal of the Chemical Society, Dalton Transactions, no. 4 (1992): 597. http://dx.doi.org/10.1039/dt9920000597.

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36

Gorbachuk, Vladimir V., Anna R. Marysheva, and Ivan I. Stoykov. "Total oxidation of decahydroxypillar[5]arene with copper(II) and iron(III) nitrates." Butlerov Communications 63, no. 7 (2020): 19–23. http://dx.doi.org/10.37952/roi-jbc-01/20-63-7-19.

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Pillar[n]arenes are suitable synthetic platforms for synthesis of functionalized p-cyclophanes, versatile building blocks for creating supramolecular polymers and (pseudo)rotaxanes. The presence of hydroquinone fragments in unsubstituted pillar[n]arene derivatives opens wide opportunities for their application in electrochemical sensors and for their use as reducing agents for synthesis of hybrid materials. Macrocyclic cavity plays the key role in molecular recognition, supramolecular self-assembly of pillararenes, and therefore possibility of switching electron donor properties of aromatic mo
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37

Mahammed, Atif, Sachin Kumar, Amit Kumar, Arik Raslin, and Zeev Gross. "Size and Electronic Effects on Redox Potentials and Electrocatalytic Processes Performed by Corrole-Chelated Metal Complexes." ECS Meeting Abstracts MA2024-01, no. 14 (2024): 1123. http://dx.doi.org/10.1149/ma2024-01141123mtgabs.

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The future of our planet critically depends on the introduction of new or improved strategies for developing non-polluting energy production. Leading approaches are the electrocatalytic production of hydrogen gas, development of fuel cells relying on efficient reduction of oxygen and either gaseous or liquid fuels, as well as efficient reduction of carbon dioxide. Metal complexes chelated by N4 macrocycles serve as excellent catalysts in many of these processes, performed at both homogeneous and heterogeneous conditions. Our contributions to those aspect focused on introducing metallocorroles
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Schulz, Jiří, Zdeněk Leitner, Ivana Císařová, and Petr Štěpnička. "Synthesis and Coordination Behavior of a Flexible Bis(phosphinoferrocene) Ligand." Molecules 23, no. 8 (2018): 2054. http://dx.doi.org/10.3390/molecules23082054.

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A symmetrical flexible bis(phosphinoferrocene) derivative, viz. bis[1′-(diphenylphosphino)ferrocenyl]methane (1), was prepared and studied as a ligand in Pd(II) and Au(I) complexes. The reactions of 1 with [PdCl2(cod)] (cod = cycloocta-1,5-diene) and [Pd(μ-Cl)(LNC)]2 (LNC = [2-(dimethylamino-κN)methyl]phenyl-κC1) produced bis(phosphine) complex trans-[PdCl2(1-κ2P,P′)] (4), wherein the ligand spans trans positions in the square-planar coordination sphere of Pd(II) and the tetranuclear, P,P-bridged complex [(μ(P,P′)-1){PdCl(LNC)}2] (5), respectively. In reactions with the Au(I) precursors [AuCl(
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Rivoli, Andrea, Gemma Aragay, María Concepción Gimeno, and Pablo Ballester. "Chloride Binding Properties of a Macrocyclic Receptor Equipped with an Acetylide Gold(I) Complex: Synthesis, Characterization, Reactivity, and Cytotoxicity Studies." Inorganics 10, no. 7 (2022): 95. http://dx.doi.org/10.3390/inorganics10070095.

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In this work, we report the synthesis and characterization of a mono-nuclear “two wall” aryl-extended calix[4]pyrrole receptor (2Au) decorated with an acetylide-gold(I)-PTA complex at its upper rim. We describe the 1H NMR titration experiments of 2Au and its “two wall” aryl-extended calix[4]pyrrole synthetic precursors: the non-symmetric mono-iodo-mono-ethynyl 2 and the symmetric bis-iodo 3 with TBACl in dichloromethane and acetone solution. In acetone solution, we use isothermal titration calorimetry (ITC) experiments to thermodynamically characterize the formed 1:1 chloride complexes and per
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40

Van Staveren, Catherina J., Veronika M. L. J. Aarts, Peter D. J. Grootenhuis, et al. "Synthetic molecular receptors for urea. Macrocyclic ligands with intraannular acidic groups and the complexes with urea." Journal of the American Chemical Society 110, no. 24 (1988): 8134–44. http://dx.doi.org/10.1021/ja00232a028.

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41

Li, Ling, Li-Cheng Song, Miao-Miao Wang, Qian-Li Li, and Hai-Bin Song. "Synthetic and Structural Characterization of Linear and Macrocyclic Ni/Fe/E (E = S, Se) Cluster Complexes." Organometallics 30, no. 18 (2011): 4899–909. http://dx.doi.org/10.1021/om2004767.

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42

Salazar-Medina, Alex J., Enrique F. Velazquez-Contreras, Rocio Sugich-Miranda, et al. "Immune response of human cultured cells towards macrocyclic Fe2PO and Fe2PC bioactive cyclophane complexes." PeerJ 8 (April 20, 2020): e8956. http://dx.doi.org/10.7717/peerj.8956.

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Synthetic molecules that mimic the function of natural enzymes or molecules have untapped potential for use in the next generation of drugs. Cyclic compounds that contain aromatic rings are macrocyclic cyclophanes, and when they coordinate iron ions are of particular interest due to their antioxidant and biomimetic properties. However, little is known about the molecular responses at the cellular level. This study aims to evaluate the changes in immune gene expression in human cells exposed to the cyclophanes Fe2PO and Fe2PC. Confluent human embryonic kidney cells were exposed to either the cy
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43

Tevatia, P., Sweety Sweety, Anuj Anuj, and Randhir Singh. "Studies of Synthetic Macrocyclic Complexes of Co (II) and Mn( II) in the Catalytic Oxidation of Hydroquinones." IOSR Journal of Applied Chemistry 7, no. 9 (2014): 51–53. http://dx.doi.org/10.9790/5736-7915153.

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44

Song, Li-Cheng, Long-Duo Zhang, Bei-Bei Liu, et al. "Synthetic and Structural Studies on Linear and Macrocyclic Pd- and Pt-Bridged Butterfly Fe/S Cluster Complexes." Organometallics 36, no. 7 (2017): 1419–29. http://dx.doi.org/10.1021/acs.organomet.7b00117.

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45

Morrow, Janet R., Lisa A. Buttrey, Valerie M. Shelton, and Kristin A. Berback. "Efficient catalytic cleavage of RNA by lanthanide(III) macrocyclic complexes: toward synthetic nucleases for in vivo applications." Journal of the American Chemical Society 114, no. 5 (1992): 1903–5. http://dx.doi.org/10.1021/ja00031a067.

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46

Raimondi, Angela C., David J. Evans, Tai Hasegawa, Sueli M. Drechsel, and Fábio S. Nunes. "Diruthenium, diiron and mixed ruthenium–iron tetraiminediphenolate macrocyclic complexes: Synthetic route, spectroscopy, molecular mechanics and redox properties." Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy 67, no. 1 (2007): 145–49. http://dx.doi.org/10.1016/j.saa.2006.06.034.

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47

Nabeshima, Tatsuya, Yusuke Chiba, Takashi Nakamura, and Ryota Matsuoka. "Synthesis and Functions of Oligomeric and Multidentate Dipyrrin Derivatives and their Complexes." Synlett 31, no. 17 (2020): 1663–80. http://dx.doi.org/10.1055/s-0040-1707155.

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The dipyrrin–metal complexes and especially the boron complex 4,4-difluoro-4-bora-3a,4a-diaza-s-indacene (BODIPY) have recently attracted considerable attention because of their interesting properties and possible applications. We have developed two unique and useful ways to extend versatility and usefulness of the dipyrrin complexes. The first one is the linear and macrocyclic oligomerization of the BODIPY units. These arrangements of the B–F moieties of the oligomerized BODIPY units provide sophisticated functions, such as unique recognition ability toward cationic guest, associated with cha
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48

Gleason, Catherine E., Pablo D. Garcia, Ranya Odeh, et al. "Abstract 1560: Orally bioavailable macrocycles that target cyclins A and B RxL motifs cause tumor regression in xenograft models and in vitro show activity across multiple cancer types." Cancer Research 83, no. 7_Supplement (2023): 1560. http://dx.doi.org/10.1158/1538-7445.am2023-1560.

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Abstract RB and E2F genes are frequently altered in cancer. Cyclin/Cdk (cyclin-dependent kinase) complexes regulate the activity of RB and E2F to drive cell cycle progression and ensure fidelity of DNA replication. A critical subset of their substrates (Rb, E2F, Cdc6, etc.) requires a short linear motif (RxL) that interacts with the hydrophobic patch on cyclins. Peptides that disrupt the cyclin/RxL interaction were found to be synthetically lethal in cancer cell lines displaying Rb-E2F dysregulation (Chen, 1999). Using structure-guided design, cell-permeable macrocycles were synthesized that s
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49

Chen, Liqin, Laurence K. Thompson, and John N. Bridson. "Coordination chemistry of thioether–pyridazine macrocycles. III. Synthetic, structural, and spectroscopic studies of Cu(II), Cu(II)Cu(I), and Cu(I) complexes of a hexathiapyridazinophane macrocyclic ligand." Canadian Journal of Chemistry 71, no. 7 (1993): 1086–93. http://dx.doi.org/10.1139/v93-144.

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The preparation and properties of the thioether–pyridazine macrocycle (L4; C16H20S6N4) containing two pyridazine subunits, and its Cu(II), Cu(II)Cu(I), and Cu(I) complexes are described. The ligand is characterized by 1H nuclear magnetic resonance and mass spectrometry, and the complexes by infrared, eleetronic spectra, and magnetism, and in some cases by X-ray crystallography. The complex [Cu2(L4)Cl4]x, (1) crystallized in the triclinic system, space group [Formula: see text] with a = 8.6204(8) Å, b = 9.850(1) Å, c = 8.348(1) Å, α = 111.46(1)°, β = 102.50(1)°, γ = 71.818(9)°, V = 622.6(1) Å3,
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50

Kustova, Tatyana V., Elena A. Rogova, and Alexander M. Sinitsyn. "SYNTHESIS OF GALLIUM COMPLEXES OF TERT-BUTYLSUBSTITUTED ACYCLIC AND CYCLIC COMPOUNDS BASED ON 3,5-DIAMINO-1,2,4-TRIAZOLE." IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENII KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA 63, no. 5 (2020): 45–50. http://dx.doi.org/10.6060/ivkkt.20206305.6219.

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Synthetic methods of organic chemistry which are currently available in scientific literature allow obtaining a large number macroheterocycles with structurally different internal coordination cavities. They also provide a number of convenient ways to attach to a macrocyclic platform various biologically active heterocyclic fragments such as guanazol. This paper discusses the synthesis and composition of gallium complexes of cyclic and acyclic compounds based on 3,5-diamino-1H-1,2,4-triazol (guanazol), which is itself widely used in medical practice and, most importantly, for the treatment of
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