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Journal articles on the topic 'Phenanthroline'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Nycz, Wantulok, Sokolova, et al. "Synthesis and Electrochemical and Spectroscopic Characterization of 4,7-diamino-1,10-phenanthrolines and Their Precursors." Molecules 24, no. 22 (2019): 4102. http://dx.doi.org/10.3390/molecules24224102.

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New approaches to the synthesis of 4,7-dichloro-1,10-phenanthrolines and their corresponding 9H-carbazol-9-yl-, 10H-phenothiazin-10-yl- and pyrrolidin-1-yl derivatives were developed. Their properties have been characterized by a combination of several techniques: MS, HRMS, GC-MS, electronic absorption spectroscopy and multinuclear NMR in both solution and solid state including 15N CP/MAS NMR. The structures of 5-fluoro-2,9-dimethyl-4,7-di(pyrrolidin-1-yl)-1,10-phenanthroline (5d), 4,7-di(9H-carbazol-9-yl)-9-oxo-9,10-dihydro-1,10-phenanthroline-5-carbonitrile (6a) and 4,7-di(10H-phenothiazin-1

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2

Paira, Rupankar, Tarique Anwar, Maitreyee Banerjee, et al. "Copper–phenanthroline catalysts for regioselective synthesis of pyrrolo[3′,4′:3,4]pyrrolo[1,2-a]furoquinolines/phenanthrolines and of pyrrolo[1,2-a]phenanthrolines under mild conditions." Beilstein Journal of Organic Chemistry 10 (March 20, 2014): 692–700. http://dx.doi.org/10.3762/bjoc.10.62.

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A new series of pyrrolo[3′,4′:3,4]pyrrolo[1,2-a]furoquinolines/phenanthrolines and pyrrolo[1,2-a]phenanthrolines were efficiently built up from an 8-hydroxyquinoline derivative or phenanthroline via 1,3-dipolar cycloaddition reaction involving non-stabilized azomethine ylides, generated in situ from the parent furo[3,2-h]quinoliniums/phenanthroliums, in presence of a copper(II) chloride–phenanthroline catalytic system. The methodology combines general applicability with high yields.

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3

Garypidou, Antonia, Konstantinos Ypsilantis, Evaggelia Sifnaiou та ін. "Synthesis, Characterization and Photophysical Properties of Mixed Ligand (η3-Allyl)palladium(II) Complexes with N,N’Aromatic Diimines". Chemistry 5, № 4 (2023): 2476–89. http://dx.doi.org/10.3390/chemistry5040162.

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Palladium(II) complexes of the general formula [Pd(η3-C3H5)(L)](PF6), where L is 4,7-diphenyl-1,10-phenanthroline (1), 2,9-dimethyl-1,10-phenanthroline (2), 2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline (3), 5-methyl-1,10-phenanthroline (4), 3,4,7,8-tetramethyl-1,10-phenanthroline (5), and 2-(2′-pyridyl) quinoxaline (6), were synthesized and characterized using high-resolution ESI-MS, NMR techniques and, in the case of (6), single-crystal X-ray diffraction methods. In addition, their photophysical properties were investigated. Complexes (1)–(6) were emitted in the greenish-blue region, with th

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4

Holan, G., and GT Wernert. "The Synthesis of 1,10-Phenanthroline Esters Containing Unsaturated C18 Side Chains." Australian Journal of Chemistry 40, no. 5 (1987): 873. http://dx.doi.org/10.1071/ch9870873.

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Octadeca-6,9,12-trienyl 3,4,7,8-tetramethyl-1,10-phenanthroline-2-carboxylate and 3,7,8-tri-methyl- 1,10-phenanthrolin-4-ylmethyl octadeca-9,12,15-trienoate have been synthesized. Furthermore, two series of 1,10-phenanthroline esters substituted in the 2-position with C18 unsaturated side chains have also been synthesized.

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5

Ustynyuk, Yu A., V. S. Petrov, P. S. Lemport, V. A. Roznyatovsky, and V. G. Nenajdenko. "New Macrocyclic Bis-1,10-phenanthroline-2,9-dicarboxamides. Synthesis and Stereodynamics in Solution." Russian Journal of Organic Chemistry 59, no. 10 (2023): 1709–13. http://dx.doi.org/10.1134/s1070428023100056.

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Abstract New macrocyclic 1,10-phenanthroline-2,9-dicarboxamide derivatives containing two phenanthroline cores were synthesized, and their structure was confirmed by NMR spectroscopy and other methods. The new macrocyclic phenanthrolines showed a complex stereodynamic behavior in solution, which was studied by 1H NMR spectroscopy at different temperatures.

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6

Ustynyuk, Yu A., V. S. Petrov, P. S. Lemport, V. A. Roznyatovsky, and V. G. Nenajdenko. "New macrocyclic bis-1,10-phenanthroline-2,9-diamides. synthesis and stereodynamics in solutions." Журнал органической химии 59, no. 10 (2023): 1357–62. http://dx.doi.org/10.31857/s0514749223100063.

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New examples of macrocyclic 1,10-phenanthroline-2,9-diamides containing simultaneously two phenanthroline moiety in their structure have been obtained. The structure of the obtained compounds was confirmed by NMR spectroscopy and other methods. New macrocyclic phenanthrolines expectedly exhibit complex stereodynamic behavior in solutions. This effect was studied using 1H NMR spectroscopy at various temperatures.

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7

Salam, Shahana, and Rakesh Kumar Jat. "Imidazole Phenanthroline Derivatives: A Promising Application in Modern Medicine." Journal of Drug Delivery and Therapeutics 15, no. 6 (2025): 102–10. https://doi.org/10.22270/jddt.v15i6.7230.

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Purpose: The primary objective of this study is to create a new class of imidazole phenanthroline compounds that target the 1,10-phenanthroline core for its antifungal and antibacterial properties. Methods: Commercially available 1,10-phenanthroline (phen) was nitrated with potassium bromide in the presence of sulfuric and nitric acids to get 1,10-phenanthroline-5,6-dione (phendione), an intermediate molecule, which served as the starting compound for the synthesis of 1H-imidazo [4,5-f] [1,10] phenanthroline compounds. This intermediate product was dissolved in glacial acetic acid and then rea

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8

Butler, Ian R., and Jean-Louis Roustan. "The synthesis of dipridyl- and 1,10-phenanthrolylferrocenes and bis-N,N′-(2,2′-dipyridyl(6-ferrocenyl-N,N′-2,2′-dipyridyl))ruthenium dichloride." Canadian Journal of Chemistry 68, no. 12 (1990): 2212–15. http://dx.doi.org/10.1139/v90-339.

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Ferrocenyldipyridyls and ferrocenyl-o-phenanthrolines have been synthesized by the direct reaction of lithioferrocenes with the appropriate dipyridine or 1,10-phenanthroline. The spectroscopic properties of these potential new ligands are described and the synthesis of bis-2,2′-dipyridyl(6-ferrocenyl-2,2′-dipyridyl)ruthenium dichloride, 8, in its hydrated form is reported. Keywords: ferrocene, dipyridine, phenanthroline, ruthenium.

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9

Levis, Michael, Ulrich Lüning, Michael Müller, Michael Schmittel, and Clemens Wöhrle. "Tris(1,10-phenanthroIine)iron(II) Complexes. Influence of 4,7-Donor Substitution on the Redox Potential [1]." Zeitschrift für Naturforschung B 49, no. 5 (1994): 675–82. http://dx.doi.org/10.1515/znb-1994-0519.

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Several new 4.7-donor substituted 1.10-phenanthrolines were synthesized and the corresponding tris(1,10-phenanthroline)iron(II) complexes were studied by cyclic voltammetry. All iron(II) complexes showed fully reversible waves at scan rates between 50 and 500 mV/s. For some redox systems the kinetics in their reaction with chlorine was studied. Complexes 7k and 71 significantly extent the potential range of tris(1,10-phenanthroline)iron(II) complexes.

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10

Krause, Jeanette A., Daoli Zhao, Sayandev Chatterjee, et al. "In-house and synchrotron X-ray diffraction studies of 2-phenyl-1,10-phenanthroline, protonated salts, complexes with gold(III) and copper(II), and an orthometallation product with palladium(II)." Acta Crystallographica Section C Structural Chemistry 70, no. 3 (2014): 260–66. http://dx.doi.org/10.1107/s2053229614001843.

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Different salts of the 2-phenyl-1,10-phenanthrolin-1-ium cation, (pnpH)+, are obtained by reacting 2-phenyl-1,10-phenanthroline (pnp), C18H12N2, (I), with a variety of anions, such as hexafluoridophosphate, C18H13N2+·PF6−, (II), trifluoromethanesulfonate, C18H13N2+·CF3SO3−, (III), tetrachloridoaurate, (C18H13N2)[AuCl4], (IV), and bromide (as the dihydrate), C18H13N2+·Br−·2H2O, (V). Compound (I) crystallizes withZ′ = 2, with both independent molecules adopting a coplanar conformation. In (II)–(IV), a hydrogen bond exists between the cation and anion, while one of the lattice water molecules ser

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11

Al, Matarneh, Catalina Ciobanu, Ionel Mangalagiu, and Ramona Danac. "Design, synthesis and antimycobacterial evaluation of some new azaheterocycles with the 4,7-phenanthroline skeleton. Part VI." Journal of the Serbian Chemical Society 81, no. 2 (2016): 133–40. http://dx.doi.org/10.2298/jsc150514084a.

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A feasible study concerning the synthesis, structure and in vitro antimycobacterial evaluation of new 4,7-phenanthroline derivatives is reported. The preparation is straight and efficient, involving an N-alkylation reaction of 4,7-phenanthroline. The structure of the new compounds have been proved by elemental and spectral (IR, 1H and 13C NMR) analysis. The in vitro antimycobacterial evaluation of five synthesized compounds was investigated against Mycobacterium tuberculosis H37Rv under aerobic conditions. A certain influence of substituents from the para position of the benzoyl moiety was obs

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12

Nycz, Jacek E., Natalia Martsinovich, Jakub Wantulok, Tieqiao Chen, Maria Książek, and Joachim Kusz. "Synthesis and Spectroscopic Characterization of Selected Water-Soluble Ligands Based on 1,10-Phenanthroline Core." Molecules 29, no. 6 (2024): 1341. http://dx.doi.org/10.3390/molecules29061341.

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Water-soluble ligands based on a 1,10-phenanthroline core are relatively poorly studied compounds. Developing efficient and convenient syntheses of them would result in new interesting applications because of the importance of 1,10-phenanthrolines. In this manuscript, we describe novel and practical ways to introduce a carboxyl and, for the first time, a phenol and dithiocarboxyl group under mild reaction conditions. This strategy enables highly efficient and practical synthesis of suitable organosulfur compounds with high added value, high chemoselectivity, and a broad substrate range. We pre

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13

Astakhov, Grigorii, Mikhail Levitsky, Alexander Korlyukov, et al. "New Cu4Na4- and Cu5-Based Phenylsilsesquioxanes. Synthesis via Complexation with 1,10-Phenanthroline, Structures and High Catalytic Activity in Alkane Oxidations with Peroxides in Acetonitrile." Catalysts 9, no. 9 (2019): 701. http://dx.doi.org/10.3390/catal9090701.

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Self-assembly of copper(II)phenylsilsesquioxane assisted by the use of 1,10-phenanthroline (phen) results in isolation of two unusual cage-like compounds: (PhSiO1,5)12(CuO)4(NaO0.5)4(phen)4 1 and (PhSiO1,5)6(PhSiO1,5)7(HO0.5)2(CuO)5(O0.25)2(phen)3 2. X-Ray diffraction study revealed extraordinaire molecular architectures of both products. Namely, complex 1 includes single cyclic (PhSiO1,5)12 silsesquioxane ligand. Four sodium ions of 1 are additionally ligated by 1,10-phenanthrolines. In turn, “sodium-less” complex 2 represents coordination of 1,10-phenanthrolines to copper ions. Two silsesqui

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14

Al-Matarneh, Cristina, Irina Rosca, Sergiu Shova, and Ramona Danac. "Synthesis and properties of new fused pyrrolo-1,10-phenanthroline type derivatives." Journal of the Serbian Chemical Society, no. 00 (2021): 57. http://dx.doi.org/10.2298/jsc200819057a.

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New fused pyrrolo-phenanthroline type derivatives were synthesized, in two steps, from 1,10-phenanthroline and evaluated for antimicrobial activity and fluorescence properties. Our synthetic approach involved a 3+2 dipolar-cycloaddition of some selected N-substituted 1,10-phenanthrolin-1-ium ylides, (m)ethoxycarbonyl and cyano (1,2-di)substituted acetylenes and alkenes, respectively. The structures of compounds were supported by analytical and spectroscopic data. The molecular structures of four selected compounds have also been also determined by monocrystal XRD analyses. All synthesized comp

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15

Morozkov, Gleb V., Artem A. Troickiy, Alexei D. Averin, Alexander Yu Mitrofanov, Anton S. Abel, and Irina P. Beletskaya. "Visible Light Photoredox Catalysis in the Synthesis of Phosphonate-Substituted 1,10-Phenanthrolines." Molecules 29, no. 23 (2024): 5558. http://dx.doi.org/10.3390/molecules29235558.

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Photoredox-catalyzed phosphonylation of bromo-substituted 1,10-phenanthrolines under visible light irradiation was studied. The reaction was shown to proceed under mild conditions with Eosin Y as a photocatalyst in DMSO under blue light irradiation. It is transition-metal-free and affords the target phosphonate-substituted 1,10-phenanthrolines in moderate yields (26–51%) in 22 to 40 h. The rate and selectivity of the reaction depend largely on the position of the bromine atom, as well as on the nature and position of other substituents in the 1,10-phenanthroline core.

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16

Devereux, Michael, Malachy McCann, Vanessa Leon, Majella Geraghty, Vickie McKee, and Jan Wikaira. "Synthesis and Biological Activity of Manganese (II) Complexes of Phthalic and Isophthalic Acid: X-Ray Crystal Structures of [Mn(ph)(Phen)2(H2O)]· 4H2O, [Mn(Phen)2(H2O)2]2(Isoph)2(Phen)· 12H2O and {[Mn(Isoph)(bipy)]4· 2.75biby}n(phH2 = Phthalic Acid; isoph = Isophthalic Acid; phen = 1,10-Phenanthroline; bipy = 2,2-Bipyridine)." Metal-Based Drugs 7, no. 5 (2000): 275–88. http://dx.doi.org/10.1155/mbd.2000.275.

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Manganese(II) acetate reacts with phthalic acid (phH2) to give [Mn(ph)]·0.5H2O (1). Reaction of 1 with 1,10-phenanthroline produces [Mn(ph)(phen)]·2H2O (2) and [Mn(ph)(phen)2(H2O)]·4H2O (3). Reaction of isophthalic acid (isophH2) with manganese(II) acetate results in the formation of [Mn(isoph)]·2H2O (4). The addition of the N,N-donor ligands 1,10-phenanthroline or 2,2'-bipyridine to 4 leads to the formation of [Mn2 (isoph)2(phen)3)]·4H2O (5), [(Mn(phen)2(H2O)2]2(isoph)2(phen)·12H2O (6) and {[Mn(isoph)(bipy)]4·2.75 biby}n (7), respectively. Molecular structures of 3, 6 and 7 were determined cr

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17

Silva-Caldeira, Priscila Pereira, Antônio Carlos Almendagna de Oliveira Junior, and Elene Cristina Pereira-Maia. "Photocytotoxic Activity of Ruthenium(II) Complexes with Phenanthroline-Hydrazone Ligands." Molecules 26, no. 7 (2021): 2084. http://dx.doi.org/10.3390/molecules26072084.

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This paper reports on the synthesis and characterization of two new polypyridyl-hydrazone Schiff bases, (E)-N′-(6-oxo-1,10-phenanthrolin-5(6H)-ylidene)thiophene-2-carbohydrazide (L1) and (E)-N′-(6-oxo-1,10-phenanthrolin-5(6H)-ylidene)furan-2-carbohydrazide (L2), and their two Ru(II) complexes of the general formula [RuCl(DMSO)(phen)(Ln)](PF6). Considering that hydrazides are a structural part of severa l drugs and metal complexes containing phenanthroline derivatives are known to interact with DNA and to exhibit antitumor activity, more potent anticancer agents can be obtained by covalently li

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18

Saitoh, Yutaka, Take-aki Koizumi, Kohtaro Osakada, and Takakazu Yamamoto. "Preparation of symmetric dibromides of 1,10-phenanthroline." Canadian Journal of Chemistry 75, no. 10 (1997): 1336–39. http://dx.doi.org/10.1139/v97-160.

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Bromation of 1,10-phenanthroline with Br2 proceeds smoothly in the presence of S2Cl2 and pyridine to give 3,8-dibromo-1,10-phenanthroline in good yield. Bromation of 2,9-dibutoxy-1,10-phenanthroline with Br2, in an aqueous medium gives 5,6-dibromo-2,9-dibutoxy-1,10-phenanthroline selectively. Similar bromination of 4,7-dibutoxy-1,10-phenanthroline with Br2 gives 3,8-dibromo-4,7-dibutoxy-1,10-phenanthroline, which forms a 1:1 adduct with Cu(NO3)2. Molecular structure of the 1:1 adduct has been determined by X-ray crystallography. Keywords: bromination, 1,10-phenanthroline, 3,8-dibromo-1,10-phen

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19

Golubeva, Yu A., K. S. Smirnova, L. S. Klyushova, A. S. Berezin, and E. V. Lider. "Cytotoxic Copper(II) Complexes Based on 2,2'-Bipyridine/1,10- Phenanthroline and 5-(4-Chlorophenyl)-1H-tetrazole: Synthesis and Structures." Координационная химия 49, no. 9 (2023): 516–29. http://dx.doi.org/10.31857/s0132344x2260062x.

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Five coordination compounds [Cu2(Bipy)2L4]·C2H5OH (Iа, Ib), [Cu2(Dmbipy)2L4] (II),[Cu2(Phen)2L4]·H2O (IIIa), [Cu2(Dmphen)2L4] (IVa), and [Cu2(Phendione’)2L4]·2C2H5OH·2H2O (V) aresynthesized from 5-(4-chlorophenyl)-1H-tetrazole (HL), where Bipy is 2,2'-bipyridine, Dmbipy is 4,4'-dimethyl-2,2'-bipyridine, Phen is 1,10-phenanthroline, Dmphen is 4,7-dimethyl-1,10-phenanthroline, andPhendione’ is 6-ethoxy-6-hydroxy-1,10-phenanthrolin-5-one. The crystal structures of the complexes aredetermined by X-ray diffraction (XRD) of single crystals (CIF files CCDC nos. 2225368 (Ia), 2225369 (Ib),2225370 (II)

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20

Sharrock, Patrick. "Bacteristatic activity of phenanthrolines against Escherichia coli and Bacillus subtilis." Canadian Journal of Microbiology 31, no. 4 (1985): 367–70. http://dx.doi.org/10.1139/m85-070.

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Using optical turbidimetry to measure the growth of Escherichia coli and Bacillus subtilis, we determined the mean lethal dose (LD50) values for various phenanthrolines. The dimethyl-substituted compounds are found to be more toxic to bacteria, with doses near 5 μg/mL reducing the number of viable cells by 50% over a 24-h period. 2,9-Dimethyl phenanthroline is the most potent compound against B. subtilis, being six times more effective than against E. coli. Bipyridine is the least toxic substance and is twice as effective against E. coli as it is against B. subtilis. Evidence is presented to s

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21

DAY, T. A., and G. Z. CHEN. "The metalloprotease inhibitor 1,10-phenanthroline affects Schistosoma mansoni motor activity, egg laying and viability." Parasitology 116, no. 4 (1998): 319–25. http://dx.doi.org/10.1017/s0031182097002370.

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The Zn2+-chelating metalloprotease inhibitor 1,10-phenanthroline (phenanthroline, 5–150 μM) elicited dose-dependent contraction of the longitudinal and circular (transverse) musculature of adult male schistosomes. At the same concentrations, phenanthroline did not cause contraction of dispersed individual muscle fibres. The phenanthroline-induced contractions were reduced by the inclusion of 100 or 300 μM Zn2+ in the extracellular medium. Phenanthroline (0·5–150 μM) also inhibited the egg production of adult worm pairs in vitro, with a 98% reduction at 50 μM. When worm pairs were exposed to ph

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22

Ferguson, George, Christopher Glidewell та Emma S. Lavender. "Crystal engineering using bisphenols and trisphenols. Complexes with 1,10-phenanthroline: hydrogen-bonded chains in adducts with 4,4′-biphenol (1/1) and 4,4′-sulfonyldiphenol (2/3), π–π stacked chains in the (1/2) adduct with 4,4′-thiodiphenol, and pairwise-interwoven nets in 1,1,1-tris(4-hydroxyphenyl)ethane–1,10-phenanthroline–methanol (1/1/1)". Acta Crystallographica Section B Structural Science 55, № 4 (1999): 591–600. http://dx.doi.org/10.1107/s0108768199002657.

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In 4,4′-biphenol–1,10-phenanthroline (1/1) [systematic name: 4,4′-biphenyldiol–1,10-phenanthroline (1/1)] the diphenol molecules lie across centres of inversion and the phenanthroline molecules lie across twofold rotation axes; the phenanthroline molecules act as chain-building units and the molecular components are linked into steeply zigzag C(16) chains parallel to [101] by means of O—H...N hydrogen bonds. In the structure of 4,4′-thiodiphenol–1,10-phenanthroline (1/2) the phenanthroline molecules act as chain-terminating units; the supramolecular aggregation is finite, with the bisphenol li

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23

Bauer, Matthias, Maike Tünnermann, Pia Rehsies, and Ulrich Flörke. "A Straightforward Synthesis to Novel 1,10-Phenanthrolines with Fused Thiophene Structure." Synlett 29, no. 20 (2018): 2638–42. http://dx.doi.org/10.1055/s-0037-1611022.

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We report here a straightforward synthesis for a series of new structures with fused 1,10-phenanthroline-thiophene connection. They are synthesized with a modified Hinsberg thiophene procedure, followed by successive modification to yield several 5,7-disubstituted thieno[3,4-f][1,10]phenanthrolines, most notable thiophene-substituted compounds that could be potentially of use for organic electronics applications. For some selected examples, crystal structures were obtained, showing a nearly coplanar arrangement around the fused connection, also beneficial for an effective electron transfer i

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24

Pakulski, Paweł, Mirosław Arczyński, and Dawid Pinkowicz. "Bis(triphenylphosphine)iminium Salts of Dioxothiadiazole Radical Anions: Preparation, Crystal Structures, and Magnetic Properties." Crystals 9, no. 1 (2019): 30. http://dx.doi.org/10.3390/cryst9010030.

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Phenanthroline dioxothiadiazoles are redox active molecules that form stable radical anions suitable for the construction of supramolecular magnetic materials. Herein, the preparation, structures and magnetic properties of bis(triphenylphosphine)iminium (PPN) salts of [1,2,5]thiadiazole[3,4-f][1,10]phenanthroline 1,1-dioxide (L), [1,2,5]thiadiazole[3,4-f][4,7]phenanthroline 1,1-dioxide (4,7-L), 5-bromo-[1,2,5]thiadiazolo[3,4-f][1,10]phenanthroline 2,2-dioxide (BrL), and 5,10-dibromo-[1,2,5]thiadiazolo[3,4-f][1,10]phenanthroline 2,2-dioxide (diBrL) are reported. The preparation of new bromo der

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25

Coulibaly, Songuigama, D. Jean-Paul N'Guessan, and Mahama Ouattara. "A Brief Review of the Synthesis and Therapeutic Potential of 1,10-Phenanthroline Heterocycle." Pharmaceutical and Chemical Journal 8, no. 5 (2021): 72–84. https://doi.org/10.5281/zenodo.13963688.

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The 1,10-phenanthroline tricycle and its derivatives are of great interest in medicinal chemistry. Some years several research papers have been published on the 1,10-phenanthroline core alone or complexed with various metals. Researchers have explored new approaches to functionalize the 1,10-phenanthroline motif in order to obtain less toxic potential drug candidates without adding additional metals. This research has shown that the 1,10-phenanthroline tricycle and its derivatives possess important antimalarial, antimicrobial, antitubercular, antifungal, antiviral, anti-inflammatory, anticance

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26

Výprachtický, Drahomír, Dana Kaňková, Veronika Pokorná, Ivan Kmínek, Vagif Dzhabarov, and Věra Cimrová. "Novel and Simple Synthesis of Brominated 1,10-Phenanthrolines." Australian Journal of Chemistry 67, no. 6 (2014): 915. http://dx.doi.org/10.1071/ch13711.

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A novel, simple, and reasonably efficient synthesis of 3,8-dibromo-1,10-phenanthroline, 3,6-dibromo-1,10-phenanthroline, 3,5,8-tribromo-1,10-phenanthroline, and 3,5,6,8-tetrabromo-1,10-phenanthroline is presented herein. The crucial role of a new catalyst (sulfur dichloride – SCl2) for the bromination of 1,10-phenanthroline is reported. The bromination of 1,10-phenanthroline monohydrate in the presence of SCl2 and pyridine yielded the brominated compounds, previously only possible through the complicated multi-step and tedious Skraup synthesis method. The application of the bromination catalys

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27

Krause-Heuer, Anwen M., Peter Leverett, Albert Bolhuis, and Janice R. Aldrich-Wright. "Copper(II) and Palladium(II) Complexes with Cytotoxic and Antibacterial Activity." Australian Journal of Chemistry 65, no. 7 (2012): 860. http://dx.doi.org/10.1071/ch12058.

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The synthesis of eight square pyramidal copper complexes with general structure [Cu(IL)(AL)H2O]2+, where IL represents various methylated 1,10-phenanthrolines, and AL represents either 1S,2S- or 1R,2R-diaminocyclohexane, is reported, with the complexes synthesised as both the perchlorate and chloride salts. The crystal structures of [Cu(1,10-phenanthroline)(1S,2S-diaminocyclohexane](ClO4)2·H2O and [Cu(5,6-dimethyl-1,10-phenanthroline)(1S,2S-diaminocyclohexane](ClO4)2·1.5H2O are reported. Four square planar palladium complexes with general structure [Pd(IL)(AL)]Cl2 have also been synthesised. T

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28

Yang, Weixi, та Tamaki Nakano. "Synthesis of poly(1,10-phenanthroline-5,6-diyl)s having a π-stacked, helical conformation". Chemical Communications 51, № 97 (2015): 17269–72. http://dx.doi.org/10.1039/c5cc07005h.

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5,6-Dibromo-1,10-phenanthroline and 2,9-di-n-butyl-5,6-dibromo-1,10-phenanthroline were polymerized using a Ni catalyst to afford helical polymers in which the phenanthroline moieties are densely stacked on top of each other.

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29

James, Marisa, Madelyn R. Shevlin, Thomas B. Green, Megan M. Smart, Colin D. McMillen, and Jared A. Pienkos. "Crystal Structures of DNA Intercalating Agents Dipyrido[3,2-f:2′,3′-h]quinoxaline (dpq), (Benzo[i]dipyrido[3,2-a:2′,3′c]phenazine (dppn), and [Ir(ppy)2(dppn)][PF6] (Where Hppy = 2-Phenylpyridine)." Inorganics 11, no. 9 (2023): 353. http://dx.doi.org/10.3390/inorganics11090353.

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Pyrazino-phenanthroline ligands are commonly used with transition metals as DNA intercalation agents. Herein, we report the characterization of two commonly utilized pyrazino-phenanthroline ligands, dipyrido[3,2-f:2′,3′-h]quinoxaline (dpq) and (benzo[i]dipyrido[3,2-a:2′,3′c]phenazine (dppn), by single-crystal X-ray diffraction. Additionally, the characterization of [Ir(ppy)2(dppn)][PF6], where Hppy = 2-phenylpyridine, by single-crystal X-ray diffraction is described. Both the dpq and dppn ligands crystallize as chloroform solvates where the chloroform molecule occupies the equivalent binding p

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30

Bond, Andrew D., Ning Shan, and William Jones. "4,7-Phenanthroline." Acta Crystallographica Section E Structure Reports Online 57, no. 2 (2001): o145—o146. http://dx.doi.org/10.1107/s1600536801000812.

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31

Li, Feng, Han-Dong Yin, Jun Zhai та Da-Qi Wang. "1,10-Phenanthrolinium tetraiodo(1,10-phenanthroline-κ2 N,N′)bismuthate(III) 1,10-phenanthroline". Acta Crystallographica Section E Structure Reports Online 62, № 5 (2006): m1170—m1172. http://dx.doi.org/10.1107/s1600536806014991.

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The asymmetric unit of the title compound, (C12H9N2)[BiI4(C12H8N2)]·C12H8N2, comprises a 1,10-phenanthrolinium cation and a tetraiodo(1,10-phenanthroline)bismuthate(III) anion, together with a neutral 1,10-phenanthroline molecule. The BiIII ion adopts a distorted octahedral coordination geometry, binding to the two N atoms of a chelating 1,10-phenanthroline ligand and four iodide ions. N—H...N and C—H...I hydrogen bonding between the 1,10-phenanthroline molecule, the 1,10-phenanthrolinium cation and the BiIII complex cation stabilize the crystal structure.

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32

Schoffers, Elke, Son Duc Tran, and Kristen Mace. "Preparation of Chiral 5,6-trans-Disubstituted Phenanthrolines from Phenanthroline-5,6-epoxide." HETEROCYCLES 60, no. 4 (2003): 769. http://dx.doi.org/10.3987/com-02-9689.

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33

Krishna, Srivastava, Kumari Mala, Srivastava Alpna, Prasad Jagdish, and B. Pandeya K. "Cyclic voltammetric studies of some bis(phenanthrolines)copper(II) complexes." Journal of Indian Chemical Society Vol. 84, Jun 2007 (2007): 515–17. https://doi.org/10.5281/zenodo.5820334.

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Department of Chemistry, University of Allahabad, Allahabad-211 002, Uttar Pradesh, India <em>E-mail</em> : dr_krishna_s@yahoo.co.in <em>Manuscript received 13 November 2006, revised 20 March 2007, accepted 28 February 2007</em> The electrochemical properties of some bis(phenanthrolincs)copper(II) complexes, [Cu(NN)<sub>2</sub>](CIO<sub>4</sub>)<sub>2</sub> (NN denotes 1,10-phenanthroline (phen); 4, 7-diphenyl-1, 10-phenanthroline (hathophen); 2,9-dimethyl-1, 1 0- henanthroline (dmp) and 2,9-diphenyl-1,10-phenanthroline (dpp) have been studied by cyclic voltammetry at a platinum working electr

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34

Hensen, K., F. Gebhardt, and M. Bolte. "1,10-Phenanthrolin-1-ium Chloride Bis(1,10-phenanthroline) Solvate at 143K." Acta Crystallographica Section C Crystal Structure Communications 54, no. 3 (1998): 359–61. http://dx.doi.org/10.1107/s0108270197016363.

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35

Carver, J. A., G. S. Baldwin, D. B. Keech, R. Bais, and J. C. Wallace. "Inactivation of chicken liver pyruvate carboxylase by 1,10-phenanthroline." Biochemical Journal 252, no. 2 (1988): 501–7. http://dx.doi.org/10.1042/bj2520501.

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Inactivation of chicken liver pyruvate carboxylase by the chelating agent 1,10-phenanthroline follows pseudo-first-order kinetics. The hyperbolic dependence of the apparent first-order rate constant on 1,10-phenanthroline concentration is consistent with a two-step inactivation mechanism, in which 1,10-phenanthroline binds firstly to the enzyme, and secondly to the enzyme-bound Mn(II) ion. Binding of 1,10-phenanthroline to pyruvate carboxylase results in complete loss of ATP/Pi exchange activity, but only a 61% decrease in pyruvate/oxaloacetate exchange activity. The rate of inactivation is gr

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36

Nocton, Grégory, and Louis Ricard. "Reversible C–C coupling in phenanthroline complexes of divalent samarium and thulium." Chemical Communications 51, no. 17 (2015): 3578–81. http://dx.doi.org/10.1039/c5cc00289c.

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37

Mallphanov, Ilya L., Michail Y. Eroshik, Dmitry A. Safonov, and Anastasia I. Lavrova. "Co-Complexes-Based Self-Oscillating Gels Driven by the Belousov–Zhabotinsky Reaction." Gels 10, no. 9 (2024): 552. http://dx.doi.org/10.3390/gels10090552.

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We report the synthesis of novel cobalt complexes-based catalysts designed for the oscillatory Belousov–Zhabotinsky (BZ) reaction. For the first time, we introduce cobalt complex-based self-oscillating gels that demonstrate autonomous color oscillations within a BZ reagent solution, functioning without the need for any external stimuli. We created acrylamide-based self-oscillating gels containing immobilized tris(2,2′-bipyridine)cobalt(II) or tris(1,10-phenanthroline)cobalt(II) complexes and gels containing covalently bound (5-acrylamido-1,10-phenanthroline)bis(2,2′-bipyridine)cobalt(II), (5-a

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38

Hill, Walter E., Douglas J. Bucklin, James M. Bullard, et al. "Identification of ribosome–ligand interactions using cleavage reagents." Biochemistry and Cell Biology 73, no. 11-12 (1995): 1033–39. http://dx.doi.org/10.1139/o95-110.

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To characterize ribosome–ligand interactions, we have used a cleavage reagent, 1,10-orthopenanthroline–Cu(II), tethered to various ligands, to cleave nearby regions of rRNA. The phenanthroline is tethered to the ligand using either an internal 4-thiouridine or a terminal thiophosphate. When Cu2+ and a reducing agent, such as mercaptopropionic acid, are present, cleavage of nearby nucleic acids occurs. The cleavage sites can be identified using primer-extension analysis. We have identified rRNA cleavage sites resulting from transcribed tRNAPhe having randomly placed phenanthroline–Cu(II), tRNAP

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39

Guillon, Jean, Anita Cohen, Clotilde Boudot, et al. "Design, Synthesis, and Antiprotozoal Evaluation of New Promising 2,9-Bis[(substituted-aminomethyl)]-4,7-phenyl-1,10-phenanthroline Derivatives, a Potential Alternative Scaffold to Drug Efflux." Pathogens 11, no. 11 (2022): 1339. http://dx.doi.org/10.3390/pathogens11111339.

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A series of novel 2,9-bis[(substituted-aminomethyl)]-4,7-phenyl-1,10-phenanthroline derivatives was designed, synthesized, and evaluated in vitro against three protozoan parasites (Plasmodium falciparum, Leishmania donovani and Trypanosoma brucei brucei). Pharmacological results showed antiprotozoal activity with IC50 values in the sub and μM range. In addition, the in vitro cytotoxicity of these original molecules was assessed with human HepG2 cells. The substituted diphenylphenanthroline 1l was identified as the most potent antimalarial derivative with a ratio of cytotoxic to antiparasitic a

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40

Fernandes, José A., Olufunso Abosede та Simona Galli. "Powder X-ray diffraction structural characterization of the coordination complex cis-[Co(κ2N,N′-1,10-phenanthroline-5,6-dione)2Cl2]". Powder Diffraction 33, № 1 (2018): 55–61. http://dx.doi.org/10.1017/s0885715618000143.

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The reduction of cis-[CoIII(κ2N,N′-1,10-phenanthroline-5,6-dione)2Cl2]Cl into the neutral compound cis-[CoII(κ2N,N′-1,10-phenanthroline-5,6-dione)2Cl2] was observed during developmental studies of new antimalarial drugs. The crystal structure of cis-[CoII(κ2N,N′-1,10-phenanthroline-5,6-dione)2Cl2] was unveiled by powder X-ray diffraction studies (PXRD). PXRD details, unit cell parameters, and space group for cis-[CoII(κ2N,N′-1,10-phenanthroline-5,6-dione)2Cl2], C24H12Cl2CoN4O4, are reported [a = 41.4951 (13) Å, b = 8.2768 (2) Å, c = 12.4994 (3) Å, unit cell volume V = 4292.9 (2) Å3, Z = 8, and

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41

Liu, Hai-Xing, Gui-Ying Dong, Zhi-Hong Ma, and Guang-Hua Cui. "Diaquabis(1,10-phenanthroline)magnesium dichromate(VI) 1,10-phenanthroline disolvate." Acta Crystallographica Section E Structure Reports Online 65, no. 9 (2009): m1026. http://dx.doi.org/10.1107/s1600536809030128.

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42

Zhong, Kai-Long, and Chao Ni. "Bis(6-nitro-1,10-phenanthrolin-1-ium) 2,5-dicarboxyterephthalate." Acta Crystallographica Section E Structure Reports Online 70, no. 3 (2014): o256—o257. http://dx.doi.org/10.1107/s1600536814002414.

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In the structure of the title 2:1 proton-transfer compound, 2C12H8N3O2+·C10H4O82−, the 6-nitro-1,10-phenanthroline molecules act as proton sponges, accepting protons from pyromellitic acid. The –NO2group of one of the 6-nitro-1,10-phenanthrolin-1-ium cations is disordered and was refined with a site-occupancy ratio of 0.624 (15):0.376 (15). Two –COOH(–COO−) groups of the 2,5-dicarboxyterephthalate dianion are disordered and were refined with site-occupancy ratios of 0.769 (4):0.231 (4) and 0.766 (5):0.234 (5). The –NO2group of the second cation is also disordered about a pseudo-twofold rotatio

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43

Hadanu, Ruslin, Sabirin Mastjeh, Jumina Jumina, Mustofa Mustofa, Mahardika Agus Widjayanti, and Eti Nurwening Sholikhah. "SYNTHESIS AND ANTIPLASMODIAL ACTIVITY TESTING OF (1)-N-(4-METHOXYBENZYL)-1,10-PHENANTHROLINIUM BROMIDE." Indonesian Journal of Chemistry 7, no. 2 (2010): 197–201. http://dx.doi.org/10.22146/ijc.21698.

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Synthesis of (1)-N-(4-methoxybenzyl)-1,10-phenanthroline bromide from 1,10-phenanthroline monohydrate and 4-methoxybenzaldehyde as starting material and evaluation of its antiplasmodial activities have been carried out. The 4-methoxybenzyl alcohol was prepared from 4-methoxy-benzaldehyde using sodium borohydride (NaBH4) reagent and ethanol absolute solution. The mixture was refluxed for 3 h. To yield colorless dilution compound with 90.41 % in efficiency. Furthermore, bromination of 4-methoxybenzyl alcohol with phosphorus bromide (PBr3) was conducted by refluxing for 3 h. The product of this r

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44

Hadanu, Ruslin, Mustofa Mustofa, and Nazudin Nazudin. "Synthesis and Antimalarial Activity of 2-Phenyl-1,10-Phenanthroline Derivative Compounds." Jurnal Natur Indonesia 15, no. 1 (2014): 57. http://dx.doi.org/10.31258/jnat.15.1.57-62.

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To develop new potential antimalarial drugs of 2-phenyl-1,10-phenanthroline 5 derivatives from 8-aminoquinoline as startingmaterial were synthesized in good yields. The synthesis of 2-phenyl-1,10-phenanthroline 5 derivatives compoundswith 8-aminoquinoline 4 as starting material through three steps has been carried out. The first step of reactions is aldolcondensation of benzaldehyde 1 with acetaldehyde 2. The result of reactions is cinnamaldehyde 3 (92.14%) in the form ofyellow solid. The second step of reactions was synthesized of 2-phenyl-1,10-phenanthroline 5 (brown solid, 54.63%)through cy

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45

Nejatipour, Hajar, and Mehrdad Dadsetani. "First principles study of the structural, electronic and optical properties of crystalline o-phenanthroline." International Journal of Modern Physics B 30, no. 14 (2016): 1650077. http://dx.doi.org/10.1142/s0217979216500776.

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In a comprehensive study, structural properties, electronic structure and optical response of crystalline o-phenanthroline were investigated. Our results show that in generalized gradient approximation (GGA) approximation, o-phenanthroline is a direct bandgap semiconductor of 2.60 eV. In the framework of many-body approach, by solving the Bethe–Salpeter equation (BSE), dielectric properties of crystalline o-phenanthroline were studied and compared with phenanthrene. Highly anisotropic components of the imaginary part of the macroscopic dielectric function in o-phenanthroline show four main exc

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46

Shahroosvand, Hashem, Parisa Abbasi, Behrouz Notash, and Leyla Najafi. "Separation of Functionalized 5,6-Disubstituted-1,10-Phenanthroline for Dye-Sensitized Solar Cell Applications." Journal of Chemistry 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/475843.

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5,6-Epoxy-1,10-phenanthroline is used as a convenient starting material for 5-hydroxy-6-Aryl-1,10-phenanthroline ligands containing carboxylic and sulfonic groups useful for further anchoring of the sensitizer on TiO2for dye-sensitized solar cells (DSCs). Based on the crystal growth of the mixture of products, a convenient separation route for the extension of the p-system on 5,6-disubstituted-1,10-phenanthroline was used to develop a novel series of functionalized 1,10-phenanthroline ligands with electron-withdrawing end-capping group. Also, we report the epoxy opening of 5,6-epoxy-1,10-phena

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47

Wang, Z. X., H. B. Wu, X. C. Wang, H. M. Zhou, and C. L. Tsou. "Kinetics of the course of inactivation of aminoacylase by 1,10-phenanthroline." Biochemical Journal 281, no. 1 (1992): 285–90. http://dx.doi.org/10.1042/bj2810285.

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The kinetic theory of the substrate reaction during modification of enzyme activity previously described [Tsou (1988) Adv. Enzymol. Relat. Areas Mol. Biol. 61, 381-436] has been applied to a study on the kinetics of the course of inactivation of aminoacylase by 1,10-phenanthroline. Upon dilution of the enzyme that had been incubated with 1,10-phenanthroline into the reaction mixture, the activity of the inhibited enzyme gradually increased, indicating dissociation of a reversible enzyme–1,10-phenanthroline complex. The kinetics of the substrate reaction with different concentrations of the sub

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48

Feng, Liang Dong, Bo Qing Chen, Ying Ying Shi, et al. "Adsorption Characters of Mn²⁺ onto Palygorskites Modified by 1, 10-Phenanthroline and Triethylamine." Advanced Materials Research 178 (December 2010): 8–16. http://dx.doi.org/10.4028/www.scientific.net/amr.178.8.

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1, 10-phenanthroline and triethylamine modified palygorskites were prepared by microwave irradiation, and characterized with FT-IR technique. The effects of contact time, adsorbent dosage, and pH value of the initial solution on the adsorption characters of Mn2+ were investigated. The adsorption of Mn2+ from aqueous solutions using 1, 10-phenanthroline or triethylamine modified palygorskites were investigated. Experiment results indicated that 1,10-phenanthroline and triethylamine molecules have been successfully grafted to palygorskite. The adsorption was rapid during the ﬁrst 5 minuts and eq

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49

Gueneau, Basile, Nathalie Marlin, Alain Deronzier, and Dominique Lachenal. "Pulp delignification with oxygen and copper(II)-polyimine complexes." Holzforschung 68, no. 4 (2014): 377–84. http://dx.doi.org/10.1515/hf-2013-0134.

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Abstract Ten Cu(II)-polyimine complexes were tested as potential catalysts in oxygen delignification of softwood kraft pulps. The ligands were chosen from the terpyridine and the phenanthroline families, including several neocuproines. One diamine-phenanthrene (daphen) was also investigated. The main purpose was to examine whether the presence of methyl or phenyl substituents would direct the oxidation toward lignin. As a catalyst for comparison, unsubstituted 1,10-phenanthroline was selected, which is known to activate both delignification and carbohydrate degradation during oxygen bleaching

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Cusumano, Matteo, Maria Letizia Di Pietro, and Antonino Giannetto. "DNA Interaction of Platinum(II) Complexes with 1,10-Phenanthroline and Extended Phenanthrolines." Inorganic Chemistry 45, no. 1 (2006): 230–35. http://dx.doi.org/10.1021/ic050880o.

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