Results 1 to 10 of about 60,342 (271)

New Tools in Heavy Metal Detection: Synthesis, Spectroscopic, and Quantum Chemical Characterization of Selected Water-Soluble Styryl Derivatives of Quinoline and 1,10-Phenanthroline [PDF]

Molecules
A series of water-soluble molecules based on 8-isopropyl-2-methyl-5-nitroquinoline and 1,10-phenanthroline core were designed by introducing a π-conjugated bridge, vinyl unit –CH=CH–. We present the selective conversion of methyl groups located on the C2
Jacek E. Nycz, Jolanta Kolińska, Nataliya Karaush-Karmazin, Tieqiao Chen, Maria Książek, Joachim Kusz   +5 more
doaj   +2 more sources

First Example of Fluorinated Phenanthroline Diamides: Synthesis, Structural Study, and Complexation with Lanthanoids

Molecules, 2022
An efficient approach to the synthesis of diamides of 4,7-difluoro-1,10-phenanthroline-2,9-dicarboxylic acid was elaborated. Direct nucleophilic substitution with 4,7-dichloro-1,10-phenanthroline precursors opened access to difluoro derivatives in high ...
Nane A. Avagyan, Pavel S. Lemport, Konstantin A. Lysenko, Alexey O. Gudovannyy, Vitaly A. Roznyatovsky, Valentine S. Petrov, Mikhail F. Vokuev, Yuri A. Ustynyuk, Valentine G. Nenajdenko   +8 more
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First Trifluoromethylated Phenanthrolinediamides: Synthesis, Structure, Stereodynamics and Complexation with Ln(III)

Molecules, 2022
The first examples of 1,10-phenanthroline-2,9-diamides bearing CF3-groups on the side amide substituents were synthesized. Due to stereoisomerism and amide rotation, such complexes have complicated behavior in solutions. Using advanced NMR techniques and
Yuri A. Ustynyuk, Pavel S. Lemport, Vitaly A. Roznyatovsky, Konstantin A. Lyssenko, Alexey O. Gudovannyy, Petr I. Matveev, Ennie K. Khult, Mariia V. Evsiunina, Vladimir G. Petrov, Igor P. Gloriozov, Anton S. Pozdeev, Valentine S. Petrov, Nane A. Avagyan, Alexander S. Aldoshin, Stepan N. Kalmykov, Valentine G. Nenajdenko   +15 more
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Development of Copper Complexes with Diimines and Dipicolinate as Anticancer Cytotoxic Agents

Pharmaceutics, 2023
Coordination complexes may act as anticancer agents. Among others, the formation of the complex may facilitate the ligand uptake by the cell. Searching for new copper compounds with cytotoxic activity, the complex Cu-dipicolinate was studied as a neutral
Natalia Alvarez, Analu Rocha, Victoria Collazo, Javier Ellena, Antonio J. Costa-Filho, Alzir A. Batista, Gianella Facchin   +6 more
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Diaquabis(1,10-phenanthroline)magnesium dichromate(VI) 1,10-phenanthroline disolvate [PDF]

Acta Crystallographica Section E Structure Reports Online, 2009
In the title compound, [Mg(C(12)H(8)N(2))(2)(H(2)O)(2)][Cr(2)O(7)]·2C(12)H(8)N(2), the cation and anion are situated on a twofold rotation axis. The Mg(II) ion is coordinated by four N atoms from two 1,10-phenanthroline ligands and two O atoms from coordinated water mol-ecules in a distorted octa-hedral geometry.
Hai-Xing Liu, Gui-Ying Dong, Zhi-Hong Ma, Guang-Hua Cui   +3 more
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Chirality as a Feature of the Crystal Structure of Lanthanide Ion Complexes—Some Simple Examples

Crystals, 2023
Single-crystal X-ray structure determinations are reported for four lanthanide complexes, [Dy(bipy)2Cl2(OH2)2]Cl.H2O (bipy = 2,2′-bipyridine), 1; [La2(phen)2(O2CCH3)4(NO3)2] (phen = 1,10-phenanthroline), 2; [Lu(terpy)(O2CCH3)3].NaNO3 (terpy = 2,2′;6′,2 ...
Lioubov I. Semenova, Irene Ling, Alexandre N. Sobolev   +2 more
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Phenanthroline‐Catalyzed Stereoretentive Glycosylations [PDF]

Angewandte Chemie International Edition, 2019
AbstractCarbohydrates are essential moieties of many bioactive molecules in nature. However, efforts to elucidate their modes of action are often impeded by limitations in synthetic access to well‐defined oligosaccharides. Most of the current methods rely on the design of specialized coupling partners to control selectivity during the formation of ...
Fei Yu, Jiayi Li, Paul M. DeMent, Yi‐Jung Tu, H. Bernhard Schlegel, Hien M. Nguyen   +5 more
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2,9-Dichloro-1,10-phenanthroline [PDF]

Acta Crystallographica Section E Structure Reports Online, 2009
The title mol-ecule, C(12)H(6)Cl(2)N(2), is almost planar (the r.m.s. deviation of C atoms is 0.04 Å). The C-N and C-C distances indicate delocalization of the π-electrons in the aromatic fused ring system.
Said Nadeem, Muhammad Raza Shah, Seik Weng Ng   +2 more
openaire   +3 more sources

Synthesis, Structure, and Catalytic Activity of A New Mn(II) Complex with 1,4-Phenylenediacetic Acid and 1,10-Phenanthroline

Bulletin of Chemical Reaction Engineering & Catalysis, 2018
A new Mn(II) complex material has been synthesized by one-pot reaction of Mn(CH3COO)2·4H2O, 1,4-phenylenediacetic (H2L), 1,10-phenanthroline (phen), and NaOH in water/ethanol (v:v = 1:1) solution.
Li Hua Wang, Peng Fei Li
doaj   +1 more source

Copper-Catalyzed Arylation of 1\u3cem\u3eH\u3c/em\u3e-Perfluoroalkanes [PDF]

, 2011
A general method has been developed for arylation of readily available 1H-perfluoroalkanes. The method employs aryl iodide and 1H-perfluoroalkane reagents, DMPU solvent, TMP2Zn base, and a copper chloride/phenanthroline catalyst.
Daugulis, Olafs, Lindeman, Sergey V., Popov, Ilya   +2 more
core   +2 more sources