Results 1 to 10 of about 120 (103)

Crystal structure of a TbIII–CuII glycinehydroxamate 15-metallacrown-5 sulfate complex [PDF]

Acta Crystallographica Section E: Crystallographic Communications, 2021
The core of the title complex, bis[hexaaquahemiaquapentakis(μ3-glycinehydroxamato)sulfatopentacopper(II)terbium(III)] sulfate hexahydrate, [TbCu5(SO4)(GlyHA)5(H2O)6.5]2(SO4)·6H2O (1), which belongs to the 15-metallacrown-5 family, consists of five ...
Anna V. Pavlishchuk, Inna V. Vasylenko, Matthias Zeller, Anthony W. Addison   +3 more
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A “Pretender” Croconate-Bridged Macrocyclic Tetraruthenium Complex: Sizable Redox Potential Splittings despite Electronically Insulated Divinylphenylene Diruthenium Entities [PDF]

Molecules, 2021
Careful optimization of the reaction conditions provided access to the particularly small tetraruthenium macrocycle 2Ru2Ph-Croc, which is composed out of two redox-active divinylphenylene-bridged diruthenium entities {Ru}-1,4-CH=CH-C6H4-CH=CH-{Ru} (Ru2Ph;
Nils Rotthowe, Michael Linseis, Lars Vogelsang, Nicole Orth, Ivana Ivanović-Burmazović, Rainer F. Winter   +5 more
doaj   +2 more sources

Self-Assembly of a [1 + 1] Ionic Hexagonal Macrocycle and Its Antiproliferative Activity [PDF]

Frontiers in Chemistry, 2018
A unique irregular hexagon was self-assembled using an organic donor clip (bearing terminal pyridyl units) and a complementary organometallic acceptor clip.
Khushwant Singh, Ankit Gangrade, Sourav Bhowmick, Achintya Jana, Biman B. Mandal, Neeladri Das   +5 more
doaj   +2 more sources

Water-Soluble Bismuth(III) Polynuclear Tyrosinehydroximate Metallamacrocyclic Complex: Structural Parallels to Lanthanide Metallacrowns [PDF]

Molecules, 2020
Recently there has been a great deal of interest and associated research into aspects of the coordination chemistry of lanthanides and bismuth—elements that show intriguing common features.
Marina A. Katkova, Grigory Y. Zhigulin, Roman V. Rumyantcev, Galina S. Zabrodina, Vladimir R. Shayapov, Maxim N. Sokolov, Sergey Y. Ketkov   +6 more
doaj   +2 more sources

Tetraruthenium Metallamacrocycles with Potentially Coordinating Appended Functionalities [PDF]

Inorganics, 2018
We present four new tetraruthenium macrocycles built from two 1,4-divinylphenylene diruthenium and two isophthalic acid building blocks with peripheral, potentially mono- or tridentate donor functions attached to the isophthalic linkers.
Patrick Anders, Mario Robin Rapp, Michael Linseis, Rainer F. Winter   +3 more
doaj   +3 more sources

Bis[μ-2,3-bis(imidazol-1-ylmethyl)quinoxaline]disilver(I) bis(tetrafluoridoborate) [PDF]

Acta Crystallographica Section E, 2008
The title compound, [Ag2(C16H14N6)2](BF4)2, forms a centrosymmetric 22-membered metallamacrocycle via two AgI ions bridging two 2,3-bis(imidazol-1-ylmethyl)quinoxaline ligands. The AgI ions are coordinated by two N donors of the imidazole groups, forming
Jian-Long Du, Shu-Ming Zhang
doaj   +2 more sources

The crystal structures of {LnCu5}3+ (Ln = Gd, Dy and Ho) 15-metallacrown-5 complexes and a reevaluation of the isotypic EuIII analogue [PDF]

Acta Crystallographica Section E: Crystallographic Communications, 2019
Three new isotypic heteropolynuclear complexes, namely pentaaquacarbonatopentakis(glycinehydroxamato)nitratopentacopper(II)lanthanide(III) x-hydrate, [LnCu5(GlyHA)5(CO3)(NO3)(H2O)5]·xH2O (GlyHA2− is glycinehydroxamate, N-hydroxyglycinamidate or ...
Anna Pavlishchuk, Dina Naumova, Matthias Zeller, Sebastian Calderon Cazorla, Anthony W. Addison   +4 more
doaj   +2 more sources

Bis[μ-1,2-bis(1H-imidazol-1-ylmethyl)benzene-κ2N3:N3′]disilver(I) bis(4-carboxynaphthalene-1-carboxylate) tetrahydrate [PDF]

Acta Crystallographica Section E, 2011
In the title compound, [Ag2(C14H14N4)2](C12H7O4)2·4H2O, the dinuclear dication has crystallographically imposed inversion symmetry. Each AgI ion is bicoordinated in a slightly distorted linear coordination geometry by the N atoms of two ligands,
Yan Yang, Guohui Yuan
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Bis[μ-1,4-bis(4,5-dihydro-1H-imidazol-2-yl)benzene-κ2N3:N3′]silver(I) dinitrate dihydrate [PDF]

Acta Crystallographica Section E, 2008
The reaction of 1,4-bis(4,5-dihydro-1H-imidazol-2-yl)benzene (bib) with silver(I) nitrate in a 1:1 molar ratio generates the metallacyclic title complex, [Ag2(C12H14N4)2](NO3)2·2H2O, in which the bib ligand displays a cis configuration.
Yu-Qiang Ding, Zhi-Qiang Liu, Bin Shen, Chun-Xia Ren, Hua Sun   +4 more
doaj   +2 more sources

Symmetry Breaking in Chiral Gold Nanoclusters by Ansa‐Metallamacrocycles Strain

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Chiral nanomaterials have recently stimulated significant interest in both fundamental research and practical applications (e.g., nanoprobes for biomolecular recognition). However, achieving chiral nanoclusters is still a major challenge.
Zhiwen Li, Jingjing Zhang, Zhaoxian Qin, Huan Li, Zhaohui Tong, José A. Gascón, Gao Li   +6 more
doaj   +2 more sources