Results 121 to 130 of about 716 (160)

30-Membered decanuclear manganese metallacrown

Solid State Sciences, 2011
Abstract A new macrocyclic decanuclear manganese(III) 30-metallacrowns-10, [Mn10(ipbmshz)8(dmpmshz)2(DMF)10]. 4DMF (1) has been prepared by supramolecular self-assembly and characterized by X-ray crystal diffraction, where ipbmshz3− is N-(4-isopropylbenzoyl)-3-methylsalicylhydrazide, dmpmshz3− is N-(2,2-dimethylpropanoyl)-3-methylsalicylhydrazide ...
Kewei Lei, Tianpin Shu, Hongze Liang
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Self-Assembled Organometallic [12]Metallacrown-3 Complexes

Chemistry - A European Journal, 2001
The reaction of [(arene)RuCl2]2 (arene = C6H6, cymene, C6H3Et3, or C6Me6) or [Cp*RhCl2]2 with 3-hydroxy-2-pyridone in the presence of Cs2CO3 gives trinuclear metallamacrocyclic complexes. The self-assembly process was shown to be completely diastereoselective, and a racemic mixture of complexes with M(R)M(R)M(R) or MsMsMs (M=Ru, Rh) configuration was ...
Piotrowski, H, Hilt, G, Schulz, A, Mayer, P, Polborn, K, Severin, K   +5 more
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Generalizing the metallacrown analogy: ligand variation and solution stability of the VVO 9-metallacrown-3 structure type

Inorganic Chemistry, 1993
In previous reports, salicylhydroxamic acid (H 3 shi) was used as a stabilizing ligand for metallacrowns, metal complexe with a structural analogy to crown ethers. An important goal for generalizing the metallacrown analogy was to prepare organic ligands with a wide variety of functional groups that retain a high-yield synthesis for a predicted ...
Brian R. Gibney, Ann J. Stemmler, Steffen Pilotek, Jeff W. Kampf, Vincent L. Pecoraro   +4 more
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The mass spectrometric study on aminohydroxamic acids‐based metallacrowns

Journal of Mass Spectrometry, 2014
Electrospray ionization mass spectrometry (MS) has been widely used to detect noncovalent interactions in supramolecular compounds, especially in biological systems. In our work, we present the application of the electrospray ionization MS technique to characterize the metallamacrocycles, known as metallacrowns.
Marta, Cal, Wanda, Żabska, Piotr, Stefanowicz   +2 more
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Lithium Isotope Separation by 12‐Metallacrown‐3 Complexes

Zeitschrift für anorganische und allgemeine Chemie, 2007
AbstractThe 12‐metallacrown‐3 complexes [(C6H5Me)Ru(C5H3NO2)]3 (3), [(C6H3iPr3)Ru(C5H3NO2)]3 (4) and [(C6Me6)Ru(C5H3NO2)]3 (5) were synthesizes by reaction of the corresponding [(arene)RuCl2]2 complex with 2,3‐dihydroxypyridine in the presence of base. Addition of LiCl in methanol gave the adducts 3×LiCl, 4×LiCl and 5×LiCl.
Grote, Zacharias, Wizemann, Hans-Dieter, Scopelliti, Rosario, Severin, Kay   +3 more
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Selective Recognition of Fluoride Anion Using a Li+–Metallacrown Complex

Angewandte Chemie, 2002
Reference LCS-ARTICLE-2002-004View record in Web of Science Record created on 2006-02-09, modified on 2017-05 ...
Lehaire, ML, Scopelliti, R, Piotrowski, H, Severin, K   +3 more
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ChemInform Abstract: Structural and Functional Evolution of Metallacrowns

ChemInform, 2008
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
Gellert Mezei, Curtis M. Zaleski, Vincent L. Pecoraro   +2 more
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Synthesis and Crystal Structure of an Adjoined Metallacrown: An Archetypal 12-Metallacrown-4 Connected to a Collapsed 11-Metallacrown-4

Journal of Chemical Crystallography, 2022
Jordan C. Scalia, Matthias Zeller, Curtis M. Zaleski   +2 more
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A functional analogy between crown ethers and metallacrowns

Inorganic Chemistry, 1991
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Lah, Myoung Soo, PECORARO, VL
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Metallacrown Ethers: Unique Organometallic Ligands

Comments on Inorganic Chemistry, 1995
Abstract Metallacrown ethers are a unique class of complexes that form when R2PX-(CH2CH2O)nCH2CH2XPR2 (X = –, O; R = Ph, alkoxy; n = 3–5) ligands chelate to transition metals. Metallacrown ethers with cis-coordinated phosphines (cis-metallacrown ethers) contain a crown ether-like pocket and exhibit size-selective binding of alkali metal cations similar
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