Results 91 to 100 of about 309 (131)
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Synthesis, Characterization, and Crystal Structure of a Metallamacrocycle
Zeitschrift für anorganische und allgemeine Chemie, 2011AbstractThe novel macrocyclic decanuclear manganese(III) 30‐metallacrown‐10 compound [Mn10(RS‐3‐chmshz)10(DMF)10]·9DMF (1) was synthesized by self‐assembly and characterized (H3RS‐3‐chmshz = N‐((R,S)‐3‐cyclohexenoyl)‐5‐methylsalicylhydrazide). Compound 1 is a 30‐membered decanuclear metallamacrocycle and crystallizes in triclinic space group P21/c, in ...
Dingjun Zhang +3 more
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Stabilization of Molecular LiF and LiFHF inside Metallamacrocyclic Hosts
Inorganic Chemistry, 2002Complexes of molecular LiF and LiFHF were synthesized using the metallamacrocyclic receptors [(cymene)Ru(C(5)H(3)NO(2))](3) (1), [CpRh(C(5)H(3)NO(2))](3) (2), and [CpIr(C(5)H(3)NO(2))](3) (3). LiBF(4) complexes of 1-3 were prepared and subsequently treated with F(-) or FHF(-) to give the desired products in an anion-exchange reaction.
Lehaire, ML, Scopelliti, R, Severin, K
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Two octanuclear gallium metallamacrocycles of topologically different connectivities
Dalton Transactions, 2007Two topologically different metallamacrocycles--S8 symmetric octanuclear gallium(III) metalladiazamacrocycle and pseudo-D4 symmetric octanuclear gallium(III) metalladiazamacrocycle--could be prepared using two similar heteroditopic bridging ligands having asymmetrical tridentate-bidentate binding residues.
Park, Mira +5 more
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Copper(II)-Assisted Ligand Fragmentation Leading to Three Families of Metallamacrocycle
Inorganic Chemistry, 2020We present an unprecedented copper(II)-assisted organic ligand fragmentation process under basic conditions leading to several ligands within three families of metallamacrocycle, Cu6, Cu8, and Cu16. The sequential multistep reaction include (i) the deprotonation of the starting alcohol, 1,2-bis(3,5-dimethyl-pyrazol-1-yl)ethane-1,2-diol (H2bdped) to its
Fei Yu +8 more
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A Nickel(II) Metallamacrocycle Complex with Antiferromagnetic Properties
Zeitschrift für anorganische und allgemeine Chemie, 2012AbstractA hexanuclear metallamacrocycle complex [Ni(iPr3tacn)(dca)(PF6)]6 (1) was obtained by using the tridentate ligand 1, 4, 7‐triisopropyl‐1, 4, 7‐triazacyclononane (iPr3tacn) and the flexible ligand dicyanamide (dca). The complex was characterized by X‐ray crystallography and magnetic measurements.
Gong‐Jun Chen +4 more
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Dalton Transactions, 2013
Pyridyloxy cyclophosphazenes, spiro-N3P3(O2C12H8)(O-C5H4N-3)4 (L1), dispiro-N3P3(O2C12H8)2(O-C5H4N-3)2 (L2) and dispiro-N3P3(O2C12H8)2(O-C5H4N-4)2 (L3) were prepared and characterized. The crystal structure of L1 was determined which showed that the cyclophosphazene ring is planar. The reaction of L1 with anhydrous copper(II) chloride or silver nitrate
Vadapalli, Chandrasekhar +1 more
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Pyridyloxy cyclophosphazenes, spiro-N3P3(O2C12H8)(O-C5H4N-3)4 (L1), dispiro-N3P3(O2C12H8)2(O-C5H4N-3)2 (L2) and dispiro-N3P3(O2C12H8)2(O-C5H4N-4)2 (L3) were prepared and characterized. The crystal structure of L1 was determined which showed that the cyclophosphazene ring is planar. The reaction of L1 with anhydrous copper(II) chloride or silver nitrate
Vadapalli, Chandrasekhar +1 more
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Redox‐Active 17‐ and 19‐Membered Metallamacrocycles Incorporating Tetrathiafulvalene
European Journal of Inorganic Chemistry, 2006AbstractRedox‐active 17‐ and 19‐membered metallamacrocycles were prepared thanks to the chelating ability of bis[(diphenylphosphane)alkylthio]TTF towards the M(CO)4 fragment(M = Mo, W). The TTF unit can adopt either a cis or a trans configuration as can the phosphorus atoms coordinated to the metal center.
Gachot, G. +3 more
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Metallamacrocycle-modified gold nanoparticles: a new pathway for surface functionalization
Chem. Commun., 2014We report herein the designed synthesis of four silver(I)- or gold(I)-bridged flexible metalla-macrocycles (MMCs) and their distinct performance in the surface modification of gold nanoparticles (AuNPs). The resulting gold(I)-MMCs-modified AuNPs were found to be resistant to pH variation and capable of binding with metal ions.
Hai-Xia, Liu, Xin, He, Liang, Zhao
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Metallacrown ethers: synthesis and structural investigation of silver metallamacrocycles
Tetrahedron Letters, 2003The bis-monodentate ligands 1 and 2 based on the interconnection of two pyrazolyl units by CH 2 (CH 2 OCH 2 ) n CH 2 ( n =3 or 4) spacers, respectively, lead to the formation of either mono nuclear silver metallamacrocycle 10 in the case of 1 or binuclear silver metallamacrocycle 11 in the case of 2 .
Philippe Grosshans +4 more
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Semi-Rigid Bis-Phosphane Ligands for Metallamacrocycle Formation
European Journal of Inorganic Chemistry, 2002Efficient syntheses are described for the new bridging bis-phosphanes DPPN (4) and DPEN (5) built around the restricted rigidity of a 2,7-dialkoxynaphthalene backbone. These show marked preference for bridging pairs of metal atoms (PtII, Mo0) to form metallamacrocycles or oligomers.
Susan K. Armstrong +4 more
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