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Synthesis, Complex Formation and Spectral Investigation of New Tritopic Bis(Crown Ether) Compounds Containing Recognition Sites for Sodium and Nickel Guest Cations*
-
Zeliha Hayvali
und
Edwin Weber
Veröffentlicht/Copyright:
2. Juni 2014
Abstract
New bis(crown ether) ligands (1 - 3) of Schiff base type containing recognition sites for sodium and nickel guest cations have been synthesized by the condensation of two equivalents of 4′-formyl-5′-hydroxy(benzo-15-crown-5)with 1,5-diamino-3-azapentane, 1,8-diamino-3,6- diazaoctane or 1,8-diamino-3,6-dioxaoctane. Homonuclear ditopic crystalline 2:1 (Na+:ligand) complexes (1a - 3a) of the ligands with NaClO4 have been prepared. Heteronuclear tritopic crystalline 2:1:1 (Na⊕ : Ni2⊕ : ligand) complexes (2b and 3b) have also been synthesized from the reactions of the ditopic complexes (2a and 3a) with Ni(CH3COO)2 · 6H2O. The UV-VIS spectra of 1 - 3, their sodium complexes 1a - 3a and sodium-nickel complexes 2b and 3b have been recorded in polar and non-polar solvents as well as in acidic and basic media. In polar solvents and basic solutions, tautomeric equilibria (phenol-imine and keto-amine forms, O-H···N⇌O···H-N ) are present, depending on the hydrogen bonding. The results indicate that the concentrations of the keto forms of the compounds generally increase as the polarity of the solvent increases
Received: 2000-4-17
Published Online: 2014-6-2
Published in Print: 2000-10-1
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- Synthese und Komplexierung Phosphorylierter spacer-modifizierter Glucosederivate/ Synthesis and Complexation of Spacer Modified Phosphorylated Glucose Derivatives
- Synthesis and Structure of a Tetranuclear Nickel Complex of a 40-Membered Macrocyclic Octaamine-Tetrathiophenolate Ligand
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- Synthesis, Complex Formation and Spectral Investigation of New Tritopic Bis(Crown Ether) Compounds Containing Recognition Sites for Sodium and Nickel Guest Cations*
- Long Chain Cinnamoic Acid Esters from Daphne Oleoides
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Artikel in diesem Heft
- Gold Clustering at Dimethylsulfoximine Me2S(O)NH
- Polylithiation of Small Molecules. Synthesis and Structure of the Functional Lithium Phosphide [Li(TMEDA)]2[PhPCMe2 C5H4]
- Synthese und Kristallstrukturbestimmung von Silicium-Komplexen der Koordinationszahl sechs mit Dimethylpyridinen/ Syntheses and Crystal Structure Determination of Hexacoordinated Silicon-Complexes with Dimethylpyridines
- Synthese und Kristallstruktur von (Ph3PAu)4[AuMn(CO)5]2 und (Ph3PAu)3Re(CO)4/ Synthesis and Crystal Structure of (Ph3PAu)4 [AuMn(CO)5]2 and (Ph3PAu)3Re(CO)4
- Silylfurane und Bis(silyl)butadiine -Synthese, Lithiumderivate, Kristallstrukturen/ Silylfurans and Bis(silyl)butadiynes - Synthesis, Lithium Derivatives, Crystal Structures
- Reaktionen der Lithiumhydridosilylamide Me2(H)Si-N(Li)R (R = CMe3, SiMe3) mit Chlortrimethylstannan und Chlormethylsilanen Me4–nSiCln (n = 1-3)/ Reactions of Lithium Hydridosilylamides Me2(H)Si-N(Li)R (R = CMe3, SiMe3) with Chlorotrimethylstannane and Chloromethylsilanes Me4-nSiCln (n = 1 - 3)
- The Madelung Function of Elpasolites
- Tri(Terf-Butyl)plumbyl-phosphanes, Synthesis and Multinuclear Magnetic Resonance
- Metallkomplexe von biologisch wichtigen Liganden, CXXIX [1]. Palladium(II)-und Platin(II)-Komplexe von 4,4-disubstituierten Oxazolonen und C2-symmetrischen Bis(oxazolonen) Metal Complexes of Biologically Important Ligands, CXXIX [1]. Palladium(II) and Platinum(II) Complexes of 4,4-Disubstituted Oxazolones and of C2-Symmetric Bis(oxazolones)
- Diorgano(trichlorsiIyl)phosphane/ Diorgano(trichlorosilyl)phosphines
- Synthese und Komplexierung Phosphorylierter spacer-modifizierter Glucosederivate/ Synthesis and Complexation of Spacer Modified Phosphorylated Glucose Derivatives
- Synthesis and Structure of a Tetranuclear Nickel Complex of a 40-Membered Macrocyclic Octaamine-Tetrathiophenolate Ligand
- Preparation and Crystal Structure of a Mixed Metal Assembly [Ni(phen)3][Cu(H-1pap)]2(NO3) · 8 H2O Featuring Octahedral Cationic and Square-planar Anionic Modules
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- Synthesis, Complex Formation and Spectral Investigation of New Tritopic Bis(Crown Ether) Compounds Containing Recognition Sites for Sodium and Nickel Guest Cations*
- Long Chain Cinnamoic Acid Esters from Daphne Oleoides
- One-Pot Preparation of O-Xylylene Diamine and its Related Amines
- Notizen: Ca{Li2[Mn'N]2}: Kristallchemischer Brückenschlag Zwischen Lithium-Nitrido-Verbindungen und Borid-Carbiden des Typs M [B2C2]/ Ca{Li2[M nIN]2}: Link between Crystal Chemistry of Lithium Nitrido Compounds and Boride Carbides of the Type M [B2C2]
- N -Methoxyalkyl-Funktionalisierte α-Diketodiimide/ N -Methoxyalkyl Functionalized α-Diketodiimides
