Transition metal and lanthanide cluster complexes constructed with thiacalix[n]arene and its derivatives

Kajiwara, Takashi; Iki, Nobuhiko; Yamashita, Masahiro

doi:10.1016/j.ccr.2007.01.001

Cited by 187 publications

(101 citation statements)

References 45 publications

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“…(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009) [4]arene derivative, deep-cavity p-phenylthiacalix [4]arene (H 4 PTC4A), remains unexplored since its first synthesis by Lhoták et al about six years ago. [11] Scheme 1.…”

Section: Introductionmentioning

confidence: 99%

“…In these complexes, not only the phenolic oxygen atoms but also the bridging sulfur atoms bond the metals, and the featuring M x cores (x = 1-4) are either bonded to the lower rim of the calixarene or sandwiched between two calixarenes. [4] However, in spite of the increasing amount of studies on H 4 TC4A, the solid-state supramolecular chemistry of another thiacalix-characterized by TG analyses, FTIR spectroscopy, and singlecrystal X-ray diffraction analyses. Compounds 1 and 2 feature two-dimensional layered networks, while compounds 3 and 4 are assembled by some tetranuclear units.…”

Section: Introductionmentioning

confidence: 99%

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Self‐Assembly from Two‐Dimensional Layered Networks to Tetranuclear Structures: Syntheses, Structures, and Properties of Four Copper–Thiacalix[4]arene Compounds

Liao

Wang

et al. 2009

Eur J Inorg Chem

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Two new copper–thiacalix[4]arene compounds, [CuI2Cl2(H4TC4A)](CH3OH) (1) and [CuI2Cl2(H4PTC4A)](CH3OH)(CHCl3)0.5 (2) (where H4TC4A = p‐tert‐butylthiacalix[4]arene and H4PTC4A = p‐phenylthiacalix[4]arene), were synthesized by the solvothermal method in the mixed CH3OH/CHCl3 (1:1) solvent and reassembled in air at room temperature to two other structures, [CuII4Cl3(HCO2)(TC4A)(CH3OH)2(H2O)](CHCl3)(CH3OH)2.7 (3) and [CuII4Cl4(PTC4A)(CH3OH)4] (4), respectively. All these four compounds were characterized by TG analyses, FTIR spectroscopy, and single‐crystal X‐ray diffraction analyses. Compounds 1 and 2 feature two‐dimensional layered networks, while compounds 3 and 4 are assembled by some tetranuclear units. The luminescence of compounds 1 and 2 in the solid state and magnetic properties of compound 3 were studied.(© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Self‐Assembly from Two‐Dimensional Layered Networks to Tetranuclear Structures: Syntheses, Structures, and Properties of Four Copper–Thiacalix[4]arene Compounds

Liao

Wang

et al. 2009

Eur J Inorg Chem

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“…Considerable attention has been recently focused on TC[n]As because there are many features that are not presented in chemistry of C[n]As [4] of which bridging sulfide moieties, which may be capable of extensive metal coordination. The complexation ability of the thiacalix [4] arene(TC [4]A) towards neutral molecules or metal ions has also been investigated [5], [6], [7], [8] . However, to our best knowledge, there are few reports on molecular extraction system including organic and inorganic compounds by modified TC [6]A and TC [6] A itself [9], [10], [11] .…”

Section: C[n]mentioning

confidence: 99%

Selective Extraction Ability of Thiacalix[6]arene Derivatives from Rare Metal Mixed Solution

Itoh

Yamada

et al. 2010

Int.J.Soc.Mater.Eng.Resour.

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In this study, a synthesis and extraction capability of two new thiacalix [6]arene (TC[6]A) derivatives modified at the lower or upper rims, which are TC[6]A-CH 2 CONEt 2 (1) and TC[6]A-CH 2 SCOCH 3 (2), respectively, will be discussed. The metal extraction properties of 1, 2, and TC[6]A (3), from automotive catalyst residue solution containing platinum-group metal cations (PGM solution) have been investigated. Compound 3 shows highest extraction capability for Zr cation which is ca. 87% (in pH 4.0 PGM solution). On the other hand, 1 shows the highest extraction capability for Zr cation which is ca. 63% (in pH 3.0 of PGM solution), 2 shows the highest extractability for Pd cation which is ca. 86% (in pH 1.5 of PGM solution) and second highest one for Zr cation which is ca. 57% (in pH 4.0 of PGM solution) respectively.

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“…[24][25][26] The chemistry of thiacalixarene is interesting because it can bind metal ions by sulfur bridges, which is not possible with normal calixarenes. 24,26 Since two thiacalixarene molecules are bridged upon binding to metal ions, [27][28][29] we hypothesized that AgNPs coated with thiacalixarene could be bridged by metal complexation, and lead to the colorimetric sensing of metal ions. Instead, we unexpectedly found that CAS-coated AgNPs (denoted as CAS-AgNPs from now on) showed multi-coloration from yellow to green, grey, orange, and purple depending upon the type of metal element present.…”

Section: Introductionmentioning

confidence: 99%

Multi-coloration of Calixarene-coated Silver Nanoparticles for the Visual Discrimination of Metal Elements

Abe

Iki

2017

ANAL. SCI.

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Upon mixing with metal ions such as Cd II , Tb III , Cu II , Ni II , Pb II , Zn II , and Co II at pH 10.0, solutions of silver nanoparticles (AgNPs) coated with calix[4]arene-p-tetrasulfonate (CAS-AgNP) exhibited multi-coloration from yellow to orange, violet, and green, depending on the metal elements present, which allowed for visual discrimination of the ions. This is contrary to the AgNP sensors exhibiting a uniform color change from yellow to red upon binding of a receptor molecules at the surface of AgNPs to an analyte. The TEM images of the samples obtained from the resultant solution showed two regions. First, a region where CAS-AgNPs assembled on the surface of the metal hydroxides. The size of the hydroxide crystals varied from 50 to 200 nm with the type of metal element present, and roughly correlated with the extinction band of the aggregated AgNPs. Second, the amorphous region in which CAS-AgNPs dispersed randomly. The difference in the amount of the crystal region and the area seemed to lead to the multi-coloration.

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Transition metal and lanthanide cluster complexes constructed with thiacalix[n]arene and its derivatives

Cited by 187 publications

References 45 publications

Self‐Assembly from Two‐Dimensional Layered Networks to Tetranuclear Structures: Syntheses, Structures, and Properties of Four Copper–Thiacalix[4]arene Compounds

Self‐Assembly from Two‐Dimensional Layered Networks to Tetranuclear Structures: Syntheses, Structures, and Properties of Four Copper–Thiacalix[4]arene Compounds

Selective Extraction Ability of Thiacalix[6]arene Derivatives from Rare Metal Mixed Solution

Multi-coloration of Calixarene-coated Silver Nanoparticles for the Visual Discrimination of Metal Elements

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