Silver Ion Inclusion by Calix[4]arene Ethers

Xu, Wu; Puddephatt, Richard J.; Muir, Kenneth W.; Torabi, A. A.

doi:10.1021/om00020a021

Cited by 49 publications

(22 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It has previously been reported that the conformation of Oalkylated calixarenes can be frozen as a single conformation, the partial cone, by complexation with the silver cation, which binds to two arene groups and one ether group (10). In agreement, addition of silver (1) …”

Section: Cone Partial Conementioning

confidence: 81%

Propargyl calix[4]arenes and their complexes with silver(I) and gold(I)

Xu¹,

Vittal²,

Puddephatt³

1996

Can. J. Chem.

Self Cite

View full text Add to dashboard Cite

A calix [4]arene 10 has been substituted at the lower rim by reaction with propargyl bromide to give either the 1,3-bis(propargy1) derivative 20, which is formed regioselectively, or the tetrakis(0-propargyl)calix [4]arene 3 under different reaction conditions. The molecular structure of 2b has been characterized by X-ray analysis (monoclinic, space group P2,lc, Z = 4, a = 10.960(1), b = 24.302(3), c = 10.673(1) A, P = 112.99(8)", R = 0.05 16). The molecules of 20 in the crystal are arranged in a "head-to-head, tail-to-tail" manner with aphenyl substituent of one molecule partly enclosed in the bowlic cavity of another. Since the two OCH,CECH groups are accessible, 2b can be polymerized by heating to 250°C and the polymerized propargyl calix[4]arene derivatives are stable up to 460°C. Compound 3 exists as a mixture of conformers, the ratio of partial cone to 1,3-alternate conformations being 4: 1 or 2: 1, dependent on the preparative conditions. These propargyl calix[4]arene derivatives can be further derivatized to form silver(1) or gold (1)

show abstract

Section: Cone Partial Conementioning

confidence: 81%

Propargyl calix[4]arenes and their complexes with silver(I) and gold(I)

Xu¹,

Vittal²,

Puddephatt³

1996

Can. J. Chem.

Self Cite

View full text Add to dashboard Cite

show abstract

“…2), which confirms the influence of the size of the calixarene skelton and the role of Ag þ interactions with the aromatic rings of calix [4]arenes. [17] The latter are likely to be involved in the Ag extraction (11%) by unsubstituted calix [4]arenes. [13] As observed for ungrafted sulfides (OBS .…”

Section: Extraction Of Ag and Pd From Nitric And Nitric/nitrous Solutmentioning

confidence: 99%

Upper Rim Thioether Derivatives of Calix[4,6]Arenes: Extraction of Fission Pd(II) and Ag(I)

Torgov

Костин

Корда

et al. 2005

Solvent Extraction and Ion Exchange

View full text Add to dashboard Cite

We report studies on the Pd(II) and Ag(I) complexation and extraction by tetraalkyl(tolyl)thiomethylcalix[4]arenes (1a -c) stabilized in the cone conformation, and by the stereochemically mobile tetraalkyl(tolyl)thiomethylcalix[6]arenes (2a, b). These are found to be 100-1000 times more efficient as extractants of nitric and nitrous forms of Pd(II) and Ag(I) than their ungrafted monodentate analogues. Extraction experiments performed on real HLW show that tetrabutylthiomethylcalix[4]arene 1b is able to concentrate and separate Pd from main fission products. The extraction constants for mono-and binuclear Ag complexes have been determined. The stoichiometry and structural features of the complexes of Pd and Ag have been studied experimentally by extraction, IR-and mass-spectroscopy methods as well as in quantum-mechanical calculations.

show abstract

“…The benzene molecules and F atoms are disordered. It is worth mentioning that the benzene, used as crystallized solvent in synthesis, was revealed as a coordinated ligand in 1 as evidenced by the short Ag1-C1 distance of 2.263(11)Å [22].…”

Section: Crystal Structural Characterizationsmentioning

confidence: 99%

A photochromic AgBF 4 complex with cis -1,2-dicyano-1,2-bis(2′,4′,5′-trimethyl-3′-thienyl)ethene: Synthesis, structure and photochromism

Han

et al. 2017

Inorganica Chimica Acta

View full text Add to dashboard Cite

Silver Ion Inclusion by Calix[4]arene Ethers

Cited by 49 publications

References 0 publications

Propargyl calix[4]arenes and their complexes with silver(I) and gold(I)

Propargyl calix[4]arenes and their complexes with silver(I) and gold(I)

Upper Rim Thioether Derivatives of Calix[4,6]Arenes: Extraction of Fission Pd(II) and Ag(I)

A photochromic AgBF 4 complex with cis -1,2-dicyano-1,2-bis(2′,4′,5′-trimethyl-3′-thienyl)ethene: Synthesis, structure and photochromism

Contact Info

Product

Resources

About