Design and Synthesis of Redox-Switched Lariat Ethers and Their Application for Transport of Alkali and Alkaline-Earth Metal Cations Across Supported Liquid Membrane | Zendy

Anubhuti Awasthy | Zendy; M. P. Bhatnagar | Zendy; Jyoti Tomar | Zendy; Uma Sharma | Zendy

Open Access

Design and Synthesis of Redox-Switched Lariat Ethers and Their Application for Transport of Alkali and Alkaline-Earth Metal Cations Across Supported Liquid Membrane

Author(s) -

Anubhuti Awasthy,

M. P. Bhatnagar,

Jyoti Tomar,

Uma Sharma

Publication year - 2006

Publication title -

bioinorganic chemistry and applications

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.865

H-Index - 35

eISSN - 1565-3633

pISSN - 1687-479X

DOI - 10.1155/bca/2006/97141

Subject(s) - ionophore , chemistry , alkaline earth metal , membrane , inorganic chemistry , alkali metal , metal , qualitative inorganic analysis , redox , metal ions in aqueous solution , organic chemistry , biochemistry

A new class of redox-switched anthraquinone derived lariat ethers 1-(1-anthraquinonyloxy) 3, 6, 9 trioxaundecane 11-ol ( M 1 ), 1-(1-anthraquinonyloxy) 3, 6 dioxaoctane 9-ol ( M 2 ), 1-(1-anthraquinonyloxy) 3 oxapentane 5-ol ( M 3 ), 1-(1-anthraquinonyloxy) 3 oxapentane 5-butane ( M 4 ), 1-(1-anthraquinonyloxy) 3, 6 dioxaoctane 9-methane ( M 5 ) and 1-(1-anthraquinonyloxy) 3 oxapentane 5-methane ( M 6 ) have been synthesized and characterized by spectral analysis. These ionophores were used in liquid membrane carrier facilitated transport of main group metal cations across supported liquid membrane (SLM). Cellulose nitrate membrane was used as membrane support. Effect of various parameters such as variation in concentration of metal as well as ionophore, effect of chain length and end group of ionophore have been studied. The sequence of metal ions transported by ionophore M 1 is Na + > Li + > K + > Ca 2+ > Mg 2+ and the order of metal ions transported by ionophores ( M 2 – M 6 ) is Li + > Na + > K + > Ca 2+ > Mg 2+ . Ionophore M 1 is selective for Na + , Li + , and K + and ionophores ( M 2 – M 6 ) are selective for Li + and Na + .

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