Lithium Isotope Separation by 12‐Metallacrown‐3 Complexes | Zendy

Grote Zacharias | Zendy; Wizemann HansDieter | Zendy; Scopelliti Rosario | Zendy; Severin Kay | Zendy

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Lithium Isotope Separation by 12‐Metallacrown‐3 Complexes

Author(s) -

Grote Zacharias,

Wizemann HansDieter,

Scopelliti Rosario,

Severin Kay

Publication year - 2007

Publication title -

zeitschrift für anorganische und allgemeine chemie

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.354

H-Index - 66

eISSN - 1521-3749

pISSN - 0044-2313

DOI - 10.1002/zaac.200600366

Subject(s) - chemistry , lithium (medication) , adduct , isotopes of lithium , isotope , methanol , base (topology) , spectroscopy , inorganic chemistry , medicinal chemistry , crystallography , organic chemistry , ion , ion exchange , medicine , mathematical analysis , physics , mathematics , quantum mechanics , endocrinology

The 12‐metallacrown‐3 complexes [(C 6 H 5 Me)Ru(C 5 H 3 NO 2 )] 3 ( 3 ), [(C 6 H 3 i Pr 3 )Ru(C 5 H 3 NO 2 )] 3 ( 4 ) and [(C 6 Me 6 )Ru(C 5 H 3 NO 2 )] 3 ( 5 ) were synthesizes by reaction of the corresponding [(arene)RuCl 2 ] 2 complex with 2,3‐dihydroxypyridine in the presence of base. Addition of LiCl in methanol gave the adducts 3× LiCl, 4× LiCl and 5× LiCl. The complexes 3 , 3× LiCl and 4× LiCl were analyzed by single crystal X‐ray crystallography. The ability of the metallacrown complexes to differentiate between the isotopes 6 Li + and 7 Li + was investigated by isotope selective laser graphite furnace atomic absorption spectroscopy. It was found that the macrocycle 5 preferentially binds to the smaller isotope 7 Li + .

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