Conformational Preference of the Torand Ligand in Its Complexes with Potassium and Rubidium Picrate | Zendy

Bell Thomas W. | Zendy; Cragg Peter J. | Zendy; Drew Michael G. B. | Zendy; Firestone Albert | Zendy; Kwok DawIong A. | Zendy

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Conformational Preference of the Torand Ligand in Its Complexes with Potassium and Rubidium Picrate

Author(s) -

Bell Thomas W.,

Cragg Peter J.,

Drew Michael G. B.,

Firestone Albert,

Kwok DawIong A.

Publication year - 1992

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199203451

Subject(s) - picrate , rubidium , chemistry , crystallography , ligand (biochemistry) , ring (chemistry) , metal , metal ions in aqueous solution , ion , potassium , stereochemistry , receptor , organic chemistry , biochemistry

Despite the different sizes of the metal ions , torand 1 retains its staggered conformation in the complexes 1 · K + (picrate − ) and 1 · Rb + (picrate − ), as established by X‐ray structure determinations. In contrast, other macrocyclic ligands usually adjust their conformation according to the bonding demands of the metal ions. The exceptionally rigid cavity of 1 constructed from condensed ring systems is responsible for this behavior.

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