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Cooperation of Coordinative and π···π Interaction in Directing Two‐fold Interpenetrated Architecture of Two Eu/Dy(III) 2‐Sulfoterephthalate Complexes with 4,4′‐Bipyridine
Author(s) -
Ren YiXia,
An Miao,
Chai HongMei,
Zhang MeiLi,
Wang JiJiang
Publication year - 2015
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.201400488
Subject(s) - europium , lanthanide , crystallography , chemistry , monoclinic crystal system , 4,4' bipyridine , bipyridine , ion , sulfonate , fluorescence , crystal structure , dysprosium , stereochemistry , molecule , inorganic chemistry , hydrogen bond , organic chemistry , sodium , physics , quantum mechanics
Abstract Two novel lanthanide coordination polymers, {[Ln(stp)(bipy)(H 2 O)] · (H 2 O)} n [Ln = Eu ( 1 ) and Dy ( 2 )], were synthesized by hydrothermal reactions of 2‐sulfoterephthalate (stp) and 4,4′‐bipyridine (bipy) ligands with europium/dysprosium(III) salts. Structural analyses show that both complexes 1 and 2 are isomorphic and crystallize in the monoclinic crystal system with space group P 2 1 / n . Complex 1 exhibits a two‐dimensional grid‐like structure from europium(III) ions bridged by the carboxyl and sulfonate groups of stp ligands. Notably, the stretching 4,4′‐bipyridine ligands besides the 2D grid‐like layers form π ··· π interactions and interpenetrate into the empty voids of another adjacent layer into a twofold interpenetrated structure. Fluorescence analysis show that the emission of two complexes exhibit the characteristic peaks of lanthanide ions.