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Syntheses and structures of one Cu I ‐containing coordination polymer and two macrocyclic supramolecular complexes based on flexible 1,3,4‐oxadiazole‐containing ligands
Author(s) -
Wu XiangWen,
Wu WanFu,
Yin Shi,
Ma JianPing
Publication year - 2015
Publication title -
acta crystallographica section c
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 17
ISSN - 2053-2296
DOI - 10.1107/s2053229615012929
Subject(s) - sulfanyl , chemistry , butane , supramolecular chemistry , dichloromethane , crystallography , ligand (biochemistry) , medicinal chemistry , perchlorate , propane , stereochemistry , polymer chemistry , crystal structure , solvent , ion , organic chemistry , biochemistry , receptor , catalysis
Three coordination complexes with Cu I centres have been prepared using the symmetrical flexible organic ligands 1,3‐bis{[5‐(quinolin‐2‐yl)‐1,3,4‐oxadiazol‐2‐yl]sulfanyl}propane ( L 1) and 1,4‐bis{[5‐(quinolin‐2‐yl)‐1,3,4‐oxadiazol‐2‐yl]sulfanyl}butane ( L 2). Crystallization of L 1 with Cu(SO 3 CF 3 ) 2 and of L 2 with Cu(BF 4 ) 2 and Cu(ClO 4 ) 2 in a CH 2 Cl 2 /CH 3 OH mixed‐solvent system at room temperature afforded the coordination complexes catena ‐poly[[copper(I)‐μ‐1,3‐bis{[5‐(quinolin‐2‐yl)‐1,3,4‐oxadiazol‐2‐yl]sulfanyl}propane] methanesulfonate dichloromethane 0.6‐solvate], {[Cu(C 25 H 18 N 6 O 2 S 2 )](CF 3 SO 3 )·0.6CH 2 Cl 2 } n , (I), bis(μ‐1,4‐bis{[5‐(quinolin‐2‐yl)‐1,3,4‐oxadiazol‐2‐yl]sulfanyl}butane)dicopper(I) bis(tetrafluoridoborate)–dichloromethane–methanol (1/1.5/1), [Cu 2 (C 26 H 20 N 6 O 2 S 2 ) 2 ](BF 4 ) 2 ·1.5CH 2 Cl 2 ·CH 3 OH, (II), and bis(μ‐1,4‐bis{[5‐(quinolin‐2‐yl)‐1,3,4‐oxadiazol‐2‐yl]sulfanyl}butane)dicopper(I) bis(perchlorate)–dichloromethane–methanol (1/2/1), [Cu 2 (C 26 H 20 N 6 O 2 S 2 ) 2 ](ClO 4 ) 2 ·2CH 2 Cl 2 ·CH 3 OH, (III). Under the control of the dumbbell‐shaped CF 3 SO 3 − anion, complex (I) forms a one‐dimensional chain and neighbouring chains form a spiral double chain. Under the control of the regular tetrahedron‐shaped BF 4 − and ClO 4 − anions, complexes (II) and (III) have been obtained as bimetallic rings, which further interact via π–π interactions to form two‐dimensional networks. The anions play a decisive role in determining the arrangement of these discrete molecular complexes in the solid state.