In:
Chemistry – A European Journal, Wiley, Vol. 11, No. 22 ( 2005-11-04), p. 6673-6686
Abstract:
Reactions of the antimicrobial fluoroquinolone ciprofloxacin (cfH) with metal salts in the presence of aromatic polycarboxylate ligands or under basic conditions produce fourteen new metal–cfH complexes, namely, [Ba 2 (cf) 2 (1,4‐bdc)(H 2 O) 2 ]⋅H 2 O ( 1 ), [Sr 6 (cf) 6 (1,4‐bdc) 3 (H 2 O) 6 ]⋅2 H 2 O ( 2 ), [M 2 (cfH) 2 (bptc)(H 2 O) 2 ]⋅8 H 2 O (M = Mn( 3) and Cd( 4 )), [M(cfH)(1,3‐bdc)] (M = Mn( 5 ), Co( 6 ), and Zn( 7 )), [Zn 2 (cfH) 4 (1,4‐bdc)](1,4‐bdc)⋅13 H 2 O ( 8 ), [Ca(cfH) 2 (1,2‐Hbdc) 2 ]⋅2 H 2 O ( 9 ) and [M(cf) 2 ]⋅2.5 H 2 O (M = Mn( 10 ), Co( 11 ), Zn( 12 ), Cd( 13 ), and Mg( 14 )) (1,4‐bdc = 1,4‐benzenedicarboxylate, bptc = 3,3′,4,4′‐benzophenonetetracarboxylate, 1,3‐bdc = 1,3‐benzenedicarboxylate, 1,2‐bdc = 1,2‐benzenedicarboxylate). Their structures were determined by single‐crystal X‐ray diffraction analyses and further characterized by elemental analyses, IR spectra, and thermogravimetric analyses. The structures of 1 and 2 consist of unique two‐dimensional arm‐shaped layers. Compounds 3 and 4 are isostructural and feature one‐dimensional structures formed from the interconnection of [M 2 (cfH) 2 (H 2 O) 2 ] dimers with bptc ligands. Compounds 5 – 7 are isostructural and contain double‐chain‐like ribbons constructed from [M 2 (cfH) 2 (CO 2 ) 2 ] dimers and 1,3‐bdc. Compound 8 consists of a pair of [Zn(cfH) 2 ] 2+ fragments bridged by a 1,4‐bdc into a dinuclear dumbbell structure. Compound 9 is a neutral monomeric complex. To the best of our knowledge, compounds 1 – 9 are the first examples of metal‐quinolone complexes that contain aromatic polycarboxylate ligands. Compounds 10 – 14 are isostructural and exhibit interesting two‐dimensional rhombic grids featuring large cavities with dimensions of 13.6×13.6 Å. Up to now, polymeric extended metal–cfH complexes have never been reported.
Type of Medium:
Online Resource
ISSN:
0947-6539
,
1521-3765
DOI:
10.1002/chem.200500548
Language:
English
Publisher:
Wiley
Publication Date:
2005
detail.hit.zdb_id:
1478547-X
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