ISSN:
0009-2940
Keywords:
Semicorrins, tetrazolyl enols as bi- and tridentate chelate ligands
;
Bis(semicorrinato)iron(II) complexes
;
Fe(II)- and Cu(II) 3D-coordination polymers
;
Spontaneous self-assembly
;
EPR spectra
;
Mössbauer spectra
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Siderophores, II[1]. - Tetrazolyl Enolate and Semicorrinate Anions as Chelate Ligands for Iron(II) and Copper(II) Ion: From Molecular to Collective Structures
Notes:
Reaction of tetrazolyl enolate 2 (HL2) with Cu(II) acetate yields the 3D-coordination polymer 4 ([CuL22]n). the structure of which is unequivocally established by single-crystal X-ray diffraction. The formation of 4 is understandable if 2 or its enolate is considered as tridentate chelate ligand and if an intermediate formation of the coordinatively unsaturated copper(II) building block 6 is assumed. The monomers 6 are bidentate coordinating by the two CN groups, which leads to linking of monomers and to coordinative saturation at the copper(II) center of 6 with formation of three-dimensional 4. Semicorrin 8 (HL4), however, reacts with Fe(II) to give the exceptional mononuclear tetrahedral chelate complex 10 (X-ray). EPR and Mössbauer spectra of 4 and 10 are discussed.
Additional Material:
4 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/cber.19921251022
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