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Title: Temperature-Sensitive Structural Speciation of Cobalt-Iminodialcohol-(N,N'-Aromatic Chelator) Systems: Lattice Architecture and Spectrochemical Properties
Authors: Matsia, Sevasti 
Menelaou, Melita 
Hatzidimitriou, Antonios 
Tangoulis, Vassilis 
Lalioti, Nikolia 
Ioannidis, Nikolaos E. 
Blömer, Laura 
Kersting, Berthold 
Salifoglou, Athanasios 
Major Field of Science: Natural Sciences
Field Category: Chemical Engineering
Keywords: Cluster compounds;Cobalt;Magnetic properties;Metal-organic materials;Structure-activity relationships;Synthesis design
Issue Date: 16-Aug-2020
Source: European Journal of Inorganic Chemistry, no.30, pp. 2919-2940
Issue: 30
Start page: 2919
End page: 2940
Journal: European Journal of Inorganic Chemistry 
Abstract: emperature-sensitive crystalline phases, pertaining to discrete clusters of binary and ternary Co(II,III):iminodipropanol:(N,N'-aromatic binder) systems, were prepared. The rich structural speciation of such systems in alcoholic media and their unique structural, magnetic, and spectroscopic profiles have been demonstrated. The need to understand the chemical reactivity of such complex ternary Co(II)-(1,1'-iminodi-2-propanol) systems, in the presence of N,N'-aromatic chelators 2,2'-bipyridine and 1,10-phenanthroline and aromatic binder 4,4'-bipyridine in methanol, led to the synthetic development of well-defined hybrid metal-organic materials with discrete spectroscopic, structural, electrochemical, and magnetic properties. The surprisingly plethoric family of the prepared mononuclear-trinuclear-tetranuclear Co(II,III) clusters was characterized through elemental analysis, FT-IR, and X-ray crystallography. Enrichment of their physicochemical profile originated from electrochemical, optical (UV/Vis, luminescence), magnetic, and EPR studies, unequivocally supporting their structural formulation. Collectively, the experimentally and theoretically (Bond-Valence-Sum, Hirshfeld) perused structures project the influence of molecular stoichiometry and temperature on targeted synthetic efforts toward crystal engineering of discrete Co(II,III)-center assemblies, exemplifying structure-reactivity correlations and magneto-optical-structural attributes.
ISSN: 1434-1948
DOI: 10.1002/ejic.202000435
Rights: © 2020 WILEY-VCH Verlag
Type: Article
Affiliation : Aristotle University of Thessaloniki 
University of Patras 
Institute of Nanoscience and Nanotechnology 
Universität Leipzig 
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