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Supramolecular complexes of cobalt(II), manganese(II) and cadmium(II) with bis(terpyridine) ligand as novel luminescent materials

Wałęsa-Chorab M., Gorczyński A., Marcinkowski D., Hnatejko Z., Patroniak V.

Polish Journal of Chemical Technology

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2013

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Vol. 15, nr 3

91-95

EN

Self-assembly of N6-donor bis(terpyridine) ligand L with transition metal ions: Co(II), Mn(II) and Cd(II) leads to a formation of three kinds of supramolecular complexes. In the electronic absorption and emission spectra of supramolecular complexes additional bands were observed what was ascribed to the coordination of ligand molecules to metal ions. Luminescence properties of these complexes strongly depend on the kind of metal ions and counter ions. The effective blue luminescence was observed in the case of Mn(II) and Cd(II) complexes in which all N-donor atoms of ligand molecules coordinate with the metal center.

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Architektury supramolekularne jako wynik samoorganizacji w kompleksach jonów metali d- i f- elektronowych

Patroniak V.

Wiadomości Chemiczne

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2010

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[Z] 64, 3-4

285-318

EN

The use of transition metal complexes of bridging multidentate ligands to construct predictable, self-assembled small inorganic systems and multi-dimensional infinite networks is an area of chemistry which has received ever-increasing attention over the recent years. Self-organization occurs usually from a mixture of components (organic ligands, salt crystals, and sometimes solvent molecules). The products exhibit a notable thermodynamic and kinetic stability and their components should contain all the information necessary for a correct assembly to occur [1–6]. Self-assembly has recently been studied in many types of organic and inorganic systems. This latter approach has proven particularly successful for the generation of a wide spectrum of architectural topologies such as for example, helicates [7–11], rotaxanes [12, 13], clusters [14–16], ladders [17–19], cages [20–22], grids [23–25] and molecular wheels [26–28], etc., based on ligand design and an application of suitable coordination geometries for the assembling system. The structure of supramolecular complexes depends strongly on the ligand substituent, the ligand conformation, the metal ion, the counterion, the solvent, and the reaction conditions [29–37]. Such compounds may exhibit novel physical and chemical properties with a potential use in supramolecular engineering, nanotechnology, biomedical inorganic chemistry, biological catalysis, and in the area of sensors [38–46]. The review has been prepared on the results of my own studies in the field [47–59] and focused on structural diversity and characterization of supramolecular complexes. The architectures of these compounds generated by self-assembly of polypirydyl ligands with d-and f-metal ions are fascinating and attractive because of their unusual properties and prospective implementation in many application [60–74].

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Self-Assembled Grid-Type Complexes of Manganese(II), Iron(II), Cobalt(II) and Zinc(II)

Ciesielski A., Wałęsa M., Patroniak V.

Polish Journal of Chemistry

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2008

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Vol. 82, nr 6

1231-1236

EN

The self-assembly of the heterotopic ligand L, containing two N-tridentate binding units, with manganese(II), iron(II), cobalt(II) and zinc(II) carried out to the formation of supramolecular architectures containing four ions in octahedral coordination sites. The [2x2] grid-type structures have been characterized by the spectroscopic data and microanalyses.

4

New Dinuclear Nonaazadentate Schiff Base Podates of Rare Earth(III) Ions

Patroniak V.

Polish Journal of Chemistry

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2005

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Vol. 79 / nr 1

57-64

EN

As a result of [1+2] Schiff base condensation in the template reaction between 2,6-diacetylpyridine and 3,7-diazanonane-1,9-diamine in the presence of rare earth(III) ions (M = Y3+, La3+, Pr3+, Sm3+, Eu3+, Gd3+, Tb3+, Ho3+, Er3+, Tm3+, Yb3+), new dinuclear architectures containing a ligand with N9 set of donor atoms with terminal amine groups have been formed. The complexes have been characterized by the spectroscopic and thermogravimetric data and microanalyses.

5

Kompleksy kratkowe

Patroniak V.

Wiadomości Chemiczne

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2004

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[Z] 58, 1-2

59--79

EN

The supramolecular chemistry is one of the most intensely developed fields of contemporary chemistry. Supramolecular chemistry may be defined as "chemistry beyond the molccule", bearing on the organized entities of higher complexity that result from association of two or more chemical species hold together by intermolecular forces [1]. Self-assembly involves the direct and spontaneous formation of a closed superstructure or polymer from a mixture of components (organic ligands, salts crystals, and sometimes molecules of solvents). The product exhibits a notable thermodynamic and kinetic stability and its components should contain all the information necessary for a correct assembly to occur. Self-assembly has recently been achieved in many types of organic and inorganic systems [2-I 1]. The inorganic self-assembly involves spontaneous generation of well-defined metallo-supramolecular architectures from mixtures of organic ligands and metal ions. This latter approach has proven particularly successful for the generation of a wide spectrum of architectural topologies such as for example, inorganic double [12-15], triple [16-20] and quadruple [21] helicates [22-25], rotaxanes [26-29], clusters [30-35], racks [36, 37], ladders [38, 39], cages [40-47], wheels [48, 49], grids [50-90] etc., based on ligand design and the application of suitable coordination geometries for the assembling system. Among them, there is an increasing interest in grid-type complexes, based on ligands containing oligopyridine type of sites and a various d-metal ions. The grids are the thermodynamically most stable motif when metal ions of octahedral coordination geometry are combined with a planar ligand containing tridentate binding sites. Such compounds may exhibit novel physical and chemical properties with interesting and useful potential applications in supramolecular engineering, nanotechnology, biomedical inorganic chemistry, biological catalysis, and in the area of sensors. Transistors incorporating complexes containing cobalt ion bonded to polypyridyl ligands have been reported recently, which is expected to be important in molecular electronics and in the study of the physics of nanoscale systems [91] The structure of grid-type complexes depends strongly on the ligand substituent, the ligand conformation, the metal ion, the counterion, the solvent, and the reaction conditions. The paper has been prepared on the basis of literature in the field and results of my own studies. The main contribution is a deseription of synthesis and characterization of the grid-type complexes, taking into regard their untypical properties and structure.