Ferromagnetic Interactions in an Unusual 2D Coordination Polymer Including Di-2-pyridylketone-Methoxilated Anion, (1,1)-Azide, and Rare (1,1,3,3)-Azide Bridging Ligands

Abstract

ACKNOWLEDGMENTThis work was supported by the Universidad del País Vasco (UPV/EHU) (UPV00169. EHU 2010/14), the Spanish Ministerio de Ciencia y Tecnología (MCYT) (CTQ2005-05778-PPQ), and the Basque Government (project IT-282-07). N.D. P. thanks UPV/EHU for financial support from "Convocatoria para la concesi on de ayudas de especializaci on para investigadores doctores en la UPV/EHU (2008)".

Crystal structure of poly[(μ3-9H-carbazole-3,6-dicarboxylato-κ3 O 1: O 2: O 3)(μ2-4-(pyridin-4-yl)pyridine-κ2 N 1:N 1′)zinc(II)], C19H11N2O4Zn

“…These two-dimensional layers are packed together to form three-dimensional framework structures. In addition, similar two-dimensional structures have been reported, for example, [Cu4(dpk 3CH 3 O) 2 (N 3 ) 6 ]n and [Co(L) 2 (SCN) 2 •2(CH 3 CN)•2(dmf)]n [10,11].…”

Nitrato, Pseudohalo‐Linked Zn(II)/Cd(II) Schiff‐Base Complexes with 1,3‐Diimine Spacer Group: Syntheses, Crystal Structures, DFT, TD‐DFT and Fluorescence Studies

“…Utilizing the aforesaid advantages of Cd(II)/Zn(II) metal and salen based tetradentate acyclic bi‐compartmental ligands many research groups have reported bi, tri, hetero or polynuclear complexes in presence of organic or inorganic linkers as auxiliary moieties . In order to construct diverse topologies and frameworks of salen based ligands, inorganic bridging azide co‐ligands is very attractive owing to their bridging propensity of adjacent metal ions due to their smaller length, rigidity and versatile coordination modes of donor atoms such as μ 1,1 ‐(end‐on, EO), μ 1,3 ‐(end‐to‐on, EE), μ 1,1 , 1 ‐, μ 1,1 , 3 ‐, μ 1,3 , 1,1 ‐, μ 1,1 , 3,3 ‐ etc . Hence Cd(II)/Zn(II) bi or tri‐nuclear complexes which are derived from salen‐ type Schiff base ligands and azide ions as co‐ligands are of current interest to both structural and synthetic chemists because of their unique pale color, higher thermally stability and possible strong attracting photoluminescence properties .…”

Syntheses, Crystal Structures and Photophysical Aspects of Discrete and Polymeric Azido‐Bridged Zinc(II) and Cadmium(II) Complexes: Sensing Properties and Structural Resemblance

“…Self‐assembled supramolecular architectures are of great interest due to the aesthetic beauty and potential as functional materials. In supramolecules, the individual building blocks may be self‐assembled by covalent bonds, coordinate bonds and weak interactions like hydrogen bonds, π⋅⋅⋅π stacking interactions, halogen bonds, carbonyl⋅⋅⋅carbonyl interaction, etc . Coordination polymers, including metal organic frameworks, belong to a class of supramolecules in which the nodes are metal complexes and the linkers are bridging organic or inorganic ligands .…”

“…In supramolecules, the individual building blocks may be self‐assembled by covalent bonds, coordinate bonds and weak interactions like hydrogen bonds, π⋅⋅⋅π stacking interactions, halogen bonds, carbonyl⋅⋅⋅carbonyl interaction, etc . Coordination polymers, including metal organic frameworks, belong to a class of supramolecules in which the nodes are metal complexes and the linkers are bridging organic or inorganic ligands . Regarding inorganic bridging ligands, azide is a nice linker because it can coordinate to metal ions in various modes such as μ 1,1 ‐ (end‐on; commonly expressed as EO), μ 1,3 ‐ (end‐to‐end; commonly expressed as EE), μ 1,1,1 ‐, μ 1,1,3 ‐, μ 1,1,1,1 ‐, and μ 1,1,3,3 ‐ ,.…”

“…Coordination polymers, including metal organic frameworks, belong to a class of supramolecules in which the nodes are metal complexes and the linkers are bridging organic or inorganic ligands . Regarding inorganic bridging ligands, azide is a nice linker because it can coordinate to metal ions in various modes such as μ 1,1 ‐ (end‐on; commonly expressed as EO), μ 1,3 ‐ (end‐to‐end; commonly expressed as EE), μ 1,1,1 ‐, μ 1,1,3 ‐, μ 1,1,1,1 ‐, and μ 1,1,3,3 ‐ ,. Although several azido bridged coordination polymers as well as discrete systems have been reported previously, exploration of metallo‐azides always deserves attention because of the uncertainty of the product and accompanied probability of getting new types of structures and associated properties.…”