Phenylthiolate as a σ- and π- donor ligand: synthesis of a 3-D organometallic coordination polymer [K2Fe(SPh)4]n

2004 ◽  
pp. 1542-1543 ◽  
Author(s):  
Xiao-Yan Yu ◽  
Guo-Xin Jin ◽  
Lin-Hong Weng
Keyword(s):  
Coordination Polymer ◽  
Donor Ligand ◽  
Ligand Synthesis

A new photoluminescent coordination polymer constructed with an N-donor ligand having extended coordination capabilities derived from quinoline and pyridine

2020 ◽  
Vol 76 (5) ◽  
pp. 500-506
Author(s):  
Kamil Twaróg ◽  
Małgorzata Hołyńska ◽  
Andrzej Kochel
Keyword(s):  
Coordination Polymer ◽  
Pyridyl Ring ◽  
Ligand Molecule ◽  
Hydrothermal Conditions ◽  
Absorption Bands ◽  
Donor Ligand ◽  
One Dimensional ◽  
The One ◽  
Chloride Monohydrate ◽  
Carboxylic Acid Ligand

Employment of the organic 2-(pyridin-4-yl)quinoline-4-carboxylic acid ligand with extended coordination capabilities leads to the formation of the one-dimensional copper(II) coordination polymer catena-poly[[diaquacopper(II)]-bis[μ-2-(pyridin-4-yl)quinoline-4-carboxylato]-κ2 N 2:O;κ2 O:N], {[Cu(C15H9N2O2)2(H2O)2]·2H2O} n , under hydrothermal conditions. The ligand, isolated as its hydrochloride salt, namely, 4-(4-carboxyquinolin-2-yl)pyridinium chloride monohydrate, C15H11N2O2 +·Cl−·H2O, reveals a pseudosymmetry element (translation a/2) in its crystal structure. The additional pyridyl N atom, in comparison with the previously reported analogues with an arene ring instead of the pyridyl ring in the present ligand molecule, promotes the formation of a one-dimensional coordination polymer, rather than discrete molecules. This polymer shows photoluminescent properties with bathochromic/hypsochromic shifts of the ligand absorption bands, leading to a single band at 479 nm. The CuII ions are involved in weak antiferromagnetic interactions within dimeric units, as evidenced by SQUID magnetometry.

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