Formation of coordination polymeric structures on the basis of 4,4"-dipyridylethylene and Ag+ in solutions |
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| Authors: | Razumov V F Brichkin S B Pilugina O M Karpova T P Vatsadze S Z Lemenovskii D A Schröder M Champness N R Alfimov M V |
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| Institution: | (1) Russian Academy of Sciences, Institute of Problems of Chemical Physics, 18 Institutskii prosp., 142432 Chernogolovka, Moscow Region, Russian Federaton;(2) Chemical Department, Moscow State University, Leninskie Gory, 119899 Moscow, Russian Federation;(3) Department of Chemistry, The University of Nottingham, Nottingham, UK, NG7 2RD;(4) Center of Photochemistry, Russian Academy of Sciences, 7a ul. Novatorov, 117421 Moscow, Russian Federation |
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| Abstract: | The formation of coordination polymeric chain structures in which silver ions alternate with dipyridylethylene (DPyEt) ligands was studied. In a homogeneous ethanol solution, complex formation of DPyEt with silver cations takes place. The outcome of this reaction depends on the ligand/cation molar ratio, the initial ligand concentration, and the counter-ion type. Conditions were identified under which the coordination polymer is formed as a microdispersed solid precipitating from the solution. The precipitates formed in the DPyEt—AgNO3 and DPyEt—AgClO4 systems were investigated by various experimental techniques. The counter-ion was found to be incorporated in the polymer and to influence the structure of the precipitate particles. |
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| Keywords: | complex formation coordination polymers dipyridylethylene ligands silver cations |
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