A new cationic species [Cu(temed)(H2O)4]2+ has been isolated in the form of a complex 1, [Cu(temed)(H2O)4](1,5-napthalenedisulphonate).2H2O (1) (where temed = N,N.N’N’- tetramethylethylenediamine). The complex 1 was crystallized from a reaction of sodium salt of 1,5-napthalenedisulphonate with equimolar quantity of CuCl2.2H2O and temed in methanol:water (4:1, v/v) mixture and characterized by elemental analyses, spectroscopic techniques (e.g. UV/Visible, IR) and conductivity measurements. Single crystal X-ray structure determination revealed the presence of discrete ions: one [Cu(temed)(H2O)4]2+ complex cation, one 1,5-napthalenedisulphonate anion and two water molecules of crystallization. The crystal lattice is stabilized by the extensive hydrogen bonding (O-H…O and C-H…O) between the cationic and anionic moieties resulting in a bi-layered structure, the new cationic species being caged in H-bonding network of anions. DFT calculations indicated a different geometry.
Characterization, single crystal structure and DFT calculations of [Cu(temed)(H2O)4](1,5-napthalenedisulphonate).2H2O
FERRETTI, Valeria
2014
Abstract
A new cationic species [Cu(temed)(H2O)4]2+ has been isolated in the form of a complex 1, [Cu(temed)(H2O)4](1,5-napthalenedisulphonate).2H2O (1) (where temed = N,N.N’N’- tetramethylethylenediamine). The complex 1 was crystallized from a reaction of sodium salt of 1,5-napthalenedisulphonate with equimolar quantity of CuCl2.2H2O and temed in methanol:water (4:1, v/v) mixture and characterized by elemental analyses, spectroscopic techniques (e.g. UV/Visible, IR) and conductivity measurements. Single crystal X-ray structure determination revealed the presence of discrete ions: one [Cu(temed)(H2O)4]2+ complex cation, one 1,5-napthalenedisulphonate anion and two water molecules of crystallization. The crystal lattice is stabilized by the extensive hydrogen bonding (O-H…O and C-H…O) between the cationic and anionic moieties resulting in a bi-layered structure, the new cationic species being caged in H-bonding network of anions. DFT calculations indicated a different geometry.I documenti in SFERA sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.