| Conţinutul numărului revistei |
| Articolul precedent |
| Articolul urmator |
 |
 114 0 |
 SM ISO690:2012GHEORGHE, Ruxandra, COSTES, Jean-Pierre, SHOVA, Sergiu, ANDRUH, Marius. Unexpected replacement of Gd(III) by Hg(II) from an oxygen binding set leading to a heterometallic Cu(II)-Hg(II) 1-D coordination polymer. In: Revue Roumaine de Chimie, 2007, vol. 52, pp. 753-758. ISSN 0035-3930. |
| EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
  Revue Roumaine de Chimie |
||||||
| Volumul 52 / 2007 / ISSN 0035-3930 | ||||||
|
||||||
| Pag. 753-758 | ||||||
|
||||||
 Descarcă PDF |
||||||
| Rezumat | ||||||
The reaction between [LCuLn(NO3)3] and K 2[Hg(SCN)4] in a 1:1 molar ratio led to a new heterobimetallic system, I ∞[LCuIIHg II(SCN)2] 1, resulting from the unexpected replacement of Gd(III) by Hg(II) in the second compartment of the organic ligand (L is the dianion of the Schiff-base obtained by 2:1 condensation of 3- methoxysalycilaldehyde and 1,3-propanediamine). Compound 1 was also obtained directly, by reacting the neutral mononuclear complex [LCu] with mercury(II) acetate, in the presence of potassium thiocyanate The crystallographic investigation of 1 reveals an alternating chain-like structure, made of dinuclear [LCuIIHgII] units linked by thiocyanate bridges. The copper(II) ions are pentacoordinated, with a square pyramidal geometry, the apical position being occupied by the nitrogen atom of the NCS bridge. The mercury(II) ions display a strongly distorted (4 + 2) octahedral geometry. The distance between the phenoxo-bridged metal ions is 3.491(15) Å. The Cu···Hg distance across the NCS- bridge is equal to 6.480(6) Å. |
||||||
| Cuvinte-cheie coordination polymers, Mixed metal Gd(III)/Hg(II) complexes, Thiocyanato bridges |
||||||
|
|
|
|
