Articolul precedent |
Articolul urmator |
743 4 |
Ultima descărcare din IBN: 2022-04-05 14:48 |
SM ISO690:2012 GUSINA, Liudmila, DRAGANCEA, Diana, BOUROSH, Pavlina, KRAVTSOV, Victor, BULHAK, Ion. Binuclear manganese(III) complex with izonicotinoylhydrazone of salicylic aldehyde: synthesis and crystal structure. In: The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova, 28-30 mai 2014, Chișinău. Chișinău, Republica Moldova: Institutul de Chimie al AȘM, 2014, p. 80. |
EXPORT metadate: Google Scholar Crossref CERIF DataCite Dublin Core |
The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova 2014 | ||||||
Conferința "The International Conference dedicated to the 55th anniversary from the foundation of the Institute of Chemistry of the Academy of Sciences of Moldova" Chișinău, Moldova, 28-30 mai 2014 | ||||||
|
||||||
Pag. 80-80 | ||||||
|
||||||
Descarcă PDF | ||||||
Rezumat | ||||||
Ligand design and the choice of appropriate metal ions are essential for constraction of molecular systems with potential superexchange interaction between metals. Schiff bases derived from condensation of isonicotinoyl hydrazide and aromatic aldehydes may act as versatile chelates towards manganese ion to give discrete mono- and binuclear complexes and polymeric networks [1,2]. In the framework of our research on the coordination ability of izonicotinoylhydrazones of salicylic aldehyde (H2L), we report the synthesis and crystal structure of a new Mn(III) binuclear complex of composition [Mn(μ-OCH3)(L)(CH3OH)]2 , (Fig. 1). Compound crystallizes in the triclinic space group P-1, a=7.783(1), b=9.968(1), c= 10.793(2) Å, α=96.13(1), β=106.54(1), γ=94.81(1)°, V=792.3(2) Å3. In centersymmetric complex the manganese ions are bridged in binuclear entity by two methoxide anions. Each metal ion is coordinated in the equatorial plane by the tridentate ONO twice deprotonated (L)2and one of the bridging methoxide anion, while another bridging methoxide anion and methanol molecule occupy the axial coordination sites. The coordination surrounding of Mn(III) is a square-bipyramid. The Mn···Mn intramolecular separation is 3.158(2) Ǻ. In the crystal binuclear complexes related by translation b are double linked in the chain by O(4)–H…N(1)= 2.752(8) Å hydrogen bonds. |
||||||
|