Naslov
Synthesis and Characterization of Octamolybdates containing Co-ordinatively Bound Salicylideneiminato and Methioninato (MetO) Ligands. Crystal Structures of [NH3]2[Mo8O22(OH)4(OC6H4CH=NPr-2)2].6MeOH and [HMorph]4[Mo8O24(OH)2(MetO)2].4H2O (morph=morpholine) ;

Autori
Kamenar, Boris ; Korpar-Čolig, Branka ; Penavić, Maja ; Cindrić, Marina

Izvornik
Journal Chememical Society Dalton Transactions (1477-9226) (1990), 4; 1125-1130

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, stručni

Ključne riječi
polyoxomolybdates; amino acid; crystal structure

Sažetak
The compound [MoO2(sal)2](Hsal = salicylaldehyde) reacts with n-propylamine in methanol to give [NH3Pr]2[Mo8O22(OH)4(OC6H4CH[double bond, length half m-dash]NPr-2)2]·6MeOH (1). The same complex was obtained by the reaction of ammonium paramolybdate with N-propylsalicylideneimine. The structure determined by X-ray analysis showed that the octamolybdate anion consists of eight condensed octahedra with 16 terminal positions, two of which are occupied by the salicylideneiminato ligands. The reaction of MoO2Cl2 with methionine yields the neutral complex [Mo8O20(OH)4(MetO)4]·solvent (2)(solvent = H2O or MeOH, MetO = methioninate). If the methanolic solution of (2) is neutralized with morpholine (morph) the anionic complex [Hmorph]4[Mo8O24(OH)2(MetO)2]·4H2O (3) is obtained. It has been shown by X-ray analysis that the structure of (3) is analogous to that of (1) with two MetO ligands linked to two terminal sites of the Mo8O26 core.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA