Synthesis and structural characterization of a new layered chlorozincophosphate, Zn(HPO4)Cl·[H3N(CH2)6NH3]0.5
2004; Elsevier BV; Volume: 39; Issue: 4-5 Linguagem: Inglês
10.1016/j.materresbull.2003.12.016
ISSN1873-4227
AutoresAli Rayes, Chérif Ben Nasr, M. Rzaigui,
Tópico(s)Polyoxometalates: Synthesis and Applications
ResumoA new layered zinc-phosphate Zn(HPO4)Cl·[H3N(CH2)6NH3]0.5 was synthesized in acidic conditions at room temperature. It crystallizes in monoclinic space group C2/c (No. 15) with the lattice parameters a=21.826(3) Å, b=9.452(7) Å, c=8.780(1) Å, β=109.36(8)°, V=1708.83(1) Å3, Z=8, R=0.036, Rw=0.047. The structure of this compound is determined by X-ray diffraction and characterized with IR, TGA-DTA/DSC and NMR. The structure consists of inorganic layers, built by PO4 and ZnO3Cl tetrahedra interconnected by common oxygen atoms. The organic entities, located between these layers, perform the 3D cohesion through NH···O or NH···Cl hydrogen bonds.
Referência(s)