Title of article :
Hydrothermal synthesis, structural characterisation and magnetic behaviour of (4,4′-bpyH)2[M(4,4′-bpy)(H2O)4][V2O2(pmida)2] · 2H2O (M = Mn2+ and Co2+)
Author/Authors :
Fa-Nian Shi، نويسنده , , Filipe A. Almeida Paz، نويسنده , , Penka I. Girginova، نويسنده , , V?tor S. Amaral، نويسنده , , Joao Rocha، نويسنده , , Jacek Klinowski، نويسنده , , Tito Trindade، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2006
Pages :
12
From page :
1147
To page :
1158
Abstract :
Two new structures containing N -(phosphonomethyl)iminodiacetate residues (pmida4−) and 4,4′-bipyridine, (4,4′-bpyH)2[M(4,4′- bpy)(H2O)4][V2O2(pmida)2] · 2H2O (where M = Mn2+ or Co2+), have been synthesised using hydrothermal methods and characterised structurally by single-crystal and powder X-ray diffraction, elemental analysis, infrared spectroscopy and thermal analysis. The magnetic behaviour of these two materials is also described. The compounds are formed by close packing (mediated by electrostatic interactions) of one-dimensional View the MathML source[M(4,4′-bpy)(H2O)4]n2n+ cationic polymers and 4,4′-bpyH+ cations, along with dimeric centrosymmetric [V2O2(pmida)2]4− anionic moieties. Hydrogen-bonded sub-network formed by highly directional and very strong homonuclear O–H⋯O and heteronuclear N+–H⋯O interactions interconnects these moieties into a three-dimensional framework. Systematic surveys of the Cambridge Structural Database were performed to collect information on the distribution of bond distances (Mn–N, Mn–Owater, Co–N, Co–Owater, V–N, V–Ocarboxylate and Vdouble bond; length as m-dashO), and to characterise the local coordination environments of Mn2+, Co2+ and V4+.
Keywords :
cobalt complexes , Manganese complexes , Coordination polymer , N-(phosphonomethyl)iminodiacetic acid , Magnetic properties
Journal title :
INORGANICA CHIMICA ACTA
Serial Year :
2006
Journal title :
INORGANICA CHIMICA ACTA
Record number :
1323400
Link To Document :
بازگشت