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Inne
New manganese(II) complexes with tetraorganodichalcogenoimidodiphosphinato ligands. Crystal and molecular structure of monomeric Mn[(SPMe2)(SPPh2)N]2 and dimeric [Mn{(OPPh2){OP(OEt)2}N}2(H2O)]2.
Autorzy
Rok wydania
2008
Czasopismo
Numer woluminu
27
Strony
2905-2910
DOI
10.1016/j.poly.2008.06.023
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
New manganese(II) complexes of type [X, Y = S, R = Me, R′ = Ph (1), X = S, Y = O, R = Ph, R′ = OEt (2)] and Mn[(OPPh2){OP(OEt)2}N]2(H2O) (3), were obtained by salt metathesis reactions between MnCl2 · 4H2O and the potassium salts of the appropriate tetraorganodichalcogenoimidodiphosphinic acids. The complexes were characterized by EPR and IR spectroscopy, as well as by mass spectrometry. The crystal and molecular structures for 1 and 3 were determined by single-crystal X-ray diffraction. Compound 1 crystallizes as monomeric species, with the manganese(II) atom in a tetrahedral environment, while for compound 3 a dimeric structure was found. Both tetraorganodichalcogenoimidodiphosphinato ligand units behave monometallic biconnective in 1, chelating the metal centre. In the dimeric species 3 the tetraphenylimidodiphosphinato ligand units behave different, two of them chelating the manganese atoms, as monometallic biconnective moieties, while the other two act bimetallic triconnective, bridging the two metal centres. The octahedral coordination geometry in 3 is completed by water molecules. The magnetic behaviour of 3 was investigated.
Słowa kluczowe
Manganese(II) complexes, Molecular structure, Magnetic properties
Adres publiczny
https://doi.org/10.1016/j.poly.2008.06.023
Strona internetowa wydawcy
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