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Synthesis and structural characterisation of the oxo-rhenium(V) complexes with spirophosphorane derived bidentate ligand (P~O-). Crystal structure of trans-ReOCl2[OCMe2CMe2OP(OCMe2CMe2O)](PPh3).
Autorzy
Rok wydania
2000
Czasopismo
Numer woluminu
19
Strony
2667-2672
DOI
10.1016/S0277-5387(00)00582-9
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
The reactions of ReO(OEt)Cl2L2, L=py, PPh3 or ReOCl3(Me2S)(OPPh3), with spirohydrophosphorane HP(OCMe2CMe2O)2 – abbreviated here as HP∼O – in toluene yield ReOCl2(P∼O)L complexes, L=py (1), PPh3 (2) and OPPh3 (3), respectively. The encountered bidentate phosphite pinacolato (OCMe2CMe2O)POCMe2CMe2O− ligand (P∼O−) is afforded by means of a spirophosphorane ring-opening reaction. All the pink–violet compounds 1–3 were characterised by NMR, IR and UV–Vis spectroscopies. The structure of trans-ReOCl2(P∼O)PPh3 (2) was determined crystallographically. The rhenium atom adopts distorted octahedral geometry with a trans multiply bonded terminal oxo ligand (Re–Ot=1.698(2) Å) trans to pinacolate oxygen (Re–O=1.880(2) Å). Two phosphorus atoms as well as two chlorides are mutually in a trans arrangement.
Słowa kluczowe
Spirophosphorane ring-opening, Phosphite diolato(1−) ligand, Crystal structures
Adres publiczny
https://doi.org/10.1016/S0277-5387(00)00582-9
Strona internetowa wydawcy
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