Metal Derivatives of Organo-Phosphorus Compounds. Part II: Niobium(V) and Tantalum(V) Derivatives
| Main Authors: | D. M. PURl, SORAN SINGH |
|---|---|
| Format: | Article Journal |
| Bahasa: | eng |
| Terbitan: |
, 1981
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| Subjects: | |
| Online Access: |
https://zenodo.org/record/6349161 |
Daftar Isi:
- Department of Chemistry, Kurukshetra University, Kurukshetra-132 119, Haryana Manuscript received 26 March 1980, revised 1 November 1980. accepted 28 January 1981 Reactions between niobium(V) chloride, tantalum(V) chloride and dialkyl/diaryl (Et-, Pri-, Buη- and Ph-) phosphites have been studied in different molar ratios and under different conditions of temperature and solvent systems. The complex compounds of the type MCI3 [P(O) (OR)2)2 , (I); MCI2 [OP(O)(OR)] [P(O)(OR)2], (II) ; MCI[OP(O)(OR)]2 (III) ; MCI2[P(O)(OR)2]3 , (IV) ; MCI[OP(O)(OR)][P(O)(OR)2]2, (V) ; M[OP(O)(OR)]2[P(O)(OR)2], (VI) ; MCI[P(O)(OR)2]4, (VII) ; M[OP(O)(OR)] [OP(O)(OR)2]2, (VIII) and M [P(OR)2]5, (IX) (M=Nb or Ta and R=Et-, Pri-, Buη- or Ph-) have been isolated. They have been characterised on the basis of infrared spectral measurements, elemental analyses and magnetic susceptibility data. The polymeric nature of the products has been indicated by their molecular weights. The coordination of phosphite units to metal atom of the other molecule through phosphoryl oxygen gave rise to-O-P-O-bridges