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Terminal Alkylphosphanylidene Organotantalum(V) Complexes
Author(s) -
Grundmann Anne,
Sárosi Menyhárt B.,
Lönnecke Peter,
Frank René,
HeyHawkins Evamarie
Publication year - 2013
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201300500
Subject(s) - chemistry , isopropyl , tantalum , dissociation (chemistry) , medicinal chemistry , paramagnetism , stereochemistry , organic chemistry , physics , quantum mechanics
The first terminal organometallic alkylphosphanylidenetantalum(V) complexes [Cp*Ta{1,2‐(NSiMe 3 ) 2 C 6 H 4 }(PR)] were obtained with cyclohexyl ( 2 ) and isopropyl groups ( 3 ) at phosphorus, whereas adamantyl and tert ‐butyl substituents resulted in the formation of the paramagnetic tantalum(IV) complex [Cp*Ta{1,2‐(NSiMe 3 ) 2 C 6 H 4 }Cl] ( 4 ). DFT studies showed that the terminal cyclohexyl and isopropyl phosphanylidene complexes are stable towards dimerization and dissociation.