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Ta(CNDipp) 6 : An Isocyanide Analogue of Hexacarbonyltantalum(0)
Author(s) -
Chakarawet Khetpakorn,
DavisGilbert Zachary W.,
Harstad Stephanie R.,
Young Victor G.,
Long Jeffrey R.,
Ellis John E.
Publication year - 2017
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201706323
Subject(s) - homoleptic , tantalum , isocyanide , chemistry , disproportionation , metal carbonyl , metal , benzene , photochemistry , ligand (biochemistry) , ruthenium , inorganic chemistry , medicinal chemistry , organic chemistry , catalysis , biochemistry , receptor
Hexakis(2,6‐diisopropylphenylisocyanide)tantalum is the first isocyanide analogue of the highly unstable Ta(CO) 6 and represents the only well‐defined zerovalent tantalum complex to be prepared by conventional laboratory methods. Two prior examples of homoleptic Ta 0 complexes are known, Ta(benzene) 2 and Ta(dmpe) 3 , dmpe=1,2‐bis(dimethylphosphano)ethane, but these have only been accessed via ligand co‐condensation with tantalum vapor in a sophisticated metal‐atom reactor. Consistent with its 17‐electron nature, Ta(CNDipp) 6 undergoes facile one‐electron oxidation, reduction, or disproportionation reactions. In this sense, it qualitatively resembles V(CO) 6 , the only paramagnetic homoleptic metal carbonyl isolable under ambient conditions.