A1 Vertaisarvioitu alkuperäisartikkeli tieteellisessä lehdessä

Imidotungsten(VI) complexes with chelating amino and imino phenolates




TekijätHanninen MM, Sillanpaa R, Kivela H, Lehtonen A

KustantajaROYAL SOC CHEMISTRY

Julkaisuvuosi2011

JournalDalton Transactions

Tietokannassa oleva lehden nimiDALTON TRANSACTIONS

Lehden akronyymiDALTON T

Numero sarjassa12

Vuosikerta40

Numero12

Aloitussivu2868

Lopetussivu2874

Sivujen määrä7

ISSN1477-9226

DOIhttps://doi.org/10.1039/c0dt01438a

Rinnakkaistallenteen osoitehttps://research.utu.fi/converis/portal/Publication/1697996


Tiivistelmä
The reaction of WOCl(4) with 2,4-di-tert-butyl-6-((isopropylamino)methyl)phenol followed by the reaction with phenyl isocyanate leads to the formation of imidotungsten(VI) complex [W(NPh)Cl(3)(OC(6)H(3)(CH(2)NH-i-Pr)-2-t-Bu(2)-4,6)] 4 with a chelating aminophenolate ligand. When the same procedure was applied using aminophenols with bulkier substituents in the amino group, the final product was an unexpected Schiff-base complex [W(NPh)Cl(3)(OC(6)H(3)(CH = NPh)-2-t-Bu(2)-4,6)] 5, where the ligand is derived from 2,4-di-tert-butyl-6-((phenylimino)methyl)phenol. Complex 5 is also formed in the thermal degradation of 4. On the whole, 5 appears to be formed by a disproportionation of intermediate compounds, which are analogous to complex 4. The solid-state structures of 4 and 5 have been determined by X-ray crystallography whereas the solution structures were studied by (1)H and (13)C NMR.

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