authors |
Gomes, AC; Gamelas, CA; Fernandes, JA; Paz, FAA; Nunes, P; Pillinger, M; Goncalves, IS; Romao, CC; Abrantes, M |
nationality |
International |
journal |
EUROPEAN JOURNAL OF INORGANIC CHEMISTRY |
author keywords |
Indenyl ligands; Molybdenum; Coordination modes; Oxido ligands; Phosphoesters; Hydrolysis |
keywords |
ALPHA-PINENE OXIDE; ORGANOMETALLIC COMPLEX; MICELLAR-SOLUTION; INDENYL ANALOGS; RING SLIPPAGE; MIXED-RING; MOLYBDENUM; DERIVATIVES; CLEAVAGE; CATALYST |
abstract |
The dissolution of the indenyl (Ind) complex [{(eta(5)-Ind)Mo(CO)(2)(mu-Cl)}(2)] (1) in N,N'-dimethylformamide (DMF) gives the ring-slipped complex [(eta(3)-Ind)Mo(CO)(2)Cl(DMF)(2)] (2). The aerial oxidation of 2 leads to the formation of the dinuclear oxomolybdenum(V) chloride [Mo2O2(DMF)(4)(mu-O)(2)Cl-2] (3). The structures of 2 and 3 DMF have been determined by single-crystal X-ray diffraction. Compounds 1 and 3 were examined as promoters of phosphoester bond hydrolysis in para-nitrophenylphosphate (pNPP), which was used as a model substrate. The reactions were performed in aqueous solution at 55 degrees C and followed by H-1 NMR spectroscopy. For assays performed with 30-100 mol-% of 1 or 3 relative to pNPP, both compounds promote the production of para-nitrophenol (pNPh) from pNPP. Compound 3 is especially active in promoting the hydrolytic cleavage of the phosphoester bond (t(1/2) < 80 min). |
publisher |
WILEY-V C H VERLAG GMBH |
issn |
1434-1948 |
year published |
2014 |
issue |
23 |
beginning page |
3681 |
ending page |
3689 |
digital object identifier (doi) |
10.1002/ejic.201402071 |
web of science category |
Chemistry, Inorganic & Nuclear |
subject category |
Chemistry |
unique article identifier |
WOS:000340564700008
|