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Effect of the substitution on the protonation of allyl cyclopentadienyl molybdenum(II) compounds
Year: 2012
Type of publication: článek v odborném periodiku
Name of source: Organometallics
Publisher name: American Chemical Society
Place: Washington
Page from-to: 2193-2202
Titles:
Language Name Abstract Keywords
cze Efekt substituce na protonaci allyl cyklopentadienylovych sloučenin molybdenum Příprava, charakterizace, a reaktivita nových allyl cyklopentadienyloných sloučenin molybdenu [eta(3)-C3H4R1)(eta(5)-C5H3(R-2)(2))Mo(CO)(2)] (R-1 = H, COOMe; R-2 = COOMe, (CONHBu)-Bu-t) byla popsána. Přestože se jedná o s trukturní analogy [eta(3)-C3H5)(eta(5)-Cp)Mo-(CO)(2)], je jejich reaktivity odlišná. Zatímco [(eta(3)-C3H5)(eta(5)-CP)Mo(CO)(2)] poskytuje kationtový cyklopentadienylový komplex, zde publikované sloučeniny poskytují kationtové allylové komplexy [(eta(3)-C3H4R)Mo(CO)(2)(NCMe)(3)][BF4] (R = H, COOMe) or stable cationic ally! cyclopentadienyl complexes. organokovová chemie; metallocenové komplexy
eng Effect of the substitution on the protonation of allyl cyclopentadienyl molybdenum(II) compounds Synthesis, characterization, and reactivity of new allyl cyclopentadienyl molybdenum(II) compounds [eta(3)-C3H4R1)(eta(5)-C5H3(R-2)(2))Mo(CO)(2)] (R-1 = H, COOMe; R-2 = COOMe, (CONHBu)-Bu-t) are reported. Although these compounds are structural analogues of [eta(3)-C3H5)(eta(5)-Cp)Mo-(CO)(2)], their reactivity is very different. While protonation of [(eta(3)-C3H5)(eta(5)-CP)Mo(CO)(2)] gives a cationic cyclopentadienyl complex, the presented compounds give cationic ally! complexes [(eta(3)-C3H4R)Mo(CO)(2)(NCMe)(3)][BF4] (R = H, COOMe) or stable cationic ally! cyclopentadienyl complexes. The theoretical calculations have shown that this behavior is a result of high affinity of the functional groups in the cyclopentadienyl ligand toward protonation. effective core potentials; molecular-orbital methods; Gaussian-type basis; Tungsten complexes; aqueous-solutions; mixed-ring; organometallic chemistry; coordination chemistry; molybdocene dichloride; polarization functions

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