dc.contributor.author | Castro Gausinet, Irene de | |
dc.contributor.author | Galakhov, Mikhail V. | |
dc.contributor.author | Gómez Rubio, Manuel | |
dc.contributor.author | Gómez Sal, Pilar | |
dc.contributor.author | Martín Alonso, Avelino | |
dc.contributor.author | Royo Gracia, Pascual | |
dc.date.accessioned | 2009-11-03T12:08:22Z | |
dc.date.available | 2009-11-03T12:08:22Z | |
dc.date.issued | 1996 | |
dc.identifier.bibliographicCitation | Journal of Organometallic Chemistry, 1996, v. 514, n. 1-2, p. 51-58 | en |
dc.identifier.issn | 0022-328X | |
dc.identifier.uri | http://hdl.handle.net/10017/4554 | |
dc.description.abstract | Reaction of TaCp" C! 4 with MOR (M - Li, Na) in different molar ratios gives halo alkoxides TaCp" CI,(OR)4_,, (n - 3: R -tBu 1;
$iPh 3 2; 2,6-Me2C6H 3 3; n -- 2: R -~Bu 4; SiPh 3 5; 2,6-Me2C6H3 6; a - !: R - SiMe 3 7) in good yields. The alkylidene complex
TaCp'(CH2SiMe,02(CHSiMe ~) is hydrolyzed in the presence of traces of water to give the oxo dialkyl derivative
[TaCp'(CH2SiM¢3)~O],, 8, and reacts with I equivalent of 2,6-MezC6H~NC affording a new 'q2-iminoacyi compound
TaCp" (CH 2$iMe3XCHSiMe3){~ 2"C(CH 2SiMe3 ) = N(2,6"MeaC6 H 3)} 9. Reactions of TaCp "(CH 2SiMe3)a(CHSiMe3 ) with I equivalent
of C6HsOH and 4-MeC6H3(OH) 2 result in the formation of the alkyl phenoxo TaCp'(CH2SiMe3)3(OC6Hs) 10 and 4-methyl
pyrocatecholate TaCp'(CH2SiMe~)2(O2C6H3Me) 11, whereas the related re,",,:don with 2,6-Me2C6H 3OH leads to the cyclic alkyi-aikoxo
compound TaCp (CH2SiMej)2(~2-O(2-CH2-6-MeC6H3)) 12. All the complexes were characterized by IR and NMR (tH and
13C) spectroscopy. The crystal and molecular structure of 12 has been determine~i. C~ystals of 12 are triclinic, space group P'[ with Z - 2
in a unit cell of dimensions a- 9.151(5) ~, b- 11.835(5) ~,, c- 14.045(4) A, a- 89.35(3) °, /3- 72.34(3) 0 and 'y-88.51(4) °,
V- 1449(I) ~s. Final values of R -0.025 and Rw -0.0655 were obtained from 554'7 reflections measured (50'70, > 2o'(i)). | en |
dc.format.mimetype | application/pdf | en |
dc.language.iso | eng | en |
dc.publisher | Elsevier | en |
dc.rights | (c) Elsevier, 1996 | en |
dc.subject | Tantalum | en |
dc.subject | Pentamethylcyclopentadienyl derivatives | en |
dc.subject | Halo alkoxides | en |
dc.subject | Alkyl phenoxides | en |
dc.subject | Alkyl alkylidene imino acyl | en |
dc.title | Pentamethylcyclopentadienyl halo- and alkyl-alkoxo tantalum(V) complexes. Crystal structure of TaCp*(CH2SiMe3) 2{η2-O(2-CH2-6-MeC6H3)} | en |
dc.type | info:eu-repo/semantics/article | en |
dc.subject.eciencia | Ciencia | es_ES |
dc.subject.eciencia | Química inorgánica | es_ES |
dc.subject.eciencia | Science | en |
dc.subject.eciencia | Chemistry, inorganic | en |
dc.contributor.affiliation | Universidad de Alcalá. Departamento de Química Inorgánica | |
dc.relation.publisherversion | http://dx.doi.org/10.1016/0022-328X(95)06004-G | |
dc.type.version | info:eu-repo/semantics/publishedVersion | en |
dc.identifier.doi | 10.1016/0022-328X(95)06004-G | |
dc.relation.projectID | PB-92-0178-C (Ministerio de Educación y Cultura) | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | en |