http://www.cnr.it/ontology/cnr/individuo/prodotto/ID40307
Chemical implantation of Group 4 cations on silica via cyclopentadienyl-and N,N-dialkylcarbamato derivatives (Articolo in rivista)
- Type
- Label
- Chemical implantation of Group 4 cations on silica via cyclopentadienyl-and N,N-dialkylcarbamato derivatives (Articolo in rivista) (literal)
- Anno
- 2010-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1016/j.ica.2009.10.004 (literal)
- Alternative label
Calucci, Lucia; Forte, Claudia; Pampaloni, Guido; Pinzino, Calogero; Renili, Filippo (2010)
Chemical implantation of Group 4 cations on silica via cyclopentadienyl-and N,N-dialkylcarbamato derivatives
in Inorganica Chimica Acta (Testo stamp.)
(literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- Calucci, Lucia; Forte, Claudia; Pampaloni, Guido; Pinzino, Calogero; Renili, Filippo (literal)
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- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- CNR Consiglio Nazionale delle Ricerche, Istituto di Chimica dei Composti OrganoMetallici, Area della Ricerca di Pisa, I-56124 Pisa, Italy
Università di Pisa, Dipartimento di Chimica e Chimica Industriale, I-56126 Pisa, Italy (literal)
- Titolo
- Chemical implantation of Group 4 cations on silica via cyclopentadienyl-and N,N-dialkylcarbamato derivatives (literal)
- Abstract
- Chemical implantation of Group 4 cations [Ti(III), Ti(IV), Zr(IV), Hf(IV)] has been carried out under mild conditions by the reaction of polycyclopentadienyl- (MCp(n); M = Ti, n = 3, 4; M = Zr, Hf, n = 4), mixed cyclopentadienyl/N,N-dialkylcarbamato (ML(x)(O(2)CNEt(2))(y); M = Ti, L = Cp, C(5)Me(5) (Cp*), x = 2, y = 1; M = Hf, L = Cp, x = 1, y = 3), and N,N-dialkylcarbamato (M(O(2)CNR(2))(n), M = Ti, n = 3, R = (i)Pr; M = Ti, Hf, n = 4, R = Et; M = Zr, n = 4, R = iPr) derivatives, with the silanol groups of amorphous silica. Cyclopentadiene/pentamethylcyclopentadiene and/or carbon dioxide and the secondary amine are released in the process. The amount of implanted cations depends on the metal and on the ligands, the pentamethylcyclopentadienyl complex being less reactive than the unsubstituted congener. The starting complexes and the final products have been characterized by EPR or by (13)C CP-MAS NMR spectroscopy. (literal)
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