Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Leonel C. Silva"'
Publikováno v:
Colorants, Vol 2, Iss 4, Pp 601-617 (2023)
This work provides significant insight into the molecular structure of alizarin lake pigments used by artists in the past. To characterize two red powders, lakes 1 and 2, obtained by complexation of 1,2-dihydroxy anthraquinone (alizarin) with Al3+, a
Externí odkaz:
https://doaj.org/article/835b697db83d44edbf021a819f424a4f
Autor:
Clara S. B. Gomes, Pedro T. Gomes, M. Carmen Puerta, Pedro Valerga, Manuel Jiménez-Tenorio, Sandra I. Costa, Leonel C. Silva
Publikováno v:
European Journal of Inorganic Chemistry. 2018:597-607
Autor:
Maria Teresa Duarte, Leonel C. Silva, Sofia I. Pascu, Luis F. Veiros, Sónia Namorado, Pedro T. Gomes, Sónia A. C. Carabineiro, Laura C. J. Pereira, R.T. Henriques
Publikováno v:
Inorganic Chemistry. 46:6880-6890
A series of 2-iminopyrrole ligand precursors with increasing bulkiness [HNC4H3C(R)=N-2,6-R'2C6H3] (R = R' = H, 1a; R = Me, R'= H, 1b; R = H, R' = Me, 1c; R = R' = Me, 1d; R = H, R' = iPr, 1e; R = Me, R' = iPr, 1f) were synthesized and deprotonated wi
Autor:
Paramasivam Krishnamoorthy, M. Carmen Puerta, Clara S. B. Gomes, Leonel C. Silva, Pedro Valerga, Sandra I. Costa, Pedro T. Gomes, Manuel Jiménez-Tenorio
Publikováno v:
Dalton Trans., 2015, 44, 17015
New indenyl nickel(II) complexes bearing arsine or stibine ligands synthesised by a new methodology exhibit very high catalytic activities for the oligomerisation of styrene.
Autor:
and José R. Ascenso, Sofia I. Pascu, Alberto R. Dias, Sónia Namorado, Leonel C. Silva, Luis F. Veiros, Pedro T. Gomes, M. Teresa Duarte
Publikováno v:
Organometallics. 25:4391-4403
Neutral allylnickel complexes of the general formula [Ni(η3-C3H5)(Im)Br] (where Im = 1,3-di-tert-butylimidazol-2-ylidene (tBu2Im), 1,3,4,5-tetramethylimidazol-2-ylidene (Me4Im), 1,3-dimethylimidazol-2-ylidine (Me2Im)) were prepared from the reaction
Autor:
João M. Campos, James C. W. Chien, Pedro Valerga, Leonel C. Silva, Jian-Chao Yuan, Maria M. Marques, Pedro T. Gomes, M. Rosário Ribeiro
Publikováno v:
Polymer. 46:2122-2132
A new siloxy-substituted α-diimine compound and its corresponding Ni(II) complex, {bis[N,N′-(4-tert-butyl-diphenylsiloxy-2,6-dimethylphenyl)imino]acenaphthene}dibromonickel (6), were successfully synthesized and the molecular structure of 6 charac
Autor:
Isabel Salcedo, Sandra I. Costa, Manuel Jimenez-Tenorio, Leonel C. Silva, Pedro T. Gomes, Pedro Valerga, M. Carmen Puerta
Publikováno v:
Organometallics. 23:3139-3146
The cationic complexes [Ni(η3-CH2C(R)CH2)(P)2][BPh4] (R = Me, H; (P)2 = (PMeiPr2)2, (PPhiPr2)2, 1,2-bis(diisopropylphosphino)ethane (dippe)) and [Ni(η-2-MeInd)(P)2][BPh4] (2-MeInd = 2-methylindenyl; (P)2 = (PMeiPr2)2, (PPhiPr2)2, dippe) have been p
Autor:
José R. Ascenso, Sandra I. Costa, Leonel C. Silva, Susete N. Fernandes, Pedro T. Gomes, Maria M. Marques, James C. W. Chien
Publikováno v:
Polymer International. 54:249-255
The nickel precursor [bis(N,N′-dimesitylimino)acenaphthene]dibromonickel and methylaluminoxane were used to catalyse the functionalisation of 1-hexene with acrylamide by passivation of acrylamide with tri-isobutylaluminium. The polymer obtained was
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 67:C79-C80
Autor:
Leonel C. Silva, Pedro T. Gomes, Sónia Namorado, Sofia I. Pascu, Luis F. Veiros, Maria Teresa Duarte
Publikováno v:
Acta Crystallographica Section A Foundations of Crystallography. 62:s223-s223