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Benzo[c]thiophene Chromophores Linked to Cationic Fe and Ru Derivatives for NLO...
Silva, Tiago J. L.; Mendes, Paulo J.; Garcia, M. Helena; Robalo, M. Paula; Prates Ramalho, J. P.; Palace Carvalho, A. J.; Büchert, Marinaη5-Monocyclopentadienyliron(II)/ruthenium(II) complexes of the general formula [M(η5-C5H5)(PP)(L1)][PF6] {M = Fe, PP = dppe; M = Ru, PP = dppe or 2PPh3; L1 = 5-[3-(thiophen-2-yl)- benzo[c]thiophenyl]thiophene-2-carbonitrile} have been synthesized and studied to evaluate their molecular quadratic hyperpolarizabilities. The compounds were fully characterized by NMR, FTIR and UV/Vis spectroscopy and their Introduc...
A supramolecular zigzag chain of organometallic dipoles mediated by PF6 2- anions
Duarte, M. Teresa; Piedade, M. Fátima M.; Robalo, M. Paula; Teixeira, António P. S.; Garcia, M. HelenaComplex Fe( 5-cyclopentadienyl)(PMe3)[P(OPh)3](4–NCC6H4NO2) [PF6] has been characterized by spectroscopic and X-ray diffraction in order to evaluate the tuning of the electron density at the metal center and the extension ofthe delocalization on the molecule due to the presence of phosphite and phosphine co-ligands. The compound crystallizes in the centrosymmetric space group P21/c which destroys the possibil...
Synthesis of new donor/acceptor 5-cyclopentadienyl and 5-indenyliron(II) comp...
Garcia, M. Helena; Robalo, M. Paula; Teixeira, António P. S.; Dias, A. R.; Piedade, M. Fátima M.; Duarte, M. TeresaNew complexes of the type [Fe( 5-Cp or Ind)(L)(L )(p-NCR)][BF4] (L, L =CO, P(OC6H5)3, P(C6H5)3; R=C6H4N(CH3)2, C6H4NO2, (E)-C(H) C(H)C6H4NO2, (E)-C(H) C(H)C6H4N(CH3)2) have been synthesised and characterised. Spectroscopic data were analysed in order to evaluate the tuning of the electronic density at the metal centre and the extension of the -delocalisation on the molecule, due to the presence of coligands w...
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