Browsing by Author "e8382e34-713c-4035-82d7-bd982384586d"
Now showing items 1-12 of 12
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Díaz Valenzuela, Carlos; Valenzuela, María Luisa; Barbosa, Miguel (2004)Incorporation of the organometallic fragments MLn = CpFe(dppe)I and CpRu(PPh3)2Cl to the random copolymers [{NP(O 2C12H8)}0.8{NP(OC6H 4CH2CN)2}0.15{NP(OC 6H4CH2CN)(OC6H5)} 0.05]n (1) [{NP(O2C12H 8)}0.55{NP(OC6H4CH ...
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Cisternas, Regina; Ballesteros, Luis; Valenzuela, María Luisa; Kahlert, Heike; Scholz, Fritz (Elsevier, 2017)A considerable improvement of time constants of tungsten bronze pH sensors was achieved by decreasing the crystal size of the tungsten bronze previously reported by the authors. Experiments have been performed on the basis ...
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Carriedo, Gabino A.; Alonso, Francisco J.García; Díaz Valenzuela, Carlos; Valenzuela, María Luisa (2005)The phosphazene polymers carrying phenoxycarboxylic acids {[NP(O-C 6H 4-CO 2H) 2] x[NP-(O 2C 12H 8)] 1-x} n [x = 0.2 (1a), 0.35 (1b), 0.5 (1c), 0.7 (1d), 0.85 (1e), x = 1(2)] and the chiral analogues {[NP(O-C 6H 4-CO 2H) ...
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Díaz Valenzuela, Carlos; Valenzuela, María Luisa (2007)
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Díaz Valenzuela, Carlos; Valenzuela, María Luisa; Yutronic Sáez, Nicolás; Aguirre Álvarez, Pedro (Chilean Chemical Society, 2010-09-14)The compounds N3P3[NH(CH2)3Si(OEt)3]6 (1), N3P3[NH(CH2)3Si(OEt)3]3[NCH3(CH2)3CN]3 (2) and N3P3[NH(CH2)3Si(OEt)3]3 [HOC6H4(CH2)CN]3 (3) undergo slow gelation at the interface oil/air at low temperatures to give perfect ...
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Jiménez, Josefina; Laguna, Antonio; Benouazzane, Mohamed; Sanz, Jose Antonio; Díaz Valenzuela, Carlos; Valenzuela, María Luisa; Jones, Peter G. (2009)A cyclotriphosphazene bearing two 4-oxypyridine groups on the same phosphorus atom, gem-[N3P3(O2C 12H8)2(OC5H4N-4) 2] (I), and its analogous polymer [[NP-(O2C 12H4)UNP(OC5H4NM)2) 0.3]n (II), have been used to prepare gold ...
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Díaz Valenzuela, Carlos; Valenzuela, María Luisa; Yutronic Sáez, Nicolás; Villalobos, Valeria; Barrera, Gonzalo (2011)Pyrolysis of molecular precursors containing vanadium organometallic and cyclic phosphazene affords mixtures of nanostructured vanadium oxides and pyrophosphates. The products from the molecular precursor [N3P3(OC6H5)5OC ...
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Díaz Valenzuela, Carlos; Carriedo, Gabino A.; Valenzuela, María Luisa; Zúñiga, Luis; O'Dwyer, Colm (2012)The pyrolysis of several physical mixtures of AuCl(PPh 3) with polymeric [NP(O 2C 12H 8)] n or cyclic N 3P 3(O 2C 12H 8) 3 phosphazenes, formed as solid powders or films with different molar ratios, have been studied under ...
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Polyphosphazenes as solid templates for the formation of monometallic and bimetallic nanostructures Díaz Valenzuela, Carlos; Valenzuela, María Luisa; Yutronic Sáez, Nicolás (2007)A simple synthetic route to monometallic and bimetallic nanostructured materials is presented. Pyrolysis of the organometallic iron co-polyphosphazenes, [{[N = P(R 1) 2] 0.8[N = P(OC 6H 4CH 2CN[Fe]) 2] 0.15}{PF 6} 0.32] n ...
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Carriedo, Gabino A.; Fidalgo, José I.; Alonso, F. J.García; Soto, A. Presa; Díaz Valenzuela, Carlos; Valenzuela, María Luisa (2004)The reaction of [NPCl2]n first with 2,2′-dihydroxybiphenyl and K2CO3 or (R)-(+)-2,2′-dihydroxy-1,1′-binaphthyl and Cs2CO 3, and subsequently with HO-C6H4-CO 2Prn and Cs2CO3, gave the phosphazene copolymers {[NP(O2C12H8)] ...
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Solid state pathways to complex shape evolution and tunable porosity during metallic crystal growth Díaz Valenzuela, Carlos; Carriedo, Gabino A.; Valenzuela, María Luisa; Zúñiga, Luis; O'Dwyer, Colm (Nature Publishing Group, 2013)Growing complex metallic crystals, supported high index facet nanocrystal composites and tunable porosity metals, and exploiting factors that influence shape and morphology is crucial in many exciting developments in ...
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Díaz Valenzuela, Carlos; Valenzuela, María Luisa; Carrillo, Daniel; Riquelme, J.; Díaz, Renato (2012)Organometallic derivatives of the cyclotriphosphazene N 3P 3[OC 6H 4CH 2CN·TiClCp 2] 6(1), N 3P 3(O 6H 5) 5[OC 6H 4N·W(CO) 5] (2), N 3P 3[OC 6H 4CH 2CN·Mo(CO) 5] 6(3), [N 3P 3(O 6H 5) 5(OC 5H 4N·CpRu(PPh 3) 2)][PF 6] (4), ...