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Author Alberto Albinati

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Synthesis, Characterization and Biological Activity of Novel Cu(II) Complexes of 6-Methyl-2-Oxo-1,2-Dihydroquinoline-3-Carbaldehyde-4n-Substituted Thiosemicarbazones.

Eswaran Ramachandran, Valentina Gandin, Roberta Bertani, Paolo Sgarbossa, Karuppannan Natarajan, Nattamai S P Bhuvanesh, Alfonso Venzo, Alfonso Zoleo, Mirto Mozzon, Alessandro Dolmella, Alberto Albinati, Carlo Castellano, Nuno Reis Conceição, M Fátima C Guedes da Silva, Cristina Marzano,

Three new 6-methyl-2-oxo-1,2-dihydroquinoline-3-carbaldehyde-thiosemicarbazones-N-4-substituted pro-ligands and their Cu(II) complexes (1, -NH2; 2, -NHMe; 3, -NHEt) have been prepared and characterized. In both the X-ray structures of 1 and 3, two crystallographically independent complex molecules were found that differ either in the nature of weakly metal-binding species (water in 1a and nitrate ... Read more >>

Molecules (Molecules (Basel, Switzerland))
[2020, 25(8):]

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Ab initio accelerated molecular dynamics study of the hydride ligands in the ruthenium complex: Ru(H2)2H2(P(C5H9)3)2.

Marco Lauricella, Letizia Chiodo, Giovanni Ciccotti, Alberto Albinati,

The dihydrogen complex Ru(H2)2H2(P(C5H9)3)2 has been investigated, via ab initio accelerated molecular dynamics, to elucidate the H ligands dynamics and possible reaction paths for H2/H exchange. We have characterized the free energy landscape associated with the H atoms positional exchange around the Ru centre. From the free energy landscape, we ... Read more >>

Phys Chem Chem Phys (Physical chemistry chemical physics : PCCP)
[2019, 21(45):25247-25257]

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Synthesis, characterization and cytotoxic activity of novel copper(II) complexes with aroylhydrazone derivatives of 2-Oxo-1,2-dihydrobenzo[h]quinoline-3-carbaldehyde.

Eswaran Ramachandran, Valentina Gandin, Roberta Bertani, Paolo Sgarbossa, Karuppannan Natarajan, Nattamai S P Bhuvanesh, Alfonso Venzo, Alfonso Zoleo, Antonella Glisenti, Alessandro Dolmella, Alberto Albinati, Cristina Marzano,

Three new 2-oxo-1,2-dihydrobenzo[h]quinoline-3-carbaldehyde terminal substituted aroylhydrazone ligands (2-Oxo-1,2-dihydrobenzo[h]quinoline-3-carbaldehyde(2'-hydroxybenzoyl)hydrazine, H2L1, 1, 2-Oxo-1,2-dihydrobenzo[h]quinoline-3-carbaldehyde(2'-hydroxybenzoyl)hydrazine, H2L2, 2, 2-Oxo-1,2-dihydrobenzo[h]quinoline-3-carbaldehyde(2'-hydroxybenzoyl)hydrazine, H2L3, 3) and the corresponding novel copper(II) complexes [Cu(L)(CH3OH)(NO3)](L = HL1 (4), HL2 (5), HL3 (6-6+), have been synthesized to compare their coordination behaviour and biological activity with respect to the presence of an OH group in different ... Read more >>

J. Inorg. Biochem. (Journal of inorganic biochemistry)
[2018, 182:18-28]

Cited: 2 times

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Anti-Inflammatory, Antioxidant and Crystallographic Studies of N-Palmitoyl-ethanol Amine (PEA) Derivatives.

Carmela Saturnino, Ada Popolo, Anna Ramunno, Simona Adesso, Michela Pecoraro, Maria Rosaria Plutino, Silvia Rizzato, Alberto Albinati, Stefania Marzocco, Marina Sala, Domenico Iacopetta, Maria Stefania Sinicropi,

N-Palmitoyl-ethanolamine (PEA) is an anti-inflammatory component of egg yolk that is usually employed for the prevention of respiratory apparatus virus infection and then frequently used for its efficient anti-inflammatory and analgesic effects in experimental models of visceral, neuropathic, and inflammatory diseases. Nevertheless, data of its use in animal or human ... Read more >>

Molecules (Molecules (Basel, Switzerland))
[2017, 22(4):]

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Nature of Si-H interactions in a series of ruthenium silazane complexes using multinuclear solid-state NMR and neutron diffraction.

Katharine A Smart, Mary Grellier, Yannick Coppel, Laure Vendier, Sax A Mason, Silvia C Capelli, Alberto Albinati, Virginia Montiel-Palma, Miguel A Muñoz-Hernández, Sylviane Sabo-Etienne,

Three new N-heterocyclic-silazane compounds, 1a-c, were prepared and employed as bidentate ligands to ruthenium, resulting in a series of [Ru(H){(κ-Si,N-(SiMe2-N-heterocycle)}3] complexes (3a-c) featuring the same RuSi3H motif. Detailed structural characterization of the RuSi3H complexes with X-ray diffraction, and in the case of triazabicyclo complex [Ru(H){κ-Si,N-(SiMe2)(C7H12N3)}3] (3a), neutron diffraction, enabled a ... Read more >>

Inorg Chem (Inorganic chemistry)
[2014, 53(2):1156-1165]

Cited: 9 times

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An introduction to the special issue on interplay of crystallography, spectroscopy and theoretical methods for solving chemical problems.

Larry R Falvello, Alberto Albinati,

Acta Crystallogr C (Acta crystallographica. Section C, Crystal structure communications)
[2013, 69(Pt 12):1415]

Cited: 0 times

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Unprecedented tris-phosphido-bridged triangular clusters with 42 valence electrons. Chemical, electrochemical and computational studies of their formation and stability.

Tiziana Funaioli, Piero Leoni, Lorella Marchetti, Alberto Albinati, Silvia Rizzato, Fabrizia Fabrizi de Biani, Andrea Ienco, Gabriele Manca, Carlo Mealli,

This paper presents the synthesis and structural characterization of the unprecedented tris-phosphido-bridged compounds Pt3(μ-PBu(t)2)3X3 (X = Cl, Br, I), having only 42 valence electrons, while up to now analogous clusters typically have 44e(-). The new species were obtained by an apparent bielectronic oxidation of the 44e(-) monohalides Pt3(μ-PBu(t)2)3(CO)2X with the ... Read more >>

Inorg Chem (Inorganic chemistry)
[2013, 52(8):4635-4647]

Cited: 1 time

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Probing highly selective H/D exchange processes with a ruthenium complex through neutron diffraction and multinuclear NMR studies.

Mary Grellier, Sax A Mason, Alberto Albinati, Silvia C Capelli, Silvia Rizzato, Christian Bijani, Yannick Coppel, Sylviane Sabo-Etienne,

Deuterium labeling is a powerful way to gain mechanistic information in biology and chemistry. However, selectivity is hard to control experimentally, and labeled sites can be difficult to assign both in solution and in the solid state. Here we show that very selective high-deuterium contents can be achieved for the ... Read more >>

Inorg Chem (Inorganic chemistry)
[2013, 52(13):7329-7337]

Cited: 2 times

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Step-by-step introduction of silazane moieties at ruthenium: different extents of Ru-H-Si bond activation.

Katharine A Smart, Mary Grellier, Laure Vendier, Sax A Mason, Silvia C Capelli, Alberto Albinati, Sylviane Sabo-Etienne,

The coordination of pyridine-2-amino(methyl)dimethylsilane ligands to ruthenium has afforded access to a family of novel complexes that display multicenter Ru-H-Si interactions according to the number of incorporated ligands. The new complexes Ru[κ-Si,N-(SiMe2)N(Me)(C5H4N)](η(4)-C8H12)(η(3)-C8H11) (1), Ru2(μ-H)2(H)2[κ-Si,N-(SiMe2)N(Me)(C5H4N)]4 (2), and Ru(H)[κ-Si,N-(SiMe2)N(Me)(C5H4N)]3 (3) were isolated and fully characterized. The complexes exhibit different degrees of Si-H ... Read more >>

Inorg Chem (Inorganic chemistry)
[2013, 52(5):2654-2661]

Cited: 6 times

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Regioselective synthesis of 1,2- vs 1,3-squaraines.

Elisabetta Ronchi, Riccardo Ruffo, Silvia Rizzato, Alberto Albinati, Luca Beverina, Giorgio A Pagani,

Squaraines have been known for many decades as very stable and versatile vis-NIR absorbing dyes. They have found applications for example as sensitizers in organic photovoltaics and photodetectors. The most common squaraine structure is the 1,3-regioisomer. Their 1,2-regioisomers are seldom mentioned and unanimously regarded as side products. A facile direct ... Read more >>

Org. Lett. (Organic letters)
[2011, 13(12):3166-3169]

Cited: 6 times

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Mechanistic insight into protonolysis and cis-trans isomerization of benzylplatinum(II) complexes assisted by weak ligand-to-metal interactions. A combined kinetic and DFT study.

Emanuela Guido, Giuseppina D'Amico, Nino Russo, Emilia Sicilia, Silvia Rizzato, Alberto Albinati, Andrea Romeo, M Rosaria Plutino, Raffaello Romeo,

Low-temperature NMR measurements showed that protonolysis and deuterolysis by H(D)X acids on meta- and para-substituted dibenzylplatinum(II) complexes cis-[Pt(CH(2)Ar)(2)(PEt(3))(2)] (Ar = C(6)H(4)Y(-); Y = 4-Me, 1a; 3-Me, 1b; H, 1c; 4-F, 1d; 3-F, 1e; 4-Cl, 1f; 3-Cl, 1g; 3-CF(3), 1h) in CD(3)OD leads directly to the formation of trans-[Pt(CH(2)Ar)(PEt(3))(2)(CD(3)OD)]X (4a-4h) and ... Read more >>

Inorg Chem (Inorganic chemistry)
[2011, 50(6):2224-2239]

Cited: 6 times

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Dispersion-driven hydrogen bonding: predicted hydrogen bond between water and platinum(II) identified by neutron diffraction.

Silvia Rizzato, Jacqueline Bergès, Sax A Mason, Alberto Albinati, Jiří Kozelka,

Angew. Chem. Int. Ed. Engl. (Angewandte Chemie (International ed. in English))
[2010, 49(41):7440-7443]

Cited: 19 times

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Proton-transfer reactions on hexanuclear platinum clusters: reversible heterolytic cleavage of H2 and C-H activation affording a linear, cluster-containing polymer.

Piero Leoni, Lorella Marchetti, Veronica Bonuccelli, Swagat K Mohapatra, Alberto Albinati, Silvia Rizzato,

The hexanuclear cluster {Pt(6)}H(2) (2) contains a sterically hindered and chemically stable {Pt(6)} = Pt(6)(mu-PtBu(2))(4)(CO)(4) core, with the six metals forming an edge-bridged tetrahedron. The two hydrides are the reactive sites of the cluster and lie on opposite sides of the cluster, terminally bonded to the two "apical" edge-bridging platinum ... Read more >>

Chemistry (Chemistry (Weinheim an der Bergstrasse, Germany))
[2010, 16(31):9468-9477]

Cited: 1 time

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Synthesis, structure, and electrochemistry of the dicluster molecular pincer [Pt(3)(mu-PBu(t)(2))(3)(CO)(2)](2)(mu-1',1'''-diethynylbiferrocene).

Alberto Albinati, Federica Balzano, Fabrizia Fabrizi de Biani, Piero Leoni, Gabriele Manca, Lorella Marchetti, Silvia Rizzato, Gloria Uccello Barretta, Piero Zanello,

The CuI catalyzed dehydro-halogenation of 1',1'''-diethynylbiferrocene and {Pt(3)}Cl [{Pt(3)} = Pt(3)(mu-PBu(t)(2))(3)(CO)(2)] (1:2 molar ratio) in diethylamine gives in high yields the bicluster derivative [{Pt(3)}CC-(eta(5)-C(5)H(4))Fe(eta(5)-C(5)H(4))](2), 3, in which two platinum triangles are connected by a diethynylbiferrocene spacer. In the structure of 3, confirmed by a diffractometric study, the two {Pt(3)} fragments ... Read more >>

Inorg Chem (Inorganic chemistry)
[2010, 49(8):3714-3720]

Cited: 4 times

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Experimental and TDDFT characterization of the light-induced cluster-to-iron charge transfer in the (ferrocenylethynyl)-substituted trinuclear platinum derivative [Pt3(mu-PBu(t)2)3(CO)2(C[triple bond]C-Fc)]+.

Fabrizia Fabrizi de Biani, Gabriele Manca, Lorella Marchetti, Piero Leoni, Samantha Bruzzone, Carla Guidotti, Andrea Atrei, Alberto Albinati, Silvia Rizzato,

The reaction between Pt(3)(mu-PBu(t)(2))(3)(CO)(2)Cl (2) and ethynylferrocene, in the presence of catalytic amounts of CuI, gives Pt(3)(mu-PBu(t)(2))(3)(CO)(2)C[triple bond]CFc (1), characterized by X-ray crystallography and representing a rare example of the sigma-coordination of an alkynyl moiety to a cluster unit. In a dichloromethane (CH(2)Cl(2)) solution, compound 1 undergoes three consecutive one-electron ... Read more >>

Inorg Chem (Inorganic chemistry)
[2009, 48(21):10126-10137]

Cited: 3 times

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Dynamic NMR study of ethene exchange in cationic CNN-type platinum(II) complexes.

M Rosaria Plutino, Lucia Fenech, Sergio Stoccoro, Silvia Rizzato, Carlo Castellano, Alberto Albinati,

Cationic ethylene platinum(II) complexes of the type [Pt(CNN)(C(2)H(4))](+), containing a methyl fragment and different diimines (NN), or terdentate (kappaC-kappa(2)NN') anionic ligands, were synthesized and fully characterized both as solids and in solution [NN = 2,2'-dipyridylamine, 1; 2,2'-dipyridylsulfide, 2; 1,10-phenanthroline, 3; 4,7-diphenyl-1,10-phenanthroline, 4; 3,4,7,8-tetramethyl-1,10-phenanthroline, 5; 2,2'-bipyridine, 6; HC-NN = 6-tert-butyl-2,2'-bipyridine, 7; ... Read more >>

Inorg Chem (Inorganic chemistry)
[2010, 49(2):407-418]

Cited: 1 time

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Versatile coordination of 2-pyridinetetramethyldisilazane at ruthenium: Ru(II) vs Ru(IV) as evidenced by NMR, X-ray, neutron, and DFT studies.

Mary Grellier, Tahra Ayed, Jean-Claude Barthelat, Alberto Albinati, Sax Mason, Laure Vendier, Yannick Coppel, Sylviane Sabo-Etienne,

The novel disilazane compound 2-pyridinetetramethyldisilazane (1) has been synthesized. The competition between N-pyridine coordination and Si-H bond activation was studied through its reactivity with two ruthenium complexes. The reaction between 1 and RuH(2)(H(2))(2)(PCy(3))(2) led to the isolation of the new complex RuH(2){(eta(2)-HSiMe(2))N(kappaN-C(5)H(4)N)(SiMe(2)H)}(PCy(3))(2) (2) resulting from the loss of two dihydrogen ... Read more >>

J. Am. Chem. Soc. (Journal of the American Chemical Society)
[2009, 131(22):7633-7640]

Cited: 5 times

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Ion pairing and salt structure in organic salts through diffusion, Overhauser, DFT and X-ray methods.

Aitor Moreno, Paul S Pregosin, Luis F Veiros, Alberto Albinati, Silvia Rizzato,

Pulsed gradient spin-echo (PGSE) diffusion characteristics for a) the new [brucinium][X] salts 6 a-f [a: X = BF(4)(-); b: X = PF(6)(-); c: X = MeSO(3)(-), d: X = CF(3)SO(3)(-); e: X = BArF(-); f: X = PtCl(3)(C(2)H(4))(-)], b) 4-tert-butyl-N-benzyl analogue, 7 and c) the aryl carbocations (p-R-C(6)H(4))(2)CH 9 a ... Read more >>

Chemistry (Chemistry (Weinheim an der Bergstrasse, Germany))
[2009, 15(28):6848-6862]

Cited: 3 times

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Synthetic route to dinuclear platinum(II) complexes [{trans-PtCl(NH3)2}2(mu-L)]2+ (L = aliphatic or heterocyclic diamine) as potential antitumor agents, exploiting the mutual activation of hydroxido ligands and ammonium groups.

Claude Chopard, Christine Lenoir, Silvia Rizzato, Michel Vidal, Jorma Arpalahti, Laure Gabison, Alberto Albinati, Christiane Garbay, Jirí Kozelka,

A simple and efficient method for the synthesis of potentially antitumor-active dinuclear platinum complexes of the general formula [{trans-PtCl(NH3)2}2(mu-L)]((n+2)+) (L = aliphatic or heterocyclic diamine; n = charge of L) is presented. The procedure is based on the mutual in situ activation of trans-[PtCl(OH)(NH3)2] and the linker L in the ... Read more >>

Inorg Chem (Inorganic chemistry)
[2008, 47(20):9701-9705]

Cited: 5 times

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Synchronized fluxional motion and cyclometalation of ligands in platinum(II) complexes.

Raffaello Romeo, Giuseppina D'Amico, Emanuela Guido, Alberto Albinati, Silvia Rizzato,

Oscillation of the 2,9-dimethyl-1,10-phenanthroline (dmphen) ligand between nonequivalent exchanging sites in [Pt(Me)(dmphen)(P(o-tolyl)3)]+ and phosphane rotation around the Pt-P bond take place at the same rate. Thus, this cationic complex behaves as a molecular gear, exhibiting a fascinating synchronism between two otherwise independent fluxional motions. The process (DeltaG(3330)(#) = 68.5 +/- ... Read more >>

Inorg Chem (Inorganic chemistry)
[2007, 46(25):10681-10692]

Cited: 1 time

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PGSE NMR diffusion overhauser studies on [Ru(Cp*)(eta6-arene)][PF6], plus a variety of transition-metal, inorganic, and organic salts: an overview of ion pairing in dichloromethane.

Aitor Moreno, Paul S Pregosin, Luis F Veiros, Alberto Albinati, Silvia Rizzato,

PGSE diffusion, 19F, 1H HOESY and 13C NMR studies for a series of [Ru(Cp*)(eta6-arene)][PF6] (1) salts are presented. The solid-state structure of [Ru(Cp*)(eta6-fluorobenzene)][PF6] (1 c) is reported. The extent of the ion pairing and the relative positions of the ions are shown to depend on the arene. For the solvent ... Read more >>

Chemistry (Chemistry (Weinheim an der Bergstrasse, Germany))
[2008, 14(18):5617-5629]

Cited: 4 times

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Synthesis, structure, and electrochemical properties of sterically protected molybdenum trihydride redox pairs: a paramagnetic "stretched" dihydrogen complex?

Miguel Baya, Jennifer Houghton, Jean-Claude Daran, Rinaldo Poli, Louise Male, Alberto Albinati, Matthias Gutman,

Complexes [MoCp(#)(PMe(3))(2)H(3)] (Cp(#)=1,2,4-C(5)H(2)tBu(3), 2 a; C(5)HiPr(4), 2 b) have been synthesized from the corresponding compounds [MoCp(#)Cl(4)] (1 a, 1 b) and fully characterized, including by X-ray crystallography and by a neutron diffraction study for 2 a. Protonation of 2 a led to complex [Mo(1,2,4-C(5)H(2)tBu(3))(PMe(3))(2)H(4)](+) (3 a) in THF and to ... Read more >>

Chemistry (Chemistry (Weinheim an der Bergstrasse, Germany))
[2007, 13(19):5347-5359]

Cited: 3 times

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Observation of exceptionally strong binding of molecular hydrogen in a porous material: formation of an eta(2)-H(2) complex in a Cu-exchanged ZSM-5 zeolite.

Peter A Georgiev, Alberto Albinati, Barbara L Mojet, Jacques Ollivier, Juergen Eckert,

J. Am. Chem. Soc. (Journal of the American Chemical Society)
[2007, 129(26):8086-8087]

Cited: 12 times

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New methacrylate-functionalized ba and ba-ti oxoclusters as potential nanosized building blocks for inorganic-organic hybrid materials: synthesis and characterization.

Alberto Albinati, Francesco Faccini, Silvia Gross, Guido Kickelbick, Silvia Rizzato, Alfonso Venzo,

Two different methacrylate modified barium-titanium and barium-based oxoclusters, Ba2Ti10(mu3-O)8(mu2-OH)5(mu2-OMc)20(OiPrOMe)2 (1) and [Ba(OMc)2(McOH)3]n (2), were synthesized by reacting methacrylic acid with barium-titanium and barium-zirconium double alkoxides, respectively. The X-ray structure determination of oxocluster 1 shows a core consisting of a ring of 10 titania octahedra, sharing corners, that surround the two ... Read more >>

Inorg Chem (Inorganic chemistry)
[2007, 46(9):3459-3466]

Cited: 5 times

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Study of intramolecular competition between carboxylate and phosphonate for Pt(II) with the aid of a novel tridentate carboxylato-thioether-phosphonato ligand.

Matthieu Hamel, Silvia Rizzato, Matthieu Lecinq, Aboubacary Sène, Michel Vazeux, Mihaela Gulea, Alberto Albinati, Jirí Kozelka,

The tridentate dianionic ligand 2-[2'-(hydroxyisopropoxyphosphoryl)phenylsulfanyl]benzoate (L(2-)) reacts with cis-[Pt(NH(3))(2)(H(2)O)(2)](2+) to form an S,O-chelate in which the O-coordinated group is either carboxylate or phosphonate, depending on the degree of protonation of the complex. Carboxylate appears to be the stronger ligand, and the stoichiometric reaction between cis-[Pt(NH(3))(2)(H(2)O)(2)](2+) and L(2-) yields the neutral ... Read more >>

Chemistry (Chemistry (Weinheim an der Bergstrasse, Germany))
[2007, 13(19):5441-5449]

Cited: 0 times

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