A5024372989- Organometallic Complex Synthesis and Catalysis
- Asymmetric Hydrogenation and Catalysis
- Crystallization and Solubility Studies
- X-ray Diffraction in Crystallography
- Metal complexes synthesis and properties
- Crystallography and molecular interactions
- Lanthanide and Transition Metal Complexes
- Coordination Chemistry and Organometallics
- Magnetism in coordination complexes
- Synthetic Organic Chemistry Methods
- Cyclopropane Reaction Mechanisms
- Synthesis and characterization of novel inorganic/organometallic compounds
- Radiopharmaceutical Chemistry and Applications
- Inorganic and Organometallic Chemistry
- Metal-Catalyzed Oxygenation Mechanisms
- Metalloenzymes and iron-sulfur proteins
- Chemical Reactions and Mechanisms
- Catalytic Cross-Coupling Reactions
- Ferrocene Chemistry and Applications
- Radioactive element chemistry and processing
- Catalytic Alkyne Reactions
- Carbon dioxide utilization in catalysis
- Organometallic Compounds Synthesis and Characterization
- Chemical Synthesis and Analysis
- Synthesis and Characterization of Heterocyclic Compounds
Ca' Foscari University of Venice
2010-2019
Consorzio Interuniversitario Reattività Chimica e Catalisi
2019
Ospedale Civile di Venezia
2014
Universidade de Vigo
2004-2009
University of Parma
2005
Hydride complexes IrHCl(2)(PiPr(3))P(2) (1) and IrHCl(2)P(3) (2) [P = P(OEt)(3) PPh(OEt)(2)] were prepared by allowing IrHCl(2)(PiPr(3))(2) to react with phosphite in refluxing benzene or toluene. Treatment of IrHCl(2)P(3), first HBF(4).Et(2)O then an excess ArCH(2)N(3), afforded benzyl azide [IrCl(2)(eta(1)-N(3)CH(2)Ar)P(3)]BPh(4) (3, 4) [Ar C(6)H(5), 4-CH(3)C(6)H(4); P P(OEt)(3), PPh(OEt)(2)]. Azide reacted CH(2)Cl(2) solution, leading the imine derivative...
Reaction of OsH(2)P(4) [P = P(OEt)(3), PPh(OEt)(2), PPh(2)OEt] with methyl triflate followed by the treatment hydrazines gave [OsH(RNHNH(2))P(4)]BPh(4) (1-3) (R H, CH(3), C(6)H(5), 4-NO(2)C(6)H(4)) derivatives. Instead, reaction first triflate, then triflic acid, and finally an excess appropriate hydrazine afforded bis(hydrazine) [Os(RNHNH(2))(2)P(4)](BPh(4))(2) (4, 5) C(6)H(5)) complexes. Also [Os(NH(2)NH(2)){P(OEt)(3)}(5)](BPh(4))(2) (7) derivative was prepared. All complexes were fully...
Triazenide [M(η2-1,3-ArNNNAr)P4]BPh4 [M = Ru, Os; Ar Ph, p-tolyl; P P(OMe)3, P(OEt)3, PPh(OEt)2] complexes were prepared by allowing triflate [M(κ2-OTf)P4]OTf species to react first with 1,3-ArNNN(H)Ar triazene and then an excess of triethylamine. Alternatively, ruthenium triazenide [Ru(η2-1,3-ArNNNAr)P4]BPh4 derivatives obtained reacting hydride [RuH(η2-H2)P4]+ RuH(κ1-OTf)P4 compounds 1,3-diaryltriazene. The characterized spectroscopy X-ray crystallography the...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTMolecular hydrogen complexes. Preparation and reactivity of new ruthenium(II) osmium(II) derivatives a comparison along the iron triadPaola Amendola, Stefano Antoniutti, Gabriele Albertin, Emilio BordignonCite this: Inorg. Chem. 1990, 29, 2, 318–324Publication Date (Print):January 1, 1990Publication History Published online1 May 2002Published inissue 1 January...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTReactions of molecular hydrogen ruthenium complexes [RuH(.eta.2-H2)P4]BF4 with alkynes: preparation and crystal structure the [Ru{.eta.3-(p-tolyl)C3CH(p-tolyl)}{PhP(OEt)2}4]BPh4 derivativeGabriele Albertin, Paola Amendola, Stefano Antoniutti, Sandra Ianelli, Giancarlo Pelizzi, Emilio BordignonCite this: Organometallics 1991, 10, 8, 2876–2883Publication Date (Print):August 1, 1991Publication History Published online1 May 2002Published inissue 1...
Photoluminescent Mn(<sc>ii</sc>) tetrahedral complexes characterized by intense emission in the green region were isolated from reaction of MnX<sub>2</sub> (X = Cl, Br, I) and ligand 1,3-dimethyl-2-phenyl-1,3-diazaphospholidine-2-oxide.
Hydride complexes [ReH(CO)4L] 1, [ReH(CO)3L2] 2, [ReH(CO)2L3] 3 and [ReH(CO)L4] 4 [L = P(OEt)3 a, PPh(OEt)2 b, PPh2(OEt) c or PPh2(OMe) d] were prepared by treating [ReH(CO)5] with the appropriate phosphite under UV irradiation reflux. The characterised IR, 1H, 13C 31P NMR spectroscopy crystal structure determinations of 1d 2d. Protonation monocarbonyls in CD2Cl2 HBF4·Et2O resulted an equilibrium mixture classical dihydride [ReH2(CO)L4]+BF4– their non-classical tautomers...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTNew molecular hydrogen iron(II) complexes. Synthesis, characterization, and reactivity with aryldiazonium cationsGabriele Albertin, Stefano Antoniutti, Emilio BordignonCite this: J. Am. Chem. Soc. 1989, 111, 6, 2072–2077Publication Date (Print):March 1, 1989Publication History Published online1 May 2002Published inissue 1 March 1989https://pubs.acs.org/doi/10.1021/ja00188a021https://doi.org/10.1021/ja00188a021research-articleACS PublicationsRequest...
The trichlorostannyl complexes M(SnCl3)(CO)nP5-n (1−3: M = Mn, Re; P PPh(OEt)2 (a), P(OEt)3 (b); n 2, 3) were prepared by allowing chloro MCl(CO)nP5-n compounds to react with an excess of SnCl2·2H2O. Treatment 1−3 NaBH4 in ethanol yielded the tin polyhydride derivatives M(SnH3)(CO)nP5-n (4−6). MgBrMe gave trimethylstannyl M(SnMe3)(CO)nP5-n (7−9), and reaction MgBr(C⋮CH) trialkynylstannyl M[Sn(C⋮CH)3](CO)nP5-n (10, 11). alkynylstannyl M[Sn(C⋮CR)3](CO)nP5-n (12−14: R p-tolyl) also Li+[C⋮CR]-...
The diazoalkane complexes [Ru(η5-C5H5)(N2CAr1Ar2)(PPh3)(L)]BPh4 (1–5: Ar1 = Ar2 Ph (a), and p-tolyl (b), Ar1Ar2 C12H8 (c), PhCO (d); L PPh3 (1), P(OMe)3 (2), P(OEt)3 (3), PPh(OEt)2 (4), ButNC (5)) were prepared by allowing the chloro compounds RuCl(η5-C5H5)(PPh3)(L) to react with diazoalkanes Ar1Ar2CN2 in ethanol. Treatment of 1–5 ethylene (CH2═CH2) under mild conditions (1 atm, room temperature) led not only η2-ethylene [Ru(η5-C5H5)(η2-CH2═CH2)(PPh3)(L)]BPh4 (10–14) but also dipolar (3 + 2)...
Hydride complexes MnH(CO)3P2 (1), MnH(CO)2P3 (2), and MnH(CO)P4 (3) (P = P(OEt)3 (a), PPh(OEt)2 (b), PPh2OEt (c), PPh(OiPr)2 (d) were prepared by allowing the MnH(CO)5 species to react with an excess of phosphine upon UV irradiation or under reflux conditions. Their formulation geometry in solution established IR 1H, 13C, 31P NMR spectroscopy. Protonation reactions HBF4·Et2O monocarbonyls afford isolable dihydrogen derivatives [Mn(η2-H2)(CO)P4]BPh4 (5), which characterized...
Hydride complexes [FeH(N-N)P3]BPh4 (1, 2) [N-N = 2,2'-bipyridine (bpy) and 1,10-phenanthroline (phen); P P(OEt)4, PPh(OEt)2, PPh2OEt] were prepared by allowing FeCl2(N-N) to react with phosphite in the presence of NaBH4. The hydrides [FeH(bpy)2P]BPh4 (3) [P P(OEt)3 PPh(OEt)2] reacting tris(2,2'-bipyridine) [Fe(bpy)3]Cl2.5H2O complex appropriate protonation reaction 1 2 acid was studied led thermally unstable (above -20 degrees C) dihydrogen [Fe(eta2-H2)(N-N)P3]2+ (4, 5) derivatives. H2...
Chloro complexes [RuCl(N-N)P3]BPh4 (1-3) [N-N = 2,2'-bipyridine, bpy; 1,10-phenanthroline, phen; 5,5'-dimethyl-2,2'-bipyridine, 5,5'-Me2bpy; P P(OEt)3, PPh(OEt)2 and PPh2OEt] were prepared by allowing the [RuCl4(N-N)].H2O compounds to react with an excess of phosphite in ethanol. The bis(bipyridine) [RuCl(bpy)2[P(OEt)3]]BPh4 (7) complex was also reacting RuCl2(bpy)2.2H2O Treatment chloro 1-3 7 NaBH4 yielded hydride [RuH(N-N)P3]BPh4 (4-6) [RuH(bpy)2P]BPh4 (8) derivatives, which characterized...
Diazoalkane complexes [Ru(η(5)-C5Me5)(N2CAr1Ar2)(PPh3){P(OR)3}]BPh4 [R = Me (1), Et (2); Ar1 Ar2 Ph (a); Ph, p-tolyl (b); Ar1Ar2 C12H8 (c)] were prepared by allowing chloro RuCl(η(5)-C5Me5)(PPh3)[P(OR)3] to react with diazoalkane Ar1Ar2CN2 in ethanol. The treatment of compounds 1 and 2 H2O afforded 1,2-diazene derivatives [Ru(η(5)-C5Me5)(η(2)-NH═NH)(PPh3){P(OR)3}]BPh4 (3 4) ketone Ar1Ar2CO. A reaction path involving nucleophilic attack on the coordinated is proposed. characterized...
Diazoalkane complexes [Ru(η(5)-C9H7)(N2CAr1Ar2)(PPh3)L]BPh4 (1-3) [L = PPh3, P(OMe)3, P(OEt)3; Ar1 Ar2 Ph; Ph, p-tolyl; Ar1Ar2 C12H8 fluorenyl] were prepared by allowing chloro-complexes [RuCl(η(5)-C9H7)(PPh3)L] to react with an excess of diazoalkane in ethanol. Complexes 1-3 reacted ethylene CH2=CH2 (1 atm) and maleic anhydride [ma, CH=CHCO(O)CO] afford η(2)-alkene [Ru(η(5)-C9H7)(η(2)-CH2=CH2)(PPh3)L]BPh4 (4, 5) [Ru(η(5)-C9H7){η(2)-CH=CHCO(O)CO}(PPh3)L]BPh4 (7). Further, underwent...
The diazoalkane complexes [Ru(η(5)-C5Me5)(N2CAr1Ar2){P(OR)3}L]BPh4 (1-4) [R = Me, L P(OMe)3 (1); R Et, P(OEt)3 (2); PPh3 (3); (4); Ar1 Ar2 Ph (a); Ph, p-tolyl (b); Ar1Ar2 C12H8 (c); PhC(O) (d)] and [Ru(η(5)-C5Me5){N2C(C12H8)}{PPh(OEt)2}(PPh3)]BPh4 (5c) were prepared by allowing chloro-compounds RuCl(η(5)-C5Me5)[P(OR)3]L to react with the Ar1Ar2CN2 in presence of NaBPh4. Treatment 1-4 H2O afforded 1,2-diazene derivatives [Ru(η(5)-C5Me5)(η(2)-NH═NH){P(OR)3}L]BPh4 (6-9) ketone Ar1Ar2CO. A...
Hydrazine complexes [RuH(R1NHNH2)L4]BPh4 1–3, [Ru(R1NHNH2)2L4][BPh4]2 4–6 [R1 = H, Me, Ph, 4-MeC6H4 or 4-O2NC6H4; L P(OEt)3, PPh(OEt)2 P(OMe)3] were prepared by allowing the hydride species [RuH2L4] to react, first with triflic acid (CF3SO3H) and then an excess of appropriate hydrazine. The derivatives [RuH(Me2NNH2){P(OEt)3}4]BPh4 1f, [Ru(η1-OSO2CF3)(Me2NNH2){P(OEt)3}4]BPh4 9 [Ru(η2-Ph-CONHNH2)L4][BPh4]2 7,8 [L P(OEt)3 PPh(OEt)2] also obtained. formulation geometry in solution compounds...
Tris(pyrazolyl)borate aryldiazenido complexes [RuTpLL'(ArN(2))](BF(4))(2) (1-3) [Ar = C(6)H(5), 4-CH(3)C(6)H(4); Tp hydridotris(pyrazolyl)borate; L P(OEt)(3) or PPh(OEt)(2), L' PPh(3); P(OEt)(3)] were prepared by allowing dihydrogen [RuTp(eta(2)-H(2))LL'](+) derivatives to react with aryldiazonium cations. Spectroscopic characterization (IR, (15)N NMR) using the (15)N-labeled strongly supports presence of a linear [Ru]-NN-Ar group. Hydrazine [RuTp(RNHNH(2))LL']BPh(4) (4-6) [R H, CH(3),...
Aryldiazene complexes [Mn(CO)(3)(ArN=NH)P(2)]BF(4) (1, 2) and [{Mn(CO)(3)P(2)}(2)(&mgr;-HN=NArArN=NH)](BF(4))(2) (3, 4) [P = PPh(OEt)(2), PPh(2)OEt; Ar C(6)H(5), 2-CH(3)C(6)H(4), 4-CH(3)C(6)H(4), 4-CH(3)OC(6)H(4); ArAr 4,4'-C(6)H(4)C(6)H(4), 4,4'-(2-CH(3))C(6)H(3)C(6)H(3)(2-CH(3)), 4,4'-C(6)H(4)CH(2)C(6)H(4)] were prepared by reacting hydride species MnH(CO)(3)P(2) with the appropriate aryldiazonium cations in CH(2)Cl(2) or acetone solutions at -80 degrees C. The compounds characterized IR,...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBis(aryldiazene) derivatives of iron(II): preparation, characterization, and properties the first complexes containing two diazene ligands bonded to same central metal. The x-ray crystal structures hexacoordinate [FeH(4-CH3C6H4NNH)[P(OEt)3]4]+, pentacoordinate [Fe(4-CH3C6H4N2)[P(OEt)3]4]+ cationsGabriele. Albertin, Stefano. Antoniutti, Giancarlo. Pelizzi, Francesca. Vitali, Emilio. BordignonCite this: J. Am. Chem. Soc. 1986, 108, 21,...
ADVERTISEMENT RETURN TO ISSUEPREVArticleNEXTBis(aryldiazene)- and related mono(aryldiazenido)ruthenium complexes: preparation, characterization, reactivity. Crystal structure of [Ru(4-CH3C6H4N=NH)2{P(OEt)3}4](PF6)2Gabriele Albertin, Stefano Antoniutti, Giancarlo Pelizzi, Francesca Vitali, Emilio BordignonCite this: Inorg. Chem. 1988, 27, 5, 829–835Publication Date (Print):March 1, 1988Publication History Published online1 May 2002Published inissue 1 March...
Trichlorostannyl complexes M(SnCl3)(Tp)L(PPh3) (1, 2) and M(SnCl3)(Cp)L(PPh3) (5, 6) [M = Ru, Os; L P(OMe)3 (a), P(OEt)3 (b), PPh(OEt)2 (c), PPh3 (d)] were prepared by allowing chloro MCl(Tp)L(PPh3) MCl(Cp)L(PPh3) to react with an excess of SnCl2·2H2O in ethanol. Treatment trichlorostannyl 1, 2, 5, 6 NaBH4 ethanol yielded tin trihydride derivatives M(SnH3)(Tp)L(PPh3) (3, 4) M(SnH3)(Cp)L(PPh3) (7, 8). Reaction these CCl4 gave the precursors 6. Hydridochlorostannyl intermediates...
Mixed-ligand hydride complexes OsHCl(CO)(PPh3)2L (2) [L = P(OMe)3, P(OEt)3] were prepared by allowing OsHCl(CO)(PPh3)3 (1) to react with an excess of phosphite P(OR)3 in refluxing toluene. Dichloro compounds OsCl2(CO)(PPh3)2L (3, 4) also reacting 1, 2 HCl. Treatment hydrides (2), first triflic acid and then RN3 afforded organic azide [OsCl(η(1)-N3R)(CO)(PPh3)2L]BPh4 (5-7) [R 4-CH3C6H4CH2, C6H5CH2, C6H5; L P(OEt)3]. Benzylazide CH2Cl2/ethanol solution, leading the imine derivative...
The preparation of bis(diethylcyanamide) [M(NCNEt<sub>2</sub>)<sub>2</sub>L<sub>4</sub>](BPh<sub>4</sub>)<sub>2</sub>and bis(cyanoguanidine) [M{NCN(H)C(NH<sub>2</sub>)NH}<sub>2</sub>L<sub>4</sub>](BPh<sub>4</sub>)<sub>2</sub>[L = P(OEt)<sub>3</sub>] complexes Fe(<sc>ii</sc>), Ru(<sc>ii</sc>) and Os(<sc>ii</sc>) as well their reactivity with hydrazines RNHNH<sub>2</sub>(R H, CH<sub>3</sub>, C<sub>6</sub>H<sub>5</sub>) are described.