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Estrada AL, Wititsuwannakul T, Kromm K, Hampel F, Hall MB, Gladysz J. Syntheses, Rearrangements, and Structural Analyses of Unsaturated Nitrogen Donor Ligands Derived from Diphenyldiazomethane and the Chiral Rhenium Lewis Acid [(η5-C5H5)Re(NO)(PPh3)]+. Dalton Trans 2022; 51:7305-7320. [DOI: 10.1039/d2dt00890d] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Diphenyldiazomethane and a labile chlorobenzene complex of [(η5-C5H5)Re(NO)(PPh3)]+ BF4– react to give the η1 adduct [(η5-C5H5)Re(NO)(PPh3)(NNCPh2)]+ BF4– (73%). When this is con-ducted in the presence of copper powder, a 3-phenyl-1H-indazole...
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Allenylidene and diazoalkane complexes of a half-sandwich mixed phosphine – phosphinite ruthenium fragment. Inorganica Chim Acta 2021. [DOI: 10.1016/j.ica.2021.120277] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Albertin G, Antoniutti S, Castro J, Sibilla F. Pentamethylcyclopentadienyl osmium complexes that contain diazoalkane, dioxygen and allenylidene ligands: preparation and reactivity. Dalton Trans 2019; 48:3116-3131. [PMID: 30768111 DOI: 10.1039/c9dt00223e] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Abstract
Diazoalkane complexes [Os(η5-C5Me5)(N2CAr1Ar2)(PPh3){P(OR)3}]BPh4 (1, 2) [R = Me (1), Et (2); Ar1 = Ar2 = Ph (a); Ar1 = Ph, Ar2 = p-tolyl (b); Ar1Ar2 = C12H8 (fluorenyl) (c)] were prepared by reacting bromo-compounds OsBr(η5-C5Me5)(PPh3){P(OR)3} with an excess of diazoalkane in ethanol. The treatment of diazoalkane complexes 1 and 2 with acetylene under mild conditions (1 atm, RT) led to dipolar (3 + 2) cycloaddition affording 3H-pyrazole derivatives [Os(η5-C5Me5)(η1-[upper bond 1 start]N[double bond, length as m-dash]NC(C12H8)CH[double bond, length as m-dash]C[upper bond 1 end]H)(PPh3){P(OR)3}]BPh4 (6, 7) [R = Me (6), Et (7)] whereas reactions with terminal alkynes R1C[triple bond, length as m-dash]CH (R1 = Ph, p-tolyl, COOMe) gave vinylidene derivatives [Os(η5-C5Me5){[double bond, length as m-dash]C[double bond, length as m-dash]C(H)R1}(PPh3){P(OR)3}]BPh4 (8b-d, 9b-d) [R = Me (8), Et (9); R1 = Ph (b), p-tolyl (c), COOMe (d)]. Exposure to air of dichloromethane solutions of complexes 1 and 2 produced dioxygen derivatives [Os(η5-C5Me5)(η2-O2)(PPh3){P(OR)3}]BPh4 (10, 11) [R = Me (10), Et (11)]. Allenylidene [Os][double bond, length as m-dash]C[double bond, length as m-dash]C[double bond, length as m-dash]CR1R2 (12-14) [R1 = R2 = Ph (12, 13); R1 = Ph, R2 = Me (14)], vinylvinylidene [Os][double bond, length as m-dash]C[double bond, length as m-dash]C(H)C(Ph)[double bond, length as m-dash]CH2 (15) and 3-hydroxyvinylidene [Os][double bond, length as m-dash]C[double bond, length as m-dash]C(H)C(H)R2(OH) (16, 17) [R2 = Ph (16), H (17)] derivatives were also prepared. The vinylidene complex [Os(η5-C5Me5)([double bond, length as m-dash]C[double bond, length as m-dash]CH2)(PPh3){P(OMe)3}]BPh4 (8a) reacted with PPh3 to afford the alkenylphosphonium derivative [Os(η5-C5Me5){η1-C(H)[double bond, length as m-dash]C(H)PPh3}(PPh3){P(OMe)3}]BPh4 (18) whereas vinylidene complexes 8 and 9 reacted with water leading to the hydrolysis of the alkyne and the formation of carbonyl complexes [Os(η5-C5Me5)(CO)(PPh3){P(OR)3}]BPh4 (19, 20). The complexes were characterised by spectroscopic data (IR and NMR) and by X-ray crystal structure determination of [Os(η5-C5Me5){[double bond, length as m-dash]C[double bond, length as m-dash]C(H)p-tolyl}(PPh3){P(OEt)3}]BPh4 (9c), [Os(η5-C5Me5)(η2-O2)(PPh3){P(OMe)3}]BPh4 (10) and [Os(η5-C5Me5)(CO)(PPh3){P(OMe)3}]BPh4 (19).
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Via Torino 155, 30172 Venezia Mestre, Italy.
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Albertin G, Antoniutti S, Castro J. Preparation of Diethylcyanamide and Cyanoguanidine Complexes of Iridium. ChemistrySelect 2018. [DOI: 10.1002/slct.201802319] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca‘ Foscari Venezia; Via Torino 155 30172 Mestre Venezia Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca‘ Foscari Venezia; Via Torino 155 30172 Mestre Venezia Italy
| | - Jesús Castro
- Departamento de Química Inorgánica; Universidade de Vigo, Facultade de Química, Edificio de Ciencias Experimentais; 36310 Vigo (Galicia) Spain
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Albertin G, Antoniutti S, Castro J, Ganz V, Sibilla F. Preparation and reactivity of half-sandwich organic azide complexes of osmium. Dalton Trans 2018; 47:11658-11668. [PMID: 30095833 DOI: 10.1039/c8dt02230e] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
Organic azide complexes [Os(η5-C5H5)(κ1-N3R)(PPh3){P(OR1)3}]BPh4 (1, 2) [R = CH2C6H5 (a), CH2C6H4-4-CH3 (b), CH(CH3)C6H5 (c), C6H5 (d); R1 = Me (1), Et (2)] were prepared by allowing bromo-compounds [OsBr(η5-C5H5)(PPh3){P(OR1)3}] to react first with AgOTf and then with an excess of azide in toluene. Benzylazide complexes reacted in solution leading to imine derivatives [Os(η5-C5H5){κ1-NH[double bond, length as m-dash]C(R2)Ar}(PPh3){P(OR1)3}]BPh4 (3, 4) [R2 = H (a, b), CH3 (c); Ar = C6H5, C6H4-4-CH3; R1 = Me (3), Et (4)]. Phenylazide, on the other hand, reacted in solution affording the dinuclear dinitrogen complex [{Os(η5-C5H5)(PPh3)[P(OMe)3]}2(μ-N2)](BPh4)2 (5). Depending on the nature of the R substituent, the reaction of the p-cymene complex [OsCl2(η6-p-cymene)(PPh3){P(OEt)3}] with RN3 yielded imine [OsCl(η6-p-cymene){κ1-NH[double bond, length as m-dash]C(H)Ar}{P(OEt)3}]BPh4 (6) (Ar = C6H4-4-CH3) and amine derivatives [OsCl(η6-p-cymene)(κ1-NH2C6H5){P(OEt)3}]BPh4 (7). The complexes were characterised spectroscopically (IR, 1H, 31P, 15N NMR) and by the X-ray crystal structure determination of [{Os(η5-C5H5)(PPh3)[P(OMe)3]}2(μ-N2)](BPh4)2 (5).
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Via Torino 155, 30172 Venezia Mestre, Italy.
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Albertin G, Antoniutti S, Bortoluzzi M, Castro J, Ferraro V. Preparation and reactivity of half-sandwich dioxygen complexes of ruthenium. Dalton Trans 2018; 47:9173-9184. [DOI: 10.1039/c8dt01871e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
The preparation of dioxygen complexes [Ru(η5-C5Me5)(η2-O2){P(OR)3}L]BPh4 and their intramolecular oxygen transfer reaction in the presence of acid affording bis(phosphate) derivatives are described.
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari Venezia
- 30172 Venezia Mestre
- Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari Venezia
- 30172 Venezia Mestre
- Italy
| | - Marco Bortoluzzi
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari Venezia
- 30172 Venezia Mestre
- Italy
| | - Jesús Castro
- Departamento de Química Inorgánica
- Universidade de Vigo
- Facultade de Química
- 36310 Vigo
- Spain
| | - Valentina Ferraro
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari Venezia
- 30172 Venezia Mestre
- Italy
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Preparation of half-sandwich azine complexes of osmium. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.09.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Albertin G, Antoniutti S, Bortoluzzi M, Castro J, Trevisan M. Ruthenium(II) pentamethylcyclopentadienyl half-sandwich carbene complexes with polypyridyl ligands. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.07.022] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Bai W, Lee KH, Chen J, Sung HHY, Williams ID, Lin Z, Jia G. Reactions of (Cyclopentadienylidenehydrazono)triphenylphosphorane with Chlororuthenium(II) Complexes and Substituent Effect on the Thermodynamic Trend in the Migratory-Insertion Reactions of Chlororuthenium–Alkylidene Complexes. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00427] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wei Bai
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ka-Ho Lee
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Jiangxi Chen
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Herman H. Y. Sung
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Ian D. Williams
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Zhenyang Lin
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
| | - Guochen Jia
- Department of Chemistry, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong
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The chemistry of the carbon-transition metal double and triple bond: Annual survey covering the year 2015. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.08.007] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Albertin G, Antoniutti S, Castro J, Sibilla F. Preparation of Azine Complexes of Ruthenium(II). ChemistrySelect 2016. [DOI: 10.1002/slct.201601559] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari Venezia; Via Torino 155 30172 Mestre Venezia Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari Venezia; Via Torino 155 30172 Mestre Venezia Italy
| | - Jesús Castro
- Departamento de Química Inorgánica; Universidade de Vigo, Facultade de Química; Edificio de Ciencias Experimentais; 36310 Vigo (Galicia) Spain
| | - Francesca Sibilla
- Dipartimento di Scienze Molecolari e Nanosistemi; Università Ca' Foscari Venezia; Via Torino 155 30172 Mestre Venezia Italy
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Reactivity with alkene and alkyne of pentamethylcyclopentadienyl half-sandwich diazoalkane complexes of ruthenium. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.07.016] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Albertin G, Antoniutti S, Bortoluzzi M, Botter A, Castro J. Pentamethylcyclopentadienyl Half-Sandwich Diazoalkane Complexes of Ruthenium: Preparation and Reactivity. Inorg Chem 2016; 55:5592-602. [PMID: 27187280 DOI: 10.1021/acs.inorgchem.6b00671] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The diazoalkane complexes [Ru(η(5)-C5Me5)(N2CAr1Ar2){P(OR)3}L]BPh4 (1-4) [R = Me, L = P(OMe)3 (1); R = Et, L = P(OEt)3 (2); R = Me, L = PPh3 (3); R = Et, L = PPh3 (4); Ar1 = Ar2 = Ph (a); Ar1 = Ph, Ar2 = p-tolyl (b); Ar1Ar2 = C12H8 (c); Ar1 = Ph, Ar2 = 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 diazoalkane Ar1Ar2CN2 in the presence of NaBPh4. Treatment of complexes 1-4 with H2O afforded 1,2-diazene derivatives [Ru(η(5)-C5Me5)(η(2)-NH═NH){P(OR)3}L]BPh4 (6-9) and ketone Ar1Ar2CO. A reaction path involving nucleophilic attack by H2O on the coordinated diazoalkane is proposed and supported by density functional theory calculations. The complexes were characterized spectroscopically (IR and (1)H, (31)P, (13)C, (15)N NMR) and by X-ray crystal structure determination of [Ru(η(5)-C5Me5)(N2CC12H8){P(OEt)3}2]BPh4 (2c) and [Ru(η(5)-C5Me5)(η(2)-NH═NH){P(OEt)3}2]BPh4 (7).
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia , Via Torino 155, 30172 Mestre Venezia, Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia , Via Torino 155, 30172 Mestre Venezia, Italy
| | - Marco Bortoluzzi
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia , Via Torino 155, 30172 Mestre Venezia, Italy
| | - Alessandra Botter
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia , Via Torino 155, 30172 Mestre Venezia, Italy
| | - Jesús Castro
- Departamento de Química Inorgánica, Facultade de Química, Edificio de Ciencias Experimentais, Universidade de Vigo , 36310 Vigo (Galicia), Spain
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El-Tarhuni S, Manhães LM, Morrill C, Raftery J, Randhawa JK, Whiteley MW. Synthesis of cyclopentadienyl iron alkoxycarbene complexes via vinylidene intermediates: X-ray structures of [Fe{C(OMe)Me}(dppe)Cp][I] and [Fe{C(CH2)3O}(dppe)Cp][PF6]. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.03.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Albertin G, Antoniutti S, Bortoluzzi M, Botter A, Castro J, Sibilla F. Preparation of diazoalkane complexes of iron(ii). RSC Adv 2016. [DOI: 10.1039/c6ra22051g] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The preparation of diazoalkane complexes of iron(ii) and their reactivity toward acrylonitrile are described.
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- 30172 Mestre Venezia
- Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- 30172 Mestre Venezia
- Italy
| | - Marco Bortoluzzi
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- 30172 Mestre Venezia
- Italy
| | - Alessandra Botter
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- 30172 Mestre Venezia
- Italy
| | - Jesús Castro
- Departamento de Química Inorgánica
- Universidade de Vigo
- Facultade de Química
- Edificio de Ciencias Experimentais
- 36310 Vigo (Galicia)
| | - Francesca Sibilla
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- 30172 Mestre Venezia
- Italy
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Albertin G, Antoniutti S, Forcolin M, Gasparato D. Preparation of half-sandwich diazoalkane complexes of osmium. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.11.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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García-de la Arada I, Díez J, Gamasa M, Lastra E. Alkyne activation by half–sandwich ruthenium(II) complex [RuCl(η5-C9H7){P(OEt)3}(PPh3)]. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.07.039] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Albertin G, Antoniutti S, Bortoluzzi M, Castro J, Marzaro L. Diazoalkane complexes of ruthenium with tris(pyrazolyl)borate and bis(pyrazolyl)acetate ligands. Dalton Trans 2015; 44:15470-80. [PMID: 26237267 DOI: 10.1039/c5dt02113h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Diazoalkane complexes [Ru(Tp)(N2CAr1Ar2)(PPh3)L]BPh4 ( and ) [Tp = tris(pyrazolyl)borate; L = P(OMe)3, P(OEt)3; Ar1 = Ar2 = Ph; Ar1 = Ph, Ar2 = p-tolyl; Ar1Ar2 = C12H8] were prepared by allowing chloro-compounds RuCl(Tp)(PPh3)L to react with diazoalkane in the presence of NaBPh4. Acrylonitrile CH2[double bond, length as m-dash]C(H)CN reacts with diazoalkane complexes to give 3H-pyrazole derivatives [Ru(Tp){N[double bond, length as m-dash]NC(Ar1Ar2)CH(CN)CH2}(PPh3){P(OMe)3}]BPh4 and [Ru(Tp){N[double bond, length as m-dash]NC(Ar1Ar2)CH2C(H)CN}(PPh3){P(OMe)3}]BPh4 (). Diazoalkane complexes [Ru(bpza)(N2CAr1Ar2)(PPh3)2]BPh4 () [bpza = bis(pyrazolyl)acetate] were also prepared. All complexes were characterised by IR and NMR spectroscopy and X-ray crystal structure determination of [Ru(Tp){N2C(Ph)(p-tolyl)}(PPh3){P(OMe)3}]BPh4 (). The differences exhibited by [Ru(Tp){N2C(Ph)(p-tolyl)}(PPh3){P(OMe)3}](+) and [Ru(Cp){N2C(Ph)(p-tolyl)}(PPh3){P(OMe)3}](+), as regards coordination of the diazoalkane ligand and reactivity towards alkenes, were explained on the basis of a comparative DFT study.
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi, Università Ca' Foscari Venezia, Dorsoduro 2137, 30123 Venezia, Italy.
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