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Zars E, Gravogl L, Gau M, Carroll PJ, Meyer K, Mindiola DJ. Iron(II) Mediated Deazotation of Benzyl Azide: Trapping and Subsequent Transformations of the Benzaldimine Fragment. Inorg Chem 2022; 61:1079-1090. [PMID: 34978453 DOI: 10.1021/acs.inorgchem.1c03243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The mono-benzaldimine (HN═CHPh) complex [(tBupyrpyrr2)Fe(HN═CHPh)] (1-HN═CHPh) has been prepared by reaction of [(tBupyrpyrr2)Fe(OEt2)] (1-OEt2) (tBupyrpyrr2 = 2,6-bis(3,5-di-tert-butyl-pyrrolyl)pyridine) with one equivalent of benzyl azide. Compound 1-HN═CHPh retains the cis-divacant octahedral coordination geometry akin to 1, as established by single crystal X-ray diffraction study. A bis-HN═CHPh complex [(tBupyrpyrr2)Fe(HN═CHPh)2] (2) was also prepared by the addition of two equivalents of benzyl azide to 1, and its molecular structure exhibits the two HN═CHPh ligands coordinated trans to each other, thereby forming a square pyramidal coordination geometry at the FeII center. Reaction of 1 with excess benzyl azide yields [(tBupyrpyrr2)Fe(HN═CHPh)2·PhCHNCH(NH2)Ph] (2-PhCHNCH(NH2)Ph), which contains an unstable benzylideneamino phenyl methanamine fragment, effectively hydrogen bonded to 2. Thermolysis of 2 or 2-PhCHNCH(NH2)Ph releases the HN═CHPh self-coupling products hydrobenzamide (A), N-benzylidine benzylamine (B), and benzonitrile (C). Under catalytic conditions, free HN═CHPh (cis/trans-HN═CHPh mixture) is produced using 2.5 mol % of 1 in 90% spectroscopic yield. These studies provide a clearer understanding for the conversion of the HN═CHPh in 2 or 2-PhCHNCH(NH2)Ph to the C-C and C-N coupled products. Reduction of 1-HN═CHPh with KC8 yields the reductively coupled benzylamide complex [K(OEt2)]2[(tBupyrpyrr2)2Fe2(μ2-NHCHPhCHPhNH)] (3) as the result of a new C-C bond formed between two radical benzylamide fragments.
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Affiliation(s)
- Ethan Zars
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Lisa Gravogl
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Egerlandstr. 1, Erlangen 91058, Germany
| | - Michael Gau
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Patrick J Carroll
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
| | - Karsten Meyer
- Friedrich-Alexander-University Erlangen-Nürnberg (FAU), Department of Chemistry and Pharmacy, Inorganic Chemistry, Egerlandstr. 1, Erlangen 91058, Germany
| | - Daniel J Mindiola
- Department of Chemistry, University of Pennsylvania, Philadelphia, Pennsylvania 19104, United States
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2
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Zhou H, Bai T, Pan Y, Wei Y, Wang T. Facile synthesis of air-stable heterobimetallic osmium-silver hydride complexes. Dalton Trans 2021; 50:12093-12097. [PMID: 34519739 DOI: 10.1039/d1dt02619d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The synthesis and characterization of air-stable heterobimetallic Os-Ag hydrides are described. All of the new heterobimetallic Os-Ag hydrides are neutral, and the in situ generated and presynthesized cis-[Os](H)-CC-R units in these frameworks act as organometallic bidentate chelating ligands coordinating with the AgPPh3 cation, which makes these complexes more stable. Our results provide a new synthetic route for the construction of stable heterobimetallic complexes.
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Affiliation(s)
- Haiyu Zhou
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Tongtong Bai
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Yanlin Pan
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Yongliang Wei
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
| | - Tongdao Wang
- Zhang Dayu School of Chemistry, Dalian University of Technology, Dalian 116024, P. R. China.
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3
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Albertin G, Antoniutti S, Bortoluzzi M, Castro J. Preparation and crystal structure of the boranehydrazine complex [RuCl(κ1-NH2NH2BPh3){P(OEt)3}4]BPh4. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.04.044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Hakey BM, Darmon JM, Akhmedov NG, Petersen JL, Milsmann C. Reactivity of Pyridine Dipyrrolide Iron(II) Complexes with Organic Azides: C–H Amination and Iron Tetrazene Formation. Inorg Chem 2019; 58:11028-11042. [PMID: 31364852 DOI: 10.1021/acs.inorgchem.9b01560] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Brett M. Hakey
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, West Virginia 26506, United States
| | - Jonathan M. Darmon
- Department of Chemistry, Princeton University, Princeton, New Jersey 08544, United States
| | - Novruz G. Akhmedov
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, West Virginia 26506, United States
| | - Jeffrey L. Petersen
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, West Virginia 26506, United States
| | - Carsten Milsmann
- C. Eugene Bennett Department of Chemistry, West Virginia University, 100 Prospect Street, Morgantown, West Virginia 26506, United States
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Albertin G, Antoniutti S, Castro J. Preparation and Reactivity of Mixed-Ligands Hydride Complexes [RuHCl(CO)(PPh 3
) 2
{P(O R
) 3
}]. Z Anorg Allg Chem 2019. [DOI: 10.1002/zaac.201900037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi DSMN; Università Ca' Foscari Venezia, Campus Scientifico; Via Torino 155 30172 Venezia Mestre Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi DSMN; Università Ca' Foscari Venezia, Campus Scientifico; Via Torino 155 30172 Venezia Mestre Italy
| | - Jesús Castro
- Departamento de Química Inorgánica; Facultade de Química; Universidade de Vigo; Edificio de Ciencias Experimentais 36310 Vigo Galicia Spain
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Albertin G, Antoniutti S, Castro J, Sibilla F. Reactions of Organic Azides with Half-sandwich Complexes of Iridium: Preparation of Mono- and Bis(imine) Derivatives. Z Anorg Allg Chem 2019. [DOI: 10.1002/zaac.201800516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [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 DSMN; Università Ca' Foscari Venezia, Campus Scientifico; Via Torino 155 30172 Venezia Mestre Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi DSMN; Università Ca' Foscari Venezia, Campus Scientifico; Via Torino 155 30172 Venezia Mestre Italy
| | - Jesús Castro
- Departamento de Química Inorgánica; Facultade de Química; Universidade de Vigo; 36310 Vigo Galicia Spain
| | - Francesca Sibilla
- Dipartimento di Scienze Molecolari e Nanosistemi DSMN; Università Ca' Foscari Venezia, Campus Scientifico; Via Torino 155 30172 Venezia Mestre Italy
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Albertin G, Antoniutti S, Castro J, Gasparetto G. Pentamethylcyclopentadienyl half-sandwich hydrazine complexes of ruthenium: preparation and reactivity. NEW J CHEM 2019. [DOI: 10.1039/c8nj06019c] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation and selective oxidation of hydrazine complexes of ruthenium stabilised by a pentamethylcyclopentadienyl fragment are described. The formation of the sandwich complex [Ru(η5-C5Me5)(η6-C6H6)]BPh4 through the oxidation of coordinate phenylhydrazine is also reported.
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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
| | - Jesús Castro
- Departamento de Química Inorgánica
- Universidade de Vigo
- Facultade de Química
- Edificio de Ciencias Experimentais
- 36310 Vigo (Galicia)
| | - Giulia Gasparetto
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca' Foscari Venezia
- 30172 Mestre Venezia
- Italy
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9
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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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11
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Ruthenium Complexes for Catalytic Dehydrogenation of Hydrazine and Transfer Hydrogenation Reactions. Chem Asian J 2018; 13:1424-1431. [DOI: 10.1002/asia.201800315] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Revised: 03/21/2018] [Indexed: 11/07/2022]
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12
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13
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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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14
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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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15
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Zumeta I, Mendicute-Fierro C, Bustos I, Huertos MA, Rodríguez-Diéguez A, Seco JM, San Sebastian E, Garralda MA. Irida-β-ketoimines Derived from Hydrazines To Afford Metallapyrazoles or N-N Bond Cleavage: A Missing Metallacycle Disclosed by a Theoretical and Experimental Study. Inorg Chem 2016; 55:10284-10293. [PMID: 27689907 DOI: 10.1021/acs.inorgchem.6b01550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Unprecedented metallapyrazoles [IrH2{Ph2P(o-C6H4)CNNHC(o-C6H4)PPh2}] (3) and [IrHCl{Ph2P(o-C6H4)CNNHC(o-C6H4)PPh2}] (4) were obtained by the reaction of the irida-β-ketoimine [IrHCl{(PPh2(o-C6H4CO))(PPh2(o-C6H4CNNH2))H}] (2) in MeOH heated at reflux in the presence and absence of KOH, respectively. In solution, iridapyrazole 3 undergoes a dynamic process due to prototropic tautomerism with an experimental barrier for the exchange of ΔGcoal⧧ = 53.7 kJ mol-1. DFT calculations agreed with an intrapyrazole proton transfer process assisted by two water molecules (ΔG = 63.1 kJ mol-1). An X-ray diffraction study on 4 indicated electron delocalization in the iridapyrazole ring. The reaction of the irida-β-diketone [IrHCl{(PPh2(o-C6H4CO))2H}] (1) with H2NNRR' in aprotic solvents gave irida-β-ketoimines [IrHCl{(PPh2(o-C6H4CO))(PPh2(o-C6H4CNNRR'))H}] (R = R' = Me (5); R = H, R' = Ph (8)), which can undergo N-N bond cleavage to afford the acyl-amide complex [IrHCl(PPh2(o-C6H4CO))(PPh2(o-C6H4C(O)N(CH3)2))-κP,κO] (6) or [IrHCl(PPh2(o-C6H4CO))(PPh2(o-C6H4CN)-κP)(NH2NHPh-κNH2)] (9) containing o-(diphenylphosphine)benzonitrile and phenylhydrazine, respectively. From a CH2Cl2/CH3OH solution of 9 kept at -18 °C, single crystals of [IrHCl(PPh2(o-C6H4CO))(PPh2(o-C6H4CN)-κP))(HN═NPh-κNH)] (10) containing o-(diphenylphosphine)benzonitrile and phenyldiazene were formed, as shown by X-ray diffraction. The reaction of 1 with methylhydrazine in methanol gave the hydrazine complex [IrCl(PPh2(o-C6H4CO))2(NH2NH(CH3)-κNH2)] (7). Single-crystal X-ray diffraction analysis was performed on 6 and 7.
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Affiliation(s)
- Itziar Zumeta
- Facultad de Química de San Sebastián, Universidad del País Vasco (UPV/EHU) , Apdo. 1072, 20080 San Sebastián, Spain
| | - Claudio Mendicute-Fierro
- Facultad de Química de San Sebastián, Universidad del País Vasco (UPV/EHU) , Apdo. 1072, 20080 San Sebastián, Spain
| | - Itxaso Bustos
- Facultad de Química de San Sebastián, Universidad del País Vasco (UPV/EHU) , Apdo. 1072, 20080 San Sebastián, Spain
| | - Miguel A Huertos
- Facultad de Química de San Sebastián, Universidad del País Vasco (UPV/EHU) , Apdo. 1072, 20080 San Sebastián, Spain.,Ikerbasque, Basque Foundation for Science , 48013 Bilbao, Spain
| | | | - José M Seco
- Facultad de Química de San Sebastián, Universidad del País Vasco (UPV/EHU) , Apdo. 1072, 20080 San Sebastián, Spain
| | - Eider San Sebastian
- Facultad de Química de San Sebastián, Universidad del País Vasco (UPV/EHU) , Apdo. 1072, 20080 San Sebastián, Spain
| | - María A Garralda
- Facultad de Química de San Sebastián, Universidad del País Vasco (UPV/EHU) , Apdo. 1072, 20080 San Sebastián, Spain
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16
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Albertin G, Antoniutti S, Bortoluzzi M, Botter A, Castro J. Reactivity of vinylidene complexes of ruthenium with hydrazines and hydroxylamines. Dalton Trans 2015; 44:3439-46. [DOI: 10.1039/c4dt03464c] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Reaction of vinylidene complexes of Ru with hydrazines and hydroxylamines affords nitrile derivatives and amine or water. A reaction path based on 15N NMR studies and DFT calculations is proposed.
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Affiliation(s)
- Gabriele Albertin
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari Venezia
- 30123 Venezia
- Italy
| | - Stefano Antoniutti
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari Venezia
- 30123 Venezia
- Italy
| | - Marco Bortoluzzi
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari Venezia
- 30123 Venezia
- Italy
| | - Alessandra Botter
- Dipartimento di Scienze Molecolari e Nanosistemi
- Università Ca’ Foscari Venezia
- 30123 Venezia
- Italy
| | - Jesús Castro
- Departamento de Química Inorgánica
- Universidade de Vigo
- Facultade de Química
- Edificio de Ciencias Experimentais
- 36310 Vigo
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Albertin G, Antoniutti S, Botter A, Castro J. Hydrazine complexes of ruthenium with cyclopentadienyl and indenyl ligands: Preparation and reactivity. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.09.018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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18
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Albertin G, Antoniutti S, Castro J, Siddi S. Preparation of diethylcyanamide and cyanoguanidine complexes of manganese and rhenium. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.05.028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Albertin G, Antoniutti S, Caia A, Castro J. Preparation and reactivity towards hydrazines of bis(cyanamide) and bis(cyanoguanidine) complexes of the iron triad. Dalton Trans 2014; 43:7314-23. [PMID: 24691705 DOI: 10.1039/c4dt00394b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Bis(diethylcyanamide) [Fe(N≡CNEt2)2L4](BPh4)2 1a and bis(cyanoguanidine) [Fe{N≡CN(H)C(NH2)=NH}2L4](BPh4)2 1b [L = P(OEt)3] complexes were prepared by allowing iron(II) chloride to react first with an excess of P(OEt)3 and then of the appropriate cyanamide, followed by addition of an excess of NaBPh4. Instead, bis(complexes) of ruthenium and osmium [M(N≡CNEt2)2L4](BPh4)2 2a, 3a and [M{N≡CN(H)C(NH2)=NH}2L4](BPh4)2 2b, 3b (M = Ru 2, Os 3) were prepared by reacting hydrides MH2L4 first with either triflic acid HOTf or methyltriflate MeOTf and then with an excess of the appropriate cyanamide. Hydride-diethylcyanamide [MH(N≡CNEt2)L4]BPh4 4a, 5a and hydride-cyanoguanidine complexes [MH{N≡CN(H)C(NH2)=NH}L4](BPh4)2 4b, 5b (M = Ru 4, Os 5) were also obtained by reacting MH2L4 first with one equivalent of HOTf or MeOTf and then with the appropriate cyanamide. Treatment of bis(cyanamide) and bis(cyanoguanidine) complexes 1-3 with hydrazines RNHNH2 afforded hydrazinecarboximidamide derivatives [M{η(2)-N(H)=C(NEt2)N(R)NH2}L4](BPh4)2 6a-12a and [M{η(2)-N(H)=C[N=C(NH2)2]N(R)NH2}L4](BPh4)2 6b-12b (M = Fe 6-8, Ru 9, 10, Os 11, 12; R = H 6, 9, 11, Me 7, 10, 12, Ph 8). A reaction path involving nucleophilic attack by hydrazine on the cyanamide carbon atom is proposed. All the complexes were characterised by spectroscopy and X-ray crystal structure determination of [Os{η(2)-NH=C[N=C(NH2)2]N(CH3)NH2}{P(OEt)3}4](BPh4)2 12b.
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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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Schreiber DF, O’Connor C, Grave C, Müller-Bunz H, Scopelliti R, Dyson PJ, Phillips AD. Synthesis, Characterization, and Reactivity of the First Osmium β-Diketiminato Complexes and Application in Catalysis. Organometallics 2013. [DOI: 10.1021/om400875r] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Dominique F. Schreiber
- School of Chemistry & Chemical Biology, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Crystal O’Connor
- School of Chemistry & Chemical Biology, University College Dublin (UCD), Belfield, Dublin 4, Ireland
- SFI Strategic Research Cluster in Solar Energy
Conversion, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Christian Grave
- School of Chemistry & Chemical Biology, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Helge Müller-Bunz
- School of Chemistry & Chemical Biology, University College Dublin (UCD), Belfield, Dublin 4, Ireland
| | - Rosario Scopelliti
- Institut des Sciences
et Ingénierie
Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1014 Lausanne, Switzerland
| | - Paul J. Dyson
- Institut des Sciences
et Ingénierie
Chimiques, Ecole Polytechnique Fédérale de Lausanne (EPFL), 1014 Lausanne, Switzerland
| | - Andrew D. Phillips
- School of Chemistry & Chemical Biology, University College Dublin (UCD), Belfield, Dublin 4, Ireland
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Pinter B, Urankar D, Pevec A, De Proft F, Košmrlj J. Platinum-Mediated Dinitrogen Liberation from 2-Picolyl Azide through a Putative Pt═N Double Bond Containing Intermediate. Inorg Chem 2013; 52:4528-33. [DOI: 10.1021/ic302834e] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Balazs Pinter
- Eenheid Algemene Chemie (ALGC), Member
of the QCMM VUB-UGent Alliance Research Group, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels,
Belgium
| | - Damijana Urankar
- Faculty of Chemistry
and Chemical Technology, University of Ljubljana, Aškerčeva 5, Ljubljana, Slovenia
| | - Andrej Pevec
- Faculty of Chemistry
and Chemical Technology, University of Ljubljana, Aškerčeva 5, Ljubljana, Slovenia
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Member
of the QCMM VUB-UGent Alliance Research Group, Vrije Universiteit Brussel, Pleinlaan 2, B-1050 Brussels,
Belgium
| | - Janez Košmrlj
- Faculty of Chemistry
and Chemical Technology, University of Ljubljana, Aškerčeva 5, Ljubljana, Slovenia
| |
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