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Muñoz-Hernández MÁ, García OJ, Velázquez-Carmona MÁ, Cortés-Llamas SA. Synthesis and characterization of discrete lithium bis(pyrazolyl)dialkylaluminates displaying a (C H)⋯Li interaction. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115859] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Rad NE, Junk PC, Deacon GB, Taidakov IV, Wang J. Synthesis and Structural Characterisation of Lithium, Zinc, and Aluminium Pyrazolate Complexes. Aust J Chem 2020. [DOI: 10.1071/ch19417] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The reaction of nBuLi with 3,5-dimethylpyrazole (Me2pzH) in Et2O or tmeda/hexane (tmeda=N,N,N′,N′-tetramethylethane-1,2-diamine) and with 3,5-dimethyl-4-nitropyrazolate (Me2pzHNO2) in THF results in the formation of three structurally diverse lithium pyrazolates: namely an Et2O-solvated tetrameric complex [Li4(Me2pz)4(OEt2)4], bridged entirely with μ-η2:η1-pyrazolate bonding, a hexanuclear complex [Li6(Me2pz)6(tmeda)2] with four different coordination modes (μ-η1:η1, μ-η2:η1, μ3-η1:η2:η1 and μ3-η2:η2:η1), and a new polymeric compound [Li2(Me2pzNO2)2(thf)2]n, with [Li2(Me2pzNO2)2(thf)2] groups linked by –NO2 coordination. A mononuclear zinc complex [Zn(tBu2pz)2(tBu2pzH)2].1/2THF (tBu2pzH=3,5-di-tert-butylpyrazole) was prepared by reaction of tBu2pzH with ZnEt2, unidentate tBu2pz groups being stabilised by N–H⋯N hydrogen bonding. Treatment of 3,5-diphenylpyrazole (Ph2pzH) with trimethylaluminium (mole ratio 3:1) in THF led to the formation of dinuclear [AlMe2(μ-Ph2pz)]2.1/2THF.
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Aluminum Dimer Containing Bulky 1,2,3-Triazolate Ligand. J CHEM-NY 2014. [DOI: 10.1155/2014/619196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The first molecular aluminum 1,2,3-triazolato complex was synthesized bearing a bulky 1,2,3-triazolate ligand. Oligomers and polymers were avoided due to the bulkiness and noncoordinating nature of the substituents. The novel Al2N4ring formed contains symmetrical Al-N bond distances unexpectedly having asymmetric Al-N-N angles of 144.55(15)° and 115.83(14)°. This asymmetry demonstrates the effect of the steric hindrance of the ligand.
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Hamidi S, Dietrich HM, Werner D, Jende LN, Maichle-Mössmer C, Törnroos KW, Deacon GB, Junk PC, Anwander R. Organoaluminum and -gallium Formamidinate Complexes. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201201515] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Weiss CJ, Marks TJ. Organozirconium Complexes as Catalysts for Markovnikov-Selective Intermolecular Hydrothiolation of Terminal Alkynes: Scope and Mechanism. J Am Chem Soc 2010; 132:10533-46. [DOI: 10.1021/ja103979b] [Citation(s) in RCA: 88] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Charles J. Weiss
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208
| | - Tobin J. Marks
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208
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Alcántara-García J, Jancik V, Barroso J, Hidalgo-Bonilla S, Cea-Olivares R, Toscano RA, Moya-Cabrera M. Coordination Diversity of Aluminum Centers Molded by Triazole Based Chalcogen Ligands. Inorg Chem 2009; 48:5874-83. [DOI: 10.1021/ic900166u] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jocelyn Alcántara-García
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510, México D.F., México
| | - Vojtech Jancik
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510, México D.F., México
| | - Joaquín Barroso
- Centro de investigación en Polímeros, Grupo COMEX, Marcos Achar Lobatón 2, 55885 Tepexpan, México
| | - Sandra Hidalgo-Bonilla
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510, México D.F., México
| | - Raymundo Cea-Olivares
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510, México D.F., México
| | - Rubén A. Toscano
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510, México D.F., México
| | - Mónica Moya-Cabrera
- Instituto de Química, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, 04510, México D.F., México
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