1
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Cabeza JA, Reynes JF, García F, García-Álvarez P, García-Soriano R. Fast and scalable solvent-free access to Lappert's heavier tetrylenes E{N(SiMe 3) 2} 2 (E = Ge, Sn, Pb) and ECl{N(SiMe 3) 2} (E = Ge, Sn). Chem Sci 2023; 14:12477-12483. [PMID: 38020393 PMCID: PMC10646885 DOI: 10.1039/d3sc02709k] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 11/03/2023] [Accepted: 09/24/2023] [Indexed: 12/01/2023] Open
Abstract
Iconic Lappert's heavier tetrylenes E{N(SiMe3)2}2 (E = Ge (1), Sn (2), Pb (3)) have been efficiently prepared from GeCl2·(1,4-dioxane), SnCl2 or PbCl2 and Li{N(SiMe3)2} via a completely solvent-free one-pot mechanochemical route followed by sublimation. This fast, high-yielding and scalable approach (2 has been prepared in a 100 mmol scale), which involves a small environmental footprint, represents a remarkable improvement over any synthetic route reported over the last five decades, being a so far rare example of the use of mechanochemistry in the realm of main group chemistry. This solventless route has been successfully extended to the preparation of other heavier tetrylenes, such as ECl{N(SiMe3)2} (E = Ge (4), Sn (5)).
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Affiliation(s)
- Javier A Cabeza
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
| | - Javier F Reynes
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
| | - Felipe García
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
- School of Chemistry, Monash University Clayton Victoria 3800 Australia
| | - Pablo García-Álvarez
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
| | - Rubén García-Soriano
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Centro de Innovación en Química Avanzada (ORFEO-CINQA) Universidad de Oviedo 33071 Oviedo Spain
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2
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Chlupatý T, Růžičková Z, Kampová H, Merna J, Růžička A. Lithium, Magnesium, and Zinc Centers N,N'-Chelated by an Amine-Amide Hybrid Ligand. Inorg Chem 2022; 61:9392-9404. [PMID: 35706334 DOI: 10.1021/acs.inorgchem.1c03850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The synthesis and structure of lithium, magnesium, and zinc complexes N,N'-chelated by a hybrid amine-amido ligand ([2-(Me2NCH2)C6H4NR]-, abbreviated as LNR, where R = H, SiMe3, or Bn) are reported. The reaction of the least sterically demanding LNH with various magnesium sources gives the hexameric imide [LNMg]6 (4) by the elimination of n-butane from LNHMgnBu (2) or by the reaction of LNHLi (1) with MeMgBr. [LNH]2Mg (3) is obtained through the addition of 0.5 equiv of nBu2Mg or Mg[N(SiMe3)2]2 to LNH2 and with 1 equiv of nBu2Mg reacting to 2. Both LNHMgN(SiMe3)2 (6) and isostructural LNHZnN(SiMe3)2 (16) have been prepared using two different approaches: monodeprotonation of LNH2 by Zn/Mg[N(SiMe3)2]2 in a 1:1 ratio or ligand substitution of 2 or LNHZnEt (12) by 0.5 equiv of Sn[N(SiMe3)2]2. The reactions of 2 or 3 with 1 provide the heterotrimetallic complex [LNH]4Li2Mg (5). Benzyl- or trimethylsilyl-substituted anilines [LN(SiMe3)H (7) and LN(Bn)H (8)] with 0.5 equiv of nBu2Mg allow the formation of homoleptic bis(amides) of the [LN(R)]2Mg type (10 and 11). Nevertheless, only the silylated secondary amine 7 is able to provide the heteroleptic n-butylmagnesium amide LN(SiMe3)MgnBu (9) upon reaction with an equimolar amount of nBu2Mg. Similarly, 12, [LNH]2Zn (13), LN(R)ZnEt (17 and 18), and [LN(R)]2Zn [R = SiMe3 (19) and Bn (20)] were prepared by the monodeprotonation of LNH2 or LN(R)H using Et2Zn in the corresponding stoichiometric ratio. LNHZnI was prepared by the nucleophilic substitution of an ethyl chain in 12 by molecular iodine. A heterometallic complex, [LNH]4Li2Zn (14), analogous to 5 was prepared from 12 or 13 with 1 or 2 equiv of 1, respectively.
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Affiliation(s)
- Tomáš Chlupatý
- Faculty of Chemical Technology, Department of General and Inorganic Chemistry, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Zdeňka Růžičková
- Faculty of Chemical Technology, Department of General and Inorganic Chemistry, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Hana Kampová
- Faculty of Chemical Technology, Department of General and Inorganic Chemistry, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Jan Merna
- Faculty of Chemical Technology, Department of Polymers, University of Chemistry and Technology, Technická 5, CZ-166 28 Prague 6, Czech Republic
| | - Aleš Růžička
- Faculty of Chemical Technology, Department of General and Inorganic Chemistry, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
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Chlupatý T, Nevoralová J, Růžičková Z, Růžička A. Lithium and Dilithium Guanidinates, a Starter Kit for Metal Complexes Containing Various Mono- and Dianionic Ligands. Inorg Chem 2020; 59:10854-10865. [PMID: 32650639 DOI: 10.1021/acs.inorgchem.0c01362] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Comparative studies of the synthesis of lithium guanidinates via nucleophilic addition of lithium amides to carbodiimides were performed. Four combinations of small or sterically crowded carbodiimide and sterically crowded lithium amide or lithium amide containing an adjacent amino donor group give ten different types of complexes. In particular, 2,6-[(CH3)2CH]2C6H3NHLi (DipNHLi, 1) reacts with (CH3)2CHN═C═NCH(CH3)2 upon the formation of the dissymmetric dimeric complex 2 with four-coordinate Li atoms. In contrast, 1 with DipN═C═NDip gives the mononuclear lithium guanidinate 3 with two-coordinate lithium by κ1-guanidinate, solvent molecule, and additional interaction with a π-electron cloud of one of the Dip groups. Analogous reactions of 2-[(CH3)2NCH2]C6H4NHLi (7) yield complexes 8 and 9, where the adjacent amino donors are always coordinated. Further deprotonation of 2, 3, 8, and 9 leads to dilithium guanidinates(2-)-4, 5, 10, and 11, among which only 5, containing three Dip groups, is monomeric with contacts to two π-electron systems of Dip groups. The rest of the complexes are tetranuclear with different structural patterns. In the central parts of molecules, toward which the nitrogen atoms of the guanidinates are oriented, lithium atoms are usually pseudotetrahedral, but trigonal in peripheral parts. Adjacent solvent molecules, chelating amino groups, and π-electron systems of Dip groups are coordinated in order to complete coordination polyhedra. Complexes 4 and 5 deoligomerize in solution upon the formation of fluxional monomeric dilithium species. Conversely, 11 is a dimer in solution due to the strong donation of an amino group. The silylated lithium amide {2-[(CH3)2NCH2]C6H4}[(Si(CH3)3]NLi (12) reacts with both carbodiimides to give dinuclear 13 obtained from diisopropylcarbodiimide and monomeric 14 from the second carbodiimide. Complexes 13 and 14 structurally resemble 8 and 9, with the highest degree of the localization of π-electron density within the N3C guanidinate system, η3-contact to the Dip ring, and a lack of the solvent molecule in 14.
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Affiliation(s)
- Tomáš Chlupatý
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Jana Nevoralová
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Zdeňka Růžičková
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
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4
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Schulz A, Thomas M, Villinger A. Synthesis and Structure of Bismuth–Nitrogen Cage Compounds and Heterocubanes: [Cl-Bi(μ 3-N-TMP)] 4: A Dimer of a 1,3-Dichloro- cyclo-dibismadiazane. Inorg Chem 2020; 59:3344-3352. [DOI: 10.1021/acs.inorgchem.9b03221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Axel Schulz
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany
- Leibniz-Institut für Katalyse an der Universität Rostock, Albert-Einstein-Straße 29a, 18059 Rostock, Germany
| | - Max Thomas
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany
| | - Alexander Villinger
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany
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5
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Someşan AA, Roisnel T, Dorcet V, Silvestru C, Sarazin Y. Aminofluoroalkoxide amido and boryloxo lead(ii) complexes. Dalton Trans 2019; 48:9944-9948. [PMID: 31231734 DOI: 10.1039/c9dt02110h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report here on the utilisation of a readily available bidentate aminofluoroalkoxide in lead(ii) chemistry. Stable heteroleptic three-coordinate complexes can be produced in high yields, including a convenient amido synthetic precursor and a rare case of PbII-boryloxide.
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Affiliation(s)
- Adrian-Alexandru Someşan
- Supramolecular Organic and Organometallic Chemistry Centre, Chemistry Department, Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, RO-400028 Cluj-Napoca, Romania.
| | - Thierry Roisnel
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Vincent Dorcet
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
| | - Cristian Silvestru
- Supramolecular Organic and Organometallic Chemistry Centre, Chemistry Department, Faculty of Chemistry and Chemical Engineering, Babes-Bolyai University, RO-400028 Cluj-Napoca, Romania.
| | - Yann Sarazin
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes) - UMR 6226, F-35000 Rennes, France.
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6
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Duan XE, Tong HB, Wei XH, Shi HP, Bai SD, Bai T, Zhang J, Zhang YB, Liu DS. Coordination reactions of 2-pyridinecarboxaldehyde-phenylhydrazonatolithium with selected transition metal (Zn, Sn, Fe, Co, Ni and Zr) chlorides and its coupling reaction with dichloromethane. Dalton Trans 2016; 45:11061-70. [PMID: 27327837 DOI: 10.1039/c6dt01183g] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of 2-pyridinecarboxaldehyde-phenylhydrazonatolithium C5H4Npy-CH[double bond, length as m-dash]Ni-NaLi(Ph) (abbreviated as Li) with a 1/2 equivalent of anhydrous metal (Zn, Sn, Fe and Co) chlorides or NiCl2(DME) (DME = 1, 2-dimethoxyethane) produced the corresponding mononuclear metal(ii) complexes ( and ), in which each ligand acts as a bidentate ligand and the coordination geometries around the metals are shown to be tetrahedral within the complexes , , and , respectively, and a tetragonal pyramid in the complex . The reaction of Li successively with sodium tert-butoxide and anhydrous ZrCl4 afforded the unanticipated bizirconium complex , in which each monoanionic ligand behaves as a tridentate bridge. Whereas treatment of Li with NiCl2 and then CH2Cl2 led to an interesting methylene-bridged bis(2-pyridyl-phenylhydrazone) compound in moderate yield; a comparative experiment showed that when the Li reacted with CH2Cl2, the coupling compound was also obtained but in very low yield. A plausible mechanism of compound formation was also proposed and supported by the density functional theory (DFT) calculations. All the synthesized compounds were characterized by single-crystal X-ray diffraction.
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Affiliation(s)
- Xin-E Duan
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, P. R. China.
| | - Hong-Bo Tong
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China.
| | - Xue-Hong Wei
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, P. R. China.
| | - He-Ping Shi
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, P. R. China.
| | - Sheng-Di Bai
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China.
| | - Tao Bai
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, 030006, P. R. China.
| | - Jing Zhang
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China.
| | - Yong-Bin Zhang
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China.
| | - Dian-Sheng Liu
- Institute of Applied Chemistry, Shanxi University, Taiyuan 030006, P. R. China.
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7
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Schneider J, Krebs KM, Freitag S, Eichele K, Schubert H, Wesemann L. Intramolecular Tetrylene Lewis Adducts: Synthesis and Reactivity. Chemistry 2016; 22:9812-26. [DOI: 10.1002/chem.201601224] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Julia Schneider
- Institut für Anorganische Chemie; Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Kilian M. Krebs
- Institut für Anorganische Chemie; Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Sarah Freitag
- Institut für Anorganische Chemie; Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Klaus Eichele
- Institut für Anorganische Chemie; Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Hartmut Schubert
- Institut für Anorganische Chemie; Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
| | - Lars Wesemann
- Institut für Anorganische Chemie; Universität Tübingen; Auf der Morgenstelle 18 72076 Tübingen Germany
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8
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Sedlak R, Stasyuk OA, Fonseca Guerra C, Řezáč J, Růžička A, Hobza P. New Insight into the Nature of Bonding in the Dimers of Lappert's Stannylene and Its Ge Analogs: A Quantum Mechanical Study. J Chem Theory Comput 2016; 12:1696-704. [PMID: 26953594 DOI: 10.1021/acs.jctc.6b00065] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The strength and nature of the connection in Lappert's stannylene dimer ({Sn[CH(SiMe3)2]2}2) and its smaller analogs, simplified stannylenes, as well as similar Ge complexes were studied by means of DFT-D3 calculations, energy decomposition analysis (EDA), electrostatic potential (ESP), and natural population analysis. The trans-bent structure of the investigated molecules was rationalized by means of EDA, ESP, and molecular orbital (MO) analyses. The different ESPs for the monomers studied are a result of different hybridization of the Sn (Ge) atoms. The comparably strong stabilization in the largest and the smallest systems with a dramatically different substituent size is explained by the different nature of the binding between monomers. For all complexes, it has been found that the total attractive interaction is mostly provided by the electrostatic component (>50%), followed by orbital interaction and dispersion. In the largest molecule (Lappert's stannylene), the dispersion interaction plays a more significant role in stabilization and its magnitude is comparable to that of orbital interaction; on the other hand in the smallest molecule (SnH2), where bulky substituents are replaced by H only, the dispersion energy is less important and the E-E bond is more of a charge-transfer character, caused by donor-acceptor orbital interactions. The charge transfer in Ge dimers is greater than in the Sn ones due to shorter distances between monomers, which cause better ⟨HOMO/LUMO⟩ overlaps. The easier dimerization of Lappert's stannylene as compared to Kira's ({Sn[(Me3Si)2CHCH2CH2CH(SiMe3)2-κ(2)C,C']}) stannylene is explained by the different orientation of their substituents-asymmetry promotes dimerization.
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Affiliation(s)
- Robert Sedlak
- Institute of Organic Chemistry and Biochemistry , Academy of Sciences of the Czech Republic, 166 10 Prague 6, Czech Republic.,Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacký University , 771 46 Olomouc, Czech Republic
| | - Olga A Stasyuk
- Institute of Organic Chemistry and Biochemistry , Academy of Sciences of the Czech Republic, 166 10 Prague 6, Czech Republic
| | - Célia Fonseca Guerra
- Department of Theoretical Chemistry and Amsterdam Center for Multiscale Modeling, VU Amsterdam , De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Jan Řezáč
- Institute of Organic Chemistry and Biochemistry , Academy of Sciences of the Czech Republic, 166 10 Prague 6, Czech Republic
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice , Studentská 573, CZ-532 10, Pardubice, Czech Republic
| | - Pavel Hobza
- Institute of Organic Chemistry and Biochemistry , Academy of Sciences of the Czech Republic, 166 10 Prague 6, Czech Republic.,Regional Centre of Advanced Technologies and Materials, Department of Physical Chemistry, Palacký University , 771 46 Olomouc, Czech Republic
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9
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Sesmero E, Calatayud DG, Perles J, López‐Torres E, Mendiola MA. The Reactivity of Diphenyllead(IV) Dichloride with Dissymmetric Thiosemicarbazone Ligands: Obtaining Monomers, Coordination Polymers, and an Organoplumboxane. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501245] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ester Sesmero
- Departamento de Química Inorgánica, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049 Madrid, Spain, http://www.uam.es/departamentos/ciencias/qinorg/fpers/lopez_torres.htm
| | - David G. Calatayud
- Laboratorio de Difracción de Rayos X de Monocristal, Servicio Interdepartamental de Investigación, Universidad Autónoma de Madrid C/ Francisco Tomás y Valiente 7, 28049 Madrid, Spain
| | - Josefina Perles
- Laboratorio de Difracción de Rayos X de Monocristal, Servicio Interdepartamental de Investigación, Universidad Autónoma de Madrid C/ Francisco Tomás y Valiente 7, 28049 Madrid, Spain
| | - Elena López‐Torres
- Departamento de Química Inorgánica, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049 Madrid, Spain, http://www.uam.es/departamentos/ciencias/qinorg/fpers/lopez_torres.htm
| | - M. Antonia Mendiola
- Departamento de Química Inorgánica, Universidad Autónoma de Madrid, C/ Francisco Tomás y Valiente 7, 28049 Madrid, Spain, http://www.uam.es/departamentos/ciencias/qinorg/fpers/lopez_torres.htm
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10
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Böserle J, Alonso M, Jambor R, Růžička A, Dostál L. Synthesis and reactivity of a germylene stabilized by a boraguanidinate ligand. RSC Adv 2016. [DOI: 10.1039/c6ra01187j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The reactivity of a germylene stabilized by a boraguanidinate ligand with various reagents is reported.
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Affiliation(s)
- Jiří Böserle
- Department of General and Inorganic Chemistry
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 53210
- Czech Republic
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC)
- Vrije Universiteit Brussel (VUB)
- B-1050 Brussels
- Belgium
| | - Roman Jambor
- Department of General and Inorganic Chemistry
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 53210
- Czech Republic
| | - Aleš Růžička
- Department of General and Inorganic Chemistry
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 53210
- Czech Republic
| | - Libor Dostál
- Department of General and Inorganic Chemistry
- Faculty of Chemical Technology
- University of Pardubice
- Pardubice 53210
- Czech Republic
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11
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Cabeza JA, García-Álvarez P, Polo D. Intramolecularly Stabilized Heavier Tetrylenes: From Monodentate to Bidentate Ligands. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500855] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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12
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Kampová H, Riemlová E, Klikarová J, Pejchal V, Merna J, Vlasák P, Švec P, Růžičková Z, Růžička A. Aluminium complexes containing N,N′-chelating amino-amide hybrid ligands applicable for preparation of biodegradable polymers. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2014.12.010] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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13
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Havlík A, Lamač M, Pinkas J, Růžička A, Horáček M. Mixed amido-cyclopentadienyl group 4 metal complexes. RSC Adv 2015. [DOI: 10.1039/c5ra07742g] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023] Open
Abstract
Two different kinds of nitrogen ligands and two Cp ligands with different electronic and steric effects were employed in order to demonstrate variability of the group 4 metal coordination spheres.
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Affiliation(s)
- Aleš Havlík
- J. Heyrovský Institute of Physical Chemistry
- Academy of Sciences of The Czech Republic
- 182 23 Prague 8
- Czech Republic
- Department of General and Inorganic Chemistry
| | - Martin Lamač
- J. Heyrovský Institute of Physical Chemistry
- Academy of Sciences of The Czech Republic
- 182 23 Prague 8
- Czech Republic
| | - Jiří Pinkas
- J. Heyrovský Institute of Physical Chemistry
- Academy of Sciences of The Czech Republic
- 182 23 Prague 8
- Czech Republic
| | - Aleš Růžička
- Department of General and Inorganic Chemistry
- Faculty of Chemical Technology
- University of Pardubice
- 532 10 Pardubice 2
- Czech Republic
| | - Michal Horáček
- J. Heyrovský Institute of Physical Chemistry
- Academy of Sciences of The Czech Republic
- 182 23 Prague 8
- Czech Republic
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14
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Leung W, Kan K, Chan Y, Mak TCW. Reactivity Study of a Chlorostannylene Derived from Bis(iminophosphoranyl)methane. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402074] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Wing‐Por Leung
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China, http://www.chem.cuhk.edu.hk/faculty_leung_kevin.htm
| | - Kwok‐Wai Kan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China, http://www.chem.cuhk.edu.hk/faculty_leung_kevin.htm
| | - Yuk‐Chi Chan
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China, http://www.chem.cuhk.edu.hk/faculty_leung_kevin.htm
| | - Thomas C. W. Mak
- Department of Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong Kong, China, http://www.chem.cuhk.edu.hk/faculty_leung_kevin.htm
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15
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He G, Shynkaruk O, Lui MW, Rivard E. Small Inorganic Rings in the 21st Century: From Fleeting Intermediates to Novel Isolable Entities. Chem Rev 2014; 114:7815-80. [DOI: 10.1021/cr400547x] [Citation(s) in RCA: 156] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Gang He
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Olena Shynkaruk
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Melanie W. Lui
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta, Canada T6G 2G2
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan
Drive, Edmonton, Alberta, Canada T6G 2G2
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Chia SP, Li Y, Ganguly R, So CW. Heteroleptic Germanium(II) and Tin(II) Chlorides Supported by Anionic Ligands Derived from 2,3-Dimethyl-1,4-diaza-1,3-butadiene. Eur J Inorg Chem 2013. [DOI: 10.1002/ejic.201300830] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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17
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Preparation and structure of tin(IV) catecholates by reactions of C,N-chelated tin(IV) compounds with a catechol or lithium catecholate, and various stannylenes with a quinone. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.07.025] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Maaß C, Andrada DM, Mata RA, Herbst-Irmer R, Stalke D. Effects of Metal Coordination on the π-System of the 2,5-Bis-{(pyrrolidino)-methyl}-pyrrole Pincer Ligand. Inorg Chem 2013; 52:9539-48. [DOI: 10.1021/ic401192x] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | - Diego M. Andrada
- Instituto de Investigaciones en
Físico-químicas de Córdoba, Departamento de Química
Orgánica, Facultad de Ciencias Químicas, Universidad Nacional de Córdoba, Ciudad Universitaria
5016, Córdoba, Argentina
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O,N-Chelated germanium, tin and lead compounds containing 2-[N,N-(dimethylamino)methyl]phenolate as ligand. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.02.033] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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20
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Cabeza JA, García-Álvarez P, Polo D. Expanding the coordination chemistry of donor-stabilized group-14 metalenes. Dalton Trans 2013; 42:1329-32. [PMID: 23160752 DOI: 10.1039/c2dt32654j] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The transformation of an amidinate germylene, equipped with just one accessible lone pair of electrons on the Ge atom, into a bidentate 4-electron donor κ(2)Ge,N-ligand, has been achieved for the first time, opening new doors to the non-carbene-like coordination chemistry of heavier carbene analogues.
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Affiliation(s)
- Javier A Cabeza
- Departamento de Química Orgánica e Inorgánica-IUQOEM, Universidad de Oviedo-CSIC, E-33071 Oviedo, Spain.
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Chlupatý T, Padělková Z, Lyčka A, Brus J, Růžička A. Reactivity of lithium n-butyl amidinates towards group 14 metal(II) chlorides providing series of hetero- and homoleptic tetrylenes. Dalton Trans 2012; 41:5010-9. [PMID: 22415327 DOI: 10.1039/c2dt12472f] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The new class of homo- and heteroleptic n-butyl-N,N'-disubstituted amidinato group 14 metal(II) complexes were prepared by salt elimination from starting lithium amidinates and metal(II) chlorides both in stoichiometric ratio 2:1 and 1:1, respectively. The target amidinates contain less bulky isopropyl or cyclohexyl as well as a sterically demanding aromatic substituent. Desired 1:1 Pb(II) complexes are not accessible by the described procedure. Ligand transfer from Pb to Sn is taking place if homoleptic Pb(II) compounds are reacted with SnCl(2). Prepared tetrylenes were characterized by (1)H, (13)C, (119)Sn and (207)Pb NMR spectroscopy in C(6)D(6) or THF-d(8). X-Ray diffraction studies of one heteroleptic Ge(II) monomeric where the coordination polyhedron of the three coordinated germanium atoms is a trigonal pyramid, two different dimeric structures of heteroleptic Sn(II) complexes, one amidine hydroiodide byproduct and the oxidation product of the heteroleptic chloro Sn(II) amidinate as a tetranuclear species with two Sn(IV) and two Sn(II) atoms in central Sn(2)O(2) planar ring were performed on appropriate single crystals. The dimer of one of the heteroleptic stannylenes reveals a new type of monomeric units connection, weak Sn-Cl contact and an interaction of the tin atom with delocalized N-C(C)-N system of the amidinato ligand of the second molecule.
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Affiliation(s)
- Tomáš Chlupatý
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10, Pardubice, Czech Republic
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22
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Chlupatý T, Padělková Z, DeProft F, Willem R, Růžička A. Addition of Lappert's Stannylenes to Carbodiimides, Providing a New Class of Tin(II) Guanidinates. Organometallics 2012. [DOI: 10.1021/om201118m] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Tomáš Chlupatý
- Department of General and Inorganic Chemistry, Faculty
of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10, Pardubice, Czech Republic
| | - Zdeňka Padělková
- Department of General and Inorganic Chemistry, Faculty
of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10, Pardubice, Czech Republic
| | | | | | - Aleš Růžička
- Department of General and Inorganic Chemistry, Faculty
of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10, Pardubice, Czech Republic
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