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Moulay S. S-methylation of organosulfur substrates: A comprehensive overview. PHOSPHORUS SULFUR 2021. [DOI: 10.1080/10426507.2021.1925672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Saad Moulay
- Laboratoire de Chimie-Physique Moléculaire et Macromoléculaire, Département de Génie des Procédés, Faculté de Technologie, Université Saâd Dahlab de Blida, Blida, Algeria
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Holler S, Tüchler M, Belaj F, Veiros LF, Kirchner K, Mösch-Zanetti NC. Thiopyridazine-Based Copper Boratrane Complexes Demonstrating the Z-type Nature of the Ligand. Inorg Chem 2016; 55:4980-91. [PMID: 27110725 DOI: 10.1021/acs.inorgchem.6b00464] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Stefan Holler
- Institute
of Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
| | - Michael Tüchler
- Institute
of Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
| | - Ferdinand Belaj
- Institute
of Chemistry, University of Graz, Schubertstrasse 1, 8010 Graz, Austria
| | - Luis F. Veiros
- Centro de Química Estrutural, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais No. 1, 1049-001 Lisboa, Portugal
| | - Karl Kirchner
- Institute of Applied Synthetic Chemistry, Vienna University of Technology, Getreidemarkt 9, 1060 Vienna, Austria
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Marckwordt A, Rajasekharan‐Nair R, Steel G, Kennedy AR, Reglinski J, Spicer MD. The First Structurally Characterised Example of Silicon in an S6 Coordination Sphere. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501269] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Annemarie Marckwordt
- Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street G1 1XL Glasgow UK
| | - Rajeev Rajasekharan‐Nair
- Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street G1 1XL Glasgow UK
| | - Graham Steel
- Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street G1 1XL Glasgow UK
| | - Alan R. Kennedy
- Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street G1 1XL Glasgow UK
| | - John Reglinski
- Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street G1 1XL Glasgow UK
| | - Mark D. Spicer
- Department of Pure & Applied Chemistry University of Strathclyde 295 Cathedral Street G1 1XL Glasgow UK
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Rajasekharan-Nair R, Moore D, Kennedy AR, Reglinski J, Spicer MD. The Stability of Mercaptobenzothiazole Based Soft Scorpionate Complexes. Inorg Chem 2014; 53:10276-82. [DOI: 10.1021/ic5013236] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Rajeev Rajasekharan-Nair
- Department of Pure and Applied
Chemistry, WestChem University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Dean Moore
- Department of Pure and Applied
Chemistry, WestChem University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Alan R. Kennedy
- Department of Pure and Applied
Chemistry, WestChem University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - John Reglinski
- Department of Pure and Applied
Chemistry, WestChem University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K
| | - Mark D. Spicer
- Department of Pure and Applied
Chemistry, WestChem University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, U.K
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Kreider-Mueller A, Rong Y, Owen JS, Parkin G. Molecular structures of tris(2-mercapto-1-tert-butylimidazolyl)hydroborato and tris(2-mercapto-1-adamantylimidazolyl)hydroborato sodium complexes: analysis of [Tm(R)] ligand coordination modes and conformations. Dalton Trans 2014; 43:10852-65. [PMID: 24898480 DOI: 10.1039/c4dt01271b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The tris(mercaptoimidazolyl)hydroborato complexes, [κ(3)-S2H-Tm(Bu(t))]Na(THF)3 and [κ(3)-S2H-Tm(Ad)]Na(THF)3, which feature t-butyl and adamantyl substituents, have been synthesized via the reactions of the respective 1-R-1,3-dihydro-2H-imidazole-2-thiones with NaBH4 in THF (R = Bu(t), 1-Ad). X-ray diffraction studies indicate that the compounds are monomeric and that the [Tm(R)] ligands coordinate to the metal in a κ(3)-S2H manner via two of the sulfur donors and the hydrogen attached to boron, a combination that is unprecedented for sodium derivatives. Analysis of the tris(mercaptoimidazolyl)hydroborato compounds that are listed in the Cambridge Structural Database has allowed for the formulation of a set of criteria that enables κ(x)-S(x) and κ(x+1)-S(x)H coordination modes to be identified. Furthermore, the various κ(x)-S(x) and κ(x+1)-S(x)H coordination modes have also been analyzed with respect to the conformations of the [Tm(R)] ligands, which differ by rotation of the imidazolethione moieties about the B-N bond.
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Affiliation(s)
- Ava Kreider-Mueller
- Department of Chemistry, Columbia University, New York, New York 10027, USA.
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Rajesekharan-Nair R, Lutta ST, Kennedy AR, Reglinski J, Spicer MD. Soft scorpionate coordination at alkali metals. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2014; 70:421-7. [PMID: 24816005 DOI: 10.1107/s2053229614005737] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/17/2013] [Accepted: 03/13/2014] [Indexed: 11/10/2022]
Abstract
Reported here are the single-crystal X-ray structure analyses of bis-μ-methanol-κ(4)O:O-bis{[hydrotris(3-phenyl-2-sulfanylidene-2,3-dihydro-1H-1,3-imidazol-1-yl)borato-κ(3)H,S,S'](methanol-κO)sodium(I)}, [Na2(C27H22BN6S3)2(CH4O)4] (NaTm(Ph)), bis-μ-methanol-κ(4)O:O-bis{[hydrotris(3-isopropyl-2-sulfanylidene-2,3-dihydro-1H-1,3-imidazol-1-yl)borato-κ(3)H,S,S'](methanol-κO)sodium(I)}-diethyl ether-methanol (1/0.3333/0.0833), [Na2(C18H28BN6S3)2(CH4O)4]·0.3333C4H10O·0.0833CH3OH (NaTm(iPr)), and a novel anhydrous form of sodium hydrotris(methylthioimidazolyl)borate, poly[[μ-hydrotris(3-methyl-2-sulfanylidene-2,3-dihydro-1H-1,3-imidazol-1-yl)borato]sodium(I)], [Na(C12H16BN6S3)] ([NaTm(Me)]n). NaTm(iPr) and NaTm(Ph) have similar dimeric molecular structures with κ(3)H,S,S'-bonding, but they differ in that NaTm(Ph) is crystallographically centrosymmetric (Z' = 0.5) while NaTm(iPr) contains one crystallographically centrosymmetric dimer and one dimer positioned on a general position (Z' = 1.5). [NaTm(Me)]n is a one-dimensional coordination polymer that extends along the a direction and which contains a hitherto unseen side-on η(2)-C=S-to-Na bond type. An overview of the structural preferences of alkali metal soft scorpionate complexes is presented. This analysis suggests that these thione-based ligands will continue to be a rich source of interesting alkali metal motifs worthy of isolation and characterization.
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Affiliation(s)
- Rajeev Rajesekharan-Nair
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, Scotland
| | - Samuel T Lutta
- Department of Chemistry and Biochemistry, Chepkoilel University College, Moi University, PO Box 1125, Eldoret, Kenya
| | - Alan R Kennedy
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, Scotland
| | - John Reglinski
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, Scotland
| | - Mark D Spicer
- WestCHEM, Department of Pure and Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow G1 1XL, Scotland
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Wallace D, Chalmers K, Dodds CA, Stepek IA, Armstrong DR, Berlouis LEA, Reglinski J, Spicer MD. The Thermal Stability of Tris(methimazolyl)borates and Their Germanium Complexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201301588] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Dawn Wallace
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, http://www.strath.ac.uk/chemistry
| | - Kirsten Chalmers
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, http://www.strath.ac.uk/chemistry
| | - Christopher A. Dodds
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, http://www.strath.ac.uk/chemistry
| | - Iain A. Stepek
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, http://www.strath.ac.uk/chemistry
| | - David R. Armstrong
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, http://www.strath.ac.uk/chemistry
| | - Leonard E. A. Berlouis
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, http://www.strath.ac.uk/chemistry
| | - John Reglinski
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, http://www.strath.ac.uk/chemistry
| | - Mark D. Spicer
- Department of Pure & Applied Chemistry, University of Strathclyde, 295 Cathedral Street, Glasgow, G1 1XL, UK, http://www.strath.ac.uk/chemistry
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Rong Y, Palmer JH, Parkin G. Benzannulated tris(2-mercapto-1-imidazolyl)hydroborato ligands: tetradentate κ4-S3H binding and access to monomeric monovalent thallium in an [S3] coordination environment. Dalton Trans 2014; 43:1397-407. [PMID: 24201311 PMCID: PMC3912732 DOI: 10.1039/c3dt52418c] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The benzannulated tris(mercaptoimidazolyl)borohydride sodium complex, [Tm(Bu(t)Benz)]Na, has been synthesized via the reaction of NaBH4 with 1-tert-butyl-1,3-dihydro-2H-benzimidazole-2-thione, while [Tm(MeBenz)]K has been synthesized via the reaction of KBH4 with 1-methyl-1,3-dihydro-2H-benzimidazole-2-thione. The molecular structures of the solvated adducts, {[Tm(Bu(t)Benz)]Na(THF)}2(μ-THF)2 and [Tm(MeBenz)]K(OCMe2)3, have been determined by X-ray diffraction, which demonstrates that the [Tm(R)] ligands in these complexes adopt different coordination modes to that in {[Tm(MeBenz)]Na}2(μ-THF)3. Specifically, while the [Tm(MeBenz)] ligand of the sodium complex {[Tm(MeBenz)]Na}2(μ-THF)3 adopts a κ(3)-S3 coordination mode, the potassium complex [Tm(MeBenz)]K(OCMe2)3 adopts a most uncommon inverted κ(4)-S3H coordination mode in which the potassium binds to all three sulfur donors and the hydrogen of the B-H group in a linear KH-B manner. Furthermore, the [Tm(Bu(t)Benz)] ligand of {[Tm(Bu(t)Benz)]Na(THF)}2(μ-THF)2 adopts a κ(3)-S2H coordination mode, thereby demonstrating the flexibility of this ligand system. The monovalent thallium compounds, [Tm(MeBenz)]Tl and [Tm(Bu(t)Benz)]Tl, have been obtained via the corresponding reactions of [Tm(MeBenz)]Na and [Tm(Bu(t)Benz)]Na with TlOAc. X-ray diffraction demonstrates that the three sulfur donors of the [Tm(RBenz)] ligands of both [Tm(MeBenz)]Tl and [Tm(Bu(t)Benz)]Tl chelate to thallium. This coordination mode is in marked contrast to that in other [Tm(R)]Tl compounds, which exist as dinuclear molecules wherein two of the sulfur donors coordinate to different thallium centers. As such, this observation provides further evidence that benzannulation promotes κ(3)-S3 coordination in this system.
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Affiliation(s)
- Yi Rong
- Department of Chemistry, Columbia University, New York, New York 10027, USA.
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Al-Harbi A, Rong Y, Parkin G. Synthesis and structural characterization of bis and tris(2-mercapto-1-methylbenzimidazolyl)hydroborato complexes: benzannulation promotes κ³-coordination. Dalton Trans 2013; 42:11117-27. [PMID: 23801309 DOI: 10.1039/c3dt51092a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The benzannulated bis and tris(mercaptoimidazolyl)borohydride compounds, [BmMeBenz]Na and [TmMeBenz]Na, have been synthesized via the reactions of NaBH4 with two and three equivalents of 1-methyl-1,3-dihydro-2H-benzimidazole-2-thione, respectively. X-ray diffraction studies on the THF adducts, {μ-[BmMeBenz]Na(THF)₂}₂ and {[TmMeBenz]Na}₂(μ-THF)₃, indicate that both compounds are dinuclear but differ according to the nature of the bridging ligand. Specifically, {μ-[BmMeBenz]Na(THF)₂}₂ possesses bridging [BmMeBenz] ligands and terminal THF ligands, while {[TmMeBenz]Na}₂(μ-THF)₃ possesses terminal [TmMeBenz] ligands and bridging THF ligands. The tris(mercaptoimidazolyl)borohydride ligand of {[TmMeBenz]Na}₂(μ-THF)₃ coordinates in a κ³-manner, which is in marked contrast to the κ²-, κ¹- and κ⁰-modes that have been reported for various [TmMe]Na derivatives. Density functional theory (DFT) geometry optimization calculations of the anions [TmMeBenz]⁻ and [TmMe]⁻ in the gas phase indicate that the conformation required for κ³-S₃ coordination, i.e. one in which the three sulfur donors point away from the B-H group, is relatively more stable for [TmMeBenz]⁻ than for [TmMe]⁻, and thus provides a rationalization for the observation that benzannulation enables κ³-coordination of tris(mercaptoimidazolyl)borohydride ligand in {[TmMeBenz]Na}₂(μ-THF)₃. Furthermore, comparison of the molecular structure and IR spectroscopic properties of [TmMeBenz]Re(CO)₃ with those of [TmMe]Re(CO)₃ indicates that benzannulation reduces the electron donating properties of the ligand, but has little effect on its steric properties. {μ-[BmMeBenz]Na(THF)₂}₂ and {[TmMeBenz]Na}₂(μ-THF)₃ react with [Me₃PCuCl]₄ to give [BmMeBenz]CuPMe₃ and [TmMeBenz]CuPMe₃, the first pair of structurally related bis and tris(mercaptoimidazolyl)hydroborato copper(I) compounds.
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Affiliation(s)
- Ahmed Al-Harbi
- Department of Chemistry, Columbia University, New York, NY 10027, USA
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Rajasekharan-Nair R, Marckwordt A, Lutta ST, Schwalbe M, Biernat A, Armstrong DR, Watson AJB, Kennedy AR, Reglinski J, Spicer MD. Soft Scorpionate Anions as Platforms for Novel Heterocycles. Chemistry 2013; 19:13561-8. [DOI: 10.1002/chem.201300091] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2013] [Revised: 06/18/2013] [Indexed: 11/11/2022]
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