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Hejda M, Doležal L, Blahut J, Hupf E, Tydlitát J, Jambor R, Růžička A, Beckmann J, Dostál L. N-Coordinated tellurenium(II) and telluronium(IV) cations: synthesis, structure and hydrolysis. Dalton Trans 2023; 52:16235-16248. [PMID: 37853810 DOI: 10.1039/d3dt02404k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2023]
Abstract
A set of N-coordinated tellurium(II) compounds containing either C,N-chelating ligands CNR (where CN = 2-(RNCH)C6H4, R = tBu or Dipp; Dipp = 2,6-iPr2C6H3) or N,C,N pincer ligands NCNR (where NCN = 2,6-(RNCH)2C6H4, R = tBu or Dipp) were synthesized. In the case of C,N-chelated compounds, the reaction of CNDippLi with Te(dtc)2 (where dtc = Et2NCS2) in a 1 : 1 molar ratio smoothly provided the carbamate CNDippTe(dtc) which upon treatment with 2 eq. of HCl provided the chloride CNDippTeCl. In contrast, the analogous conversion of NCNRLi with Te(dtc)2 surprisingly furnished ionic bromides [NCNRTe]Br as a result of the exchange of dtc by Br coming from nBuBr present in the reaction mixture. Furthermore, the reaction of CNDippTeCl or [NCNRTe]Br with silver salts AgX (X = OTf or SbF6) provided the expected tellurenium cations [CNDippTe]SbF6 and [NCNRTe]X. To further increase the Lewis acidity of the central atom, the oxidation of selected compounds with 1 eq. of SO2Cl2 was examined yielding stable compounds [CNtBuTeCl2]X and [NCNtBuTeCl2]X. The oxidation of the Dipp substituted compounds proved to be more challenging and an excess of SO2Cl2 was necessary to obtain the oxidized products [CNDippTeCl2]SbF6 and [NCNDippTeCl2]SbF6, which could solely be characterized in solution. Compounds [CNtBuTeCl2]OTf and [NCNtBuTeCl2]OTf were shown to undergo a controlled hydrolysis to the corresponding telluroxanes. All compounds were studied by multinuclear NMR spectroscopy in solution and for selected compounds solid state 125Te NMR spectroscopy and single-crystal X-ray diffraction analysis were performed. The Lewis acidity of the studied cations was examined by the Gutmann-Beckett method using Et3PO as the probing agent. The Te-N chalcogen bonding situation of selected compounds has also been examined computationally by a set of real-space bonding indicators.
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Affiliation(s)
- Martin Hejda
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic.
| | - Lukáš Doležal
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic.
| | - Jan Blahut
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Science, Flemingovo nám. 2, 16610, Prague, Czech Republic
| | - Emanuel Hupf
- Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany.
| | - Jiří Tydlitát
- Institute of Organic Chemistry and Technology, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic
| | - Roman Jambor
- 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.
| | - Jens Beckmann
- Institut für Anorganische Chemie und Kristallographie, Universität Bremen, Leobener Straße 7, 28359 Bremen, Germany.
| | - Libor Dostál
- 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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Chalcogen bond-guided conformational isomerization enables catalytic dynamic kinetic resolution of sulfoxides. Nat Commun 2022; 13:4793. [PMID: 35970848 PMCID: PMC9378665 DOI: 10.1038/s41467-022-32428-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Accepted: 08/01/2022] [Indexed: 11/29/2022] Open
Abstract
Conformational isomerization can be guided by weak interactions such as chalcogen bonding (ChB) interactions. Here we report a catalytic strategy for asymmetric access to chiral sulfoxides by employing conformational isomerization and chalcogen bonding interactions. The reaction involves a sulfoxide bearing two aldehyde moieties as the substrate that, according to structural analysis and DFT calculations, exists as a racemic mixture due to the presence of an intramolecular chalcogen bond. This chalcogen bond formed between aldehyde (oxygen atom) and sulfoxide (sulfur atom), induces a conformational locking effect, thus making the symmetric sulfoxide as a racemate. In the presence of N–heterocyclic carbene (NHC) as catalyst, the aldehyde moiety activated by the chalcogen bond selectively reacts with an alcohol to afford the corresponding chiral sulfoxide products with excellent optical purities. This reaction involves a dynamic kinetic resolution (DKR) process enabled by conformational locking and facile isomerization by chalcogen bonding interactions. Conformational isomerization of organic molecules can be guided by noncovalent interactions. Here, the authors report the synthesis of chiral sulfoxides catalyzed by N-heterocyclic carbenes; intramolecular chalcogen bonding interactions are key for conformational locking.
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Garcia JA, Yukimoto M, Mizuhata Y, Tokitoh N. A unique 1,4-silyl group migration from carbon to carbon: Formation of benzylic silane in the reaction of sterically hindered benzylic telluride with alkyllithium. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.122119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Mehrparvar S, Scheller ZN, Wölper C, Haberhauer G. Design of Azobenzene beyond Simple On-Off Behavior. J Am Chem Soc 2021; 143:19856-19864. [PMID: 34793158 DOI: 10.1021/jacs.1c09090] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
Azobenzenes are without a doubt the most widely used light-induced switching units, and there is a plethora of application examples ranging from supramolecular chemistry to material science and biological chemistry. Here, we present a smart azobenzene, in which the photoswitching capability of the azobenzene moiety can be reversibly switched on and off using a second unit (redox switch). This second switching unit is based on the variation of the strength of a chalcogen bond between the azo group and a Te-Ph unit in ortho position to the azo group. This allows the selective switching of only one azobenzene unit in the presence of other azobenzene switches. The entire double-switch is a very simple, small system that can also be easily synthesized. As a result, this double-switch can be used as a smarter replacement for the established azobenzene system in the future. For example, in contrast to the latter this double-switch could be employed to store state information analogous to a flip-flop in digital electronic systems.
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Affiliation(s)
- Saber Mehrparvar
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstr. 7, D-45117 Essen, Germany
| | - Zoe Nonie Scheller
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstr. 7, D-45117 Essen, Germany
| | - Christoph Wölper
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstr. 7, D-45117 Essen, Germany
| | - Gebhard Haberhauer
- Institut für Organische Chemie, Universität Duisburg-Essen, Universitätsstr. 7, D-45117 Essen, Germany
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Abdullah AA, Zahra J, Sabri S, Awwadi F, Abadleh M, Abdallah Q, El-Abadelah M. Thiophene Ring-Opening Reactions III: One-Pot Synthesis and Antitumor Activity of 1,3,4-Thiadiazoline-Benzothiazolo[3,2-b]pyridazine Hybrids. Curr Org Synth 2021; 19:279-290. [PMID: 34751123 DOI: 10.2174/1570179418666211109112148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 09/29/2021] [Accepted: 09/30/2021] [Indexed: 11/22/2022]
Abstract
INTRODUCTION The preparation of model 6-chloro-5-nitrothieno[2,3-c]pyridazines incorporating (2'-halo-5'-nitrophenyl) entity is described. Interaction of these substrates with N'-(aryl)benzothiohydrazides, in the presence of triethylamine, followed a formal [4+1] annulation, furnishing the respective 1,3,4-thiadiazoline-benzothiazolo [3,2-b]pyridazine hybrids directly. This one-pot synthesis implies thiophene ring-opening and two consecutive intramolecular cyclizations. The structures of the synthesized new hybrids are supported by MS, NMR, and IR spectral data and further confirmed by single-crystal X-ray diffraction. These hybrids exhibit antiproliferative activity with notable selectivity against solid tumor cell lines (IC50: 4-18 μM). AIMS This study aimed at exploring the scope and applicability of thiophene ring-opening reaction towards the synthesis of new thiadiazoline-[fused]tricyclic conjugates. BACKGROUND α-Chloro-β-nitrothienopyridazine underwent ring-opening upon reacting with N'-(aryl)benzothiohydrazides generating 1,3,4-thiadiazoline-benzothiazolo[3,2-b]pyridazines. OBJECTIVE This new thiophene ring-opening reaction is applied to the one-pot synthesis of thiadiazoline-benzothiazolo[3,2-b]pyridazine couples. METHOD A direct interaction of α-chloro-β-nitrothienopyridazine with N'-(aryl)benzothiohydrazide at room temperature for 1-2 h occurred. RESULT α-Chloro-β-nitrothieno[2,3-c]pyridazines are suitable substrates for the facile synthesis of thiadiazoline-benzothiazolo[3,2-b]pyridazine hybrids. CONCLUSION This novel ring-opening reaction proceeds via formal [4+1] annulation and provides a versatile approach to various conjugated and/or fused five-membered heterocycles.
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Affiliation(s)
- Ahmad Ahmad Abdullah
- Chemistry Department, Faculty of Science, The University of Jordan, Amman, 11942. Jordan
| | - Jalal Zahra
- Chemistry Department, Faculty of Science, The University of Jordan, Amman, 11942. Jordan
| | - Salim Sabri
- Chemistry Department, Faculty of Science, The University of Jordan, Amman, 11942. Jordan
| | - Firas Awwadi
- Chemistry Department, Faculty of Science, The University of Jordan, Amman, 11942. Jordan
| | - Mohammed Abadleh
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman 11196. Jordan
| | - Qasem Abdallah
- Faculty of Pharmacy and Medical Sciences, University of Petra, Amman 11196. Jordan
| | - Mustafa El-Abadelah
- Chemistry Department, Faculty of Science, The University of Jordan, Amman, 11942. Jordan
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Thiophene ring-opening reactions II. Easy synthesis of 1,3,4-thiadiazoline-sulfanylpyridazine hybrids. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02798-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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7
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Deka R, Pant R, Gupta A, Naresh Patwari G, Singh HB, Butcher RJ. Isolation of a telluroxane cluster [(R2TeO)(μ-TeO2)(OTeR2)][TeO(OH)2] (R = C6H5NNC6H4) stabilized by intra- and intermolecular secondary bonding interactions: Molecular and electronic structure analysis. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115037] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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8
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Thiophene ring-opening reactions. Direct access to the synthesis of 1,3,4-thiadiazoline-(condenced) pyridone hybrids. Tetrahedron 2021. [DOI: 10.1016/j.tet.2021.131957] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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9
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Deka R, Gupta A, Sarkar A, Butcher RJ, Singh HB. Halogenation of Diorganotelluride [2,6‐(Me
2
NCH
2
)
2
C
6
H
3
]Te
n
Bu: Synthesis, Molecular and Electronic Structural Investigation of Monoorgano Dihalotelluronium(IV) Cation. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Rajesh Deka
- Department of Chemistry Indian Institute of Technology Bombay 400076 Mumbai India
| | - Anand Gupta
- Department of Chemistry Indian Institute of Technology Bombay 400076 Mumbai India
| | - Arup Sarkar
- Department of Chemistry Indian Institute of Technology Bombay 400076 Mumbai India
| | - Ray J. Butcher
- Department of Chemistry Howard University 20059 Washington D.C. USA
| | - Harkesh B. Singh
- Department of Chemistry Indian Institute of Technology Bombay 400076 Mumbai India
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Deka R, Sarkar A, Gupta A, Butcher RJ, Junk PC, Turner DR, Deacon GB, Singh HB. Exploring the Role of Strong Intramolecular Coordination of the 2‐(2'‐pyridyl)phenyl Group in Heavy Main Group Halides: Insights from Synthesis, Structural, and Bonding Analyses. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Rajesh Deka
- Department of Chemistry Indian Institute of Technology Bombay 400076 Mumbai India
- IITB‐Monash Research Academy 400076 Mumbai India
- School of Chemistry Monash University 3800 Clayton Victoria Australia
| | - Arup Sarkar
- Department of Chemistry Indian Institute of Technology Bombay 400076 Mumbai India
| | - Anand Gupta
- Department of Chemistry Indian Institute of Technology Bombay 400076 Mumbai India
| | - Ray J. Butcher
- Department of Chemistry Howard University 20059 Washington D. C. USA
| | - Peter C. Junk
- IITB‐Monash Research Academy 400076 Mumbai India
- College of Science & Engineering James Cook University 4811 Townsville QLD Australia
| | - David R. Turner
- IITB‐Monash Research Academy 400076 Mumbai India
- School of Chemistry Monash University 3800 Clayton Victoria Australia
| | - Glen B. Deacon
- IITB‐Monash Research Academy 400076 Mumbai India
- School of Chemistry Monash University 3800 Clayton Victoria Australia
| | - Harkesh B. Singh
- Department of Chemistry Indian Institute of Technology Bombay 400076 Mumbai India
- IITB‐Monash Research Academy 400076 Mumbai India
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11
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Deka R, Sarkar A, Butcher RJ, Junk PC, Turner DR, Deacon GB, Singh HB. Isolation of Homoleptic Dicationic Tellurium and Monocationic Bismuth Analogues of Non-N-Heterocyclic Carbene Derivatives. Organometallics 2020. [DOI: 10.1021/acs.organomet.9b00698] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Affiliation(s)
- Rajesh Deka
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
- IITB-Monash Research Academy, Powai, Mumbai 400076, India
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Arup Sarkar
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
| | - Ray J. Butcher
- Department of Chemistry, Howard University, Washington, DC 20059, United States
| | - Peter C. Junk
- IITB-Monash Research Academy, Powai, Mumbai 400076, India
- College of Science & Engineering, James Cook University, Townsville 4811, QLD, Australia
| | - David R. Turner
- IITB-Monash Research Academy, Powai, Mumbai 400076, India
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Glen B. Deacon
- IITB-Monash Research Academy, Powai, Mumbai 400076, India
- School of Chemistry, Monash University, Clayton, Victoria 3800, Australia
| | - Harkesh B. Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India
- IITB-Monash Research Academy, Powai, Mumbai 400076, India
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Deka R, Sarkar A, Butcher RJ, Junk PC, Turner DR, Deacon GB, Singh HB. Isolation of the novel example of a monomeric organotellurinic acid. Dalton Trans 2020; 49:1173-1180. [DOI: 10.1039/c9dt04013g] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The synthesis of the first example of a monomeric, stable organotellurinic acid is reported by utilizing the σ-hole participation of the Te atom with the N atom of the 2-(2′-pyridyl)phenyl moiety.
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Affiliation(s)
- Rajesh Deka
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
- IITB-Monash Research Academy
| | - Arup Sarkar
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | | | - Peter C. Junk
- IITB-Monash Research Academy
- Mumbai 400076
- India
- College of Science & Engineering
- James Cook University
| | - David R. Turner
- IITB-Monash Research Academy
- Mumbai 400076
- India
- School of Chemistry
- Monash University
| | - Glen B. Deacon
- IITB-Monash Research Academy
- Mumbai 400076
- India
- School of Chemistry
- Monash University
| | - Harkesh B. Singh
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
- IITB-Monash Research Academy
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Gupta A, Deka R, Srivastava K, Singh HB, Butcher RJ. Synthesis of Pd(II) complexes of unsymmetrical, hybrid selenoether and telluroether ligands: Isolation of tellura-palladacycles by fine tuning of intramolecular chalcogen bonding in hybrid telluroether ligands. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.03.036] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Gleiter R, Haberhauer G, Rominger F. A New Look on Larger Sulfur and Selenium Rings – Dispersion Forces and Shapes of Larger Cycles. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900744] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Rolf Gleiter
- Organisch‐Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
| | - Gebhard Haberhauer
- Institut für Organische Chemie Universität Duisburg‐Essen Universitätsstr. 7 45117 Essen Germany
| | - Frank Rominger
- Organisch‐Chemisches Institut Universität Heidelberg Im Neuenheimer Feld 270 69120 Heidelberg Germany
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Gupta A, Deka R, Raju S, Singh HB, Butcher RJ. Synthesis of intramolecularly coordinated heteroleptic diorganotellurides and diorganotelluroxides: Isolation of monomeric diorganotelluroxide [{2,6-(Me2NCH2)2C6H3}2TeO] and diorganohydroxytelluronium chloride [{2,6-(Me2NCH2)2C6H3}2Te(OH)]Cl. J Organomet Chem 2019. [DOI: 10.1016/j.jorganchem.2019.05.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Pietrasiak E, Baxter AF, Jelier B, Santschi N, Togni A. Trifluoromethyl Derivatives of Benzooxatellurole. Helv Chim Acta 2019. [DOI: 10.1002/hlca.201900079] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Ewa Pietrasiak
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of TechnologyETH Zürich Vladimir- Prelog-Weg 2 CH-8093 Zürich Switzerland
| | - Amanda F. Baxter
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of TechnologyETH Zürich Vladimir- Prelog-Weg 2 CH-8093 Zürich Switzerland
| | - Benson Jelier
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of TechnologyETH Zürich Vladimir- Prelog-Weg 2 CH-8093 Zürich Switzerland
| | - Nico Santschi
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of TechnologyETH Zürich Vladimir- Prelog-Weg 2 CH-8093 Zürich Switzerland
| | - Antonio Togni
- Department of Chemistry and Applied Biosciences, Swiss Federal Institute of TechnologyETH Zürich Vladimir- Prelog-Weg 2 CH-8093 Zürich Switzerland
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Vogel L, Wonner P, Huber SM. Chalcogen Bonding: An Overview. Angew Chem Int Ed Engl 2018; 58:1880-1891. [PMID: 30225899 DOI: 10.1002/anie.201809432] [Citation(s) in RCA: 344] [Impact Index Per Article: 57.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2018] [Indexed: 01/23/2023]
Abstract
In the last few decades, "unusual" noncovalent interactions like anion-π and halogen bonding have emerged as interesting alternatives to the ubiquitous hydrogen bonding in many research areas. This is also true, to a somewhat lesser extent, for chalcogen bonding, the noncovalent interaction involving Lewis acidic chalcogen centers. Herein, we aim to provide an overview on the use of chalcogen bonding in crystal engineering and in solution, with a focus on the recent developments concerning intermolecular chalcogen bonding in solution-phase applications. In the solid phase, chalcogen bonding has been used for the construction of nano-sized structures and the self-assembly of sophisticated self-complementary arrays. In solution, until very recently applications mostly focused on intramolecular interactions which stabilized the conformation of intermediates or reagents. In the last few years, intermolecular chalcogen bonding has increasingly also been exploited in solution, most notably in anion recognition and transport as well as in organic synthesis and organocatalysis.
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Affiliation(s)
- Lukas Vogel
- Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Patrick Wonner
- Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
| | - Stefan M Huber
- Faculty of Chemistry and Biochemistry, Ruhr-University Bochum, Universitätsstraße 150, 44801, Bochum, Germany
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18
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Affiliation(s)
- Lukas Vogel
- Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44801 Bochum Deutschland
| | - Patrick Wonner
- Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44801 Bochum Deutschland
| | - Stefan M. Huber
- Fakultät für Chemie und Biochemie; Ruhr-Universität Bochum; Universitätsstraße 150 44801 Bochum Deutschland
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Srivastava K, Panda A, Sharma S, Singh HB. Telluroxanes: Synthesis, structure and applications. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.02.036] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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Pietrasiak E, Togni A. Synthesis and Characterization of Fluorinated Hypervalent Tellurium Derivatives. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00535] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Ewa Pietrasiak
- Department of Chemistry and
Applied Biosciences, Swiss Federal Institute of Technology, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland
| | - Antonio Togni
- Department of Chemistry and
Applied Biosciences, Swiss Federal Institute of Technology, ETH Zürich, Vladimir-Prelog-Weg 2, CH-8093 Zürich, Switzerland
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Gupta A, Kumar S, Singh HB. Structural and Reactivity Aspects of Organoselenium and Tellurium Cations. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2016. [DOI: 10.1007/s40010-016-0301-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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22
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Yadav S, Raju S, Singh HB, Butcher RJ. Selone-stabilized aryltellurenyl cations. Dalton Trans 2016; 45:8458-67. [PMID: 27111528 DOI: 10.1039/c6dt01081d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Controlled bromination of a diarylditelluride, R2Te2 (R = 2,6-dimethylphenyl) (6) in dichloromethane led to the formation of a Te(II)-Te(IV) mixed-valent tellurenyl bromide, RBr2TeTeR (7). A further reaction of 7 with 1,3-dibutylbenzimidazolin-2-selone, C15H22N2Se (L) (9), produced the first selone adduct of the 2,6-dimethylphenyltellurenyl cation with the 2,6-dimethylphenyltellurium dibromide anion, [(2,6-Me2C6H3)Te(L)](+)[(2,6-Me2C6H3)TeBr2](-) (10). The red colored cationic adduct 10 is not stable in acetonitrile and disproportionated to give the selone adduct of 2,6-dimethylphenyltellurenyl bromide, [(2,6-Me2C6H3)Te(L)Br] (11b) and bis(2,6-dimethylphenyl)tellurium dibromide, [(2,6-Me2C6H3)2TeBr2], (13). The metathesis reaction of 11b with AgBF4 produced a stable dark red colored selone adduct of the 2,6-dimethylphenyltellurenyl cation with the BF4(-) anion, [(2,6-Me2C6H3)Te(L)](+)BF4(-) (15). The selone adducts of aryltellurenyl halides, i.e. [(2,6-Me2C6H3)Te(L)X] (X = Cl, Br, I) (11a-11c), have been synthesized by a one-pot reaction of 6 with an equimolar mixture of 9 and 1,3-dibutylbenzimidazolin-2-dihaloselones, C15H22N2SeX2 (14a-14c). Triphenylphosphine (PPh3), when treated with [(2,6-Me2C6H3)Te(L)X] (11a-11c), substitutes selone from the adduct to afford the triphenylphosphine adducts of aryltellurenyl halides, [(2,6-Me2C6H3)Te(PPh3)X] (16a-16c).
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Affiliation(s)
- Sangeeta Yadav
- Department of Chemistry, Indian Institute of Technology Bombay, Mumbai 400076, India.
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Ho PC, Lee LM, Jenkins H, Britten JF, Vargas-Baca I. Influence of acidic media on the supramolecular aggregation of iso-tellurazole N-oxides. CAN J CHEM 2016. [DOI: 10.1139/cjc-2015-0389] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Iso-tellurazole N-oxides are promising supramolecular building blocks. While in neutral solutions, they form tetra- and hexameric macrocyclic aggregates linked by Te···O secondary bonding (σ hole interactions or chalcogen bonds), protonation of the oxygen atom in acidic media disrupts such supramolecular association. The process is reversible and, consequently, can be used to switch on and off the self-assembly process. Hammett acidity measurements gave pKa values of –3.2 for the protonated molecules. Adducts with HCl and HBr were isolated and structurally characterized. Protonation in solution led to the crystallization of a new polymorph of 3-methyl-5-phenyl-1,2-tellurazole N-oxide, which features a unique polymeric arrangement.
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Affiliation(s)
- Peter C. Ho
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
| | - Lucia Myongwon Lee
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
| | - Hilary Jenkins
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
| | - James F. Britten
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
| | - Ignacio Vargas-Baca
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
- Department of Chemistry and Chemical Biology, McMaster University, 1280 Main Street West, Hamilton, ON L8S 4M1, Canada
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Caracelli I, Zukerman-Schpector J, Haiduc I, Tiekink ERT. Main group metal lone-pair⋯π(arene) interactions: a new bonding mode for supramolecular associations. CrystEngComm 2016. [DOI: 10.1039/c6ce01460g] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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25
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Isolation and structures of some selenium and tellurium derivatives of 1, 4, 5, 8, 9, 12-hexabromododecahydrotriphenylene as co-crystals of triphenylene. J CHEM SCI 2014. [DOI: 10.1007/s12039-014-0713-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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26
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Metre RK, Kundu S, Sahoo D, Chandrasekhar V. Reactions of RTeCl3 (R = 2-phenylazophenyl) with Diorganophosphinic Acids. Te–C Bond Cleavage and Stabilization of the Te═O Motif in an Umbrella-Shaped Te5O11P2 Multi-metallacyclic Framework. Organometallics 2014. [DOI: 10.1021/om5000216] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ramesh K. Metre
- School
of Chemical Sciences, National Institute of Science Education and Research (NISER), Institute of Physics Campus, 8 Bhubaneswar 751005, Orissa, India
| | - Subrata Kundu
- Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Dipankar Sahoo
- Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Vadapalli Chandrasekhar
- School
of Chemical Sciences, National Institute of Science Education and Research (NISER), Institute of Physics Campus, 8 Bhubaneswar 751005, Orissa, India
- Department
of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
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27
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Chopra A, Jain S, Srivastava SK, Gupta SK, Butcher RJ. Tri-phenyl-tellurium chloride. Acta Crystallogr Sect E Struct Rep Online 2014; 70:o421-2. [PMID: 24826133 PMCID: PMC3998628 DOI: 10.1107/s160053681400498x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2014] [Accepted: 03/04/2014] [Indexed: 05/21/2024]
Abstract
The asymmetric unit of the title compound, C18H15ClTe, contains two mol-ecules which are in inverted orientations. The compound displays a tetra-hedral geometry around the Te atom in spite of there being five electron domains. This is attributed to the fact that the lone pair is not sterically active. The dihedral angles between the three phenyl rings are 76.51 (16)/73.75 (16)/71.06 (17) and 78.60 (17)/77.67 (16)/79.11 (16)° in the two mol-ecules. The crystal packing features eight C-H⋯π inter-actions.
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Affiliation(s)
- Ambika Chopra
- School of Studies in Chemistry, Jiwaji University, Gwalior 474011, India
| | - Shalini Jain
- School of Studies in Chemistry, Jiwaji University, Gwalior 474011, India
| | | | - Sushil K. Gupta
- School of Studies in Chemistry, Jiwaji University, Gwalior 474011, India
| | - Ray J. Butcher
- Department of Chemistry, Howard University, 525 College Street NW, Washington, DC 20059, USA
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28
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Gondzik S, Schulz S, Bläser D, Wölper C. Reaction of L2Zn2 with Ph2E2 – synthesis of LZnEPh and reactions with oxygen and H-acidic substrates. Chem Commun (Camb) 2014; 50:1189-91. [DOI: 10.1039/c3cc48677j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
L2Zn2 (L = HC[C(Me)N(2,4,6-Me3C6H2)]2) and Ph2E2 (E = Se, Te) react to form LZnSePh (1) and LZnTePh (2).
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Affiliation(s)
- S. Gondzik
- University of Duisburg-Essen
- 45117 Essen, Germany
| | - S. Schulz
- University of Duisburg-Essen
- 45117 Essen, Germany
| | - D. Bläser
- University of Duisburg-Essen
- 45117 Essen, Germany
| | - C. Wölper
- University of Duisburg-Essen
- 45117 Essen, Germany
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29
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Chandrasekhar V, Metre RK, Biswas S. Stabilizing the [RSn(μ2-O)SnR] Motif through Intramolecular N→Sn Coordination. Synthesis and Characterization of [(RSn)2(μ2-O)(μ2-FcCOO)2(η-FcCOO)2]·THF and {(RSn)2(μ2-O)[(t-BuO)2PO2]2Cl2}·THF·2H2O (R = 2-(Phenylazo)phenyl). Organometallics 2013. [DOI: 10.1021/om400346b] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Vadapalli Chandrasekhar
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
- Tata Institute of Fundamental Research, Centre for Interdisciplinary
Sciences, 21, Brundavan Colony, Narsingi, Hyderabad 500075, India
| | - Ramesh K. Metre
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
| | - Sourav Biswas
- Department of Chemistry, Indian Institute of Technology Kanpur, Kanpur 208016, India
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Beckmann J, Bolsinger J, Duthie A, Finke P. Diarylhalotelluronium(iv) cations [(8-Me2NC10H6)2TeX]+ (X = Cl, Br, I) stabilized by intramolecularly coordinating N-donor substituents. Dalton Trans 2013; 42:12193-202. [DOI: 10.1039/c3dt51011e] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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31
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Beckmann J, Duthie A, Gesing TM, Koehne T, Lork E. Depolymerization of Aryltellurinic Anhydrides with Sodium Hydroxide. Synthesis and Structure of the Hydrated Sodium Aryltellurinates [Na(H2O)4](RTeO2) (R = 4-MeOC6H4, 8-Me2NC10H6). Organometallics 2012. [DOI: 10.1021/om300130a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jens Beckmann
- Institut für Anorganische und Physikalische
Chemie, Universität Bremen, Leobener
Straße, 28359 Bremen, Germany
| | - Andrew Duthie
- School of Life and Environmental
Science, Deakin University, Pigdons Road, Waurn Ponds 3217,
Australia
| | - Thorsten M. Gesing
- Institut für Anorganische und Physikalische
Chemie, Universität Bremen, Leobener
Straße, 28359 Bremen, Germany
| | - Tim Koehne
- Institut für Anorganische und Physikalische
Chemie, Universität Bremen, Leobener
Straße, 28359 Bremen, Germany
| | - Enno Lork
- Institut für Anorganische und Physikalische
Chemie, Universität Bremen, Leobener
Straße, 28359 Bremen, Germany
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32
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Rakesh P, Singh HB, Butcher RJ. Isolation and molecular structures of novel organotellurium(iv) halides, oxyhalide and mixed halide. Dalton Trans 2012; 41:10707-14. [DOI: 10.1039/c2dt30645j] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Beckmann J, Bolsinger J, Duthie A, Finke P. New Series of Intramolecularly Coordinated Diaryltellurium Compounds. Rational Synthesis of the Diarylhydroxytelluronium Triflate [(8-Me2NC10H6)2Te(OH)](O3SCF3). Organometallics 2011. [DOI: 10.1021/om2008259] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jens Beckmann
- Institut für Chemie und
Biochemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany
- Institut für Anorganische
und Physikalische Chemie, Universität Bremen, Leobener Straße, 28359 Bremen, Germany
| | - Jens Bolsinger
- Institut für Chemie und
Biochemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany
| | - Andrew Duthie
- School of Life and Environmental
Sciences, Deakin University, Pigdons Road,
Waurn Ponds 3217, Australia
| | - Pamela Finke
- Institut für Chemie und
Biochemie, Freie Universität Berlin, Fabeckstraße 34/36, 14195 Berlin, Germany
- Institut für Anorganische
und Physikalische Chemie, Universität Bremen, Leobener Straße, 28359 Bremen, Germany
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34
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Selvakumar K, Singh HB, Goel N, Singh UP. Methyl Ester Function: An Intramolecular Electrophilic Trap for the Isolation of Aryltellurenyl Hydroxide and Diorganotellurium Dihydroxide. Organometallics 2011. [DOI: 10.1021/om2001553] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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35
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SHARMA SAGAR, CHAKRABORTY TAPASH, SRIVASTAVA KRITI, SINGH HARKESHB. Aspects of secondary bonding intramolecular interaction in organomercury and organochalcogen derivatives. J CHEM SCI 2011. [DOI: 10.1007/s12039-011-0106-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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36
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Chakraborty T, Sharma S, Singh HB, Butcher RJ. Reactions of Di-o-tolyl Telluride and Selenide with Palladium Acetate: Isolation of a Novel Palladium Complex of a Tellurenic Acid Anhydride and Related Trinuclear and Tetranuclear Palladium Complexes. Organometallics 2011. [DOI: 10.1021/om2000184] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tapash Chakraborty
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Sagar Sharma
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Harkesh B. Singh
- Department of Chemistry, Indian Institute of Technology Bombay, Powai, Mumbai 400076, India
| | - Ray J. Butcher
- Department of Chemistry, Howard University, Washington, D.C. 20059, United States
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37
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Misra S, Chauhan AKS, Srivastava RC, Duthie A, Butcher RJ. Controlled hydrolysis of aryltellurium trichlorides using 2-pyrrolidinones: isolation and structural characterization of monomeric aryltellurium(IV) monohydroxides. RSC Adv 2011. [DOI: 10.1039/c1ra00409c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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