1
|
Culvyhouse J, Unruh DK, Lischka H, Aquino AJA, Krempner C. Facile Access to Organostibines via Selective Organic Superbase Catalyzed Antimony-Carbon Protonolysis. Angew Chem Int Ed Engl 2024; 63:e202407822. [PMID: 38763897 DOI: 10.1002/anie.202407822] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/21/2024]
Abstract
The selective formation of antimony-carbon bonds via organic superbase catalysis under metal- and salt-free conditions is reported. This novel approach utilizes electron-deficient stibine, Sb(C6F5)3, to give upon base-catalyzed reactions with weakly acidic aromatic and heteroaromatic hydrocarbons access to a range of new aromatic and heteroaromatic stibines, respectively, with loss of C6HF5. Also, the significantly less electron-deficient stibines, Ph2SbC6F5 and PhSb(C6F5)2 smoothly underwent base-catalyzed exchange reactions with a range of terminal alkynes to generate the stibines of formulae PhSb(C≡CPh)2, and Ph2SbC≡CR [R=C6H5, C6H4-NO2, COOEt, CH2Cl, CH2NEt2, CH2OSiMe3, Sb(C6H5)2], respectively. These formal substitution reactions proceed with high selectivity as only the C6F5 groups serve as a leaving group to be liberated as C6HF5 upon formal proton transfer from the alkyne. Kinetic studies of the base-catalyzed reaction of Ph2SbC6F5 with phenyl acetylene to form Ph2SbC≡CPh and C6HF5 suggested the empirical rate law to exhibit a first-order dependence with respect to the base catalyst, alkyne and stibine. DFT calculations support a pathway proceeding via a concerted σ-bond metathesis transition state, where the base catalyst activates the Sb-C6F5 bond sequence through secondary bond interactions.
Collapse
Affiliation(s)
- Jacob Culvyhouse
- Department of Chemistry & Biochemistry, Texas Tech University, Memorial Dr. & Boston, Lubbock, Texas, 79409, United States
| | - Daniel K Unruh
- Department of Chemistry & Biochemistry, Texas Tech University, Memorial Dr. & Boston, Lubbock, Texas, 79409, United States
| | - Hans Lischka
- Department of Chemistry & Biochemistry, Texas Tech University, Memorial Dr. & Boston, Lubbock, Texas, 79409, United States
| | - Adelia J A Aquino
- Department of Mechanical Engineering, Texas Tech University, Lubbock, Texas, 79409-1021, United States
| | - Clemens Krempner
- Department of Chemistry & Biochemistry, Texas Tech University, Memorial Dr. & Boston, Lubbock, Texas, 79409, United States
| |
Collapse
|
2
|
Krieft J, Trapp PC, Vishnevskiy YV, Neumann B, Stammler HG, Lamm JH, Mitzel NW. A geminal antimony(iii)/phosphorus(iii) frustrated Lewis pair. Chem Sci 2024; 15:12118-12125. [PMID: 39092119 PMCID: PMC11290451 DOI: 10.1039/d4sc02785j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Accepted: 06/29/2024] [Indexed: 08/04/2024] Open
Abstract
The geminal Lewis pair (F5C2)2SbCH2P(tBu)2 (1) was prepared by reacting (F5C2)2SbCl with LiCH2P(tBu)2. Despite its extremely electronegative pentafluoroethyl substituents, the neutral 1 exhibits a relatively soft acidic antimony function according to the HSAB concept (hard-soft acid-base). These properties lead to a reversibility in the binding of CS2 to 1, as observed by VT-NMR spectroscopy, while no reaction with CO2 is observed. The reaction behaviour towards heterocumulenes and the specific interaction situation in the CS2 adduct were analysed by quantum chemical calculations. The FLP-type reactivity of 1 has also been demonstrated by reaction with a variety of small molecules (SO2, PhNCO, PhNCS, (MePh2P)AuCl). The reactions of 1 with PhNCO and PhNCS led to different types of cyclic addition products: PhNCO adds with its N[double bond, length as m-dash]C bond and PhNCS adds preferentially with its C[double bond, length as m-dash]S bond. The reaction of 1 with (MePh2P)AuCl gave an adduct {[(F5C2)2SbCH2(tBu)2P]2Au}+ with a clamp-like structure binding a chloride anion by its two antimony atoms in chelate mode. Compound 1 and its adducts have been characterised by X-ray diffraction experiments, multinuclear NMR spectroscopy, elemental analyses and computational calculations (DFT, QTAIM, IQA).
Collapse
Affiliation(s)
- Jonas Krieft
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25 Bielefeld 33615 Germany
| | - Pia C Trapp
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25 Bielefeld 33615 Germany
| | - Yury V Vishnevskiy
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25 Bielefeld 33615 Germany
| | - Beate Neumann
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25 Bielefeld 33615 Germany
| | - Hans-Georg Stammler
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25 Bielefeld 33615 Germany
| | - Jan-Hendrik Lamm
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25 Bielefeld 33615 Germany
| | - Norbert W Mitzel
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25 Bielefeld 33615 Germany
| |
Collapse
|
3
|
Krieft J, Neumann B, Stammler HG, Mitzel NW. Oxidation-dependent Lewis acidity in chalcogen adducts of Sb/P frustrated Lewis pairs. Dalton Trans 2024; 53:11762-11768. [PMID: 38938114 DOI: 10.1039/d4dt01591f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/29/2024]
Abstract
The reactions of the frustrated Lewis pair (F5C2)2SbCH2P(tBu)2 with oxygen, sulphur, selenium and tellurium led to the mono-oxidation products (F5C2)2SbCH2P(E)(tBu)2 (E = O, S, Se, Te). Further oxidation of these chalcogen adducts with tetrachloro-ortho-benzoquinone (o-chloranil) gave (F5C2)2Sb(CH2)(μ-E)P(tBu)2·CatCl (CatCl = o-O2C6Cl4) with a central four-membered ring heterocycle for E = O, S, and Se. For E = Te the elimination of elemental tellurium led to an oxidation product with two equivalents of o-chloranil, (F5C2)2SbCH2P(tBu)2·2CatCl, which is also accessible by reaction of (F5C2)2SbCH2P(tBu)2 with o-chloranil. The synthesised compounds were characterised by NMR spectroscopy and X-ray structure analyses, and the structural properties were analysed in the light of the altered Lewis acidity due to the oxidation of the antimony atoms.
Collapse
Affiliation(s)
- Jonas Krieft
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, Bielefeld 33615, Germany.
| | - Beate Neumann
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, Bielefeld 33615, Germany.
| | - Hans-Georg Stammler
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, Bielefeld 33615, Germany.
| | - Norbert W Mitzel
- Chair of Inorganic and Structural Chemistry, Center for Molecular Materials CM2, Faculty of Chemistry, Bielefeld University, Universitätsstraße 25, Bielefeld 33615, Germany.
| |
Collapse
|
4
|
Lan X, Zhang X, Mei Y, Hu C, Liu LL. Utilizing bis(imino)dihydroacridanide pincer ligands in p-block chemistry: synthesis and catalysis of an antimony monocation salt. Dalton Trans 2023; 52:15660-15664. [PMID: 37859530 DOI: 10.1039/d3dt03310d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2023]
Abstract
We present the synthesis and characterization of an Sb(III) monocation salt stabilized by a bulky bis(imino)dihydroacridanide pincer ligand. The Lewis acidity of the Sb cation is quantified using the Guttmann-Beckett method and confirmed by its reaction with 4-dimethylaminopyridine, which forms a Lewis acid-base adduct. This Sb cation exhibits catalytic activity in the cyanosilylation of arylketones. The electronic structure of the Sb cation as well as the mechanism of the catalytic transformation are explored by density functional theory computations.
Collapse
Affiliation(s)
- Xiaofang Lan
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Xin Zhang
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Yanbo Mei
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Chaopeng Hu
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China.
| | - Liu Leo Liu
- Department of Chemistry, Guangdong Provincial Key Laboratory of Catalysis and Research Center for Chemical Biology and Omics Analysis, College of Science, Southern University of Science and Technology, Shenzhen 518055, China.
| |
Collapse
|
5
|
Murphy B, Gabbaï FP. Binding, Sensing, And Transporting Anions with Pnictogen Bonds: The Case of Organoantimony Lewis Acids. J Am Chem Soc 2023; 145:19458-19477. [PMID: 37647531 PMCID: PMC10863067 DOI: 10.1021/jacs.3c06991] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2023] [Indexed: 09/01/2023]
Abstract
Motivated by the discovery of main group Lewis acids that could compete or possibly outperform the ubiquitous organoboranes, several groups, including ours, have engaged in the chemistry of Lewis acidic organoantimony compounds as new platforms for anion capture, sensing, and transport. Principal to this approach are the intrinsically elevated Lewis acidic properties of antimony, which greatly favor the addition of halide anions to this group 15 element. The introduction of organic substituents to the antimony center and its oxidation from the + III to the + V state provide for tunable Lewis acidity and a breadth of applications in supramolecular chemistry and catalysis. The performances of these antimony-based Lewis acids in the domain of anion sensing in aqueous media illustrate the favorable attributes of antimony as a central element. At the same time, recent advances in anion binding catalysis and anion transport across phospholipid membranes speak to the numerous opportunities that lie ahead in the chemistry of these unique main group compounds.
Collapse
Affiliation(s)
- Brendan
L. Murphy
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843-3255, United States
| | - François P. Gabbaï
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843-3255, United States
| |
Collapse
|
6
|
Schulz J, Antala J, Rezazgui D, Císařová I, Štěpnička P. Synthesis, Structure, Reactivity, and Intramolecular Donor-Acceptor Interactions in a Phosphinoferrocene Stibine and Its Corresponding Phosphine Chalcogenides and Stiboranes. Inorg Chem 2023; 62:14028-14043. [PMID: 37566394 PMCID: PMC10466383 DOI: 10.1021/acs.inorgchem.3c02075] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Indexed: 08/12/2023]
Abstract
Ferrocene-based phosphines equipped with additional functional groups are versatile ligands for coordination chemistry and catalysis. This contribution describes a new compound of this type, combining phosphine and stibine groups at the ferrocene backbone, viz. 1-(diphenylphosphino)-1'-(diphenylstibino)ferrocene (1). Phosphinostibine 1 and the corresponding P-chalcogenide derivatives Ph2P(E)fcSbPh2 (1E, fc = ferrocene-1,1'-diyl, E = O, S, Se) were synthesized and further converted to the corresponding stiboranes Ph2P(E)fcSb(O2C6Cl4)Ph2 (6 and 6E) by oxidation with o-chloranil. All compounds were characterized by spectroscopic methods, X-ray diffraction analysis, cyclic voltammetry, and theoretical methods. Both NMR spectroscopy and DFT calculations confirmed the presence of P → Sb and P═O → Sb donor-acceptor interactions in 6 and 6O, triggered by the oxidation of the stibine moiety into Lewis acidic stiborane. The corresponding interactions in 6S and 6Se were of the same type but significantly weaker. A coordination study with AuCl as the model metal fragment revealed that the phosphine group acts as the "primary" coordination site, in line with its higher basicity. The obtained Au(I) complexes were applied as catalysts in the Au-catalyzed cyclization of N-propargylbenzamide and in the oxidative [2 + 2 + 1] cyclization of ethynylbenzene with acetonitrile and pyridine N-oxides. The catalytic results showed that the stibine complexes had worse catalytic performance than their phosphine counterparts, most likely due to the formation of weaker coordination bonds and hence poorer stabilization of the active metal species. Nevertheless, the stibine moiety could be used to fine-tune the properties of the ligated metal center by changing the oxidation state or substituents at the "remote" Sb atom.
Collapse
Affiliation(s)
- Jiří Schulz
- Department
of Inorganic Chemistry,
Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Jakub Antala
- Department
of Inorganic Chemistry,
Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - David Rezazgui
- Department
of Inorganic Chemistry,
Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Ivana Císařová
- Department
of Inorganic Chemistry,
Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| | - Petr Štěpnička
- Department
of Inorganic Chemistry,
Faculty of Science, Charles University, Hlavova 2030, 128 40 Prague, Czech Republic
| |
Collapse
|
7
|
Qiu J, Bateman CN, Lu S, George GC, Li X, Gorden JD, Vasylevskyi S, Cozzolino AF. Solution Studies of a Water-Stable, Trivalent Antimony Pnictogen Bonding Anion Receptor with High Binding Affinities for CN -, OCN -, and OAc . Inorg Chem 2023. [PMID: 37499143 DOI: 10.1021/acs.inorgchem.3c01887] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/29/2023]
Abstract
The solution phase anion binding behavior of a water-stable bidentate pnictogen bond donor was studied. A modest change in the visible absorption spectrum allowed for the determination of the binding constants. High binding constants were observed with cyanide, cyanate, and acetate, and these were corroborated with density functional theory (DFT) calculations. The receptor could be recovered free from the anion following treatment with methyl triflate, confirming that it remains intact. The tight binding of cyanide and water stability were exploited to use this system as a supramolecular catalyst in a phase-transfer Strecker reaction, further demonstrating the utility of pnictogen bonding as a tool in noncovalent catalysis.
Collapse
Affiliation(s)
- Jinchun Qiu
- Department of Chemistry and Biochemistry, Texas Tech University, Box 1061, Lubbock, Texas 79409-1061, United States
| | - Curt N Bateman
- Department of Chemistry and Biochemistry, Texas Tech University, Box 1061, Lubbock, Texas 79409-1061, United States
| | - Shuai Lu
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - Gary C George
- Department of Chemistry and Biochemistry, Texas Tech University, Box 1061, Lubbock, Texas 79409-1061, United States
| | - Xiaopeng Li
- College of Chemistry and Environmental Engineering, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - John D Gorden
- Department of Chemistry and Biochemistry, Texas Tech University, Box 1061, Lubbock, Texas 79409-1061, United States
| | - Serhii Vasylevskyi
- Department of Chemistry and Biochemistry, Texas Tech University, Box 1061, Lubbock, Texas 79409-1061, United States
| | - Anthony F Cozzolino
- Department of Chemistry and Biochemistry, Texas Tech University, Box 1061, Lubbock, Texas 79409-1061, United States
| |
Collapse
|
8
|
Smith J, Gabbaï FP. Are Ar 3SbCl 2 Species Lewis Acidic? Exploration of the Concept and Pnictogen Bond Catalysis Using a Geometrically Constrained Example. Organometallics 2023; 42:240-245. [PMID: 38333362 PMCID: PMC10848295 DOI: 10.1021/acs.organomet.2c00565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2022] [Indexed: 02/01/2023]
Abstract
As part of our investigations into the Lewis acidic behavior of antimony derivatives, we have decided to study the properties of 5-phenyl-5,5-dichloro-λ5-dibenzostibole (1), a dichlorostiborane with an antimony atom confined to a five-membered heterocycle. Our work shows that the resulting geometrical constraints elevate the Lewis acidity of the antimony atom, as confirmed by the crystal structure of 1-THF and the solution study of the interaction of 1 with Ph3PO. The enhanced Lewis acidic properties of 1, which exceed those of simple dichlorostiboranes such as Ph3SbCl2, also become manifest in pnictogen bonding catalysis experiments involving the reductions of imines with Hantzsch ester. The influence of geometrical constraints in the chemistry of this compound is also supported by a computational activation strain analysis as well as by an energy decomposition analysis of a model Me3PO adduct.
Collapse
Affiliation(s)
- Jesse
E. Smith
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843, United States
| | - François P. Gabbaï
- Department of Chemistry, Texas A&M University, College
Station, Texas 77843, United States
| |
Collapse
|
9
|
Pandey MK, Mondal D, Kote BS, Balakrishna MS. Synthesis and Photophysical Properties of Heavier Pnictogen Complexes. Chempluschem 2023; 88:e202200460. [PMID: 36756696 DOI: 10.1002/cplu.202200460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2022] [Revised: 02/02/2023] [Accepted: 02/02/2023] [Indexed: 02/10/2023]
Abstract
Recent success in the synthesis of π-conjugated heavier pnictogen (As, Sb, and Bi) compounds and their transition metal complexes has led to the current surge in interest that led to significant development in the field of photophysical and optoelectronic properties of heavier pnictogens and their transition metal complexes. The presence of heavier pnictogens (As, Sb and Bi) in the molecular skeleton promotes inter-system crossing (ISC) and reverse inter-system crossing (RISC), because of the heavy atom effect, via altering the intermolecular interactions and orbital energy levels. As a result, π-conjugated heavier pnictogen compounds such as arsines, dibenzoarsepins, arsinoquinoline, heterofluorene, benzo[b]heterole (heterole=arsole, bismole, and stibole) show unique optoelectronic properties such as narrow bandgap, low-energy absorption, and long-wavelength emission than lighter pnictogen-based compounds. This review focuses on recent advances in the synthesis and photophysical properties of heavier pnictogen compounds. The synthesis and photophysical properties of heavier pnictogens are discussed and elaborated.
Collapse
Affiliation(s)
- Madhusudan K Pandey
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Dipanjan Mondal
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Basvaraj S Kote
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| | - Maravanji S Balakrishna
- Phosphorus Laboratory Department of Chemistry, Indian Institute of Technology Bombay, Mumbai, 400076, India
| |
Collapse
|
10
|
Inaba R, Oka K, Iwami T, Miyake Y, Tajima K, Imoto H, Naka K. Systematic Study of Pnictogen-Fused Heterofluorenes. Inorg Chem 2022; 61:7318-7326. [PMID: 35521780 DOI: 10.1021/acs.inorgchem.2c00158] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Heteroatom-fused π-conjugated molecules have attracted considerable attention, and various elements for such fusion have been investigated. Herein, we focused on pnictogen-fused heterofluorenes. The structures, reactivity with O2 and I2, coordination ability to AuCl, and photophysical properties were systematically studied to better understand the effects of pnictogen atoms on the nature of π-conjugated molecules.
Collapse
Affiliation(s)
- Ryoto Inaba
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kouki Oka
- Center for Future Innovation (CFI) and Department of Applied Chemistry, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Takahiro Iwami
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Yusuke Miyake
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kunihiko Tajima
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Graduate School of Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.,Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| |
Collapse
|
11
|
Kumar GR, Yang M, Zhou B, Gabbaï FP. Synthesis of an antimony rhodamine analog. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.01.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
12
|
Gonzalez VM, Park G, Yang M, Gabbaï FP. Fluoride anion complexation and transport using a stibonium cation stabilized by an intramolecular PO → Sb pnictogen bond. Dalton Trans 2021; 50:17897-17900. [PMID: 34816847 DOI: 10.1039/d1dt03370k] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We describe the synthesis of [o-Ph2P(O)(C6H4)SbPh3]+ ([2]+), an intramolecularly base-stabilized stibonium Lewis acid which was obtained by reaction of [o-Ph2P(C6H4)SbPh3]+ with NOBF4. This cation reacts with fluoride anions to afford the corresponding fluorostiborane o-Ph2P(O)(C6H4)SbFPh3, the structure of which indicates a strengthening of the PO → Sb interaction. When deployed in fluoride-containing POPC unilamellar vesicles, [2]+ behaves as a potent fluoride anion transporter whose activity greatly exceeds that of [Ph4Sb]+.
Collapse
Affiliation(s)
- Vanessa M Gonzalez
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, USA.
| | - Gyeongjin Park
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, USA.
| | - Mengxi Yang
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, USA.
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, USA.
| |
Collapse
|
13
|
Moaven S, Watson BT, Polaske TJ, Karl BM, Unruh DK, Bowling NP, Cozzolino AF. Self-Assembly of Complementary Components Using a Tripodal Bismuth Compound: Pnictogen Bonding or Coordination Chemistry? Inorg Chem 2021; 60:11242-11250. [DOI: 10.1021/acs.inorgchem.1c01232] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Shiva Moaven
- Department of Chemistry and Biochemistry, Texas Tech University, 1204 Boston Avenue, Lubbock, Texas 79409-1061, United States
| | - Brandon T. Watson
- Department of Chemistry and Biochemistry, Texas Tech University, 1204 Boston Avenue, Lubbock, Texas 79409-1061, United States
| | - Thomas J. Polaske
- Department of Chemistry, University of Wisconsin—Stevens Point, 2101 Fourth Avenue, Stevens Point, Wisconsin 54481, United States
| | - Brian M. Karl
- Department of Chemistry, University of Wisconsin—Stevens Point, 2101 Fourth Avenue, Stevens Point, Wisconsin 54481, United States
| | - Daniel K. Unruh
- Department of Chemistry and Biochemistry, Texas Tech University, 1204 Boston Avenue, Lubbock, Texas 79409-1061, United States
| | - Nathan P. Bowling
- Department of Chemistry, University of Wisconsin—Stevens Point, 2101 Fourth Avenue, Stevens Point, Wisconsin 54481, United States
| | - Anthony F. Cozzolino
- Department of Chemistry and Biochemistry, Texas Tech University, 1204 Boston Avenue, Lubbock, Texas 79409-1061, United States
| |
Collapse
|
14
|
Tang N, Song X, Yang T, Qiu R, Yin SF. Synthesis and structure of the bimetallic organoantimony catalyst and its application in diastereoselective direct Mannich reaction as facile separation catalytic system. J Organomet Chem 2021. [DOI: 10.1016/j.jorganchem.2021.121820] [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]
|
15
|
Ishijima K, Tanaka S, Imoto H, Naka K. 2,3-Diarylbenzo[b]arsole: Structural Modification and Polymerization for Tuning of Photophysical Properties. Chemistry 2021; 27:4676-4682. [PMID: 33415783 DOI: 10.1002/chem.202005001] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/20/2020] [Indexed: 11/09/2022]
Abstract
2,3-Diarylbenzo[b]arsoles were synthesized from zirconacycles and diiodophenylarsine. The structural modification to the luminophore was attained through diarylacetylene precursors, Suzuki-Miyaura coupling, and oxidation of the arsenic atom. The emission properties were controlled according to these modifications. The 2,3-diarylbenzo[b]arsoles showed aggregation-induced emission enhancement; the stronger emission was observed in the solid states than in solutions. In addition, Suzuki-Miyaura polycondensation and olefin metathesis polymerization produced main- and side-chain polymers, respectively. The resultant polymers showed different emission behaviors such as aggregation caused quenching and aggregation induced emission enhancement.
Collapse
Affiliation(s)
- Kosuke Ishijima
- Faculty of Molecular Chemistry and Engineering, Graduate School of, Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Susumu Tanaka
- Faculty of Molecular Chemistry and Engineering, Graduate School of, Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Graduate School of, Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.,Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Graduate School of, Science and Technology, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto, 606-8585, Japan.,Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| |
Collapse
|
16
|
Matsumura M, Matsuhashi Y, Kawakubo M, Hyodo T, Murata Y, Kawahata M, Yamaguchi K, Yasuike S. Synthesis, Structural Characterization, and Optical Properties of Benzene-Fused Tetracyclic and Pentacyclic Stiboles. Molecules 2021; 26:molecules26010222. [PMID: 33406769 PMCID: PMC7795936 DOI: 10.3390/molecules26010222] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Revised: 12/22/2020] [Accepted: 12/28/2020] [Indexed: 01/16/2023] Open
Abstract
The expectation that antimony (Sb) compounds should display phosphorescence emissions based on the “heavy element effect” prompted our interest in the introduction of antimony to a biaryl as the bridging atom in a fused heterole system. Herein, the synthesis, molecular structures, and optical properties of novel benzene-fused heteroacenes containing antimony or arsenic atoms are described. The stiboles and arsole were prepared by the condensation of dibromo(phenyl)stibane or dichloro(phenyl)arsine with dilithium intermediates derived from the corresponding dibromo compounds. Nuclear magnetic resonance (NMR) spectroscopy and X-ray crystal analysis revealed that the linear pentacyclic stibole was highly symmetric in both the solution and crystal states. In contrast, the curved pentacyclic stibole adopted a helical structure in solution, and surprisingly, only M helical molecules were crystallized from the racemate. All synthesized compounds produced very weak or no emissions at room temperature or in the solid state. In contrast, the linear penta- and tetracyclic stiboles exhibited clear phosphorescence emissions in the CHCl3 frozen matrix at 77 K under aerobic conditions.
Collapse
Affiliation(s)
- Mio Matsumura
- School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan; (M.M.); (Y.M.); (M.K.); (Y.M.)
| | - Yuki Matsuhashi
- School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan; (M.M.); (Y.M.); (M.K.); (Y.M.)
| | - Masato Kawakubo
- School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan; (M.M.); (Y.M.); (M.K.); (Y.M.)
| | - Tadashi Hyodo
- Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan; (T.H.); (M.K.); (K.Y.)
| | - Yuki Murata
- School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan; (M.M.); (Y.M.); (M.K.); (Y.M.)
| | - Masatoshi Kawahata
- Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan; (T.H.); (M.K.); (K.Y.)
| | - Kentaro Yamaguchi
- Pharmaceutical Sciences at Kagawa Campus, Tokushima Bunri University, 1314-1 Shido, Sanuki, Kagawa 769-2193, Japan; (T.H.); (M.K.); (K.Y.)
| | - Shuji Yasuike
- School of Pharmaceutical Sciences, Aichi Gakuin University, 1-100 Kusumoto-cho, Chikusa-ku, Nagoya 464-8650, Japan; (M.M.); (Y.M.); (M.K.); (Y.M.)
- Correspondence: ; Tel.: +81-52-757-6774
| |
Collapse
|
17
|
Sakabe M, Ooizumi A, Fujita W, Aoyagi S, Sato S. Synthesis and Molecular Structure of Pseudo‐Hexacoordinated Pnictines Bearing 2‐Phenylpyridine Ligands. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000795] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Masato Sakabe
- Department of Chemistry Graduate School of Science Tokyo Metropolitan University 1‐1 Minami‐osawa, Hachioji 192‐0397 Tokyo Japan
| | - Akihisa Ooizumi
- Department of Chemistry Graduate School of Science Tokyo Metropolitan University 1‐1 Minami‐osawa, Hachioji 192‐0397 Tokyo Japan
| | - Wataru Fujita
- Faculty of Science and Technology Seikei University 3‐3‐1 Kichijoji‐kitamachi, Musashino 180‐8633 Tokyo Japan
| | - Shinobu Aoyagi
- Department of Information and Basic Science Nagoya City University 467‐8501 Nagoya Japan
| | - Soichi Sato
- Department of Chemistry Graduate School of Science Tokyo Metropolitan University 1‐1 Minami‐osawa, Hachioji 192‐0397 Tokyo Japan
| |
Collapse
|
18
|
Bukhvalova SY, Zhiganshina ER, Astaf’eva TV, Arsenyev MV, Baranov EV, Chesnokov SA, Poddel’sky AI. New Sterically Hindered Bis-o-Benzoquinones with Electron-Donor Bridging Groups and Related Binuclear Triphenylantimony(V) Catecholate Complexes. RUSS J COORD CHEM+ 2020. [DOI: 10.1134/s1070328420120027] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
|
19
|
Li L, Zhang Y, Li Y, Duan Y, Qian Y, Zhang P, Guo Q, Ding J. Polymeric Membrane Fluoride-Selective Electrodes Using Lewis Acidic Organo-Antimony(V) Compounds as Ionophores. ACS Sens 2020; 5:3465-3473. [PMID: 33112603 DOI: 10.1021/acssensors.0c01481] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Four Lewis acidic organo-antimony(V) compounds with strong binding affinity to fluoride were used for the first time as ionophores to fabricate polymeric membrane fluoride-selective electrodes. Improved detection limits and significant anti-Hofmeister selectivity could be achieved by optimizing ionophores, lipophilic additives, and plasticizers. Membrane electrodes fabricated with tetrakis-(pentafluorophenyl)stibonium (ionophore 2) performed best in detection limit, sensitivity, and selectivity. Optimal performance was obtained by fluoride with a slope of -59.5 mV/decade in the linear range of 1 × 10-5 to 4 × 10-2 M and a detection limit of 5 × 10-6 M. Studies on the influence of sample solution pH demonstrate that the best pH for fluoride determination is pH 3.0. All of the electrodes studied respond rapidly (in 1 min) in different concentrations of fluoride solutions. The anion-ionophore complex constants in the membrane phase determined using the segmented sandwich membrane method correlate well with the solution-phase binding data and determined selectivity sequence of the ion-selective electrodes. The possibility of real life application of the optimized electrodes was assessed by determination of fluoride concentrations in tap water.
Collapse
Affiliation(s)
- Long Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yihao Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Ying Li
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yinghui Duan
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Yi Qian
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Peidong Zhang
- College of Environment and Safety Engineering, Qingdao University of Science and Technology, Qingdao 266042, P. R. China
| | - Qingjie Guo
- State Key Laboratory of High-Efficiency Utilization of Coal and Green Chemical Engineering, Ningxia University, Yinchuan 750021, P. R. China
| | - Jiawang Ding
- Key Laboratory of Coastal Environmental Processes and Ecological Remediation and Shandong Provincial Key Laboratory of Coastal Environmental Processes, Yantai Institute of Coastal Zone Research (YIC), Chinese Academy of Sciences (CAS), Yantai 264003, Shandong, P. R. China
- Laboratory for Marine Biology and Biotechnology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266200, P. R. China
| |
Collapse
|
20
|
Ishijima K, Tanaka S, Imoto H, Naka K. 2-Arylbenzo[ b]arsoles: an experimental and computational study on the relationship between structural and photophysical properties. Dalton Trans 2020; 49:15612-15621. [PMID: 32966454 DOI: 10.1039/d0dt02669g] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Benzo[b]arsole derivatives, being arsenic analogues of indole, were synthesized by utilizing a safely prepared arsenic precursor. The structural and photophysical properties of the obtained 2-arylbenzo[b]arsoles were experimentally and computationally studied in comparison with those of 1,2,5-triarylarsoles and 9-phenylarsafluorene. It was found that the emission color and/or quantum yield were significantly affected by substituents on the luminescent center and metal-coordination to the arsenic atom. This is the first study on the structure-property relationship of benzo[b]arsole derivatives.
Collapse
Affiliation(s)
- Kosuke Ishijima
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Gashokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Susumu Tanaka
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Gashokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan.
| | - Hiroaki Imoto
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Gashokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan. and Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| | - Kensuke Naka
- Faculty of Molecular Chemistry and Engineering, Kyoto Institute of Technology, Gashokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan. and Materials Innovation Lab, Kyoto Institute of Technology, Goshokaido-cho, Matsugasaki, Sakyo-ku, Kyoto 606-8585, Japan
| |
Collapse
|
21
|
Zhou C, Lei J, Liu Y, Au C, Chen Y, Yin S. An organoantimony nitrate complex with azastibocine framework as water tolerant Lewis acid catalyst for the synthesis of 1,2‐disubstitued benzimidazoles. Appl Organomet Chem 2020. [DOI: 10.1002/aoc.5881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Cong Zhou
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| | - Jian Lei
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
- School of Medicine Hunan University of Chinese Medicine Changsha 410208 China
- College of Pharmacy Gannan Medical University Ganzhou 341000 China
| | - Yongping Liu
- School of Medicine Hunan University of Chinese Medicine Changsha 410208 China
| | - Chak‐Tong Au
- College of Chemistry and Chemical Engineering Hunan Institute of Engineering Xiangtan 411104 China
| | - Yi Chen
- School of Medicine Hunan University of Chinese Medicine Changsha 410208 China
| | - Shuang‐Feng Yin
- State Key Laboratory of Chemo/Biosensing and Chemometrics, Advanced Catalytic Engineering Research Center of the Ministry of Education, College of Chemistry and Chemical Engineering Hunan University Changsha 410082 China
| |
Collapse
|
22
|
Lo Y, Gabbai FP. Cyclometalated Iridium Bipyridine Complexes with Peripheral Antimony Substituents. Z Anorg Allg Chem 2020. [DOI: 10.1002/zaac.201900186] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Ying‐Hao Lo
- Department of Chemistry Texas A&M University 77843 College Station TX USA
| | - François P. Gabbai
- Department of Chemistry Texas A&M University 77843 College Station TX USA
| |
Collapse
|
23
|
|
24
|
Mehta M, Goicoechea JM. Nitrenium Salts in Lewis Acid Catalysis. Angew Chem Int Ed Engl 2020; 59:2715-2719. [DOI: 10.1002/anie.201915547] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Indexed: 12/26/2022]
Affiliation(s)
- Meera Mehta
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory Mansfield Rd. Oxford OX1 3TA UK
| | - Jose M. Goicoechea
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory Mansfield Rd. Oxford OX1 3TA UK
| |
Collapse
|
25
|
Dhiman S, Ahmad M, Singla N, Kumar G, Singh P, Luxami V, Kaur N, Kumar S. Chemodosimeters for optical detection of fluoride anion. Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213138] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
|
26
|
Plajer AJ, Zhu J, Pröhm P, Rizzuto FJ, Keyser UF, Wright DS. Conformational Control in Main Group Phosphazane Anion Receptors and Transporters. J Am Chem Soc 2020; 142:1029-1037. [PMID: 31877039 DOI: 10.1021/jacs.9b11347] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Anion binding by receptor molecules is a central field of modern chemistry which impacts areas of catalysis as well as biological and materials chemistry. As binding often requires high chemical stability under aerobic and aqueous conditions for practical applications, carbon-based anion receptors have dominated this field, with main group element analogues receiving far less attention. The recent observation that the air- and moisture-stable amino-cyclophosph(V)azanes of the type [RN(E)P(μ-NR)]2 (E = O, S, Se) can exhibit halide binding that is competitive with topologically related organic receptors (such as squaramides and thioureas) has motivated us here to explore how the binding properties of phosphazane receptors can be enhanced further. Coordination of transition metals by the two P,N metal coordination sites of the phosph(III)azane dimer [(2-py)NHP(μ-NtBu)]2 not only activates the receptor for anion binding (by fixing the optimum exo-exo conformation and polarizing the endocyclic N-H substituents) but also stabilizes the P2N2 ring to hydrolysis and oxidation. We show how the binding properties of these receptors can be modulated by the coordinated metal fragments and that they can bind chloride 1 to 2 orders of magnitude stronger than the related squaramides and thioureas. These features can be utilized in anion transport through phospholipid bilayers under aqueous conditions for which transport can be improved by 1 order of magnitude compared to the previous best phosphazane and thiourea transporters. This study demonstrates how careful design of inorganic systems can result in potent supramolecular functionality, beyond that observed for organic counterparts.
Collapse
Affiliation(s)
- Alex J Plajer
- Chemistry Department , Cambridge University , Lensfield Road , Cambridge CB2 1EW , U.K
| | - Jinbo Zhu
- Cavendish Laboratory, Department of Physics , Cambridge University , J. J. Thomson Avenue , Cambridge CB3 0HE , U.K
| | - Patrick Pröhm
- Institut für Chemie und Biochemie , Freie Universitaet Berlin Fabeckstr , 34-36 14159 Berlin , Germany
| | - Felix J Rizzuto
- Department of Chemistry , McGill University , 801 Sherbrooke Street W , Montreal , Quebec H3A 0B8 , Canada
| | - Ulrich F Keyser
- Cavendish Laboratory, Department of Physics , Cambridge University , J. J. Thomson Avenue , Cambridge CB3 0HE , U.K
| | - Dominic S Wright
- Chemistry Department , Cambridge University , Lensfield Road , Cambridge CB2 1EW , U.K
| |
Collapse
|
27
|
Affiliation(s)
- Meera Mehta
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory Mansfield Rd. Oxford OX1 3TA UK
| | - Jose M. Goicoechea
- Department of ChemistryUniversity of OxfordChemistry Research Laboratory Mansfield Rd. Oxford OX1 3TA UK
| |
Collapse
|
28
|
|
29
|
Plajer AJ, Zhu J, Proehm P, Bond AD, Keyser UF, Wright DS. Tailoring the Binding Properties of Phosphazane Anion Receptors and Transporters. J Am Chem Soc 2019; 141:8807-8815. [DOI: 10.1021/jacs.9b00504] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Alex J. Plajer
- Chemistry Department, Cambridge University, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Jinbo Zhu
- Cavendish Laboratory, Department of Physics, Cambridge University, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K
| | - Patrick Proehm
- Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, Fabeckstraße 34-36 14159 Berlin, Germany
| | - Andrew D. Bond
- Chemistry Department, Cambridge University, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Ulrich F. Keyser
- Cavendish Laboratory, Department of Physics, Cambridge University, J. J. Thomson Avenue, Cambridge CB3 0HE, U.K
| | - Dominic S. Wright
- Chemistry Department, Cambridge University, Lensfield Road, Cambridge CB2 1EW, U.K
| |
Collapse
|
30
|
Green JP, Wells JAL, Orthaber A. Heavier pnictogens - treasures for optical electronic and reactivity tuning. Dalton Trans 2019; 48:4460-4466. [PMID: 30810143 DOI: 10.1039/c9dt00574a] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
We highlight recent advances in organopnictogen chemistry contrasting the properties of lighter and heavier pnictogens. Exploring new bonding situations, discovering unprecedented reactivities and producing fascinating opto-electronic materials are some of the most prominent directions of current organopnicogen research. Expanding the chemical toolbox towards the heavier group 15 elements will continue to create new opportunities to tailor molecular properties for small molecule activation/reactivity and materials applications alike. This frontier article illustrates the elemental substitution approach in selected literature examples.
Collapse
Affiliation(s)
- Joshua P Green
- Synthetic Molecular Chemistry, Department of Chemistry, Ångström Laboratory, Uppsala University, Uppsala, Sweden.
| | | | | |
Collapse
|
31
|
Lee LM, Tsemperouli M, Poblador-Bahamonde AI, Benz S, Sakai N, Sugihara K, Matile S. Anion Transport with Pnictogen Bonds in Direct Comparison with Chalcogen and Halogen Bonds. J Am Chem Soc 2019; 141:810-814. [DOI: 10.1021/jacs.8b12554] [Citation(s) in RCA: 118] [Impact Index Per Article: 23.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Lucia M. Lee
- School of Chemistry and Biochemistry, NCCR Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - Maria Tsemperouli
- School of Chemistry and Biochemistry, NCCR Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | | | - Sebastian Benz
- School of Chemistry and Biochemistry, NCCR Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - Naomi Sakai
- School of Chemistry and Biochemistry, NCCR Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - Kaori Sugihara
- School of Chemistry and Biochemistry, NCCR Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| | - Stefan Matile
- School of Chemistry and Biochemistry, NCCR Chemical Biology, University of Geneva, CH-1211 Geneva, Switzerland
| |
Collapse
|
32
|
Trubenstein HJ, Moaven S, Vega M, Unruh DK, Cozzolino AF. Pnictogen bonding with alkoxide cages: which pnictogen is best? NEW J CHEM 2019. [DOI: 10.1039/c9nj03648b] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Antimony cages have the best balance between strength and directionality compared to the other congeners.
Collapse
Affiliation(s)
| | - Shiva Moaven
- Department of Chemistry & Biochemistry
- Texas Tech University
- Lubbock
- USA
| | - Maythe Vega
- Department of Chemistry & Biochemistry
- Texas Tech University
- Lubbock
- USA
| | - Daniel K. Unruh
- Department of Chemistry & Biochemistry
- Texas Tech University
- Lubbock
- USA
| | | |
Collapse
|
33
|
Yang M, Tofan D, Chen CH, Jack KM, Gabbaï FP. Digging the Sigma-Hole of Organoantimony Lewis Acids by Oxidation. Angew Chem Int Ed Engl 2018; 57:13868-13872. [PMID: 30151881 DOI: 10.1002/anie.201808551] [Citation(s) in RCA: 86] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2018] [Indexed: 12/14/2022]
Abstract
The development of group 15 Lewis acids is an area of active investigation that has led to numerous advances in anion sensing and catalysis. While phosphorus has drawn considerable attention, emerging research shows that organoantimony(III) reagents may also act as potent Lewis acids. Comparison of the properties of SbPh3 , Sb(C6 F5 )3 , and SbArF 3 with those of their tetrachlorocatecholate analogues SbPh3 Cat, Sb(C6 F5 )3 Cat, and SbArF 3 Cat (Cat=o-O2 C6 Cl4 , ArF =3,5-(CF3 )2 C6 H3 ) demonstrates that the Lewis acidity of electron deficient organoantimony(III) reagents can be readily enhanced by oxidation to the +V state-as verified by binding studies, organic reaction catalysis, and computational studies. The results are rationalized by explaining that oxidation of the antimony center leads to a lowering of the accepting σ* orbital and a deeper carving of the associated σ-hole.
Collapse
Affiliation(s)
- Mengxi Yang
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - Daniel Tofan
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - Chang-Hong Chen
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - Kevin M Jack
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University, College Station, TX, 77843, USA
| |
Collapse
|
34
|
Yang M, Tofan D, Chen C, Jack KM, Gabbaï FP. Digging the Sigma‐Hole of Organoantimony Lewis Acids by Oxidation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808551] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Mengxi Yang
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - Daniel Tofan
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - Chang‐Hong Chen
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - Kevin M. Jack
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| | - François P. Gabbaï
- Department of ChemistryTexas A&M University College Station TX 77843 USA
| |
Collapse
|
35
|
Benz S, Poblador-Bahamonde AI, Low-Ders N, Matile S. Catalysis with Pnictogen, Chalcogen, and Halogen Bonds. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201801452] [Citation(s) in RCA: 77] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Sebastian Benz
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland
| | | | - Nicolas Low-Ders
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland
| | - Stefan Matile
- Department of Organic Chemistry; University of Geneva; Geneva Switzerland
| |
Collapse
|
36
|
Benz S, Poblador-Bahamonde AI, Low-Ders N, Matile S. Catalysis with Pnictogen, Chalcogen, and Halogen Bonds. Angew Chem Int Ed Engl 2018; 57:5408-5412. [PMID: 29558562 PMCID: PMC5947745 DOI: 10.1002/anie.201801452] [Citation(s) in RCA: 245] [Impact Index Per Article: 40.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2018] [Indexed: 12/31/2022]
Abstract
Halogen‐ and chalcogen‐based σ‐hole interactions have recently received increased interest in non‐covalent organocatalysis. However, the closely related pnictogen bonds have been neglected. In this study, we introduce conceptually simple, neutral, and monodentate pnictogen‐bonding catalysts. Solution and in silico binding studies, together with high catalytic activity in chloride abstraction reactions, yield compelling evidence for operational pnictogen bonds. The depth of the σ holes is easily varied with different substituents. Comparison with homologous halogen‐ and chalcogen‐bonding catalysts shows an increase in activity from main group VII to V and from row 3 to 5 in the periodic table. Pnictogen bonds from antimony thus emerged as by far the best among the elements covered, a finding that provides most intriguing perspectives for future applications in catalysis and beyond.
Collapse
Affiliation(s)
- Sebastian Benz
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | | | - Nicolas Low-Ders
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| | - Stefan Matile
- Department of Organic Chemistry, University of Geneva, Geneva, Switzerland
| |
Collapse
|
37
|
Parke SM, Narreto MAB, Hupf E, McDonald R, Ferguson MJ, Hegmann FA, Rivard E. Understanding the Origin of Phosphorescence in Bismoles: A Synthetic and Computational Study. Inorg Chem 2018; 57:7536-7549. [PMID: 29553730 DOI: 10.1021/acs.inorgchem.8b00149] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
A series of bismuth heterocycles, termed bismoles, were synthesized via the efficient metallacycle transfer (Bi/Zr exchange) involving readily accessible zirconacycles. The luminescence properties of three structurally distinct bismoles were explored in detail via time-integrated and time-resolved photoluminescence spectroscopy using ultrafast laser excitation. Moreover, time-dependent density functional theory computations were used to interpret the nature of fluorescence versus phosphorescence in these bismuth-containing heterocycles and to guide the future preparation of luminescent materials containing heavy inorganic elements. Specifically, orbital character at bismuth within excited states is an important factor for achieving enhanced spin-orbit coupling and to promote phosphorescence. The low aromaticity of the bismole rings was demonstrated by formation of a CuCl π-complex, and the nature of the alkene-CuCl interaction was probed by real-space bonding indicators derived from Atoms-In-Molecules, the Electron Localizability Indicator, and the Non-Covalent Interaction index; such tools are of great value in interpreting nonstandard bonding environments within inorganic compounds.
Collapse
Affiliation(s)
- Sarah M Parke
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Mary A B Narreto
- Department of Physics , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - Emanuel Hupf
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Robert McDonald
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Michael J Ferguson
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| | - Frank A Hegmann
- Department of Physics , University of Alberta , Edmonton , Alberta T6G 2E1 , Canada
| | - Eric Rivard
- Department of Chemistry , University of Alberta , 11227 Saskatchewan Drive , Edmonton , Alberta T6G 2G2 , Canada
| |
Collapse
|
38
|
Kumar A, Yang M, Kim M, Gabbaï FP, Lee MH. OFF–ON Fluorescence Sensing of Fluoride by Donor–Antimony(V) Lewis Acids. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00759] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ajay Kumar
- Department
of Chemistry and EHSRC, University of Ulsan, Ulsan 44610, Republic of Korea
| | - Mengxi Yang
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Minji Kim
- Department
of Chemistry and EHSRC, University of Ulsan, Ulsan 44610, Republic of Korea
| | - François P. Gabbaï
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Min Hyung Lee
- Department
of Chemistry and EHSRC, University of Ulsan, Ulsan 44610, Republic of Korea
| |
Collapse
|