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Shiri F, Ho CC, Bissember AC, Ariafard A. Advancing Gold Redox Catalysis: Mechanistic Insights, Nucleophilicity-Guided Transmetalation, and Predictive Frameworks for the Oxidation of Aryl Gold(I) Complexes. Chemistry 2024; 30:e202302990. [PMID: 37967304 DOI: 10.1002/chem.202302990] [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: 09/14/2023] [Indexed: 11/17/2023]
Abstract
Gold redox catalysis, often facilitated by hypervalent iodine(III) reagents, offers unique reactivity but its progress is mainly hindered by an incomplete mechanistic understanding. In this study, we investigated the reaction between the gold(I) complexes [(aryl)Au(PR3 )] and the hypervalent iodine(III) reagent PhICl2 , both experimentally and computationally and provided an explanation for the formation of divergent products as the ligands bonded to the gold(I) center change. We tackled this essential question by uncovering an intriguing transmetalation mechanism that takes place between gold(I) and gold(III) complexes. We found that the ease of transmetalation is governed by the nucleophilicity of the gold(I) complex, [(aryl)Au(PR3 )], with greater nucleophilicity leading to a lower activation energy barrier. Remarkably, transmetalation is mainly controlled by a single orbital - the gold dx 2 -y 2 orbital. This orbital also has a profound influence on the reactivity of the oxidative addition step. In this way, the fundamental mechanistic basis of divergent outcomes in reactions of aryl gold(I) complexes with PhICl2 was established and these observations are reconciled from first principles. The theoretical model developed in this study provides a conceptual framework for anticipating the outcomes of reactions involving [(aryl)Au(PR3 )] with PhICl2 , thereby establishing a solid foundation for further advancements in this field.
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Affiliation(s)
- Farshad Shiri
- Department of Chemistry, Islamic Azad University, Central Tehran Branch, Poonak, Tehran, Iran
| | - Curtis C Ho
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania, 7001, Australia
| | - Alex C Bissember
- School of Natural Sciences - Chemistry, University of Tasmania, Hobart, Tasmania, 7001, Australia
| | - Alireza Ariafard
- Research School of Chemistry, Australian National University, Canberra, ACT, 2601, Australia
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2
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Mehara J, Koovakattil Surendran A, van Wieringen T, Setia D, Foroutan-Nejad C, Straka M, Rulíšek L, Roithová J. Cationic Gold(II) Complexes: Experimental and Theoretical Study. Chemistry 2022; 28:e202201794. [PMID: 35946558 DOI: 10.1002/chem.202201794] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Indexed: 01/07/2023]
Abstract
Gold(II) complexes are rare, and their application to the catalysis of chemical transformations is underexplored. The reason is their easy oxidation or reduction to more stable gold(III) or gold(I) complexes, respectively. We explored the thermodynamics of the formation of [AuII (L)(X)]+ complexes (L=ligand, X=halogen) from the corresponding gold(III) precursors and investigated their stability and spectral properties in the IR and visible range in the gas phase. The results show that the best ancillary ligands L for stabilizing gaseous [AuII (L)(X)]+ complexes are bidentate and tridentate ligands with nitrogen donor atoms. The electronic structure and spectral properties of the investigated gold(II) complexes were correlated with quantum chemical calculations. The results show that the molecular and electronic structure of the gold(II) complexes as well as their spectroscopic properties are very similar to those of analogous stable copper(II) complexes.
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Affiliation(s)
- Jaya Mehara
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
| | - Adarsh Koovakattil Surendran
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
| | - Teun van Wieringen
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
| | - Deeksha Setia
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
| | - Cina Foroutan-Nejad
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí. 2, 16610, Prague, Czech Republic
| | - Michal Straka
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí. 2, 16610, Prague, Czech Republic
| | - Lubomír Rulíšek
- Institute of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo náměstí. 2, 16610, Prague, Czech Republic
| | - Jana Roithová
- Department of Spectroscopy and Catalysis, Institute for Molecules and Materials, Radboud University Nijmegen, Heyendaalseweg 135, 6525AJ, Nijmegen (The, Netherlands
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3
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Bukvic AJ, Albrecht M. Pincer and Macrocyclic Pyridylidene Amide (PYA) Au III Complexes. Inorg Chem 2022; 61:14038-14045. [PMID: 35994319 DOI: 10.1021/acs.inorgchem.2c02030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Gold-based homogeneous catalysis is dominated by redox neutral AuI systems. Redox-active gold-based catalysts are less common, principally because of redox cycles between AuI and AuIII being hampered by unfavorable potentials. We report gold(III) complexes containing pincer-based, donor-flexible pyridylidene amide (PYA) ligands to address these issues. These complexes act as electron reservoirs through two limiting resonance structures consisting of either soft, imine coordination sites or harder, zwitterionic amide donors. We further alter the donor properties by using the ortho-, meta-, and para-pyridylidene amide variants of the PYA pincer arms. These bis-PYA pincer ligands exhibited a high contribution of amide coordination in the solid-state of the gold(III) complexes; however, the solution data suggests a high contribution from the neutral L-type resonance forms. This L-type contribution, primarily shown through cyclic voltammetry studies, prevents reversible gold(III) reduction and also disfavors abstraction of the ancillary chloride ligand. Furthermore, a novel macrocyclic-PYA ligand is introduced, which shows secondary metal-ligand interactions.
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Affiliation(s)
- Alexander J Bukvic
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
| | - Martin Albrecht
- Department of Chemistry, Biochemistry and Pharmaceutical Sciences, University of Bern, Freiestrasse 3, 3012 Bern, Switzerland
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4
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M. C. Luong L, D. Lowe. Marilyn M. Olmstead C, Balch AL. Structural Studies of Binuclear and Trinuclear Complexes Involving Silver and Gold with Bridging 2,2';6',2“-Terpyridine Ligands. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.116051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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5
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Escofet I, Zuccarello G, Echavarren AM. Gold-catalyzed enantioselective cyclizations and cycloadditions. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2022. [DOI: 10.1016/bs.adomc.2022.01.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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6
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Daley RA, Morrenzin AS, Neufeldt SR, Topczewski JJ. Mechanistic Investigation into the Gold-Catalyzed Decarboxylative Cross-Coupling of Iodoarenes. ACS Catal 2021. [DOI: 10.1021/acscatal.1c01631] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Ryan A. Daley
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Aaron S. Morrenzin
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Sharon R. Neufeldt
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Joseph J. Topczewski
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
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7
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Choroba K, Machura B, Szlapa-Kula A, Malecki JG, Raposo L, Roma-Rodrigues C, Cordeiro S, Baptista PV, Fernandes AR. Square planar Au(III), Pt(II) and Cu(II) complexes with quinoline-substituted 2,2':6',2″-terpyridine ligands: From in vitro to in vivo biological properties. Eur J Med Chem 2021; 218:113404. [PMID: 33823390 DOI: 10.1016/j.ejmech.2021.113404] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2021] [Revised: 03/08/2021] [Accepted: 03/19/2021] [Indexed: 12/18/2022]
Abstract
Cancer is the second leading cause of death worldwide. Cisplatin has challenged cancer treatment; however, resistance and side effects hamper its use. New agents displaying improved activity and more reduced side effects relative to cisplatin are needed. In this work we present the synthesis, characterization and biological activities of three complexes with quinoline-substituted 2,2':6',2″-terpyridine ligand: [Pt(4'-(2-quin)-terpy)Cl](SO3CF3) (1), [Au(4'-(2-quin)-terpy)Cl](PF6)2·CH3CN (2) and [Cu(4'-(2-quin)-terpy)Cl](PF6) (3). The three complexes displayed a high antiproliferative activity in ovarian carcinoma cell line (A2780) and even more noticeable in a colorectal carcinoma cell line (HCT116) following the order 3 > 2 > 1. The complexes IC50 are at least 20 × lower than the IC50 displayed by cisplatin (15.4 μM) in HCT116 cell line while displaying at the same time, much reduced cytotoxicity in a normal dermal fibroblast culture. These cytotoxic activities seem to be correlated with the inclination angles of 2-quin unit to the central pyridine. Interestingly, all complexes can interact with calf-thymus DNA (CT-DNA) in vitro via different mechanisms, although intercalation seems to be the preferred mechanism at least for 2 and 3 at higher concentrations of DNA. Moreover, circular dichroism (CD) data seems to indicate that complex 3, more planar, induces a high destabilization of the DNA double helix (shift from B-form to Z-form). Higher the deviation from planar, the lower the cytotoxicity displayed by the complexes. Cellular uptake may be also responsible for the different cytotoxicity exhibited by complexes with 3 > 2 >1. Complex 2 seems to enter cells more passively while complex 1 and 3 might enter cells via energy-dependent and -independent mechanisms. Complexes 1-3 were shown to induce ROS are associated with the increased apoptosis and autophagy. Moreover, all complexes dissipate the mitochondrial membrane potential leading to an increased BAX/BCL-2 ratio that triggered apoptosis. Complexes 2 and 3 were also shown to exhibit an anti-angiogenic effect by significantly reduce the number of newly formed blood vessel in a CAM model with no toxicity in this in vivo model. Our results seem to suggest that the increased cytotoxicity of complex 3 in HCT116 cells and its potential interest for further translation to pre-clinical mice xenografts might be associated with: 1) higher % of internalization of HCT116 cells via energy-dependent and -independent mechanisms; 2) ability to intercalate DNA and due to its planarity induced higher destabilization of DNA; 3) induce intracellular ROS that trigger apoptosis and autophagy; 4) low toxicity in an in vivo model of CAM; 5) potential anti-angiogenic effect.
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Affiliation(s)
- Katarzyna Choroba
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006, Katowice, Poland.
| | - Barbara Machura
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006, Katowice, Poland
| | - Agata Szlapa-Kula
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006, Katowice, Poland
| | - Jan G Malecki
- Institute of Chemistry, University of Silesia, Szkolna 9, 40-006, Katowice, Poland
| | - Luis Raposo
- UCIBIO, Departamento de Ciências da Vida, NOVA School of Science and Technology, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Catarina Roma-Rodrigues
- UCIBIO, Departamento de Ciências da Vida, NOVA School of Science and Technology, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Sandra Cordeiro
- UCIBIO, Departamento de Ciências da Vida, NOVA School of Science and Technology, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Pedro V Baptista
- UCIBIO, Departamento de Ciências da Vida, NOVA School of Science and Technology, Campus de Caparica, 2829-516, Caparica, Portugal
| | - Alexandra R Fernandes
- UCIBIO, Departamento de Ciências da Vida, NOVA School of Science and Technology, Campus de Caparica, 2829-516, Caparica, Portugal.
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8
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Daley RA, Morrenzin AS, Neufeldt SR, Topczewski JJ. Gold Catalyzed Decarboxylative Cross-Coupling of Iodoarenes. J Am Chem Soc 2020; 142:13210-13218. [PMID: 32634305 DOI: 10.1021/jacs.0c06244] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
This report details a decarboxylative cross-coupling of (hetero)aryl carboxylates with iodoarenes in the presence of a gold catalyst (>25 examples, up to 96% yield). This reaction is site specific, which overcomes prior limitations associated with gold catalyzed oxidative coupling reactions. The reactivity of the (hetero)aryl carboxylate correlates qualitatively to the field effect parameter (Fortho). Reactions with isolated gold complexes and DFT calculations support a mechanism proceeding through oxidative addition at a gold(I) cation with decarboxylation being viable at either a gold(I) or a silver(I) species.
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Affiliation(s)
- Ryan A Daley
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
| | - Aaron S Morrenzin
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Sharon R Neufeldt
- Department of Chemistry and Biochemistry, Montana State University, Bozeman, Montana 59717, United States
| | - Joseph J Topczewski
- Department of Chemistry, University of Minnesota Twin Cities, Minneapolis, Minnesota 55455, United States
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9
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Io K, Ng S, Yeung C, Wong C. Synthesis, Spectroscopic and Computational Studies of Rhodium(III) Complexes Bearing N‐Heterocyclic Carbene‐Based C
^
N
^
C Pincer Ligand and Bipyridine/Terpyridine. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000411] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Kai‐Wa Io
- Department of Chemistry City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong SAR
| | - Sze‐Wing Ng
- Department of Chemistry City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong SAR
| | - Chi‐Fung Yeung
- Department of Chemistry City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong SAR
| | - Chun‐Yuen Wong
- Department of Chemistry City University of Hong Kong Tat Chee Avenue Kowloon Hong Kong SAR
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10
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Raju S, Singh HB, Butcher RJ. Metallophilic interactions: observations of the shortest metallophilicinteractions between closed shell (d10⋯d10, d10⋯d8, d8⋯d8) metal ions [M⋯M′ M = Hg(ii) and Pd(ii) and M′ = Cu(i), Ag(i), Au(i), and Pd(ii)]. Dalton Trans 2020; 49:9099-9117. [PMID: 32573621 DOI: 10.1039/d0dt01008a] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
The salt metathesis reaction of two equivalents of 8-lithioquinoline (C6H6NLi) with HgBr2 afforded bis(quinoline-8-yl)mercury, [(C6H6N)2Hg].
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Affiliation(s)
- Saravanan Raju
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Harkesh B. Singh
- Department of Chemistry
- Indian Institute of Technology Bombay
- Mumbai 400076
- India
| | - Ray J. Butcher
- Department of Chemistry
- Howard University
- Washington DC 20059
- USA
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11
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12
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Miao J, Nie Y, Xiong Z, Chai Y, Fu S, Yan H. Stimulus-responsive reversible thermochromism and exciplex emission of a Zn(ii) complex and selective sensing of NH3 gas. Dalton Trans 2019; 48:5000-5006. [DOI: 10.1039/c9dt00764d] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A Zn(ii) complex exhibits reversible thermochromism and emission switch, and the resulting free radical species responds fast and selectively toward NH3.
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Affiliation(s)
- Jinling Miao
- School of Chemistry and Chemical Engineering
- Institute for Smart Materials & Engineering
- University of Jinan
- 250022 Jinan
- P. R. China
| | - Yong Nie
- School of Chemistry and Chemical Engineering
- Institute for Smart Materials & Engineering
- University of Jinan
- 250022 Jinan
- P. R. China
| | - Zhixin Xiong
- School of Chemistry and Chemical Engineering
- Institute for Smart Materials & Engineering
- University of Jinan
- 250022 Jinan
- P. R. China
| | - Yongshuai Chai
- School of Chemistry and Chemical Engineering
- Institute for Smart Materials & Engineering
- University of Jinan
- 250022 Jinan
- P. R. China
| | - Shuqing Fu
- School of Chemistry and Chemical Engineering
- Institute for Smart Materials & Engineering
- University of Jinan
- 250022 Jinan
- P. R. China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry
- School of Chemistry and Chemical Engineering
- Nanjing University
- 210023 Nanjing
- P. R. China
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13
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Bocian A, Brykczyńska D, Kubicki M, Hnatejko Z, Wałęsa-Chorab M, Gorczyński A, Patroniak V. Complexation behavior of 6,6″-dimethyl-2,2′:6′,2″-terpyridine ligand with Co(II), Au(III), Ag(I), Zn(II) and Cd(II) ions: Synthesis, spectroscopic characterization and unusual structural motifs. Polyhedron 2019. [DOI: 10.1016/j.poly.2018.09.073] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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14
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Montanel-Pérez S, Izaga A, Laguna A, Villacampa MD, Gimeno MC. Synthesis of Gold(III) Complexes with Bidentate Amino-Thiolate Ligands as Precursors of Novel Bifunctional Acyclic Diaminocarbenes. ACS OMEGA 2018; 3:13097-13103. [PMID: 31458030 PMCID: PMC6645091 DOI: 10.1021/acsomega.8b01547] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 09/26/2018] [Indexed: 06/10/2023]
Abstract
Two neutral bis(pentafluorophenyl)thiolate gold(III) complexes with the unsymmetrical S^N ligands 2-aminothiophenol or cysteamine have been synthesized and their reactivity has been studied. Homo- and heterodinuclear compounds were obtained by their coordination to gold(I) or silver(I) derivatives through the sulfur atom. Interestingly, a tetranuclear derivative bearing short gold(I)···gold(I) and the more unusual gold(I)···gold(III) interactions has been prepared. These amino-thiolate derivatives can be used as precursors for the synthesis of novel gold(III) acyclic diaminocarbene complexes by reaction with isocyanides CNR. The nucleophilic attack of the amino group to isocyanide molecules affords the synthesis of unprecedented bidentate C^S acyclic diaminocarbene ligands. All of the complexes are air- and moisture-stable at room temperature and have been spectroscopically and structurally characterized.
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15
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Ube H, Zhang Q, Shionoya M. A Carbon-Centered Hexagold(I) Cluster Supported by N-Heterocyclic Carbene Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00291] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Hitoshi Ube
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-003, Japan
| | - Qian Zhang
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-003, Japan
| | - Mitsuhiko Shionoya
- Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-003, Japan
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16
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Influence of structural changes on photophysical properties of terpyridine derivates: Experimental studies and theoretical calculations. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.011] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Radisavljević S, Bratsos I, Scheurer A, Korzekwa J, Masnikosa R, Tot A, Gligorijević N, Radulović S, Rilak Simović A. New gold pincer-type complexes: synthesis, characterization, DNA binding studies and cytotoxicity. Dalton Trans 2018; 47:13696-13712. [DOI: 10.1039/c8dt02903b] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The complex [Au(H2LtBu)Cl]Cl2(1) induced perturbations of the cell cycle and led to apoptosis in human melanoma A375 cells.
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Affiliation(s)
| | - Ioannis Bratsos
- I.N.N
- Department of Physical Chemistry
- NCSR “Demokritos”
- Athens
- Greece
| | - Andreas Scheurer
- Inorganic Chemistry
- Department of Chemistry and Pharmacy
- University of Erlangen-Nürnberg
- Erlangen
- Germany
| | - Jana Korzekwa
- Inorganic Chemistry
- Department of Chemistry and Pharmacy
- University of Erlangen-Nürnberg
- Erlangen
- Germany
| | - Romana Masnikosa
- Department of Physical Chemistry
- Vinča Institute of Nuclear Sciences
- University of Belgrade
- 11000 Belgrade
- Serbia
| | - Aleksandar Tot
- University of Novi Sad
- Faculty of Sciences
- Department of Chemistry
- Biochemistry and Environmental Protection
- 21000 Novi Sad
| | | | - Siniša Radulović
- Institute for Oncology and Radiology of Serbia
- 11000 Belgrade
- Serbia
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18
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Maroń A, Czerwińska K, Machura B, Raposo L, Roma-Rodrigues C, Fernandes AR, Małecki JG, Szlapa-Kula A, Kula S, Krompiec S. Spectroscopy, electrochemistry and antiproliferative properties of Au(iii), Pt(ii) and Cu(ii) complexes bearing modified 2,2′:6′,2′′-terpyridine ligands. Dalton Trans 2018; 47:6444-6463. [DOI: 10.1039/c8dt00558c] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Impact of the metal centre and the substituent incorporated into a terpy framework.
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19
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Albayer M, Corbo R, Hill AF, Dutton JL. A simple halide and silver-free synthesis of Echavarren's catalyst directly from gold powder. Dalton Trans 2018; 47:1321-1324. [DOI: 10.1039/c7dt04494a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A simple synthesis of Echavarren's catalyst via oxidation of gold powder with [NO][BF4] in acetonitrile followed by addition of Johnphos is presented.
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Affiliation(s)
- Mohammad Albayer
- Department of Chemistry and Physics
- La Trobe Institute of Molecular Sciences
- La Trobe University
- Melbourne
- Australia
| | - Robert Corbo
- Department of Chemistry and Physics
- La Trobe Institute of Molecular Sciences
- La Trobe University
- Melbourne
- Australia
| | - Anthony F. Hill
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Jason L. Dutton
- Department of Chemistry and Physics
- La Trobe Institute of Molecular Sciences
- La Trobe University
- Melbourne
- Australia
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20
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Shakirova JR, Tomashenko OA, Grachova EV, Starova GL, Sizov VV, Khlebnikov AF, Tunik SP. Gold(I)–Alkynyl Complexes with an N‐Donor Heterocyclic Ligand: Synthesis and Photophysical Properties. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700731] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Julia R. Shakirova
- Institute of Chemistry St. Petersburg State University 7/9 Universitetskaya emb. 199034 St. Petersburg Russia
| | - Olesya A. Tomashenko
- Institute of Chemistry St. Petersburg State University 7/9 Universitetskaya emb. 199034 St. Petersburg Russia
| | - Elena V. Grachova
- Institute of Chemistry St. Petersburg State University 7/9 Universitetskaya emb. 199034 St. Petersburg Russia
| | - Galina L. Starova
- Institute of Chemistry St. Petersburg State University 7/9 Universitetskaya emb. 199034 St. Petersburg Russia
| | - Vladimir V. Sizov
- Institute of Chemistry St. Petersburg State University 7/9 Universitetskaya emb. 199034 St. Petersburg Russia
| | - Alexander F. Khlebnikov
- Institute of Chemistry St. Petersburg State University 7/9 Universitetskaya emb. 199034 St. Petersburg Russia
| | - Sergey P. Tunik
- Institute of Chemistry St. Petersburg State University 7/9 Universitetskaya emb. 199034 St. Petersburg Russia
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21
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Gavara R, Pinto A, Donamaría R, Olmos ME, López de Luzuriaga JM, Rodríguez L. Polarized Supramolecular Aggregates Based on Luminescent Perhalogenated Gold Derivatives. Inorg Chem 2017; 56:11946-11955. [PMID: 28891649 DOI: 10.1021/acs.inorgchem.7b01901] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The reaction of [Au(C6F5)(tht)] (tht = tetrahydrothiophene) with 1,3,5-triaza-7-phosphaadamantane (PTA) and 3,7-diacetyl-1,3,7-triaza-5-phosphabicyclo[3.3.1]nonane (DAPTA) leads to the formation of [Au(C6F5)(phosph)] (phosph = PTA, 1; phosph = DAPTA, 2). The compounds are slightly soluble in water and aggregate at higher concentrations, giving rise to the formation of needle- and rodlike structures (1) and well-organized spherical aggregates (2). Compounds 1 and 2 were reacted with AgPF6, giving rise to the formation in all cases of luminescent water-soluble 1:1 Au···Ag heterometallic complexes, as evidenced by X-ray crystal structure determination. The use of different silver salts that differ on the counterion induces changes in the resulting luminescence and aggregation morphology.
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Affiliation(s)
- Raquel Gavara
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona , Martí i Franquès 1-11, E-08028 Barcelona, Spain
| | - Andrea Pinto
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona , Martí i Franquès 1-11, E-08028 Barcelona, Spain
| | - Rocío Donamaría
- Centro de Investigación en Síntesis Química, Departamento de Química, Complejo Científico Tecnológico, Universidad de la Rioja , 26004 Logroño, Spain
| | - M Elena Olmos
- Centro de Investigación en Síntesis Química, Departamento de Química, Complejo Científico Tecnológico, Universidad de la Rioja , 26004 Logroño, Spain
| | - José M López de Luzuriaga
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona , Martí i Franquès 1-11, E-08028 Barcelona, Spain.,Centro de Investigación en Síntesis Química, Departamento de Química, Complejo Científico Tecnológico, Universidad de la Rioja , 26004 Logroño, Spain
| | - Laura Rodríguez
- Departament de Química Inorgànica i Orgànica, Secció de Química Inorgànica, Universitat de Barcelona , Martí i Franquès 1-11, E-08028 Barcelona, Spain.,Institut de Nanociència i Nanotecnologia (IN2UB), Universitat de Barcelona , 08028 Barcelona, Spain
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22
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Czerwińska K, Golec M, Skonieczna M, Palion-Gazda J, Zygadło D, Szlapa-Kula A, Krompiec S, Machura B, Szurko A. Cytotoxic gold(iii) complexes incorporating a 2,2′:6′,2′′-terpyridine ligand framework – the impact of the substituent in the 4′-position of a terpy ring. Dalton Trans 2017; 46:3381-3392. [DOI: 10.1039/c6dt04584g] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The possibility of tuning the cytotoxic activity of Au(iii) complexes by structural modifications of a terpy ligand has been examined.
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Affiliation(s)
- K. Czerwińska
- Department of Crystallography
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
- Poland
| | - M. Golec
- August Chełkowski Institute of Physics
- University of Silesia
- 40-007 Katowice
- Poland
- Silesia Center for Education and Interdisciplinary Research
| | - M. Skonieczna
- Silesian University of Technology
- Center Biotechnology Bioengineering and Bioinformatics
- Gliwice
- Poland
- Silesian University of Technology
| | - J. Palion-Gazda
- Department of Crystallography
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
- Poland
| | - D. Zygadło
- August Chełkowski Institute of Physics
- University of Silesia
- 40-007 Katowice
- Poland
- Silesia Center for Education and Interdisciplinary Research
| | - A. Szlapa-Kula
- Department of Inorganic
- Organometallic Chemistry and Catalysis
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
| | - S. Krompiec
- Department of Inorganic
- Organometallic Chemistry and Catalysis
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
| | - B. Machura
- Department of Crystallography
- Institute of Chemistry
- University of Silesia
- 40-006 Katowice
- Poland
| | - A. Szurko
- August Chełkowski Institute of Physics
- University of Silesia
- 40-007 Katowice
- Poland
- Silesia Center for Education and Interdisciplinary Research
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23
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Corbo R, Ryan GF, Haghighatbin MA, Hogan CF, Wilson DJD, Hulett MD, Barnard PJ, Dutton JL. Access to the Parent Tetrakis(pyridine)gold(III) Trication, Facile Formation of Rare Au(III) Terminal Hydroxides, and Preliminary Studies of Biological Properties. Inorg Chem 2016; 55:2830-9. [PMID: 26930516 DOI: 10.1021/acs.inorgchem.5b02667] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
In this paper we report on the use of [NO][BF4] to access tricationic tetrakis(pyridine)gold(III) from Au powder, a species inaccessible using the more traditional (tetrahydrothiophene)AuCl route. It is then demonstrated that this family of compounds can be used to access new terminal Au(III) hydroxides, a challenging class of compounds, and the first crystallographically characterized examples employing bidentate ligands. Finally, preliminary biological studies indicate good activity for derivatives featuring polydentate ligands against the HeLa and PC3 cell lines but also strong inhibition of primary HUVEC cells.
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Affiliation(s)
- Robert Corbo
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University , Melbourne, Victoria 3086, Australia
| | - Gemma F Ryan
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University , Melbourne, Victoria 3086, Australia
| | - Mohammad A Haghighatbin
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University , Melbourne, Victoria 3086, Australia
| | - Conor F Hogan
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University , Melbourne, Victoria 3086, Australia
| | - David J D Wilson
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University , Melbourne, Victoria 3086, Australia
| | - Mark D Hulett
- Department of Biochemistry and Genetics, La Trobe Institute for Molecular Science, La Trobe University , Melbourne, Victoria 3086, Australia
| | - Peter J Barnard
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University , Melbourne, Victoria 3086, Australia
| | - Jason L Dutton
- Department of Chemistry and Physics, La Trobe Institute for Molecular Science, La Trobe University , Melbourne, Victoria 3086, Australia
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