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Sheng W, Rajeshkumar T, Zhao Y, Maron L, Zhu C. Electronic Delocalization and σ-Aromaticity in Heterometallic Cluster with Multiple Thorium-Palladium Bonds. J Am Chem Soc 2024; 146:12790-12798. [PMID: 38684067 DOI: 10.1021/jacs.4c03058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/02/2024]
Abstract
Research on metal-metal bonds involving f-block actinides, such as thorium, lags far behind the well-studied metal-metal bonds of d-block transition metals. The complexes with Th-TM bonds are extremely rare; all previously identified examples have only a single Th-TM bond with the Th center at an invariably +IV oxidation state. Herein, we report a series of Th2Pdn (n = 2, 3, and 6) clusters (complexes 3, 4, and 7) with multiple Th(III)-Pd bonds. Theoretical studies reveal that the Th2Pdn unit allows electronic delocalization and σ aromaticity, leading to unexpected closed-shell singlet structures for these Th(III) species. This electronic delocalization is evident in the highest occupied molecular orbital of Th(III) complexes and facilitates a 2e reduction of alkyne by complex 7, resulting in the formation of 8. Complexes 7 and 8 are distinctive in featuring a Th2Pd6 core with six and eight Th-Pd bonds, respectively, making them the largest known d-f heterometallic clusters exhibiting metal-metal bonding.
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Affiliation(s)
- Weiming Sheng
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Thayalan Rajeshkumar
- LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Yue Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
| | - Laurent Maron
- LPCNO, CNRS & INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Congqing Zhu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
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2
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Singh S, Shinde VN, Kumar S, Meena N, Bhuvanesh N, Rangan K, Kumar A, Joshi H. Mono and Dinuclear Palladium Pincer Complexes of NNSe Ligand as a Catalyst for Decarboxylative Direct C-H Heteroarylation of (Hetero)arenes. Chem Asian J 2023; 18:e202300628. [PMID: 37602812 DOI: 10.1002/asia.202300628] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/18/2023] [Accepted: 08/18/2023] [Indexed: 08/22/2023]
Abstract
This report describes the synthesis of a new NNSe pincer ligand and its mono- and dinuclear palladium(II) pincer complexes. In the absence of a base, a dinuclear palladium pincer complex (C1) was isolated, while in the presence of Et3 N base a mononuclear palladium pincer complex (C2) was obtained. The new ligand and complexes were characterized using techniques like 1 H, 13 C{1 H} nuclear magnetic resonance (NMR), fourier transform infrared (FTIR), high-resolution mass spectrometry (HRMS), ultraviolet-visible (UV-Visible), and cyclic voltammetry. Both the complexes showed pincer coordination mode with a distorted square planar geometry. The complex C1 has two pincer ligands attached through a Pd-Pd bond in a dinuclear pincer fashion. The air and moisture-insensitive, thermally robust palladium pincer complexes were used as the catalyst for decarboxylative direct C-H heteroarylation of (hetero)arenes. Among the complexes, dinuclear pincer complex C1 showed better catalytic activity. A variety of (hetero)arenes were successfully activated (43-87 % yield) using only 2.5 mol % of catalyst loading under mild reaction conditions. The PPh3 and Hg poisoning experiments suggested a homogeneous nature of catalysis. A plausible reaction pathway was proposed for the dinuclear palladium pincer complex catalyzed decarboxylative C-H bond activation reaction of (hetero)arenes.
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Affiliation(s)
- Sohan Singh
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Vikki N Shinde
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, 333031, India
| | - Sunil Kumar
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
| | - Neha Meena
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, 333031, India
| | - Nattamai Bhuvanesh
- Department of Chemistry, Texas A&M University, PO Box 30012, College Station, Texas, 77842-3012, USA
| | - Krishnan Rangan
- Department of Chemistry, Birla Institute of Technology and Science Pilani, Hyderabad Campus, Telangana, 500078, India
| | - Anil Kumar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, 333031, India
| | - Hemant Joshi
- ISC Laboratory, Department of Chemistry, School of Chemical Sciences and Pharmacy, Central University of Rajasthan, NH-8, Bandarsindri, Ajmer, Rajasthan, 305817, India
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3
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Sarwar A, Bahron H, Nabi N, Naureen B, Sherino B, Ali A, Alias Y. Solid state dual emissive binuclear Cobalt (II) azomethine complexes: Synthesis, characterization, thermal stabilities and photoluminescence studies. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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4
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Park HJ, Jang JH, Lee JH, Hwang DH. Highly Efficient Deep-Blue Phosphorescent OLEDs Based on a Trimethylsilyl-Substituted Tetradentate Pt(II) Complex. ACS APPLIED MATERIALS & INTERFACES 2022; 14:34901-34908. [PMID: 35867806 DOI: 10.1021/acsami.2c06891] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Compared to Ir(III) complexes with octahedral geometries, Pt(II) complexes with square planar geometries show superior optical properties because their flat shapes lead to an orientation that enhances the outcoupling of organic light-emitting diodes (OLEDs). However, the flat shapes of Pt(II) complexes typically induce a bathochromic shift, limiting their application in high-performance deep-blue phosphorescent OLEDs with high color purity. In this study, bulky trimethylsilyl (TMS)-substituted blue phosphorescent Pt(II) complex (PtON7-TMS) is successfully synthesized to improve color purity. The TMS substituent containing Si atom effectively suppresses intermolecular interaction and aggregation even when the complex concentration in the film state is higher than 30 wt %. As a result, the PtON7-TMS-based OLEDs exhibit a maximum external quantum efficiency of 21.4%, along with a pure-blue color of CIE (0.14, 0.09) at 20 wt % doping concentration and a full-width at half maximum of 30 nm. The pure blue color is maintained at a higher doping concentration (>30 wt %).
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Affiliation(s)
- Hea Jung Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Jee-Hun Jang
- Department of Materials Science and Engineering, 3D Convergence Center, Inha University, Incheon 22212, Republic of Korea
| | - Jeong-Hwan Lee
- Department of Materials Science and Engineering, 3D Convergence Center, Inha University, Incheon 22212, Republic of Korea
| | - Do-Hoon Hwang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
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5
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Park HJ, Boelke CL, Cheong PHY, Hwang DH. Dinuclear Pt(II) Complexes with Red and NIR Emission Governed by Ligand Control of the Intramolecular Pt-Pt Distance. Inorg Chem 2022; 61:5178-5183. [PMID: 35320671 DOI: 10.1021/acs.inorgchem.1c03967] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Red and near-infrared (NIR) phosphorescent double-decker dinuclear Pt(II) complexes were synthesized, and their structural and spectroscopic properties were characterized. The Pt(II) complexes, which are composed of achiral ligands and are themselves chiral, were shown to exist as racemic mixtures using single-crystal X-ray crystallography. The Pt(II) complexes have different intramolecular Pt-Pt distances that are governed by the electronic characteristics of the component C^N ligands. Specifically, strengthening of π-back-donation between Pt(II) and N atom of the C^N ligand leads to shortening of the Pt-Pt distance. The results of both experimental and computational investigations show that the Pt-Pt distances in the dinuclear Pt(II) complexes significantly influence the band gap energies and corresponding emission wavelengths. Consequently, the uncovered C^N ligand based method to finely control intramolecular Pt-Pt distances in dinuclear Pt(II) complexes can be utilized as a guideline for the design of the double-decker dinuclear Pt(II) complexes with red and NIR tuned phosphorescence.
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Affiliation(s)
- Hea Jung Park
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
| | - Claire Louise Boelke
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Paul Ha-Yeon Cheong
- Department of Chemistry, Oregon State University, Corvallis, Oregon 97331, United States
| | - Do-Hoon Hwang
- Department of Chemistry and Chemistry Institute for Functional Materials, Pusan National University, Busan 46241, Republic of Korea
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7
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Qurrat-Ul-Ain, Abid A, Lateef M, Rafiq N, Eijaz S, Tauseef S. Multi-activity tetracoordinated pallado-oxadiazole thiones as anti-inflammatory, anti-Alzheimer, and anti-microbial agents: Structure, stability and bioactivity comparison with pallado-hydrazides. Biomed Pharmacother 2021; 146:112561. [PMID: 34965504 DOI: 10.1016/j.biopha.2021.112561] [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: 10/05/2021] [Revised: 12/16/2021] [Accepted: 12/19/2021] [Indexed: 11/28/2022] Open
Abstract
Herein, we report a comparative study based on structure, thermal and solution stability, and biopotency against lipoxygenase (LOX), butyrylcholinesterase (BChE) and microbes for Pd(II) compounds of N,O,S bearing 5-(C5H4XR)-1,3,4-oxadiazole-2-thiones (L') of type [PdL'Cl2] (P'n) and N,O bearing respective hydrazides (L) of type trans-[PdL2Cl2] (Pn) {X = C, R = 4-I, 2-Br, 4-NO2, 3-NO2, 2-Cl, 3-Cl (n = 1-6, serially); X = N (n = 7)}. Spectral techniques (IR, EI-MS, NMR) and physicochemical evaluations successfully characterized the new compounds. The L' behaved as bidentate S-N donors bonded through exocyclic sulfur and N-3' nitrogen, while L acted as amino N donors. UV-vis (solution speciation) and thermal degradation profiles consistently confirmed the greater stability for P'n than Pn compounds. These compounds manifested varying degree in vitro potential to inhibit LOX, BChE and several bacteria and fungi, affected mainly by Pd(II) presence, M-L binding mode, nature and position of R, or halo groups electronegativity. Molecular docking with human 5-LOX and BChE further validated the respective experimental inhibition findings and explored several putative mechanistic interactions (H-bonding, π-stacking, π-alkyl, π-S, etc.) at the enzyme active sites. Pn generally offered superior antimicrobial and anti-LOX (anti-inflammatory) potential than respective P'n compounds, with P3/P'5, P(2,3,7)/P'3, and P6 being comparable, better and equivalent to ampicillin, nystatin and baicalein, the reference antibacterial, antifungal and anti-LOX drugs, respectively. Contrarily, the anti-BChE activity of P'n was found better than Pn compounds, showing P'2/P1 as the most promising anti-Alzheimer drug candidates. This study bares important structural and mechanistic aspects in optimizing antimicrobial, anti-inflammatory and anti-Alzheimer activities, highlighting some potential future pallado-drug candidates.
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Affiliation(s)
- Qurrat-Ul-Ain
- Department of Chemistry, University of Karachi, Karachi 75270, Pakistan.
| | - Aisha Abid
- Department of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | - Mehreen Lateef
- Multi-Disciplinary Research Laboratory (MDRL), Bahria University Medical and Dental College, Karachi 75500, Pakistan
| | - Naushaba Rafiq
- Department of Chemistry, University of Karachi, Karachi 75270, Pakistan
| | - Sana Eijaz
- Department of Microbiology, University of Karachi, Karachi 75270, Pakistan
| | - Saima Tauseef
- Department of Chemistry, Federal Urdu University of Arts, Science and Technology, Gulshan-e-Iqbal Campus, Karachi 75300, Pakistan
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8
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Gao H, Yu R, Ma Z, Gong Y, Zhao B, Lv Q, Tan Z. Recent advances of organometallic complexes in emerging photovoltaics. JOURNAL OF POLYMER SCIENCE 2021. [DOI: 10.1002/pol.20210592] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Huaizhi Gao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Runnan Yu
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Zongwen Ma
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Yongshuai Gong
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Biao Zhao
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Qianglong Lv
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
| | - Zhan'ao Tan
- Beijing Advanced Innovation Center for Soft Matter Science and Engineering, College of Materials Science and Engineering, State Key Laboratory of Organic‐Inorganic Composites Beijing University of Chemical Technology Beijing China
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9
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Valencia-Loza SDJ, López-Olvera A, Martínez-Ahumada E, Martínez-Otero D, Ibarra IA, Jancik V, Percástegui EG. SO 2 Capture and Oxidation in a Pd6L8 Metal-Organic Cage. ACS APPLIED MATERIALS & INTERFACES 2021; 13:18658-18665. [PMID: 33871959 DOI: 10.1021/acsami.1c00408] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The facile and green preparation of novel materials that capture sulfur dioxide (SO2) with significant uptake at room temperature remains challenging, but it is crucial for public health and the environment. Herein, we explored for the first time the SO2 adsorption within microporous metal-organic cages using the palladium(II)-based [Pd6L8](NO3)36 tetragonal prism 1, assembled in water under mild conditions. Notably and despite the low BET surface area of 1 (111 m2 g-1), sulfur dioxide was found to be irreversibly and strongly adsorbed within the activated cage at 298 K (up to 6.07 mmol g-1). The measured values for the molar enthalpy of adsorption (ΔHads) coupled to the FTIR analyses imply a chemisorption process that involves the direct interaction of SO2 with Pd(II) sites and the subsequent oxidation of this toxic chemical by the action of the nitrate anions in 1. To the best of our knowledge, this is the first reported metal-organic cage that proves useful for SO2 adsorption. Metallosupramolecular adsorbents such as 1 could enable new detection applications and suggest that the integration of soft metal ions and self-assembly of molecular cages are a potential means for the easy tuning of SO2 adsorption capabilities and behavior.
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Affiliation(s)
- Sergio de Jesús Valencia-Loza
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510 México
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Carretera Toluca-Atlacomulco Km 14.5, Toluca, Estado de México 50200, México
| | - Alfredo López-Olvera
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del Coyoacán, México D.F. 04510, México
| | - Eva Martínez-Ahumada
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del Coyoacán, México D.F. 04510, México
| | - Diego Martínez-Otero
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510 México
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Carretera Toluca-Atlacomulco Km 14.5, Toluca, Estado de México 50200, México
| | - Ilich A Ibarra
- Laboratorio de Fisicoquímica y Reactividad de Superficies (LaFReS), Instituto de Investigaciones en Materiales, Universidad Nacional Autónoma de México, Circuito Exterior s/n, CU, Del Coyoacán, México D.F. 04510, México
| | - Vojtech Jancik
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510 México
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Carretera Toluca-Atlacomulco Km 14.5, Toluca, Estado de México 50200, México
| | - Edmundo G Percástegui
- Universidad Nacional Autónoma de México, Instituto de Química, Ciudad Universitaria, Ciudad de México 04510 México
- Centro Conjunto de Investigación en Química Sustentable, UAEM-UNAM. Carretera Toluca-Atlacomulco Km 14.5, Toluca, Estado de México 50200, México
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10
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Jain VK. Cyclometalated group-16 compounds of palladium and platinum: Challenges and opportunities. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213546] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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11
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Synthesis, characterization, crystal structure and catalytic activity of amido azo palladium(II) complex. TRANSIT METAL CHEM 2020. [DOI: 10.1007/s11243-020-00407-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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12
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Miroslaw B. Homo- and Hetero-Oligonuclear Complexes of Platinum Group Metals (PGM) Coordinated by Imine Schiff Base Ligands. Int J Mol Sci 2020; 21:E3493. [PMID: 32429112 PMCID: PMC7278988 DOI: 10.3390/ijms21103493] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 05/12/2020] [Accepted: 05/13/2020] [Indexed: 11/16/2022] Open
Abstract
Chemistry of Schiff base (SB) ligands began in 1864 due to the discovery made by Hugo Schiff (Schiff, H., Justus Liebigs Ann. der Chemie 1864, 131 (1), 118-119). However, there is still a vivid interest in coordination compounds based on imine ligands. The aim of this paper is to review the most recent concepts on construction of homo- and hetero-oligonuclear Schiff base coordination compounds narrowed down to the less frequently considered complexes of platinum group metals (PGM). The combination of SB and PGM in oligonuclear entities has several advantages over mononuclear or polynuclear species. Such complexes usually exhibit better electroluminescent, magnetic and/or catalytic properties than mononuclear ones due to intermetallic interactions and frequently have better solubility than polymers. Various construction strategies of oligodentate imine ligands for coordination of PGM are surveyed including simple imine ligands, non-innocent 1,2-diimines, chelating imine systems with additional N/O/S atoms, classic N2O2-compartmental Schiff bases and their modifications resulting in acyclic fused ligands, macrocycles such as calixsalens, metallohelical structures, nano-sized molecular wheels and hybrid materials incorporating mesoionic species. Co-crystallization and formation of metallophilic interactions to extend the mononuclear entities up to oligonuclear coordination species are also discussed.
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Affiliation(s)
- Barbara Miroslaw
- Department of General and Coordination Chemistry and Crystallography, Institute of Chemical Sciences, Faculty of Chemistry, Maria Curie-Sklodowska University in Lublin, Pl. Marii Curie-Sklodowskiej 3, 20-031 Lublin, Poland
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13
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Chauhan RS. Reactivity of hemi-labile pyridyl and pyrimidyl derived chalcogen ligands towards group 10 metal phosphine precursors. NEW J CHEM 2020. [DOI: 10.1039/c9nj04993b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Abstract
The reactivity of N-heterocyclic dichalcogenides and their sodium salts towards group 10 metal phosphine precursors has been investigated.
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Affiliation(s)
- Rohit Singh Chauhan
- Department of Chemistry
- K. J. Somaiya College of Science and Commerce
- Mumbai-400077
- India
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14
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Chauhan RS, Singh SK, Tyagi A, Golen JA, Rheingold AL. A serendipitous isolation of cocrystallized platinum–tin complexes: synthesis, structure and theoretical exploration. NEW J CHEM 2020. [DOI: 10.1039/d0nj04639f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
An adduct of co-crystallized platinum–tin fragments has been synthesized and characterized. NBO and EDA analysis have been performed to explore the nature of bonding in fragments, especially the extent of oxophilic character present in tin atoms.
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Affiliation(s)
- Rohit Singh Chauhan
- Department of Chemistry
- K. J. Somaiya College of Science and Commerce
- VidyaVihar-400 077
- India
| | - Saurabh Kumar Singh
- Department of Chemistry
- Indian Institute of Technology Hyderabad
- Kandi-502285, Sangareddy
- India
| | - Adish Tyagi
- Chemistry Division
- Bhabha Atomic Research Centre
- Mumbai-400085
- India
| | - James A. Golen
- Department of Chemistry and Biochemistry
- University of California
- San Diego, La Jolla
- USA
| | - Arnold L. Rheingold
- Department of Chemistry and Biochemistry
- University of California
- San Diego, La Jolla
- USA
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15
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Pretorius R, McDonald A, Regueira Beltrão da Costa L, Müller‐Bunz H, Albrecht M. Palladium(II), Rhodium(I), and Iridium(I) Complexes Containing
O
‐Functionalized 1,2,3‐Triazol‐5‐ylidene Ligands. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900724] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- René Pretorius
- Department of Chemistry and Biochemistry University of Bern Freiestrasse 3 3012 Bern Switzerland
- School of Chemistry and Chemical Biology University College Dublin 4 Dublin Ireland
| | - Ava McDonald
- School of Chemistry and Chemical Biology University College Dublin 4 Dublin Ireland
| | | | - Helge Müller‐Bunz
- School of Chemistry and Chemical Biology University College Dublin 4 Dublin Ireland
| | - Martin Albrecht
- Department of Chemistry and Biochemistry University of Bern Freiestrasse 3 3012 Bern Switzerland
- School of Chemistry and Chemical Biology University College Dublin 4 Dublin Ireland
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16
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Fioco D, Belli Dell'Amico D, Labella L, Marchetti F, Samaritani S. A Sound Sequence to Triphenylphosphino Dibromoplatinum(II) Complexes – Solvothermal Preparation of
trans
‐[PtBr(µ‐Br)(PPh
3
)]
2. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900711] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- David Fioco
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Giuseppe Moruzzi 13 56124 Pisa Italy
| | - Daniela Belli Dell'Amico
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Giuseppe Moruzzi 13 56124 Pisa Italy
| | - Luca Labella
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Giuseppe Moruzzi 13 56124 Pisa Italy
| | - Fabio Marchetti
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Giuseppe Moruzzi 13 56124 Pisa Italy
| | - Simona Samaritani
- Dipartimento di Chimica e Chimica Industriale Università di Pisa Via Giuseppe Moruzzi 13 56124 Pisa Italy
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17
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Perić M, Kyne SH, Gruden M, Rodić M, Jeremić D, Stanković DM, Brčeski I. Synthesis, structural and DFT analysis of a binuclear nickel(II) complex with the 1,4-bis[2-[2-(diphenylphosphino)benzylidene]]phthalazinylhydrazone ligand. MONATSHEFTE FUR CHEMIE 2019. [DOI: 10.1007/s00706-019-02405-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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18
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19
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Parlak AE, Cakmak H, Sandal S, Yılmaz B, Sekerci M, Karagöz Genc Z, Tuzcu M, Karatepe M. Evaluation of antioxidant and antiproliferative activities of 1,2-bis (p-amino-phenoxy) ethane derivative Schiff bases and metal complexes. J Biochem Mol Toxicol 2018; 33:e22247. [PMID: 30431697 DOI: 10.1002/jbt.22247] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2018] [Revised: 09/04/2018] [Accepted: 09/07/2018] [Indexed: 11/06/2022]
Abstract
In this study, the effects of the two Schiff base derivatives and their metal complexes were tested for MDA concentration, which is an indicator of lipid peroxidation, antioxidant vitamin A, vitamin E, and vitamin C levels in cell culture. A comparison was performed among the groups and it was observed that MDA, vitamin A, vitamin E, and vitamin C concentrations were statistically changed. According to the results, all compounds caused a significant oxidative stress without Zn complexes. Moreover, Mn(II), Cu(II), Zn(II), and Ni(II) complexes of Schiff bases derived from a condensation of 1,2-bis (p-aminophenoxy) ethane with naphthaldehydes and 4-methoxy benzaldehyde were examined in terms of antitumor activity against MCF-7 human breast cancer and L1210 murine leukemia cells. Furthermore, the derivatives were tested for antioxidative and prooxidative effects on MCF-7 breast cancer cells. The compounds which were tested revealed that there was an antitumor activity for MCF-7 and L 1210 cancer cells. Also, some of the compounds induced oxidative harmful.
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Affiliation(s)
- Akif Evren Parlak
- Department of Environmental Technology, Firat University, Keban Vocational School of Higher Education, Programme of Environmental Protection and Control, Elazig, Turkey
| | - Haluk Cakmak
- Department of Chemistry, Faculty of Sciences, Firat University, Elazig, Turkey
| | - Suleyman Sandal
- Department of Physiology, Faculty of Medicine, Inonu University, Malatya, Turkey
| | - Bayram Yılmaz
- Department of Physiology, Faculty of Medicine, Yeditepe University, Istanbul, Turkey
| | - Memet Sekerci
- Department of Chemistry, Faculty of Sciences, Firat University, Elazig, Turkey
| | - Zuhal Karagöz Genc
- Department of Metallurgy and Materials, Faculty of Engineering, Adiyaman University, Adıyaman, Turkey
| | - Mehmet Tuzcu
- Department of Biology, Faculty of Sciences, Firat University, Elazig, Turkey
| | - Mustafa Karatepe
- Department of Chemistry, Faculty of Sciences, Firat University, Elazig, Turkey
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20
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Al-Jibori SA, Hameed WJ, Al-Janabi AS, Basak-Modi S, Wagner C, Hogarth G. A comparative study of the coordination of saccharinate, thiosaccharinate and benzisothiozolinate ligands to cyclometalated [Pd(Me2NCH2C6H4-κN,C)(μ-Cl)]2: Molecular structures of [Pd(Me2NCH2C6H4-κN,C)(µ-X)]2 (X = sac, bit and tsac) and [Pd(Me2NCH2C6H4-κN,C)Cl(ampyH-κN)] (ampyH = 2-amino-3-methylpyridine). Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.04.050] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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21
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Mishra V, Thirupathi N. Critical Role of Anions in Platinum(II) Precursors upon the Structural Motifs of Six-Membered Cycloplatinated N, N', N″-Triarylguanidines. ACS OMEGA 2018; 3:6075-6090. [PMID: 31458795 PMCID: PMC6644913 DOI: 10.1021/acsomega.8b00782] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/21/2018] [Accepted: 05/24/2018] [Indexed: 05/20/2023]
Abstract
The reactions of cis-[Pt(OAc)2(DMSO)2] with 2 equiv of sym N,N',N″-triarylguanidines, [ArN=C(NHAr)2], in toluene under reflux condition for 8 h afforded six-membered cycloplatinated guanidines, [Pt{κ2(C,N)}(OAc){κ1 N(ArN=C(NHAr)2)}] [sym = symmetrical; Ar = 2-MeC6H4 (1) and 2,4-Me2C6H3 (2)], in 82 and 84% yields, respectively. The salt metathesis reaction of 1 with 1 equiv of AgTFA in CH2Cl2 at room temperature (RT) afforded [Pt{κ2(C,N)}(TFA){κ1 N(ArN=C(NHAr)2)}] (3) in 94% yield. The reaction of cis-[Pt(TFA)2(DMSO)2] with 1 equiv of [ArN=C(NHAr)2] in toluene under reflux condition for 8 h afforded six-membered cycloplatinated guanidines, [Pt{κ2(C,N)}(TFA)(DMSO)] [Ar = 2-MeC6H4 (4), 4-MeC6H4 (5), 2,4-Me2C6H3 (6), and 2-(MeO)C6H4 (7)], in ≥73% yields. The reaction of trans-[PtCl2(PhCN)2] with 2 equiv of [ArN=C(NHAr)2] in toluene under reflux condition for 48 h afforded trans-[PtCl2{ArN=C(NHAr)2}2] [Ar = 2-MeC6H4 (8) and 2,4-Me2C6H3 (9)] in 90 and 45% yields, respectively. Complexes 8 and 9 were separately refluxed in MeOH for 8 h to afford six-membered cycloplatinated guanidines, [Pt{κ2(C,N)}(μ-Cl)]2 (10 and 11), in 93 and 96% yields, respectively, with concomitant formation of the respective guanidinium salts, [(ArNH)3C]Cl, as the byproduct. Platinacycle 10 was treated with 2 equiv of AgTFA in CH2Cl2 at RT to afford six-membered cycloplatinated guanidine, [Pt{κ2(C,N)}(μ-TFA)]2 (12), in 94% yield. The new compounds were characterized by analytical techniques and multinuclear NMR (1H, 13C, and 195Pt) spectroscopy, and further, molecular structures of 10 compounds were determined by single-crystal X-ray diffraction. The structural motif in 1·1/2CH2Cl2 and 3 is novel in that it contains a planar six-membered [Pt{κ2(C,N)}] unit and a nonplanar eight-membered [Pt{κ2(N,O)}] ring, wherein OAc and the guanidine ligands are linked through a N-H···O hydrogen bond. The six-membered cycloplatinated structural motifs present in 10/11·C7H8 and 12·CH2Cl2 are also unprecedented in the literature. The number and nature of solution species of new complexes were unambiguously investigated by detailed NMR studies. The critical role of anions in Pt(II) precursors upon the course of cycloplatination and thus the motifs in the products were addressed. Plausible mechanisms of cycloplatination reactions are discussed.
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22
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Shaik JB, Ramkumar V, Sankararaman S. Synthesis of a new class of cationic Pd(II) complexes with 1,2,3-triazol-5-ylidene ligand and their catalytic application in the conversion of internal alkynes to 1,2-diketones. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2018.02.011] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Sharma S, Sarkar BR. Efficient Mizoroki–Heck coupling reactions using phosphine-modified Pd(II)–picolinate complex. SYNTHETIC COMMUN 2018. [DOI: 10.1080/00397911.2018.1428347] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Affiliation(s)
- Sonam Sharma
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Rajasthan, India
| | - Bibhas R. Sarkar
- Department of Chemistry, Birla Institute of Technology and Science, Pilani, Rajasthan, India
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24
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Dilek E, Caglar S, Erdogan K, Caglar B, Sahin O. Synthesis and characterization of four novel palladium(II) and platinum(II) complexes with 1-(2-aminoethyl)pyrrolidine, diclofenac and mefenamic acid: In vitro effect of these complexes on human serum paraoxanase1 activity. J Biochem Mol Toxicol 2018; 32:e22043. [PMID: 29512227 DOI: 10.1002/jbt.22043] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2017] [Revised: 01/18/2018] [Accepted: 01/20/2018] [Indexed: 01/10/2023]
Abstract
In this study, the effects of four novel mononuclear palladium(II) and platinum(II) complexes on the activity of human serum paraoxanase1 were examined. First, four novel mononuclear palladium(II) and platinum(II) complexes were synthesized with a nitrogen donor ligand 1-(2-aminoethyl)pyrrolidine and nonsteroidal anti-inflammatory drugs diclofenac, mefenamic acid. These complexes were characterized by spectroscopic, thermal, and elemental analyses. The crystal structures of complex [Pd(2-amepyr)2 ](dicl)2 1 and [Pd(2-amepyr)2 ](mef)2 3 were determined by X-ray crystallography. Then, paraoxonase1 enzyme was purified from human serum. The effects of these complexes on enzyme were evaluated in vitro. The complexes consist of the cationic unit and the counterions. The diclofenac and mefenamic acid acted as a counterion in the complexes. It was observed that all the complexes were stable up to high temperatures. These complexes, even at low doses, inhibited the activity of the enzyme with different inhibition mechanisms.
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Affiliation(s)
- Esra Dilek
- Faculty of Pharmacy, Department of Biochemistry, Erzincan University, Erzincan, Turkey
| | - Sema Caglar
- Faculty of Sciences and Arts, Department of Chemistry, Erzincan University, Erzincan, Turkey
| | - Kübra Erdogan
- Institute of Science and Technology, Department of Chemistry, Erzincan University, Erzincan, Turkey
| | - Bülent Caglar
- Faculty of Sciences and Arts, Department of Chemistry, Erzincan University, Erzincan, Turkey
| | - Onur Sahin
- Scientific and Technological Research Application and Research Center, Sinop University, Sinop, Turkey
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25
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Steric effects enforce double stereoselective N-coordination in twelve-membered binuclear palladium(II)-complexes containing chiral bridging aminoalkyl-phosphine ligands. J Organomet Chem 2018. [DOI: 10.1016/j.jorganchem.2017.11.021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Kessler JA, Iluc VM. NI(ii) phosphine and phosphide complexes supported by a PNP-pyrrole pincer ligand. Dalton Trans 2017; 46:12125-12131. [PMID: 28869266 DOI: 10.1039/c7dt02784b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction between [(PNpyrP)NiCl] (1, PNpyrP = 2,5-bis((di-iso-propylphosphino)-methyl)-1H-pyrrolide) and TlPF6 in the presence of a monodentate phosphine ligand led to cationic nickel phosphine and phosphite complexes, [(PNpyrP)Ni(PHPh2)][PF6] (2), [(PNpyrP)Ni(PMe3)][PF6] (3), and [(PNpyrP)Ni{P(OMe)3}][PF6] (4). Compound 2 can be deprotonated resulting in the generation of a terminal phosphido complex, [(PNpyrP)Ni(PPh2)] (5). When 3 is subjected to a base, a methyl proton of PMe3 is abstracted to afford [(PNpyrP)Ni(CH2PMe2)] (6), containing a methylene bridge between Ni and the external phosphine. Compounds 2-6 were characterized by single crystal X-ray diffraction in addition to multi-nuclear NMR spectroscopy and elemental analysis.
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Affiliation(s)
- Julie A Kessler
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
| | - Vlad M Iluc
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, IN 46556, USA.
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27
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Rozic KNW, Azizpoor Fard M, Khalili Najafabadi B, Corrigan JF. Metal Trimethylsilylthiolates for the Synthesis of Trinuclear MnPd 2
Complexes. Z Anorg Allg Chem 2017. [DOI: 10.1002/zaac.201700179] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Kyle N. W. Rozic
- Department of Chemistry; The University of Western Ontario; N6A 5B7 London Ontario Canada
| | - Mahmood Azizpoor Fard
- Department of Chemistry; The University of Western Ontario; N6A 5B7 London Ontario Canada
| | | | - John F. Corrigan
- Department of Chemistry; The University of Western Ontario; N6A 5B7 London Ontario Canada
- Centre for Advanced Materials and Biomaterials Research; The University of Western Ontario; N6A 3K7 London Ontario Canada
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28
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Petrov AI, Dergachev ID, Golovnev NN, Kondrasenko AA, Erenburg SB, Trubina SV. Reactions of dl-homocystine and 3,3′-dithiodipropionic acid with Pd(II) in aqueous hydrochloric solutions. Part I: coordination model. J COORD CHEM 2017. [DOI: 10.1080/00958972.2017.1353083] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Alexander I. Petrov
- Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
- Institute of Non-Ferrous Metals and Materials Science, Siberian Federal University, Krasnoyarsk, Russian Federation
| | | | - Nicolay N. Golovnev
- Institute of Non-Ferrous Metals and Materials Science, Siberian Federal University, Krasnoyarsk, Russian Federation
| | - Alexander A. Kondrasenko
- Institute of Chemistry and Chemical Technology SB RAS, Federal Research Center “Krasnoyarsk Science Center SB RAS”, Krasnoyarsk, Russian Federation
| | - Simon B. Erenburg
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
- G.I. Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
| | - Svetlana V. Trubina
- Nikolaev Institute of Inorganic Chemistry, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russian Federation
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29
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Fortney-Zirker RG, Henderson W, Tiekink ER. Mixed-chalcogenide diplatinum complexes; an investigation of ligand exchange processes using ESI mass spectrometry. Inorganica Chim Acta 2017. [DOI: 10.1016/j.ica.2017.03.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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30
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Karjalainen MM, Wiegand T, Rautiainen JM, Wagner A, Görls H, Weigand W, Oilunkaniemi R, Laitinen RS. Competitive Te-Te and C-Te bond cleavage in the oxidative addition of diaryl and dialkyl ditellurides to Pt(0) centers. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.03.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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31
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Krishnaswamy S, Chand DK. cis-Protected palladium(ii) based binuclear complexes as tectons in crystal engineering and the imperative role of the cis-protecting agent. CrystEngComm 2017. [DOI: 10.1039/c7ce00654c] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
The shape and molecular packing of cis-protected Pd(ii) based binuclear complexes depends upon the ligand and cis-protecting agents.
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Affiliation(s)
| | - Dillip Kumar Chand
- Department of Chemistry
- Indian Institute of Technology Madras
- Chennai 600036
- India
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32
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Islas RE, Cárdenas J, Gaviño R, García-Ríos E, Lomas-Romero L, Morales-Serna JA. Phosphinito palladium(ii) complexes as catalysts for the synthesis of 1,3-enynes, aromatic alkynes and ynones. RSC Adv 2017. [DOI: 10.1039/c6ra28855c] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
An air-stable phosphinito palladium(ii) complex has been found to be an efficient catalyst in the formation of C–C bonds.
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Affiliation(s)
- R. E. Islas
- Instituto de Química
- Universidad Nacional Autónoma de México
- Ciudad de México
- Mexico
| | - J. Cárdenas
- Instituto de Química
- Universidad Nacional Autónoma de México
- Ciudad de México
- Mexico
| | - R. Gaviño
- Instituto de Química
- Universidad Nacional Autónoma de México
- Ciudad de México
- Mexico
| | - E. García-Ríos
- Instituto de Química
- Universidad Nacional Autónoma de México
- Ciudad de México
- Mexico
| | - L. Lomas-Romero
- Departamento de Química
- Universidad Autónoma Metropolitana-Iztapalapa
- Ciudad de México
- Mexico
| | - J. A. Morales-Serna
- Departamento de Química
- Universidad Autónoma Metropolitana-Iztapalapa
- Ciudad de México
- Mexico
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33
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CT-DNA/BSA protein binding and antioxidant studies of new binuclear Pd(II) complexes and their structural characterisation. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.05.018] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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34
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Martínez J, Cabaleiro-Lago EM, Ortigueira JM, Pereira MT, Frieiro P, Lucio F, Vila JM. Synthesis and reactivity of thiosemicarbazone palladacycles. Crystal structure analysis and theoretical calculations. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.03.044] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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35
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Rehe D, Kornienko AY, Emge TJ, Brennan JG. Thorium Compounds with Bonds to Sulfur or Selenium: Synthesis, Structure, and Thermolysis. Inorg Chem 2016; 55:6961-7. [DOI: 10.1021/acs.inorgchem.6b00645] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David Rehe
- Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, United States
| | - Anna Y. Kornienko
- Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, United States
| | - Thomas J. Emge
- Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, United States
| | - John G. Brennan
- Department of Chemistry and Chemical Biology, Rutgers, the State University of New Jersey, 610 Taylor Road, Piscataway, New Jersey 08854-8087, United States
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36
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Prasad PR, Singh HB, Butcher RJ. Synthesis, structure and reactivity of β-chalcocyclohexenals: Dichalcogenides and chalcogenides. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.04.019] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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37
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Yoshinari N, Konno T. Metallosupramolecular Structures Derived from a Series of Diphosphine-bridged Digold(I) Metalloligands with Terminald-Penicillamine. CHEM REC 2016; 16:1647-63. [DOI: 10.1002/tcr.201600026] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Indexed: 01/08/2023]
Affiliation(s)
- Nobuto Yoshinari
- Department of Chemistry; Graduate School of Science Osaka University; Toyonaka Osaka 560-0043 Japan
| | - Takumi Konno
- Department of Chemistry; Graduate School of Science Osaka University; Toyonaka Osaka 560-0043 Japan
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38
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Andrade APS, Arantes LM, Kadooca JY, Carvalho RL, de Fátima Â, Sabino AA. Palladium Complexes with Tetradentate Schiff Bases or their Corresponding Amines: Synthesis and Application in Heck Reactions. ChemistrySelect 2016. [DOI: 10.1002/slct.201600244] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Aretha P. S. Andrade
- Grupo de Estudos em Química Orgânica e Biológica (GEQOB); Departamento de Química; Universidade Federal de Minas Gerais; Av. Pres. Antônio Carlos, 6627, Pampulha 31270-901 Belo Horizonte, MG Brazil
| | - Lucas M. Arantes
- Grupo de Estudos em Química Orgânica e Biológica (GEQOB); Departamento de Química; Universidade Federal de Minas Gerais; Av. Pres. Antônio Carlos, 6627, Pampulha 31270-901 Belo Horizonte, MG Brazil
| | - Juliana Y. Kadooca
- Grupo de Estudos em Química Orgânica e Biológica (GEQOB); Departamento de Química; Universidade Federal de Minas Gerais; Av. Pres. Antônio Carlos, 6627, Pampulha 31270-901 Belo Horizonte, MG Brazil
| | - Renato L. Carvalho
- Grupo de Estudos em Química Orgânica e Biológica (GEQOB); Departamento de Química; Universidade Federal de Minas Gerais; Av. Pres. Antônio Carlos, 6627, Pampulha 31270-901 Belo Horizonte, MG Brazil
| | - Ângelo de Fátima
- Grupo de Estudos em Química Orgânica e Biológica (GEQOB); Departamento de Química; Universidade Federal de Minas Gerais; Av. Pres. Antônio Carlos, 6627, Pampulha 31270-901 Belo Horizonte, MG Brazil
| | - Adão A. Sabino
- Grupo de Estudos em Química Orgânica e Biológica (GEQOB); Departamento de Química; Universidade Federal de Minas Gerais; Av. Pres. Antônio Carlos, 6627, Pampulha 31270-901 Belo Horizonte, MG Brazil
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39
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Mandal P, Lin CH, Brandão P, Mal D, Felix V, Pratihar JL. Synthesis, characterization, structure and catalytic activity of (NNN) tridentate azo-imine nickel(II), palladium(II) and platinum(II) complexes. Polyhedron 2016. [DOI: 10.1016/j.poly.2015.12.050] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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40
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Wang H, Yang J. Synthesis and characterizations of arsine- and stibine-ligated Schiff base palladacycles and their applications in Suzuki-Miyaura cross-coupling reactions. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3426] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Haozhen Wang
- Department of Chemistry; Huaibei Normal University; Huaibei Anhui 235000 People's Republic of China
| | - Jin Yang
- Department of Chemistry; Huaibei Normal University; Huaibei Anhui 235000 People's Republic of China
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41
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Synthesis and crystal structures of a series of (μ-thiophenolato)(μ-pyrazolato-N,N′) double bridged dipalladium(II) complexes and their application in Mizoroki–Heck reaction as highly efficient catalysts. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2015.10.035] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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42
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Mendola D, Saleh N, Hellou N, Vanthuyne N, Roussel C, Toupet L, Castiglione F, Melone F, Caronna T, Fontana F, Martı́-Rujas J, Parisini E, Malpezzi L, Mele A, Crassous J. Synthesis and Structural Properties of Aza[n]helicene Platinum Complexes: Control of Cis and Trans Stereochemistry. Inorg Chem 2015; 55:2009-17. [DOI: 10.1021/acs.inorgchem.5b02276] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniele Mendola
- Sciences
Chimiques de Rennes, UMR 6226, and Institut de Physique de Rennes,
UMR 6251, CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
- Dipartimento
di Chimica Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy
| | - Nidal Saleh
- Sciences
Chimiques de Rennes, UMR 6226, and Institut de Physique de Rennes,
UMR 6251, CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Nora Hellou
- Sciences
Chimiques de Rennes, UMR 6226, and Institut de Physique de Rennes,
UMR 6251, CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Nicolas Vanthuyne
- Aix-Marseille Université, Centrale Marseille, CNRS, iSm2, UMR 7313, 13397 Marseille, France
| | - Christian Roussel
- Aix-Marseille Université, Centrale Marseille, CNRS, iSm2, UMR 7313, 13397 Marseille, France
| | - Loïc Toupet
- Sciences
Chimiques de Rennes, UMR 6226, and Institut de Physique de Rennes,
UMR 6251, CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
| | - Franca Castiglione
- Dipartimento
di Chimica Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy
| | - Federica Melone
- INSTM R.U. and Dipartimento
di Ingegneria e Scienze Applicate, Università di Bergamo, Viale Marconi
5, 24044 Dalmine,
Bergamo, Italy
| | - Tullio Caronna
- INSTM R.U. and Dipartimento
di Ingegneria e Scienze Applicate, Università di Bergamo, Viale Marconi
5, 24044 Dalmine,
Bergamo, Italy
| | - Francesca Fontana
- INSTM R.U. and Dipartimento
di Ingegneria e Scienze Applicate, Università di Bergamo, Viale Marconi
5, 24044 Dalmine,
Bergamo, Italy
| | - Javier Martı́-Rujas
- Center for Nano Science
and Technology at Polimi, Istituto Italiano di Tecnologia, Via Pascoli
70/3, 20133 Milano, Italy
| | - Emilio Parisini
- Center for Nano Science
and Technology at Polimi, Istituto Italiano di Tecnologia, Via Pascoli
70/3, 20133 Milano, Italy
| | - Luciana Malpezzi
- Dipartimento
di Chimica Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy
| | - Andrea Mele
- Dipartimento
di Chimica Materiali e Ingegneria Chimica “Giulio Natta”, Politecnico di Milano, Piazza L. da Vinci 32, 20133 Milano, Italy
| | - Jeanne Crassous
- Sciences
Chimiques de Rennes, UMR 6226, and Institut de Physique de Rennes,
UMR 6251, CNRS, Université de Rennes 1, Campus de Beaulieu, 35042 Rennes Cedex, France
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43
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Vivekananda KV, Dey S, Maity DK, Bhuvanesh N, Jain VK. Supramolecular Macrocyclic Pd(II) and Pt(II) Squares and Rectangles with Aryldithiolate Ligands and their Excellent Catalytic Activity in Suzuki C-C Coupling Reaction. Inorg Chem 2015; 54:10153-62. [PMID: 26444245 DOI: 10.1021/acs.inorgchem.5b00806] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Addition of 1,4-benezenedithiol and 4,4'-biphenyldithiol to M(OTf)2 (M = cis-[Pt(PEt3)2](2+) or cis-[Pd(dppe)](2+)) (dppe = 1,2-bis(diphenylphosphino)ethane) gave self-assembled tetranuclear complexes [M2{S(C6H4)nS}]2(OTf)4 (n = 1, 2). The same reaction with 1,4-benezenedimethanethiol yielded octanuclear supramolecular coordination complexes (SCC) [M2{SCH2C6H4CH2S}]4(OTf)8. These complexes were characterized by NMR, mass, and UV-vis spectroscopies, cyclic voltammetry, as well as density functional theory studies and represent the first examples of SCCs constructed by thiolate groups and square-planar metal ions. The rectangular shape of tetranuclear complexes and square shape of octanuclear complex are confirmed by single-crystal structures and computational studies. The palladium complexes showed excellent catalytic activity in Suzuki C-C cross-coupling reactions with high turnover numbers (2 × 10(7)), even with low catalyst loading.
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Affiliation(s)
- K V Vivekananda
- Chemistry Division, Bhabha Atomic Research Centre , Mumbai 400 085, India
| | - S Dey
- Chemistry Division, Bhabha Atomic Research Centre , Mumbai 400 085, India
| | - D K Maity
- Homi Bhabha National Institute, Training School Complex , Mumbai 400094, India
| | - N Bhuvanesh
- Department of Chemistry, Texas A&M University , P.O. Box 30012, College Station, Texas 77842-3012, United States
| | - V K Jain
- Chemistry Division, Bhabha Atomic Research Centre , Mumbai 400 085, India
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44
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A nanoparticulate polyacetylene-supported Pd(II) catalyst combining the advantages of homogeneous and heterogeneous catalysts. CHINESE JOURNAL OF CATALYSIS 2015. [DOI: 10.1016/s1872-2067(15)60930-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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45
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Azizpoor Fard M, Willans MJ, Khalili Najafabadi B, Levchenko TI, Corrigan JF. Polydentate chalcogen reagents for the facile preparation of Pd2 and Pd4 complexes. Dalton Trans 2015; 44:8267-77. [PMID: 25851464 DOI: 10.1039/c5dt00197h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The silylated organochalcogen reagents 1,2-(Me3SiSCH2)2C6H4, and 1,2-(Me3SiSeCH2)2C6H4, were prepared from the corresponding organobromides and lithium trimethylsilanechalcogenolate Li[ESiMe3] (E = S, Se). They have been characterized by multinuclear NMR spectroscopy ((1)H, (13)C, (77)Se) and electrospray ionization mass spectrometry. and react under mild conditions with (1,3-bis(diphenylphosphino)propane)palladium(ii) chloride, [PdCl2(dppp)], to provide the dinuclear organochalcogenolate-bridged complexes [(dppp)2Pd2-μ-κ(2)S-{1,2-(SCH2)2C6H4}]X2, []X2 and [(dppp)2Pd2-μ-κ(2)Se-{1,2-(SeCH2)2C6H4}]X2, []X2 (X = Cl, Br) in good yield, respectively. Furthermore, the tetranuclear palladium complex [(dppp)4Pd4-μ-κ(4)S-{1,2,4,5-(SCH2)4C6H2}]X4, []X4 (X = Cl, Br) can be synthesized from the reaction of the tetrathiotetrasilane 1,2,4,5-(Me3SiSCH2)4C6H2, and [PdCl2(dppp)]. The structures of []X2, []X2 and []X4 were determined by single crystal X-ray diffraction methods. A variety of NMR experiments including two-dimensional homonuclear and heteronuclear correlated spectra were used to probe the solution behaviour of the dinuclear complexes in more detail. These complexes were further characterized by electrospray ionization (ESI) mass spectrometry, and for []X2 and []X2, UV-Vis absorption spectroscopy.
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Affiliation(s)
- Mahmood Azizpoor Fard
- Department of Chemistry, The University of Western Ontario, London, ON N6A 5B7, Canada.
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46
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Serebryanskaya TV, Novikov AS, Gushchin PV, Zolotarev AA, Gurzhiy VV, Kukushkin VY. Coupling of platinated triguanides with platinum-activated nitriles as a novel strategy for generation of dimetallic systems. Dalton Trans 2015; 44:6003-11. [PMID: 25720690 DOI: 10.1039/c4dt03870c] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
One of two Pt(IV)-activated propanenitriles in trans-[PtCl4(EtCN)2] is involved in platinum(IV)-mediated nitrile-imine coupling with the platinum(II)-based metallacycles [PtCl2{NH=C(NR2)N(Ph)C(=NH)N(Ph)C(NR2)=NH}] [R2 = Me2 (1a), C5H10 (1b)] yielding diplatinum products, whose structures depend on molar ratios between the reactants. At a 1 : 1 ratio, the mixed-valence platinum(II)/platinum(IV) species [PtCl4{NH=C(NR2)N(Ph)C{=[(N(Et)C=NH)PtCl2(EtCN)]}N(Ph)C(NR2)=NH}] [R2 = Me2 (2a), (CH2)5 (2b)] were generated, whereas at a 1 : 2 ratio the dinuclear platinum(II)/platinum(II) complexes [PtCl2{NH=C(NR2)N(Ph)C{=[(N(Et)C=NH)PtCl2(EtCN)]}N(Ph)C(NR2)=NH}] [R2 = Me2 (3a), (CH2)5 (3b)] were obtained. In contrast to the nitrile-imine coupling observed for the platinum(IV) dinitrile complex, the reaction between the platinum(II) congener trans-[PtCl2(EtCN)2] and any one of 1a,b gives exclusively the substituted dimetallic platinum(II)/platinum(II) products [PtCl2{NH=C(NR2)N(Ph)C{=[(NH)PtCl2(EtCN)]}N(Ph)C(NR2)=NH}] [R2 = Me2 (6a), (CH2)5 (6b)] featuring platinum-containing guanidine 1 as one of the ligands. Complexes 2a,b, 3a,b, and 6a,b were characterized by elemental analyses (C, H, N), HRESI-MS, IR, (1)H NMR spectroscopy, and DTA/TG. The molecular and crystal structure of 2a·2CDCl3 was additionally studied by single-crystal X-ray diffraction. Complexes 2a,b undergo further redox transformation in solutions, and single crystals of [PtCl2{NH=C(NMe2)N(Ph)C{=[(N(Et)C=NH)PtCl2(MeCN)]}N(Ph)C(NMe2)=NH}]·2CH2Cl2 (3'a·2CH2Cl2) were obtained from 2a in a CH2Cl2-MeCN-C2H4Cl2 mixture and studied by X-ray crystallography. The driving forces for the generation of diplatinum products 2 and 3 were elucidated based on a quantum-chemical study.
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Affiliation(s)
- Tatiyana V Serebryanskaya
- Institute of Chemistry, Saint Petersburg State University, Universitetsky Pr. 26, 198504 Stary Petergof, Russian Federation.
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47
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Nguyen VH, Khoo RSH, Yip JHK. Ir(2-phenylpyridine)2(benzene-1,2-dithiolate) anion as a diastereoselective metalloligand and nucleophile: stereoelectronic effect, spectroscopy, and computational study of the methylated and aurated complexes and their oxygenation products. Inorg Chem 2015; 54:2264-77. [PMID: 25692396 DOI: 10.1021/ic502875y] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The anionic complex [Ir(2-phenylpyridine)2(benzene-1,2-dithiolate)](-) ([IrSS](-)) is a nucleophile and metalloligand that reacts with methyl iodide and AuPR3(+) (R = Ph or Et) to form S-methylated complexes (thiother-thiolate and dithiother complexes) and S-aurated complexes, respectively. The reactions are completely diastereselective, producing only the enantiomers ΛS and ΔR or ΛSS and ΔRR. The diastereoselectivity is stereoelectronically controlled by the orientation of the highest occupied molecular orbital (HOMO) of [IrSS](-) arising from filled dπ-pπ antibonding interactions, and the chirality of the iridium ion. Methylation or auration removes the high-energy lone pair of the thiolate S atom, leading to low-lying HOMOs composed mainly of the Ir d-orbital and the 2-phenylpyridine π (ppyπ) orbital. The methylated and aurated complexes can be oxidized by H2O2 or peracid to give sulfinate-thiother, disulfoxide, and sulfinate-sulfoxide complexes, and the oxygenation further stabilizes the HOMO. All the complexes are luminescent, and their electronic spectra are interpreted with the aid of time-dependent density functional theory calculations. The thiother-thiolate complex exhibits ligand(S)-to-ligand(π* of ppy)-charge-transfer/metal-to-ligand-charge-transfer absorption (LLCT/MLCT) and a relatively low-energy (3)LLCT/MLCT emission, while the other complexes display (3)ππ*/MLCT emissions.
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Affiliation(s)
- Van Ha Nguyen
- Department of Chemistry, National University of Singapore , 3 Science Drive 3, Singapore, 117543
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48
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Electronic underpinnings of phosphido-bridged Pt3 clusters and the questioned stereochemistry of a uniquely reported 46e− species. Inorganica Chim Acta 2015. [DOI: 10.1016/j.ica.2014.09.040] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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49
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Jouffroy M, Armspach D, Matt D. Cyclodextrin and phosphorus(iii): a versatile combination for coordination chemistry and catalysis. Dalton Trans 2015; 44:12942-69. [DOI: 10.1039/c5dt00667h] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The relevance of cyclodextrins equipped with P(iii) atoms in coordination chemistry and homogeneous catalysis is discussed.
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Affiliation(s)
- Matthieu Jouffroy
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse
- Institut de Chimie UMR 7177 CNRS
- Université de Strasbourg
- 67070 Strasbourg cedex
- France
| | - Dominique Armspach
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse
- Institut de Chimie UMR 7177 CNRS
- Université de Strasbourg
- 67070 Strasbourg cedex
- France
| | - Dominique Matt
- Laboratoire de Chimie Inorganique Moléculaire et Catalyse
- Institut de Chimie UMR 7177 CNRS
- Université de Strasbourg
- 67070 Strasbourg cedex
- France
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50
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Lingen V, Lüning A, Strauß C, Pantenburg I, Deacon GB, Meyer G, Klein A. Platinum complexes with the SC 6 F 4 H-4 ligand – Synthesis, structures and spectroscopy. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2014.07.058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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