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Tao YL, Zhu ZH, Zhao Z, Zhu QT, Wang O, Liu X. A NOVEL MERCURY COORDINATION COMPOUND WITH YELLOW PHOTOLUMINESCENCE. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621110184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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2
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Mills AW, Valentine AJS, Hoang K, Roy S, Castellano FN, Chen LX, Li X. General Design Rules for Bimetallic Platinum(II) Complexes. J Phys Chem A 2021; 125:9438-9449. [PMID: 34699219 DOI: 10.1021/acs.jpca.1c05044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of platinum(II) bimetallic complexes were studied to investigate the effects of ligands on both the geometric and electronic structure. Modulating the Pt-Pt distance through the bridging ligand architecture was found to dictate the nature of the lowest energy electronic transitions, localized in one-half of the molecule or delocalized across the entire molecule. By reducing the separation between the platinum atoms, the lowest energy electronic transitions will be dominated by the metal-metal-to-ligand charge transfer transition. Conversely, by increasing the distance between the platinum atoms, the lowest electronic transition will be largely localized metal-to-ligand charge transfer or ligand centered in nature. Additionally, the cyclometalating ligands were observed to have a noticeable stabilizing effect on the triplet excited states as the conjugation increased, arising from geometric reorientation and increased electron delocalization of the ligands. Such stabilization of the triplet state energy has been shown to alter the excited state potential energy landscape as well as the excited state trajectory.
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Affiliation(s)
- Alexis W Mills
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Andrew J S Valentine
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Kevin Hoang
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
| | - Subhangi Roy
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Felix N Castellano
- Department of Chemistry, North Carolina State University, Raleigh, North Carolina 27695-8204, United States
| | - Lin X Chen
- Chemical Sciences and Engineering Division, Argonne National Laboratory, Lemont, Illinois 60439, United States.,Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Xiaosong Li
- Department of Chemistry, University of Washington, Seattle, Washington 98195, United States
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3
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Kuyuldar S, Burda C, Connick WB. Halide exchange studies of novel Pd(ii) NNN-pincer complexes. RSC Adv 2019; 9:25703-25711. [PMID: 35530079 PMCID: PMC9070094 DOI: 10.1039/c9ra05423e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2019] [Accepted: 08/05/2019] [Indexed: 11/21/2022] Open
Abstract
Palladium(ii) complexes with an NNN type pincer ligand (pip2NNN = 2,6-bis(piperdyl-methyl)pyridine) are synthesized and characterized. Electronic and 1H NMR spectra point to decreasing filled/filled repulsions between the dπ(Pd) orbitals and the halide lone pair orbitals along the Cl < Br < I series. For all complexes, the most downfield α-piperidyl resonance of the pip2NNN ligand is sensitive to changes in the coordinated halide while the meta-pyridyl and benzylic resonances are sensitive to changes in the counter anion. This sensitivity is utilized to study halide association and exchange at the fourth coordination site. Conductivity and 1H NMR spectroscopy confirm the interaction between the exogenous anion (Cl-, Br-, BF4 -) and Pd(pip2NNN)X+ (X = Cl, Br).
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Affiliation(s)
- Seher Kuyuldar
- Department of Chemistry, University of Cincinnati 2600 Clifton Ave. Cincinnati OH 44221 USA
- Department of Chemistry, Case Western Reserve University 10900 Euclid Ave. Cleveland OH 44106 USA
| | - Clemens Burda
- Department of Chemistry, Case Western Reserve University 10900 Euclid Ave. Cleveland OH 44106 USA
| | - William B Connick
- Department of Chemistry, University of Cincinnati 2600 Clifton Ave. Cincinnati OH 44221 USA
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4
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Wang N, Hu M, Mellerup SK, Wang X, Sauriol F, Peng T, Wang S. Triaryl-Boron Functionalized Dinuclear Platinum Complexes Linked by Photoisomerizable Bpe Ligand: Luminescence and Isomerism. Inorg Chem 2017; 56:12783-12794. [DOI: 10.1021/acs.inorgchem.7b01535] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Nan Wang
- Key Laboratory of
Cluster Science, Ministry of Education of China, Beijing Key Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Mingfeng Hu
- Key Laboratory of
Cluster Science, Ministry of Education of China, Beijing Key Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Soren K. Mellerup
- Department
of Chemistry, Queen’s University, Kingston, Ontario K7L 3N6, Canada
| | - Xiang Wang
- Department
of Chemistry, Queen’s University, Kingston, Ontario K7L 3N6, Canada
| | - Françoise Sauriol
- Department
of Chemistry, Queen’s University, Kingston, Ontario K7L 3N6, Canada
| | - Tai Peng
- Key Laboratory of
Cluster Science, Ministry of Education of China, Beijing Key Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
| | - Suning Wang
- Key Laboratory of
Cluster Science, Ministry of Education of China, Beijing Key Laboratory
of Photoelectronic/Electrophotonic Conversion Materials, School of
Chemistry, Beijing Institute of Technology, Beijing 100081, People’s Republic of China
- Department
of Chemistry, Queen’s University, Kingston, Ontario K7L 3N6, Canada
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5
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Reactivity of platinum(II) triphenylphosphino complexes with nitrogen donor divergent ligands. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.09.016] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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6
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Stace JJ, Ball P, Shingade V, Chatterjee S, Shiveley A, Fleeman WL, Staniszewski AJ, Krause JA, Connick WB. Kinetics of the methylation of a platinum(II) diimine dithiolate complex. Inorganica Chim Acta 2016. [DOI: 10.1016/j.ica.2016.03.006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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7
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Zhao D, Krause JA, Connick WB. Platinum(II) Monomer and Dimer Complexes with a Bis(oxazolinyl)phenyl Pincer Ligand. Inorg Chem 2015; 54:8339-47. [DOI: 10.1021/acs.inorgchem.5b01022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Daoli Zhao
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Jeanette A. Krause
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - William B. Connick
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
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9
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Attachment of Luminescent Neutral “Pt(pq)(C≡CtBu)” Units to Di and Tri N-Donor Connecting Ligands: Solution Behavior and Photophysical Properties. INORGANICS 2014. [DOI: 10.3390/inorganics2040565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023] Open
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10
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Mougang-Soumé B, Belanger-Gariépy F, Zargarian D. Synthesis, Characterization, and Oxidation of New POCNimine-Type Pincer Complexes of Nickel. Organometallics 2014. [DOI: 10.1021/om500529e] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
| | | | - Davit Zargarian
- Department of Chemistry, Université de Montréal, Montreal, Quebec, Canada
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11
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Borré E, Dahm G, Aliprandi A, Mauro M, Dagorne S, Bellemin-Laponnaz S. Tridentate Complexes of Group 10 Bearing Bis-Aryloxide N-Heterocyclic Carbene Ligands: Synthesis, Structural, Spectroscopic, and Computational Characterization. Organometallics 2014. [DOI: 10.1021/om5003446] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Etienne Borré
- Institut
de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034 Strasbourg Cedex
2, France
| | - Georges Dahm
- Institut
de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034 Strasbourg Cedex
2, France
| | - Alessandro Aliprandi
- Laboratoire
de Chimie et des Biomatériaux Supramoléculaires, Institut
de Science et d’Ingénierie Supramoléculaires
(ISIS), Université de Strasbourg UMR 7006, 8 allée
Gaspard Monge, F-67083 Strasbourg, France
| | - Matteo Mauro
- Laboratoire
de Chimie et des Biomatériaux Supramoléculaires, Institut
de Science et d’Ingénierie Supramoléculaires
(ISIS), Université de Strasbourg UMR 7006, 8 allée
Gaspard Monge, F-67083 Strasbourg, France
- University of Strasbourg Institute for Advanced Study (USIAS), 5 allée du Général Rouvillois, 67083 Strasbourg, France
| | - Samuel Dagorne
- Institut
de Chimie de Strasbourg, CNRS-Université de Strasbourg UMR 7177, 1 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Stéphane Bellemin-Laponnaz
- Institut
de Physique et Chimie des Matériaux de Strasbourg, Université de Strasbourg CNRS UMR 7504, 23 rue du Loess, BP 43, F-67034 Strasbourg Cedex
2, France
- University of Strasbourg Institute for Advanced Study (USIAS), 5 allée du Général Rouvillois, 67083 Strasbourg, France
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12
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Lalinde E, Moreno MT, Ruiz S, Sánchez S. Synthesis, Structural, and Photophysical Studies of Phenylquinoline and Phenylquinolinyl Alkynyl Based Pt(II) Complexes. Organometallics 2014. [DOI: 10.1021/om500336v] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Elena Lalinde
- Departamento
de Química-Centro
de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain
| | - M. Teresa Moreno
- Departamento
de Química-Centro
de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain
| | - Santiago Ruiz
- Departamento
de Química-Centro
de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain
| | - Sergio Sánchez
- Departamento
de Química-Centro
de Síntesis Química de La Rioja, (CISQ), Universidad de La Rioja, 26006, Logroño, Spain
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13
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Bis(diphenylphosphino)acetylene as bifunctional ligand in cycloplatinated complexes: Synthesis, characterization, crystal structures and mechanism of MeI oxidative addition. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.07.032] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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14
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Krause JA, Zhao D, Chatterjee S, Yeung BM, Connick WB, Collins SN. X-ray and synchrotron diffraction studies of 2-(pyridin-2-yl)-1,10-phenanthroline in the role of ligand for two copper polymorphs or hydrogen bonded with 2,2,6,6-tetramethyl-4-oxopiperidinium hexafluorophosphate. Acta Crystallogr C 2013; 69:498-502. [PMID: 23629900 DOI: 10.1107/s0108270113009773] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 04/09/2013] [Indexed: 11/10/2022] Open
Abstract
Different extended packing motifs of dichlorido[2-(pyridin-2-yl)-1,10-phenanthroline]copper(II), [CuCl2(C17H11N3)], are obtained, depending on the crystallization conditions. A triclinic form, (I), is obtained from dimethylformamide-diethyl ether or methanol, whereas crystallization from dimethylformamide-water yields a monoclinic form, (II). In each case, the Cu(II) centre is in a five-coordinate distorted square-pyramidal geometry. The extended packing for both forms can be described as a highly offset π-stacking arrangement, with interlayer distances of 3.674 (3) and 3.679 (3) Å for forms (I) and (II), respectively. The reaction of diprotonated Pt(tmpip2NCN)Cl [tmpip2NCN = 2,6-bis(2,2,6,6-tetramethylpiperidylmethyl)benzyl] with AgPF6 under acidic conditions, followed by the addition of 2-(pyridin-2-yl)-1,10-phenanthroline, results in a hydrogen-bonded cocrystal, 2,2,6,6-tetramethyl-4-oxopiperidinium hexafluorophosphate-2-(pyridin-2-yl)-1,10-phenanthroline (1/1), C9H18NO(+)·PF6(-)·C17H11N3, (III). The extended packing maximizes π-π interactions in a parallel face-to-face arrangement, with an interlayer stacking distance of 3.4960 (14) Å.
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Affiliation(s)
- Jeanette A Krause
- Department of Chemistry, University of Cincinnati, Cincinnati, OH 45221-0172, USA.
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16
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Vabre B, Spasyuk DM, Zargarian D. Impact of Backbone Substituents on POCOP-Ni Pincer Complexes: A Structural, Spectroscopic, and Electrochemical Study. Organometallics 2012. [DOI: 10.1021/om3009475] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Boris Vabre
- Département
de Chimie, Université de Montréal, Montréal (Québec),
Canada H3C 3J7
| | - Denis M. Spasyuk
- Département
de Chimie, Université de Montréal, Montréal (Québec),
Canada H3C 3J7
| | - Davit Zargarian
- Département
de Chimie, Université de Montréal, Montréal (Québec),
Canada H3C 3J7
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17
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Che G, Wang X, Liu C, Chen J, Wang S, Li X. Hydrothermal syntheses, structural characterization, and photoluminescent properties of five lanthanide coordination polymers. J COORD CHEM 2012. [DOI: 10.1080/00958972.2012.736970] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Guangbo Che
- a Key Laboratory of Preparation and Applications of Environmental Friendly Materials , Jilin Normal University, Chinese Ministry of Education , Siping 136000 , People's Republic of China
- b School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013 , People's Republic of China
| | - Xiangcheng Wang
- b School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013 , People's Republic of China
| | - Chunbo Liu
- a Key Laboratory of Preparation and Applications of Environmental Friendly Materials , Jilin Normal University, Chinese Ministry of Education , Siping 136000 , People's Republic of China
- b School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013 , People's Republic of China
| | - Jing Chen
- b School of Chemistry and Chemical Engineering, Jiangsu University , Zhenjiang 212013 , People's Republic of China
| | - Shanshan Wang
- a Key Laboratory of Preparation and Applications of Environmental Friendly Materials , Jilin Normal University, Chinese Ministry of Education , Siping 136000 , People's Republic of China
| | - Xiuying Li
- a Key Laboratory of Preparation and Applications of Environmental Friendly Materials , Jilin Normal University, Chinese Ministry of Education , Siping 136000 , People's Republic of China
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18
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Blackburn OA, Coe BJ, Helliwell M, Raftery J. Syntheses, Structures, and Electronic and Optical Properties of Platinum(II) Complexes of 1,3-Bis(imino)benzene-Derived Pincer Ligands. Organometallics 2012. [DOI: 10.1021/om3003152] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Octavia A. Blackburn
- School of Chemistry, University of Manchester, Oxford Road,
Manchester M13 9PL, U.K
| | - Benjamin J. Coe
- School of Chemistry, University of Manchester, Oxford Road,
Manchester M13 9PL, U.K
| | - Madeleine Helliwell
- School of Chemistry, University of Manchester, Oxford Road,
Manchester M13 9PL, U.K
| | - James Raftery
- School of Chemistry, University of Manchester, Oxford Road,
Manchester M13 9PL, U.K
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19
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Fuertes S, Woodall CH, Raithby PR, Sicilia V. Heteropolynuclear Pt(II)–M(I) Clusters with a C∧N∧C Biscyclometalated Ligand. Organometallics 2012. [DOI: 10.1021/om300170j] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Sara Fuertes
- Department of Chemistry, University of Bath, Bath, BA2 7AY, United Kingdom
| | | | - Paul R. Raithby
- Department of Chemistry, University of Bath, Bath, BA2 7AY, United Kingdom
| | - Violeta Sicilia
- Instituto de Síntesis
Química y Catálisis Homogénea (ISQCH), CSIC - Universidad de Zaragoza, Departamento de Química
Inorgánica, Escuela de Ingeniería y Arquitectura de
Zaragoza, Campus Río Ebro, Edificio Torres Quevedo, 50018,
Zaragoza, Spain
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20
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Chatterjee S, Krause JA, Madduma-Liyanage K, Connick WB. Platinum(II) Diimine Complexes with Halide/Pseudohalide Ligands and Dangling Trialkylamine or Ammonium Groups. Inorg Chem 2012; 51:4572-87. [DOI: 10.1021/ic202462a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sayandev Chatterjee
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati,
Ohio 45221-0172, United States
| | - Jeanette A. Krause
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati,
Ohio 45221-0172, United States
| | - Kumudu Madduma-Liyanage
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati,
Ohio 45221-0172, United States
| | - William B. Connick
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati,
Ohio 45221-0172, United States
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21
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Díez Á, Lalinde E, Moreno MT. Heteropolynuclear cycloplatinated complexes: Structural and photophysical properties. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2010.12.024] [Citation(s) in RCA: 91] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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22
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Substitution reactions involving cyclometalated platinum(II) complexes: Kinetic investigations. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.08.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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23
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Binuclear cyclopalladated pincer compounds bridged by ditopic nitrogenated ligands. Inorganica Chim Acta 2011. [DOI: 10.1016/j.ica.2011.07.019] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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De la Pinta N, Fidalgo L, Madariaga G, Mautner FA, Lezama L, Cortés R. Bridging, terminal, free, anti and gauche BPA ligands in a 1D hybrid organic-inorganic Mn(II)-cyanate system. Dalton Trans 2011; 40:6033-7. [PMID: 21541392 DOI: 10.1039/c1dt10257e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A hybrid organic-inorganic chain compound of the family Mn(II)-bpa-(NCO) is presented. It contains, unusually, five different dispositions for the bpa [1,2-bis(4-pyridyl)ethane] ligand. Water molecules and free bpa ligands occupy the voids of the structure. The compound shows significant antiferromagnetic-type interactions as a consequence of different exchange pathways.
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Affiliation(s)
- Noelia De la Pinta
- Departamento de Química Inorgánica, Fac. Ciencia y Tecnología, UPV/EHU, Aptdo. 644, 48080, Bilbao, Spain
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Xie ZF, Bai FQ, Wang J, Zhang HX. DFT/TDDFT investigation of the electronic structures and optoelectronic properties of phosphorescent iridium (III) complexes with non-conjugated cyclometalated carbene ligands. Mol Phys 2011. [DOI: 10.1080/00268976.2011.582848] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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26
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Berenguer JR, Díez Á, García A, Lalinde E, Moreno MT, Sánchez S, Torroba J. Remarkable Influence of the Cyclometalating Ligand on the Nuclearity and Properties of Heterobridged (μ-X)(μ-C≡CR) Platinum(II) Complexes. Organometallics 2011. [DOI: 10.1021/om101172p] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Jesús R. Berenguer
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain
| | - Álvaro Díez
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain
| | - Ana García
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain
| | - Elena Lalinde
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain
| | - M. Teresa Moreno
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain
| | - Sergio Sánchez
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain
| | - Javier Torroba
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain
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Spasyuk DM, Gorelsky SI, van der Est A, Zargarian D. Characterization of divalent and trivalent species generated in the chemical and electrochemical oxidation of a dimeric pincer complex of nickel. Inorg Chem 2011; 50:2661-74. [PMID: 21322580 DOI: 10.1021/ic1025894] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The electrolytic and chemical oxidation of the dimeric pincer complex [κ(P),κ(C),κ(N),μ(N)-(2,6-(i-Pr(2)POC(6)H(3)CH(2)NBn)Ni](2) (1; Bn = CH(2)Ph) has been investigated by various analytic techniques. Cyclic voltammetry measurements have shown that 1 undergoes a quasi-reversible, one electron, Ni-based redox process (ΔE(0)(1/2) = -0.07 V vs Cp(2)Fe/[Cp(2)Fe](+)), and spectroelectrochemical measurements conducted on the product of the electrolytic oxidation, [1](+•), have shown multiple low-energy electronic transitions in the range of 10,000-15,000 cm(-1). Computational studies using Density Functional Theory (B3LYP) have corroborated the experimentally obtained structure of 1, provided the electronic structure description, and helped interpret the experimentally obtained absorption spectra for 1 and [1](+·). These calculations indicate that the radical cation [1](+·) is a dimeric, mixed-valent species (class III) wherein most of the spin density is delocalized over the two nickel centers (Ni(+2.5)(2)N(2)), but some spin density is also present over the two nitrogen atoms (Ni(2+)(2)N(2)·). Examination of alternative structures for open shell species generated from 1 has shown that the spin density distribution is highly sensitive toward changes in the ligand environment of the Ni ions. NMR, UV-vis, electron paramagnetic resonance (EPR), and single crystal X-ray diffraction analyses have shown that chemical oxidation of 1 with N-Bromosuccinimide (NBS) follows a complex process that gives multiple products, including the monomeric trivalent species κ(P),κ(C),κ(N)-{2,6-(i-Pr(2)PO)(C(6)H(3))(CH═NBn)}NiBr(2) (2). These studies also indicate that oxidation of 1 with 1 equiv of NBS gives an unstable, paramagnetic intermediate that decomposes to a number of divalent species, including succinimide and the monomeric divalent complexes κ(P),κ(C),κ(N)-{2,6-(i-Pr(2)PO)(C(6)H(3))(CH═NBn)}NiBr (3) and κ(P),κ(C),κ(N)-{2,6-(i-Pr(2)PO)(C(6)H(3))(CH(2)N(H)Bn)}NiBr(2) (4); a second equivalent of NBS then oxidizes 3 and 4 to 2 and other unidentified products. The divalent complex 3 was synthesized independently and shown to react with NBS or bromine to form its trivalent homologue 2. The new complexes 2 and 3 have been characterized fully.
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Affiliation(s)
- Denis M Spasyuk
- Département de Chimie, Université de Montréal, Montréal, Québec H3C 3J7, Canada
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Wen HM, Wu YH, Xu LJ, Zhang LY, Chen CN, Chen ZN. Luminescent square-planar platinum(ii) complexes with tridentate 3-bis(2-pyridylimino)isoindoline and monodentate N-heterocyclic ligands. Dalton Trans 2011; 40:6929-38. [DOI: 10.1039/c1dt10385g] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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de la Pinta N, Martín S, Urtiaga MK, Barandika MG, Arriortua MI, Lezama L, Madariaga G, Cortés R. Structural Analysis, Spectroscopic, and Magnetic Properties of the 1D Triple-Bridged Compounds [M(dca)2(bpa)] (M = Mn, Fe, Co, Zn; dca = dicyanamide; bpa = 1,2-bis(4-pyridyl)ethane) and the 3D [Ni(dca)(bpa)2]dca·6H2O. Inorg Chem 2010; 49:10445-54. [DOI: 10.1021/ic1014626] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
| | - Susana Martín
- Departamento de Química Inorgánica, Facultad de Farmacia, Universidad del País Vasco, Aptdo. 450, 01080 Vitoria-Gasteiz, Spain
| | | | - M. Gotzone Barandika
- Departamento de Química Inorgánica, Facultad de Farmacia, Universidad del País Vasco, Aptdo. 450, 01080 Vitoria-Gasteiz, Spain
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Chatterjee S, Krause JA, Oliver AG, Connick WB. Intramolecular NH···Pt Interactions of Platinum(II) Diimine Complexes with Phenyl Ligands. Inorg Chem 2010; 49:9798-808. [DOI: 10.1021/ic1007582] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sayandev Chatterjee
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Jeanette A. Krause
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
| | - Allen G. Oliver
- Department of Chemistry and Biochemistry, University of Notre Dame, Notre Dame, Indiana 46556, United States
| | - William B. Connick
- Department of Chemistry, University of Cincinnati, P.O. Box 210172, Cincinnati, Ohio 45221-0172, United States
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31
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A novel 44.66 5-connected metal-organic framework with strong fluorescent emission constructed by m-thioacetatebenzoic acid. J SOLID STATE CHEM 2010. [DOI: 10.1016/j.jssc.2010.03.034] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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32
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Alesso G, Cinellu MA, Stoccoro S, Zucca A, Minghetti G, Manassero C, Rizzato S, Swang O, Ghosh MK. Gold(iii) six-membered N⁁C⁁N pincer complexes: synthesis, structure, reactivity and theoretical calculations. Dalton Trans 2010; 39:10293-304. [DOI: 10.1039/c0dt00705f] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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N^N^C platinum(II) and palladium(II) cyclometallates of 6,6′-diphenyl-2,2′-bipyridine, L: Crystal and molecular structure of [Pd(L–H)Cl]. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.07.034] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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34
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Synthesis, characterization and electrophosphorescent properties of mononuclear platinum(II) complexes based on 2-phenylbenzoimidazole derivatives. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.04.024] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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35
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Liu Y, Li J, Hou H, Fan Y. Subtle role of counteranions in molecular construction: Structures and properties of novel Cu(II) coordination complexes with bis-(1-benzoimidazolymethylene)-(2,5-thiadiazoly)-disulfide. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2009.03.045] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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36
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Díez Á, Forniés J, Fuertes S, Lalinde E, Larraz C, López JA, Martín A, Moreno MT, Sicilia V. Synthesis and Luminescence of Cyclometalated Compounds with Nitrile and Isocyanide Ligands. Organometallics 2009. [DOI: 10.1021/om800845c] [Citation(s) in RCA: 88] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Álvaro Díez
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Plaza. S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza-CSIC, Campus Universitario del Actur,
| | - Juan Forniés
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Plaza. S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza-CSIC, Campus Universitario del Actur,
| | - Sara Fuertes
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Plaza. S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza-CSIC, Campus Universitario del Actur,
| | - Elena Lalinde
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Plaza. S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza-CSIC, Campus Universitario del Actur,
| | - Carmen Larraz
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Plaza. S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza-CSIC, Campus Universitario del Actur,
| | - José A. López
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Plaza. S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza-CSIC, Campus Universitario del Actur,
| | - Antonio Martín
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Plaza. S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza-CSIC, Campus Universitario del Actur,
| | - M. Teresa Moreno
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Plaza. S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza-CSIC, Campus Universitario del Actur,
| | - Violeta Sicilia
- Departamento de Química, Grupo de Síntesis Química de La Rioja, UA-CSIC, Universidad de La Rioja, 26006, Logroño, Spain, Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza-CSIC, Plaza. S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza-CSIC, Campus Universitario del Actur,
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Li XN, Wu ZJ, Zhang HJ. Comparative study of electronic structure and optical properties of a series of Pt(II) complexes containing different electron-donating and -withdrawing groups: a DFT study. J PHYS ORG CHEM 2009. [DOI: 10.1002/poc.1591] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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38
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Wang X, Liu Y, Hou H, Wu J, Fan Y. The synthesis of complexes using precursor complexes with ferrocenyl carboxylate units as building blocks. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.10.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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39
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Forniés J, Fuertes S, López JA, Martín A, Sicilia V. New Water Soluble and Luminescent Platinum(II) Compounds, Vapochromic Behavior of [K(H2O)][Pt(bzq)(CN)2], New Examples of the Influence of the Counterion on the Photophysical Properties of d8 Square-Planar Complexes. Inorg Chem 2008; 47:7166-76. [DOI: 10.1021/ic800265q] [Citation(s) in RCA: 104] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan Forniés
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza—CSIC, Plaza S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza—CSIC, Campus Universitario del Actur, Edificio Torres Quevedo, 50018, Zaragoza, Spain
| | - Sara Fuertes
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza—CSIC, Plaza S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza—CSIC, Campus Universitario del Actur, Edificio Torres Quevedo, 50018, Zaragoza, Spain
| | - J. Antonio López
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza—CSIC, Plaza S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza—CSIC, Campus Universitario del Actur, Edificio Torres Quevedo, 50018, Zaragoza, Spain
| | - Antonio Martín
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza—CSIC, Plaza S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza—CSIC, Campus Universitario del Actur, Edificio Torres Quevedo, 50018, Zaragoza, Spain
| | - Violeta Sicilia
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Facultad de Ciencias, Universidad de Zaragoza—CSIC, Plaza S. Francisco s/n 50009 Zaragoza, Spain, and Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Escuela Universitaria de Ingeniería Técnica Industrial, Universidad de Zaragoza—CSIC, Campus Universitario del Actur, Edificio Torres Quevedo, 50018, Zaragoza, Spain
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40
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A coordination polymer formed by cis-[(PMePh2)2Pt(NO3)2] and 2,5-bis(4-pyridyl)-1,3,4-thiadiazole. Inorganica Chim Acta 2008. [DOI: 10.1016/j.ica.2008.01.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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41
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Shi LL, Liao Y, Yang GC, Su ZM, Zhao SS. Effect of π-Conjugated Length of Bridging Ligand on the Optoelectronic Properties of Platinum(II) Dimers. Inorg Chem 2008; 47:2347-55. [DOI: 10.1021/ic7018154] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Li-Li Shi
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Yi Liao
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Guo-Chun Yang
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Zhong-Min Su
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, China
| | - Shan-Shan Zhao
- Institute of Functional Material Chemistry, Faculty of Chemistry, Northeast Normal University, Changchun, Jilin, 130024, China
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42
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Fernández D, García-Seijo MI, Bardají M, Laguna A, García-Fernández ME. Gold(i) and silver(i) complexes containing a tripodal tetraphosphine ligand: influence of the halogen and stoichiometry on the properties. The X-ray crystal structure of two gold(i) dimeric aggregates. Dalton Trans 2008:2633-42. [DOI: 10.1039/b716736a] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Zhou X, Pan QJ, Li MX, Xia BH, Zhang HX. Theoretical studies on square-planar pincer platinum(II) complex and its SO2 adducts: SO2 detector and potential luminescent probe. ACTA ACUST UNITED AC 2007. [DOI: 10.1016/j.theochem.2007.07.021] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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44
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Substitution, Addition, and Recombination Reactions of Precursor Complexes with Ferrocenyl Carboxylate Units. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200700542] [Citation(s) in RCA: 30] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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45
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Batema GD, van de Westelaken KTL, Guerra J, Lutz M, Spek AL, van Walree CA, de Mello Donegá C, Meijerink A, van Klink GPM, van Koten G. Luminescent and Electronic Properties of Stilbenoid NCN-Pincer PtII Compounds. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200601214] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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46
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Chuchuryukin AV, Chase PA, Mills AM, Lutz M, Spek AL, van Klink GPM, van Koten G. Hydroxy- and mercaptopyridine pincer platinum and palladium complexes generated by silver-free halide abstraction. Inorg Chem 2007; 45:2045-54. [PMID: 16499365 DOI: 10.1021/ic051773x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
A silver-free route has been employed for the synthesis of a number of Pd and Pt complexes supported by an NCN "pincer" ligand (NCN = [2,6-(Me2NCH2)2C6H3]-) via halide abstraction. This was achieved by the use of o-, m-, and p-hydroxypyridines or o- and p-mercaptopyridines in basic ethanol solutions. The acidic OH or SH protons are removed to generate the formally anionic ligands. X-ray crystal structure determination of these complexes shows that the bonding of the substituted pyridine ligands occurs exclusively through the pyridine N for hydroxypyridines and exclusively through the thiol S in mercaptopyridines. In the hydroxypyridine case, the ortho and para isomers tautomerize to generate pyridone structures with a covalent M-N bond, whereas the m-hydroxypyridine complex, which is unable to tautomerize, is found to still be bound through the pyridine N but in a zwitterionic structure. The mercaptopyridine complexes are the first reported examples of pincer-ligated Pd and Pt thiolate species. The pyridine ligands can be quantitatively exchanged for chloride by reaction with excess NH4Cl, a potentially useful chemical switch for ligation/decomplexation of this ligand type.
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Affiliation(s)
- Alexey V Chuchuryukin
- Debye Institute, Organic Chemistry and Catalysis, Utrecht University, Padualaan 8, 3584 CH Utrecht, The Netherlands
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47
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Fang CH, Chen YL, Yang CH, Chi Y, Yeh YS, Li EY, Cheng YM, Hsu CJ, Chou PT, Chen CT. Iridium(I) Pyridyl Azolate Complexes with Saturated Red Metal-to-Ligand Charge Transfer Phosphorescence; Fundamental and Potential Applications in Organic Light-Emitting Diodes. Chemistry 2007; 13:2686-94. [PMID: 17171730 DOI: 10.1002/chem.200601019] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Preparation of a new series of neutral metal complexes [(cod)Ir(fppz)] (1), [(cod)Ir(bppz)] (2), [(cod)Ir(fptz)] (3) and [(cod)Ir(bptz)] (4), bearing one cod ligand and a pyridyl azolate chelate are reported. A single-crystal X-ray diffraction study of 3 reveals the expected distorted square-planar geometry. The lowest absorption band consists of IrI atom increased triplet dpi-->pi* transitions (3MLCT), the assignment of which is firmly supported by the theoretical approaches. Complexes 1-4 exhibit weak phosphorescence in degassed solution at room temperature, whereas much more intense, solid-state phosphorescence appears in the range 622-649 nm. The pure MLCT emission was used as a prototypical model to address its remarkable spectral differences from the IrIII isoquinoline pyrrolide complex (5), which has mainly 3pipi phosphorescence. Complex 3 was used as a dopant to fabricate red-emitting phosphorescent organic light-emitting diodes (OLEDs). For the 7 % doped device, a maximum brightness of 3010 cd m-2 was achieved at an applied voltage of 15 V and with CIE coordinates of (0.56, 0.33), demonstrating for the first time the potential of neutral IrI complexes in OLED applications.
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Affiliation(s)
- Chung-Hong Fang
- Department of Chemistry, National Tsing Hua University, Hsinchu 300, Taiwan
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Synthesis, structure and properties of (4,4′-H2bipy)[HgBr4]·H2O with strong fluorescence. INORG CHEM COMMUN 2007. [DOI: 10.1016/j.inoche.2006.10.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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49
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Neo KE, Huynh HV, Koh LL, Henderson W, Hor TSA. Dinuclear PCP pincer complexes from Lewis acidic [Pd(OTf)(PCP)] and basic [Pd(4-Spy)(PCP)] (OTf = triflate; 4-Spy = 4-pyridinethiolate; PCP = –CH(CH2CH2PPh2)2). Dalton Trans 2007:5701-9. [DOI: 10.1039/b710752h] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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50
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Forniés J, Ibáñez S, Martín A, Sanz M, Berenguer JR, Lalinde E, Torroba J. Influence of the Pt→Ag Donor−Acceptor Bond and Polymorphism on the Spectroscopic and Optical Properties of Heteropolynuclear Benzoquinolateplatinum(II) Complexes. Organometallics 2006. [DOI: 10.1021/om0604526] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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