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Gómez de Segura D, Lalinde E, Moreno MT. Polymorphism and Mechanochromism in 2-Phenylbenzothiazole Cyclometalated Pt II Complexes with Chelating N ∧O Ligands. Inorg Chem 2022; 61:20043-20056. [PMID: 36442499 DOI: 10.1021/acs.inorgchem.2c03423] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
New cyclometalated PtII complexes with 2-phenylbenzothiazole (pbt) and two different picolinate ligands [Pt(pbt)(R-pic-κN,O)] (R = H (1), OH (2)) were prepared. In contrast to 1, the OH substituent group on 2 allows modulation of the packing in the solid state through donor-acceptor H-bonding interactions with the CH2Cl2 solvent. Thus, three pseudopolymorphs of 2 with different aggregation degrees were isolated, including yellow 2-Y, orange-red 2-R (2·0.5CH2Cl2) and black 2-B (2·0.75CH2Cl2) with emissions at 540, 656, and 740 nm, respectively, in the solid state at 298 K. 2-R and 2-B can be transformed to the pristine solid 2. Studies of their crystal structures show that 1 and 2-Y stack in columns with only π···π stacking interactions, whereas 2-R displays strong aggregated 1D infinite chains based on Pt···Pt and π···π stacking interactions, consistent with the colors and the photophysical properties, measured in several media. Interestingly, 1 and 2 exhibit reversible mechanochromic behavior with high contrast in the color and color emission upon mechanical grinding due to a phase transition between a crystalline and an amorphous state, as confirmed by powder X-ray diffraction (PXRD) studies. Theoretical calculations indicate that Pt···Pt contacts are more relevant in the trimers and tetramers than in the dimers, particularly in their T1 states, associated with a change from a 3IL/3MLCT transition in the monomer to 3MM(L+L')CT in the oligomers. Noncovalent interaction (NCI) theoretical studies indicate that the π···π stacking among chelates also exerts a strong influence in the metal-metal-to-ligand charge transfer transition character.
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Affiliation(s)
- David Gómez de Segura
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006 Logroño, Spain
| | - 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
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Martínez-Junquera M, Lalinde E, Moreno MT. Multistimuli-Responsive Properties of Aggregated Isocyanide Cycloplatinated(II) Complexes. Inorg Chem 2022; 61:10898-10914. [PMID: 35775932 PMCID: PMC9348835 DOI: 10.1021/acs.inorgchem.2c01400] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Here, we describe the neutral cyclometalated tert-butylisocyanide PtII complexes, [Pt(C∧N)Cl(CNBut)] 1, the double salts [Pt(C∧N)(CNBut)2][Pt(C∧N)Cl2] 2, and the cationic complexes [Pt(C∧N)(CNBut)2]ClO4 3 [C∧N = difluorophenylpyridine (dfppy, a), 4-(2-pyridyl)benzaldehyde (ppy-CHO, b)]. A comparative study of the pseudopolymorphs 1a, 1a·CHCl3, 1b, 1b·0.5Toluene, 1b·0.5PhF, and 3a·0.25CH2Cl2 reveals strong aggregation through Pt···Pt and/or π···π stacking interactions to give a variety of distinctive one-dimensional (1D) infinite chains, which modulate the photoluminescent properties. This intermolecular long-range aggregate formation is the main origin of the photoluminescent behavior of 1a and 1b complexes, which exhibit highly sensitive and reversible responses to multiple external stimuli including different volatile organic compounds (VOCs), solvents, temperatures, and pressures, with distinct color and phosphorescent color switching from green to red. Furthermore, complex 1b undergoes supramolecular self-assembly via Pt···Pt and/or π···π interactions into a polymer thin polystyrene (PS) film 10 wt % in response to toluene vapors, and 3a exhibits vapochromic and vapoluminescent behavior. Theoretical simulations on the dimer, trimer, and tetramer models of 1a and 1b have been carried out to get insight into the photophysical properties in the aggregated solid state.
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Affiliation(s)
- Mónica Martínez-Junquera
- Departamento de Química-Centro de Síntesis Química de La Rioja (CISQ), Universidad de La Rioja, 26006 Logroño, Spain
| | - 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
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Moussa J, Freeman GR, Williams JAG, Chamoreau LM, Herson P, Amouri H. Synthesis and Luminescence Properties of Cycloplatinated Complexes with a Chelating N∧C Pyridine-Derived N-Heterocyclic Carbene - Influence of 2,4,6-Triphenylphosphinine versus Triphenylphosphine. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500879] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhao R, Wang FL, Liu G, Shen X, Wang X, Yang T, Qiu Z, Zhang YJ, Jing S, Xu Y, Zhu DR. Syntheses, structures and properties of cyclometalated iridium(III) complexes based on 2-phenyl-5-nitropyridyl and different strong-field ancillary ligands. Inorganica Chim Acta 2014. [DOI: 10.1016/j.ica.2013.09.027] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Majumdar P, Yuan X, Li S, Le Guennic B, Ma J, Zhang C, Jacquemin D, Zhao J. Cyclometalated Ir(iii) complexes with styryl-BODIPY ligands showing near IR absorption/emission: preparation, study of photophysical properties and application as photodynamic/luminescence imaging materials. J Mater Chem B 2014; 2:2838-2854. [DOI: 10.1039/c4tb00284a] [Citation(s) in RCA: 97] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Heteroleptic C^N cyclometalated iridium(iii) complexes showing strong NIR absorption were prepared.
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Affiliation(s)
- Poulomi Majumdar
- State Key Laboratory of Fine Chemical
- School of Chemical Engineering
- Dalian University of Technology
- Dalian, P.R. China
| | - Xiaolin Yuan
- Center Laboratory
- Affiliated Zhongshan Hospital of Dalian University
- Dalian 116001, P.R. China
| | - Shengfu Li
- Center Laboratory
- Affiliated Zhongshan Hospital of Dalian University
- Dalian 116001, P.R. China
| | - Boris Le Guennic
- Institut des Sciences Chimiques de Rennes
- CNRS
- Université de Rennes 1
- 35042 Rennes Cedex, France
| | - Jie Ma
- State Key Laboratory of Fine Chemical
- School of Chemical Engineering
- Dalian University of Technology
- Dalian, P.R. China
| | - Caishun Zhang
- State Key Laboratory of Fine Chemical
- School of Chemical Engineering
- Dalian University of Technology
- Dalian, P.R. China
| | - Denis Jacquemin
- Laboratoire CEISAM
- UMR CNR 6230
- Université de Nantes
- 44322 Nantes Cedex 3, France
- Institut Universitaire de France
| | - Jianzhang Zhao
- State Key Laboratory of Fine Chemical
- School of Chemical Engineering
- Dalian University of Technology
- Dalian, P.R. China
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Moussa J, Cheminel T, Freeman GR, Chamoreau LM, Williams JAG, Amouri H. An unprecedented cyclometallated platinum(ii) complex incorporating a phosphinine co-ligand: synthesis and photoluminescence behaviour. Dalton Trans 2014; 43:8162-5. [DOI: 10.1039/c4dt00589a] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first luminescent platinum(ii) complex bearing phosphinine co-ligands with a long-lived emission from a phosphinine-localised triplet excited state is reported.
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Affiliation(s)
- Jamal Moussa
- UPMC Université Paris 06
- Institut Parisien de Chimie Moléculaire (UMR 8232)
- 75252 Paris Cedex 05, France
| | - Thomas Cheminel
- UPMC Université Paris 06
- Institut Parisien de Chimie Moléculaire (UMR 8232)
- 75252 Paris Cedex 05, France
| | | | - Lise-Marie Chamoreau
- UPMC Université Paris 06
- Institut Parisien de Chimie Moléculaire (UMR 8232)
- 75252 Paris Cedex 05, France
| | | | - Hani Amouri
- UPMC Université Paris 06
- Institut Parisien de Chimie Moléculaire (UMR 8232)
- 75252 Paris Cedex 05, France
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Sun J, Wu W, Zhao J. Long-Lived Room-Temperature Deep-Red-Emissive Intraligand Triplet Excited State of Naphthalimide in Cyclometalated IrIII Complexes and its Application in Triplet-Triplet Annihilation-Based Upconversion. Chemistry 2012; 18:8100-12. [DOI: 10.1002/chem.201200224] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Indexed: 01/10/2023]
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Hudson ZM, Blight BA, Wang S. Efficient and High Yield One-Pot Synthesis of Cyclometalated Platinum(II) β-Diketonates at Ambient Temperature. Org Lett 2012; 14:1700-3. [DOI: 10.1021/ol300242f] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Zachary M. Hudson
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Barry A. Blight
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
| | - Suning Wang
- Department of Chemistry, Queen’s University, 90 Bader Lane, Kingston, Ontario, Canada K7L 3N6
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Robinson R, Karikachery AR, Sharp PR. Photophysical properties of 4,4′-di-tert-butyl-2,2′-bipyridine supported 6-membered 2,2′-diphenyl-X platinacycles (X = CH2, NMe, O). Dalton Trans 2012; 41:2601-11. [DOI: 10.1039/c2dt11594h] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Spencer M, Santoro A, Freeman GR, Díez Á, Murray PR, Torroba J, Whitwood AC, Yellowlees LJ, Williams JAG, Bruce DW. Phosphorescent, liquid-crystalline complexes of platinum(ii): influence of the β-diketonate co-ligand on mesomorphism and emission properties. Dalton Trans 2012; 41:14244-56. [DOI: 10.1039/c2dt31525d] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Hanson K, Roskop L, Patel N, Griffe L, Djurovich PI, Gordon MS, Thompson ME. Photophysical and electrochemical properties of 1,3-bis(2-pyridylimino)isoindolate platinum(ii) derivatives. Dalton Trans 2012; 41:8648-59. [DOI: 10.1039/c2dt30354j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Kenneth Hanson
- Department of Chemistry, University of Southern California, Los Angeles, CA 90089, USA
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Ma L, Guo H, Li Q, Guo S, Zhao J. Visible light-harvesting cyclometalated Ir(iii) complexes as triplet photosensitizers for triplet–triplet annihilation based upconversion. Dalton Trans 2012; 41:10680-9. [DOI: 10.1039/c2dt30955f] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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13
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The triplet state of organo-transition metal compounds. Triplet harvesting and singlet harvesting for efficient OLEDs. Coord Chem Rev 2011. [DOI: 10.1016/j.ccr.2011.01.042] [Citation(s) in RCA: 952] [Impact Index Per Article: 73.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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14
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Shen X, Wang FL, Sun F, Zhao R, Wang X, Jing S, Xu Y, Zhu DR. New 2-phenyl-5-nitropyridyl containing iridium(III) cyclometalated complexes: syntheses, structures, electrochemistry and photophysical properties. INORG CHEM COMMUN 2011. [DOI: 10.1016/j.inoche.2011.06.010] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Sun H, Guo H, Wu W, Liu X, Zhao J. Coumarin phosphorescence observed with N⁁N Pt(ii) bisacetylide complex and its applications for luminescent oxygen sensing and triplet–triplet-annihilation based upconversion. Dalton Trans 2011; 40:7834-41. [DOI: 10.1039/c1dt10490j] [Citation(s) in RCA: 97] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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16
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Mou X, Wu Y, Liu S, Shi M, Liu X, Wang C, Sun S, Zhao Q, Zhou X, Huang W. Phosphorescent platinum(ii) complexes containing different β-diketonate ligands: synthesis, tunable excited-state properties, and their application in bioimaging. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm10718f] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
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17
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Rausch AF, Monkowius UV, Zabel M, Yersin H. Bright Sky-Blue Phosphorescence of [n-Bu4N][Pt(4,6-dFppy)(CN)2]: Synthesis, Crystal Structure, and Detailed Photophysical Studies. Inorg Chem 2010; 49:7818-25. [DOI: 10.1021/ic100851b] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andreas F. Rausch
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, 93053 Regensburg, Germany
| | - Uwe V. Monkowius
- Institut für Anorganische Chemie, Johannes Kepler Universität Linz, 4040 Linz, Austria
| | - Manfred Zabel
- Zentrale Analytik der Universität Regensburg, Röntgenstrukturanalyse, 93053 Regensburg, Germany
| | - Hartmut Yersin
- Institut für Physikalische und Theoretische Chemie, Universität Regensburg, 93053 Regensburg, Germany
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