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Wang B, Fu Y, Shen Y, Wang P, Chen Y, Feng F, Xu Z, Huang W, Wu D. Suppressing the Thermal Quenching Effect via a Cluster Conformer in Copper(I)-Iodide Coordination Polymeric Phosphors for High-Power White LED Lighting. Inorg Chem 2024; 63:8070-8078. [PMID: 38656984 DOI: 10.1021/acs.inorgchem.4c00069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/26/2024]
Abstract
High-power LED lighting is a crucial challenge due to the notorious thermal quenching (TQ) effect of traditional phosphors at high operating currents, which would result in poor device performance and hamper practical optoelectronic application. Herein, we demonstrate ligand engineering of a cubane- versus staircase-like [Cu4I4] conformer as a node in coordination polymers, which remarkably suppresses the TQ effect of cluster-based photoluminescence. For complex 1 (the formula [Cu4I4(bbimb)2]n) with the cubane-like [Cu4I4] conformer as a node, the metallophilicity interaction enables ultrabright triplet emission with a photoluminescence quantum yield over 82%, and the phonon-assisted detrapping process of excitons effectively suppresses the TQ effect in the wide temperature range. In contrast, the staircase-like [Cu4I4] conformer as a node in complex 2 (the formula [Cu4I4(bbtmb)2]n) exhibits a serious TQ effect over the investigated temperature. Phosphor-converted white LEDs (pc-wLEDs) were fabricated by integrating the cluster-based coordination polymers as a color converter, and their electroluminescence performances were investigated under high bias currents. The prototype pc-wLED device by incorporating the phosphor with the suppressed TQ effect exhibits a continuous rise in brightness under a high bias current of 300 mA. The results demonstrate that ligand engineering of the cluster conformer via suppressing the TQ effect proves efficient in designing an ideal color converter for high-power pc-wLED lighting.
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Affiliation(s)
- Bin Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Yuzhe Fu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Yi Shen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Pingping Wang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Yang Chen
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Fan Feng
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Zhong Xu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Wei Huang
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
| | - Dayu Wu
- Jiangsu Key Laboratory of Advanced Catalytic Materials and Technology, Advanced Catalysis & Green Manufacturing Collaborative Innovation Center, School of Petrochemical Engineering, Changzhou University, Changzhou, Jiangsu 213164, P. R. China
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A chiral cylinder-like metallomacrocycles bis tri-N-heterocyclic carbene silver(I): Synthesis, characterization and anticancer study. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Haziz UF, Haque RA, Amirul A, Razali MR. Synthesis, Structural Analysis and Antibacterial Studies of Bis- and Open Chain Tetra-N-Heterocyclic Carbene Dinuclear Silver(I) Complexes. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2021.130301] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Nayak S, Gaonkar SL. Coinage Metal N-Heterocyclic Carbene Complexes: Recent Synthetic Strategies and Medicinal Applications. ChemMedChem 2021; 16:1360-1390. [PMID: 33277791 DOI: 10.1002/cmdc.202000836] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Indexed: 12/15/2022]
Abstract
New weapons are constantly needed in the fight against cancer. The discovery of cisplatin as an anticancer drug prompted the search for new metal complexes. The successful history of cisplatin motivated chemists to develop a plethora of metal-based molecules. Among them, metal-N-heterocyclic carbene (NHC) complexes have gained significant attention because of their suitable qualities for efficient drug design. The enhanced applications of coinage metal-NHC complexes have encouraged a gradually increasing number of studies in the fields of medicinal chemistry that benefit from the fascinating chemical properties of these complexes. This review aims to present recent developments in synthetic strategies and medicinal applications of copper, silver and gold complexes supported by NHC ligands.
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Affiliation(s)
- Swarnagowri Nayak
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
| | - Santosh L Gaonkar
- Department of Chemistry, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, Karnataka, India
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Tri N-Heterocyclic Carbene Trinuclear Silver(I) complexes: Synthesis and In Vitro cytotoxicity studies. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128890] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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Riaz A, Iqbal MA, Bhatti HN, Shahid M. Synthesis of sandwich type acyclic tetra-nuclear silver(I)-N-heterocyclic carbene complexes for wound healing applications. Z NATURFORSCH C 2020; 75:369-376. [PMID: 32589611 DOI: 10.1515/znc-2020-0069] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2020] [Accepted: 06/01/2020] [Indexed: 12/21/2022]
Abstract
Two meta-xylyl linked tetrakis-benzimidazolium salts (L1-L2) as multidentate ligands and two respective silver complexes (C1 and C2) were synthesized. A multistep reaction was done at room temperature, starting with simple benzimidazole and alkyl halides, going through precursors and salt formation by reflux and finally in situ deprotonation of tetrabenzimidazolium salts with Ag2O to yield respective tetra-nuclear Ag(I)-N-heterocyclic Carbene (NHC) complexes. Propyl and butyl groups were bonded at the terminal positions of tetra-azolium open chain salts. Characterization of compounds was done by analytical and spectroscopic techniques. On the basis of spectroscopic data, a chemical structure with open chains having four Ag(I) ions sandwiched between NHC layers was established. Potential of synthesized complexes (C1 & C2) for wound contraction was evaluated and compared with standard wound contraction gel. Percentage wound contraction of both complexes was found very close to that of standard drug used in parallel.
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Affiliation(s)
- Ayesha Riaz
- Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Muhammad Adnan Iqbal
- Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan
- Department of Chemistry, Organometallic & Coordination Chemistry Laboratory, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture, Faisalabad, 38040, Pakistan
| | - Muhammad Shahid
- Department of Biochemistry, University of Agriculture, Faisalabad, 38040, Pakistan
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Ali S, Riaz A, Nawaz H, Majeed MI, Iqbal MA, Bhatti HN, Rashid N, Kashif M, Tahir M, Nasir S, Ullah S, Farooq S, Naseem A. Raman spectral characterization of silver metal-based complexes of different benzimidazolium ligands. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 232:118162. [PMID: 32106031 DOI: 10.1016/j.saa.2020.118162] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2019] [Revised: 02/13/2020] [Accepted: 02/16/2020] [Indexed: 06/10/2023]
Abstract
In this study, Raman spectroscopy has been employed for the characterization of two structurally different monodentate N-heterocyclic carbene ligands (ligand-1 and ligand-2) and their respective complexes (complex-1 and complex-2). The Raman spectral features are found helpful for the confirmation of formation of complexes. The significant Raman spectral features are identified for benzimidazole ring with higher intensities in carbene complexes having more polarizability as compared to their ligands, providing the evidence for the formation of coordinate covalent bond. The successful complexation is further supported by using multivariate data analysis technique, Principal Component Analysis (PCA), which is found very helpful to highlight the variability of Raman spectral data of both ligands and their respective metal complexes from each other. Moreover, the coordination of carbene with Ag(I) is confirmed from the dominant spectral markers of higher intensities at 359 cm-1 in complex-1 and 338 cm-1 in complex-2. The effective and reliable characterization and confirmation of metal complexes indicates the potential of Raman spectroscopy for its use for the characterization of the organometallic complexes and other chemical products.
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Affiliation(s)
- Saqib Ali
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan
| | - Ayesha Riaz
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan
| | - Haq Nawaz
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan.
| | | | | | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan
| | - Nosheen Rashid
- Department of Chemistry, University of Central Punjab, Faisalabad campus, Faisalabad, Pakistan
| | - Muhammad Kashif
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan
| | - Muhammad Tahir
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan
| | - Saira Nasir
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan
| | - Saif Ullah
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan
| | - Sidra Farooq
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan
| | - Ammara Naseem
- Department of Chemistry, University of Agriculture Faisalabad-38040, Pakistan
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Ali S, Riaz A, Majeed MI, Iqbal MA, Bhatti HN, Rashid N, Kashif M, Tahir M, Nasir S, Farooq S, Naseem A, Nawaz H. Raman spectroscopy along with Principal Component Analysis for the confirmation of Silver(I)-N-heterocyclic carbene complex formation. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2020; 228:117851. [PMID: 31786050 DOI: 10.1016/j.saa.2019.117851] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/17/2019] [Revised: 11/20/2019] [Accepted: 11/23/2019] [Indexed: 06/10/2023]
Abstract
In this study Raman spectroscopy is employed for the characterization of two different ligands called as S1 and S2 and their respective co-ordinate complexes called C1 and C2. Specific Raman spectral signatures are observed for each of these Silver(I)-N-heterocyclic carbene complexes Ag(I)-(NHCs), which can be associated with the imidazolium ring, part of both of the ligands, indicating the formation of new coordinate covalent bond. For the detailed analysis, Raman spectral data of these ligands and complexes is analyzed by multivariate data analysis technique, Principal Component Analysis (PCA) which is found very helpful to differentiate two ligands and complexes from each other. The significant Raman peaks with higher intensities in the complexes as compared to the respective ligands are associated with imidazole ring which can be attributed to the enhanced polarizability of this ring on complex formation. Moreover, the spectral features associated with (AgC) bond are observed with higher intensity at 360 in (C1) and 383 in (C2). This study indicates the potential of Raman spectroscopy for the characterization and confirmation of formation of organometallic complexes and other chemical products.
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Affiliation(s)
- Saqib Ali
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Ayesha Riaz
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | | | | | - Haq Nawaz Bhatti
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Nosheen Rashid
- Department of Chemistry, University of Central Punjab, Faisalabad Campus, Faisalabad, Pakistan
| | - Muhammad Kashif
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Muhammad Tahir
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Saira Nasir
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Sidra Farooq
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Ammara Naseem
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan
| | - Haq Nawaz
- Department of Chemistry, University of Agriculture Faisalabad, 38040, Pakistan.
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Haque RA, Iqbal MA, Mohamad F, Razali MR. Antibacterial and DNA cleavage activity of carbonyl functionalized N -heterocyclic carbene-silver(I) and selenium compounds. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.092] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Fatima T, Haque RA, Iqbal MA, Ahmad A, Hassan LEA, Taleb-Agha M, Ahamed MBK, Majid AA, Razali MR. Tetra N -heterocyclic carbene dinuclear silver(I) complexes as potential anticancer agents: Synthesis and in vitro anticancer studies. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.10.045] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Selvarajoo PD, Haque RA, Haziz UF, Avicor SW, Wajidi MF, Razali MR. Dinuclear silver(I)- N -heterocyclic carbene complexes: Synthesis, characterization and larvicidal activity of bis-imidazolium dinuclear silver(I)- N -heterocyclic carbene complexes. J Inorg Biochem 2017; 175:232-238. [DOI: 10.1016/j.jinorgbio.2017.07.030] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2017] [Revised: 07/20/2017] [Accepted: 07/26/2017] [Indexed: 10/19/2022]
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Ashok Kumar C, Divya D, Nagarajaprakash R, Veena V, Vidhyapriya P, Sakthivel N, Manimaran B. Self-assembly of manganese(I) and rhenium(I) based semi-rigid ester functionalized M 2 L 2 -type metallacyclophanes: Synthesis, characterization and cytotoxicity evaluation. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.06.003] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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