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Veerapathiran S, Muduli G, Rawat A, Siddhant K, Singh J, Matsumoto K, Tsutsumi O, Prabusankar G. Organo Chalcogenone-Triggered Luminescent Copper(I) Clusters for Light Emitting Applications. Inorg Chem 2024; 63:12708-12720. [PMID: 38943619 DOI: 10.1021/acs.inorgchem.3c04637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/01/2024]
Abstract
A novel organo sulfur and selenium-controlled emission behavior in discrete copper(I) clusters has been demonstrated for the first time. The pentanuclear [Cu5Br5(L1)2] (1), trinuclear [Cu3Br3(L2)2] (2), dinuclear [Cu2I2(L1)2] (3), and tetranuclear [Cu4I4(L2)2CH3CN] (4) copper(I) discrete clusters have been synthesized from the reaction between L1 [L1 = 1-isopropyl-3-(pyridin-2-yl)-imidazol-2-thione] or L2 [L2 = 1-isopropyl-3-(pyridin-2-yl)-imidazol-2-selone] chelating ligands and corresponding copper(I) halide salts. These new clusters have been characterized by FT-IR, UV-visible, thermogravimetric analysis, and fluorescence spectroscopy techniques. Single-crystal X-ray diffraction studies reveal that 1-4 consists of abundant d10-d10 interactions. The structural and bonding features of clusters have been investigated using density functional theory calculations. Notably, the L2-ligated 2 and 4 are poorly emissive, while L1-ligated 1 and 3 showed strong emission in the orange and green regions, respectively. The time-dependent density functional theory natural transition orbital calculations of 1 and 3 reveal the nature of the transitions contributed by 3MLCT/3LLCT/3ILCT. Photoluminescence quantum yields of 1 and 3 are 19 and 11%, with average lifetimes of 21.55 and 6.57 μs, respectively. 1 and 3 were coated on prototype LED bulbs for light-emitting performance.
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Affiliation(s)
- Sabari Veerapathiran
- Organometallics and Materials Chemistry Laboratory, Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Gopendra Muduli
- Organometallics and Materials Chemistry Laboratory, Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Arushi Rawat
- Department of Applied Chemistry, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Kumar Siddhant
- Department of Applied Chemistry, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Joginder Singh
- Organometallics and Materials Chemistry Laboratory, Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502285, India
| | - Kohsuke Matsumoto
- Department of Applied Chemistry, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Osamu Tsutsumi
- Department of Applied Chemistry, Ritsumeikan University, Kusatsu 525-8577, Japan
| | - Ganesan Prabusankar
- Organometallics and Materials Chemistry Laboratory, Department of Chemistry, Indian Institute of Technology Hyderabad, Kandi, Sangareddy, Telangana 502285, India
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Shao JJ, Xue ZD, Chen WM, Zhang Y, Gao Q, Chen LZ, Wang FM. Realizing Color Transitions for Three Copper (I) Cluster Organic-Inorganic Hybrid Materials by Adjusting Reaction Conditions. Chemistry 2024:e202401553. [PMID: 38937940 DOI: 10.1002/chem.202401553] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2024] [Revised: 06/25/2024] [Accepted: 06/27/2024] [Indexed: 06/29/2024]
Abstract
Copper iodide organic-inorganic hybrid materials have been favored by many researchers in the field of solid-state lighting (SSL) due to their structural diversity and optical adjustability. In this paper, three isomeric copper iodide cluster hybrid materials, Cu4I6(L)2(1), Cu5I4.5Cl2.5(L)2(2) and Cu5I7(L)2) (3) (L=1-(4-methylpyrimidin-2-yl)-1,4-diazabicyclo[2.2.2]octan-1-ium), were achieved by adjusting the reaction conditions. The crystal color transit from green, yellow to orange and the internal quantum yield (IQY) increase from 57 %-88 %. All three complexes have good thermal stability, good solution processability, and high quantum yield. And origin and mechanism of luminescence of complexes were further studied. This study can provide ideas and theoretical basis for the regulation of cuprous iodide cluster luminescent materials.
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Affiliation(s)
- Juan-Juan Shao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212003, Zhenjiang, P. R. China
| | - Zhen-Dong Xue
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212003, Zhenjiang, P. R. China
| | - Wei-Min Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212003, Zhenjiang, P. R. China
| | - Yi Zhang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212003, Zhenjiang, P. R. China
| | - Qiang Gao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212003, Zhenjiang, P. R. China
| | - Li-Zhuang Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212003, Zhenjiang, P. R. China
| | - Fang-Ming Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, 212003, Zhenjiang, P. R. China
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Mensah A, Liu XY, Hu BX, Kweku EV, Wang FM, Chen LZ, Zheng SJ. One Pot Synthesis of New Benzimidazole Derivatives with Exceptionally High Luminescence Quantum Efficiency. Curr Org Synth 2024; 21:1091-1101. [PMID: 39044697 DOI: 10.2174/0115701794271985231219070212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 10/16/2023] [Accepted: 10/26/2023] [Indexed: 07/25/2024]
Abstract
AIM AND OBJECTIVES There are different approaches to the synthesis of benzimidazole. In this article, five new benzimidazole derivatives, BMPO, Me-BMPO, Di-MeBMPO, F-BMPO and Cl-BMPO where (BMPO=3-[(1H)-benzo[d]imidazol-2-yl]pyridin-2(1H)-one), have been prepared. Another study was carried out on luminescence properties and their potential applications for the detection of transition metal ions. MATERIALS AND METHODS From the one-pot synthesis approach, all the derivatives of the benzimidazole compounds were obtained. The compounds were characterized using HRMS, 1HNMR, 13CNMR, and X-ray crystallography. Herein, a mechanism has been deciphered by predicting the release of HCl(g). RESULTS All compounds showed a strong deep blue emission when dissolved in dimethylacetamide (DMA), with emission wavelengths at 423, 428, 435, 423, and 421 nm, and half-times of 3.64, 2.77, 2, 19, 3.42 and 3.52 ns, respectively. In addition, their emission quantum yields were determined to be 72, 50, 42, 73 and 80%. CONCLUSION Five new benzimidazole derivatives, BMPO, Me-BMPO, Di-MeBIPO, F-BIPO, and Cl-BIPO, have been successfully synthesized by the one-pot synthesis method, and their structures are characterized and confirmed. The compounds exhibited exceptional luminescence by emitting a strong blue light in DMA with high fluorescence quantum yields between 42~80%.
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Affiliation(s)
- Abraham Mensah
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Xin-Ye Liu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Bing-Xiang Hu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Ennin Vendish Kweku
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Fang-Ming Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Li-Zhuang Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
| | - Shao-Jun Zheng
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, 212003, P. R. China
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Näther C, Müller-Meinhard A, Jess I. Synthesis, crystal structure and thermal properties of poly[[μ-1,2-bis-(pyridin-4-yl)ethene-κ 2N: N'-μ-bromido-copper(I)] 1,2-bis-(pyridin-4-yl)ethene 0.25-solvate]. Acta Crystallogr E Crystallogr Commun 2023; 79:1028-1032. [PMID: 37936841 PMCID: PMC10626962 DOI: 10.1107/s205698902300885x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2023] [Accepted: 10/09/2023] [Indexed: 11/09/2023]
Abstract
The reaction of copper(I) bromide with 1,2-bis-(pyridin-4-yl)ethene in aceto-nitrile leads to the formation of the title compound, {[CuBr(C12H10N2)]·0.25C12H10N2}n or CuBr(4-bpe)·0.25(4-bpe) [4-bpe = 1,2-bis-(pyridin-4-yl)ethene]. The asymmetric unit consists of one copper(I) cation and one bromide anion in general positions as well as two crystallographically independent half 4-bpe ligands and a quarter of a disordered 4-bpe solvate mol-ecule that are completed by centers of inversion. The copper(I) cations are tetra-hededrally coordinated as CuBr2N2 and linked by pairs of μ-1,1-bridging bromide anions into centrosymmetric dinuclear units that are further connected into layers by the 4-bpe coligands. Between the layers, inter-layer C-H⋯Br hydrogen bonding is observed. The layers are arranged in such a way that cavities are formed in which the disordered 4-bpe solvate mol-ecules are located. Powder X-ray (PXRD) investigations reveal that a pure sample has been obtained. Thermogravimetric (TG) and differential thermoanalysis (DTA) measurements show two mass losses that are accompanied by endothermic events in the DTA curve. The first mass loss correspond to the removal of 0.75 4-bpe mol-ecules, leading to the formation of (CuBr)2(4-bpe), already reported in the literature as proven by PXRD.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Asmus Müller-Meinhard
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
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Cai M, Zheng X, Luo F, Zheng L, Cai Z. One-dimensional coordinated polymers of tetraphenylethene pyridine and copper-iodide for fluorescence detection of nitroaromatic explosives. LUMINESCENCE 2023; 38:1904-1911. [PMID: 37559555 DOI: 10.1002/bio.4576] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2023] [Revised: 07/31/2023] [Accepted: 08/08/2023] [Indexed: 08/11/2023]
Abstract
The spatial arrangement of molecules plays a crucial role in determining the macroscopic properties of functional materials. Coordinated polymers (CPs) formed by self-assembly of organic isomeric ligands and metals offer unique performance characteristics. In this study, we present the investigation of a one-dimensional CP, named CIT-E, composed of tetraphenylethene pyridine derivative (TPE-2by-2-E) ligands and copper iodide. The resulting CP exhibits a one-dimensional bead chain structure with exceptional thermal and chemical stability. By leveraging the competitive absorption between CIT-E and the explosive analog 2,4-dinitroaniline, we achieve detection of the explosive through changes in the absorption intensity of the excitation light source and subsequent fluorescence response. The CP demonstrates high selectivity and anti-interference ability in detecting 2,4-dinitroaniline in aqueous solution, with a detection linear range of 0.1 to 300 μM and a detection limit of 0.05 μM, surpassing the national third-level emission standard. These findings highlight the potential of CP CIT-E as a promising material for the detection of explosive nitroaromatic compounds.
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Affiliation(s)
- Minjuan Cai
- College of Chemistry, Chemical Engineering and Environment; Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou, China
| | - Xuan Zheng
- College of Chemistry, Chemical Engineering and Environment; Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou, China
| | - Fenqiang Luo
- College of Chemical Engineering; Collaborative Innovation Center of Fine Chemicals in Fujian Province, Zhangzhou Institute of Technology, Zhangzhou, China
| | - Liyan Zheng
- School of Chemical Science and Technology, Yunnan University, Kunming, China
| | - Zhixiong Cai
- College of Chemistry, Chemical Engineering and Environment; Fujian Provincial Key Laboratory of Modern Analytical Science and Separation Technology, Minnan Normal University, Zhangzhou, China
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Jiang ZH, Shang P, Jiang ZW, Lu T, Guan HM, Li YH, Gui LC, Jiang XF. Self-Assembly of an Anionic [Cu 5I 8] 3- Supramolecular Cluster Driven by Ion-Pair Interaction and Catalytic Properties. Inorg Chem 2023; 62:15403-15411. [PMID: 37703056 DOI: 10.1021/acs.inorgchem.3c01472] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/14/2023]
Abstract
The rational design and controlling synthesis of an anionic cuprous iodide supramolecular cluster with high nuclearity through noncovalent interactions remains a significant challenge. Herein, a cationic organic ligand (L1)3+ was driven by anion-cation ion-pair electrostatic interaction to induce free cuprous iodide to aggregate into an anionic supramolecular cluster, [(Cu5I8)3-(L1)3+] (C1). Moreover, five copper(I) atoms bind with eight iodides through multiply bridged Cu-I bonds associated with intramolecular cuprophilic interactions in this butterfly-shaped cluster core. Supramolecular cluster C1 exhibited a solid-state emission at 380 nm and an emission at 405 nm in acetonitrile at room temperature, respectively. Interestingly, this unprecedented cuprous iodide cluster demonstrated a good catalytic performance for azide-alkyne cycloaddition reaction (CuAAC) and the catalytic yield can be up to 80% for eight different substrates at 80 °C. Furthermore, the density functional theory (DFT) calculation revealed that the thermodynamic-dependent cycloaddition reaction underwent a four-step pathway with an overall energy barrier of -43.6 kcal mol-1 on the basis of intermediates monitored by mass spectrum.
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Affiliation(s)
- Zi-Hao Jiang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, 430062 Wuhan, Hubei, China
| | - Ping Shang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, 430062 Wuhan, Hubei, China
| | - Zi-Wei Jiang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, 430062 Wuhan, Hubei, China
| | - Tao Lu
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, 430062 Wuhan, Hubei, China
| | - Hui-Ming Guan
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, 430062 Wuhan, Hubei, China
| | - Yu-Hua Li
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, 430062 Wuhan, Hubei, China
| | - Liu-Cheng Gui
- State Key Laboratory for the Chemistry and Molecular Engineering of Medicinal Resources, School of Chemistry & Pharmaceutical Sciences, Guangxi Normal University, 541004 Guilin, Guangxi, China
| | - Xuan-Feng Jiang
- Key Laboratory of Green Preparation and Application for Functional Materials, Ministry of Education, Collaborative Innovation Center for Advanced Organic Chemical Materials Co-constructed by the Province and Ministry, Hubei Key Laboratory of Polymer Science, School of Materials Science and Engineering, Hubei University, 430062 Wuhan, Hubei, China
- Hubei Jiangxia Laboratory, 430200 Wuhan, China
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7
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Almushaikeh AM, Wang H, Gutiérrez-Arzaluz L, Yin J, Huang RW, Bakr OM, Mohammed OF. Zero-dimensional Cu(I)-based organometallic halide with green cluster-centred emission for high resolution X-ray imaging screens. Chem Commun (Camb) 2023; 59:4447-4450. [PMID: 36946152 DOI: 10.1039/d3cc00730h] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/23/2023]
Abstract
In this communication, we report a low-dimensional perovskite-related structure based on Cu(I) organometallic halide with strong green cluster-centred emission and near-unity photoluminescence quantum yield. The 0D [Rb(18-crown-6)]2Cu4I6 was sucessfully applied for X-ray imaging screens which exhibit high spatial resolution of 16.8 lp mm-1 and low detection limit of 458 nGy s-1.
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Affiliation(s)
- Alaa M Almushaikeh
- Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
| | - Hong Wang
- Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
- KAUST Catalysis Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Luis Gutiérrez-Arzaluz
- Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
| | - Jun Yin
- Department of Applied Physics, The Hong Kong Polytechnic University, Kowloon, 999077, Hong Kong, P. R. China
| | - Ren-Wu Huang
- KAUST Catalysis Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Osman M Bakr
- KAUST Catalysis Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
| | - Omar F Mohammed
- Advanced Membranes and Porous Materials Center, Division of Physical Science and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia.
- KAUST Catalysis Center, Division of Physical Sciences and Engineering, King Abdullah University of Science and Technology, Thuwal 23955-6900, Kingdom of Saudi Arabia
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8
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Perspectives on the Structural Design and Luminescent Behavior of Liquid Crystalline Materials Based on Copper(I) Complexes. CHEMISTRY 2023. [DOI: 10.3390/chemistry5010046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/17/2023] Open
Abstract
This paper provides insight into the various studies that have been carried out to date on liquid crystalline materials based on copper(I) complexes. Although the study of copper(I) complexes with respect to their liquid crystalline property is quite limited, metallomesogens prepared with different structural components and ligands from groups such as azamacrocycles, alkythiolates, ethers, isocyanides, phenanthroline, Schiff bases, pyrazolates, phosphines, biquinolines, and benzoylthioureas are reported and summarized in this review. A special section is dedicated to the discussion of emission properties of copper(I) metallomesogens.
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9
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Shao JJ, Chen WM, Mensah A, Liu PL, Ni JL, Chen LZ, Wang FM. Realizing near white and warm light emission of cuprous iodide complexes by alkyl-isomerization of ligands. Dalton Trans 2023; 52:3254-3259. [PMID: 36625273 DOI: 10.1039/d2dt02526d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
Four novel all-in-one structured cuprous iodide hybrid materials are presented. Isomerization of the alkyl chain on the ligand improved material thermal stability and regulated their luminescence to warm and near-white light emission, with the internal quantum yield increasing from 5% to 83%. This provides a reasonable route for designing white light emitting cuprous iodide materials for solid-state lighting in future.
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Affiliation(s)
- Juan-Juan Shao
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
| | - Wei-Min Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
| | - Abraham Mensah
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
| | - Peng-Lai Liu
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
| | - Jian-Ling Ni
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
| | - Li-Zhuang Chen
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
| | - Fang-Ming Wang
- School of Environmental and Chemical Engineering, Jiangsu University of Science and Technology, Zhenjiang, Jiangsu 212003, China.
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10
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Näther C, Jess I. Synthesis, crystal structure and thermal properties of di-μ-iodido-bis-[bis-(2-chloro-pyrazine-κ N)copper(I)]. Acta Crystallogr E Crystallogr Commun 2023; 79:167-171. [PMID: 36909988 PMCID: PMC9993928 DOI: 10.1107/s2056989023001238] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/10/2023] [Indexed: 02/19/2023]
Abstract
Reaction of copper(I) iodide in pure 2-chloro-pyrazine leads to the formation of a few crystals of the title compound, [Cu2I2(C4H3ClN2)4] or (CuI)2(2-chloro-pyrazine)4, which was characterized by single-crystal X-ray diffraction. In its crystal structure, the CuI cations are each tetra-hedrally coordinated by two iodide anions and two 2-chloro-pyrazine ligands and are linked into binuclear complexes consisting of (CuI)2 rings located on centers of inversion. PXRD investigations of a few crystals obtained from the suspension indicate that the title compound is contaminated with a small amount of the 2-chloro-pyrazine-deficient compound CuI(2-chloro-pyrazine) already reported in the literature. PXRD investigations prove that the title compound immediately decomposes at room temperature into CuI(2-chloro-pyrazine) and this might be the reason why no pure samples can be obtained. TDA-TG-MS investigations shows two mass losses, the first of which corresponds to the formation of CuI(2-chloro-pyrazine), whereas in the second mass loss CuI is formed.
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Affiliation(s)
- Christian Näther
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
| | - Inke Jess
- Institut für Anorganische Chemie, Universität Kiel, Max-Eyth.-Str. 2, 24118 Kiel, Germany
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11
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Hassanein K, Cappuccino C, Marchini M, Bandini E, Christian M, Morandi V, Monti F, Maini L, Ventura B. Novel Cu(I)-5-nitropyridine-2-thiol Cluster with NIR Emission: Structural and Photophysical Characterization. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2022; 126:10190-10198. [PMID: 35774291 PMCID: PMC9234981 DOI: 10.1021/acs.jpcc.2c01842] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/23/2022] [Indexed: 05/13/2023]
Abstract
A novel Cu(I) cluster compound has been synthesized by reacting CuI with the 2,2'-dithiobis(5-nitropyridine) ligand under solvothermal conditions. During the reaction, the original ligand breaks into the 5-nitropyridine-2-thiolate moiety, which acts as the coordinating ligand with both N- and S-sites, leading to a distorted octahedral Cu6S6 cluster. The structure has been determined by single-crystal X-ray diffraction and FT-IR analysis, and the photophysical properties have been determined in the solid state by means of steady-state and time-resolved optical techniques. The cluster presents a near-infrared emission showing an unusual temperature dependence: when passing from 77 to 298 K, a blue-shift of the emission band is observed, associated with a decrease in its intensity. Time-dependent-density functional theory calculations suggest that the observed behavior can be ascribed to a complex interplay of excited states, basically in the triplet manifold.
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Affiliation(s)
- Khaled Hassanein
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna 40129, Italy
| | - Chiara Cappuccino
- Dipartimento
di Chimica “G. Ciamician”, Università di Bologna, Via F. Selmi 2, Bologna 40126, Italy
| | - Marianna Marchini
- Dipartimento
di Chimica “G. Ciamician”, Università di Bologna, Via F. Selmi 2, Bologna 40126, Italy
| | - Elisa Bandini
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna 40129, Italy
| | - Meganne Christian
- Istituto
per la Microelettronica e Microsistemi (IMM) Sede di Bologna, Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna 40129, Italy
| | - Vittorio Morandi
- Istituto
per la Microelettronica e Microsistemi (IMM) Sede di Bologna, Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna 40129, Italy
| | - Filippo Monti
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna 40129, Italy
| | - Lucia Maini
- Dipartimento
di Chimica “G. Ciamician”, Università di Bologna, Via F. Selmi 2, Bologna 40126, Italy
| | - Barbara Ventura
- Istituto
per la Sintesi Organica e la Fotoreattività (ISOF), Consiglio Nazionale delle Ricerche (CNR), Via P. Gobetti 101, Bologna 40129, Italy
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