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Douglas SP, Faria EN, Mrig S, Zhou Y, Santoni L, Clancy AJ, Knapp CE. Tris(β-ketoiminate) Aluminium(III) Compounds as Aluminium Oxide Precursors. Chempluschem 2023; 88:e202200411. [PMID: 36646521 DOI: 10.1002/cplu.202200411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2022] [Revised: 12/22/2022] [Indexed: 12/24/2022]
Abstract
Precursor design is the crucial step in tailoring the deposition profile towards a multitude of functional materials. Most commercially available aluminium oxide precursors require high processing temperatures (>500 °C). Herein, we report the tuning of the decomposition profile (200-350 °C) of a range of octahedrally coordinated tris(β-ketoiminate) aluminium complexes of the type [Al(MeCN(R)CHC=OMe)3 ], by varying the R substituents in the ligands. The complexes are derived from the reaction of trimethylamine alane (TMAA) and a series of N-substituted β-ketoiminate ligands (R-acnacH, R=Me, Et, i Pr, Ph) with varying R-substituents sizes. When the more sterically encumbered ligand (R=Mes) was used, the Al atom became five-coordinate, therefore representing the threshold to octahedral coordination around the metal in these type of compounds, which, consequently, lead to a change of decomposition profile. The resulting compounds have been characterised by NMR spectroscopy, mass spectrometry, elemental analysis and single crystal X-ray diffraction. [Al(MeCN(Me)CHC=OMe)3 ] has been used as a single source precursor for the deposition of Al2 O3 . Thin films were deposited via aerosol assisted chemical vapour deposition (AACVD), with toluene as the solvent, and were analysed using SEM, EDX and XPS.
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Affiliation(s)
- Samuel P Douglas
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Erica N Faria
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Shreya Mrig
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Ye Zhou
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Leonardo Santoni
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Adam J Clancy
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
| | - Caroline E Knapp
- Department of Chemistry, University College London, 20 Gordon Street, WC1H 0AJ, London, UK
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Sakthivel A, Jeyasubramanian K, Thangagiri B, Raja JD. Recent advances in schiff base metal complexes derived from 4-aminoantipyrine derivatives and their potential applications. J Mol Struct 2020. [DOI: 10.1016/j.molstruc.2020.128885] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Kocherga M, Castaneda J, Walter MG, Zhang Y, Saleh NA, Wang L, Jones DS, Merkert J, Donovan-Merkert B, Li Y, Hofmann T, Schmedake TA. Si(bzimpy)2 – a hexacoordinate silicon pincer complex for electron transport and electroluminescence. Chem Commun (Camb) 2018; 54:14073-14076. [DOI: 10.1039/c8cc07681b] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We demonstrate the feasibility of hexacoordinate silicon complexes with dianionic pincer ligands as electron transport and electroluminescent components of organic electronic devices.
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Affiliation(s)
- Margaret Kocherga
- University of North Carolina – Charlotte, Department of Chemistry
- Charlotte
- USA
| | - Jose Castaneda
- University of North Carolina – Charlotte, Department of Electrical and Computer Engineering
- Charlotte
- USA
| | - Michael G. Walter
- University of North Carolina – Charlotte, Department of Chemistry
- Charlotte
- USA
| | - Yong Zhang
- University of North Carolina – Charlotte, Department of Electrical and Computer Engineering
- Charlotte
- USA
| | - Nemah-Allah Saleh
- University of North Carolina – Charlotte, Department of Chemistry
- Charlotte
- USA
| | - Le Wang
- University of North Carolina – Charlotte, Department of Chemistry
- Charlotte
- USA
| | - Daniel S. Jones
- University of North Carolina – Charlotte, Department of Chemistry
- Charlotte
- USA
| | - Jon Merkert
- University of North Carolina – Charlotte, Department of Chemistry
- Charlotte
- USA
| | | | - Yanzeng Li
- University of North Carolina – Charlotte, Department of Physics and Optical Science
- Charlotte
- USA
| | - Tino Hofmann
- University of North Carolina – Charlotte, Department of Physics and Optical Science
- Charlotte
- USA
| | - Thomas A. Schmedake
- University of North Carolina – Charlotte, Department of Chemistry
- Charlotte
- USA
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4
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Polymer complexes. LXVII: electrical conductivity and thermal properties of polymer complexes of quinoline azo dye. CHEMICAL PAPERS 2017. [DOI: 10.1007/s11696-017-0236-2] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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OMAR WALAAAE, HORMI OSMOEO. Synthesis of Novel 5-(N-Substituted-Anilino)-8-Hydroxyquinolines via Hartwig-Buchwald Amination Reaction. J CHEM SCI 2015. [DOI: 10.1007/s12039-015-0960-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Kumar R, Bhargava P, Srivastava R, Singh P. Synthesis and electroluminescence properties of a new aluminium complex [5-choloro-8-hydroxyquinoline] bis [2,2'bipyridine] Aluminium Al(Bpy)2(5-Clq). J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2015.08.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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7
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El-Ghamaz NA, Diab MA, El-Bindary AA, El-Sonbati AZ, Nozha SG. Thermal, dielectric characteristics and conduction mechanism of azodyes derived from quinoline and their copper complexes. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2015; 143:200-212. [PMID: 25727297 DOI: 10.1016/j.saa.2015.01.065] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/24/2014] [Revised: 11/04/2014] [Accepted: 01/25/2015] [Indexed: 06/04/2023]
Abstract
A novel series of (5-(4'-derivatives phenyl azo)-8-hydroxy-7-quinolinecarboxaldehyde) (AQLn) (n=1, p-OCH3; n=2, R=H; and n=3; p-NO2) and their complexes [Cu(AQLn)2]·5H2O are synthesized and investigated. The optimized bond lengths, bond angles and the calculated quantum chemical parameters for AQLn are investigated. HOMO-LUMO energy gap, absolute electronegativities, chemical potentials, and absolute hardness are also calculated. The thermal properties, dielectric properties, alternating current conductivity (σac) and conduction mechanism are investigated in the frequency range 0.1-100kHz and temperature range 293-568K for AQL1-3 and 318-693K for [Cu(AQL1-3)2]·5H2O complexes. The thermal properties are of ligands (AQLn) and their Cu(II) complexes investigated by thermogravimetric analysis (TGA). The temperature and frequency dependence of the real and the imaginary part of the dielectric constant are studied. The values of the thermal activation energy of conduction mechanism for AQLn and their complexes [Cu(AQLn)2]·5H2O under investigation are calculated at different test frequencies. The values of thermal activation energies ΔE1 and ΔE2 for AQLn and [Cu(AQLn)2]·5H2O decrease with increasing the values of frequency. The ac conductivity is found to be depending on the chemical structure of the compounds. Different conduction mechanisms have been proposed to explain the obtained experimental data. The small polaron tunneling (SPT) is the dominant conduction mechanism for AQL1 and its complex [Cu(AQL1)2]·5H2O. The quantum mechanical tunneling (QMT) is the dominant conduction mechanism for AQL2 and its complex [Cu(AQL2)2]·5H2O. The correlated barrier hopping (CBH) is the dominant conduction mechanism for AQL3 and its complex [Cu(AQL3)2]·5H2O, and the values of the maximum barrier height (Wm) are calculated.
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Affiliation(s)
- N A El-Ghamaz
- Physics Department, Faculty of Science, Damietta University, Egypt
| | - M A Diab
- Chemistry Department, Faculty of Science, Damietta University, Egypt
| | - A A El-Bindary
- Chemistry Department, Faculty of Science, Damietta University, Egypt
| | - A Z El-Sonbati
- Chemistry Department, Faculty of Science, Damietta University, Egypt.
| | - S G Nozha
- Chemistry Department, Faculty of Science, Damietta University, Egypt
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Modiri S, Mohseni M, Mohajerani E, Kowsari E. Synthesis of an Organic–Inorganic Alq3-Based Hybrid Material by Sol–Gel Method. J Inorg Organomet Polym Mater 2014. [DOI: 10.1007/s10904-014-0142-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Kumar A, Srivastava R, Kumar A, Nishal V, Kadyan PS, Kamalasanan M, Singh I. Ternary zinc complexes as electron transport and electroluminescent materials. J Organomet Chem 2013. [DOI: 10.1016/j.jorganchem.2013.04.032] [Citation(s) in RCA: 9] [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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Wang J, Zhang G, Liu Z, Gu X, Yan Y, Zhang C, Xu Z, Zhao Y, Fu H, Zhang D. New emissive organic molecule based on pyrido[3,4-g]isoquinoline framework: synthesis and fluorescence tuning as well as optical waveguide behavior. Tetrahedron 2013. [DOI: 10.1016/j.tet.2013.02.041] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Omar WAE. Synthesis and photophysical properties of aluminium tris-(4-morpholine-8-hydroxyquinoline). J Adv Res 2012; 4:525-9. [PMID: 25685461 PMCID: PMC4294783 DOI: 10.1016/j.jare.2012.09.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2012] [Revised: 09/12/2012] [Accepted: 09/20/2012] [Indexed: 11/26/2022] Open
Abstract
Aluminium tris(4-morpholinyl-8-hydroxyquinoline) has been synthesized and characterized. The photoluminescence measurements showed that the new derivative is blue shifted and has relative photoluminescence quantum yield two times higher compared to the pristine Al tris(8-hydroxyquinoline). Deferential scanning colorimetric studies revealed that the newly synthesized Alq3 derivative in this work is amorphous material with the highest transition glass temperature value among the reported amorphous Alq3 derivatives.
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Affiliation(s)
- Walaa A E Omar
- Department of Science and Mathematics, Faculty of Petroleum and Mining Engineering, Suez Canal University, Suez 43721, Egypt
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Manninen VM, Omar WAE, Heiskanen JP, Lemmetyinen HJ, Hormi OEO. Synthesis and characterization of tris-(5-amino-8-hydroxyquinoline)aluminum complexes and their use as anode buffer layers in inverted organic solar cells. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm35292c] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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13
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Structure and electronic properties of Alq3 derivatives with electron acceptor/donor groups at the C4 positions of the quinolate ligands: a theoretical study. J Mol Model 2011; 17:3039-46. [DOI: 10.1007/s00894-011-1014-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2010] [Accepted: 02/08/2011] [Indexed: 10/18/2022]
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Heiskanen JP, Tolkki AE, Lemmetyinen HJ, Hormi OEO. Fused Alq3 derivatives: syntheses and photophysical characteristics. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm12424b] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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