2-Nitro- and 4-fluorocinnamaldehyde based receptors as naked-eye chemosensors to potential molecular keypad lock

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Islam, Muhammad ^[1] ; Shafiq, Zahid ^[1] ; Mabood, Fazal ^{[2, 3]} ; Shah, Hakikulla H. ^[2] ; Singh, Vandita ^[4] ; Khalid, Muhammad ^[5] ; de Alcantara Morais, Sara Figueiredo ^[6] ; Carmo Braga, Ataualpa Albert ^[6] ; Khan, Muhammad Usman ^[7] ; Hussain, Javid ^[2] ; Al-Harrasi, Ahmed ^[2] ; Marraiki, Najat ^[8] ; Zaghloul, Nouf S. S. ^[9]

Afiliação do(s) autor(es)

^[1] Bahauddin Zakariya Univ, Inst Chem Sci, Multan 60800 - Pakistan

^[2] Univ Nizwa, Nat & Med Sci Res Ctr, POB 33, Nizwa 616 - Oman

^[3] Univ Swat, Inst Chem Sci, Swat - Pakistan

^[4] ASharqiyah Univ, Coll Appl & Hlth Sci, Dept Food Sci & Human Nutr, POB 42, Ibra - Oman

^[5] Khwaja Fareed Univ Engn & Informat Technol, Dept Chem, Rahim Yar Khan 64200 - Pakistan

^[6] Univ Sao Paulo, Inst Quim, Dept Quim Fundamental, Ave Prof LineuPrestes 748, BR-05508000 Sao Paulo - Brazil

^[7] Univ Okara, Dept Chem, Okara 56300 - Pakistan

^[8] King Saud Univ, Coll Sci, Dept Bot & Microbiol, PO 2455, Riyadh 11451 - Saudi Arabia

^[9] Univ Bristol, Bristol Ctr Funct Nanomat, HH Wills Phys Lab, Tyndall Ave, Bristol BS8 1FD, Avon - England

• Tipo de documento: Artigo Científico
• Fonte: SCIENTIFIC REPORTS; v. 11, n. 1 OCT 21 2021.
• Citações Web of Science: 0

Resumo

New-generation chemosensors desire small organic molecules that are easy to synthesise and cost-effective. As a new interdisciplinary area of research, the integration of these chemosensors into keypad locks or other advanced communication protocols is becoming increasingly popular. Our lab has developed new chemosensor probes that contain 2-nitro- (1-3) and 4-fluoro-cinnamaldehyde (4-6) and applied them to the anion recognition and sensing process. Probes 1-6 are colorimetric sensors for naked-eye detection of AcO-/CN-/F-, while probes 4-6 could differentiate between F- and AcO-/CN- anions in acetonitrile. Using the density functional theory (DFT), it was found that probes 1-6 acted as effective chemosensors. By using Probe 5 as a chemosensor, we explored colorimetric recognition of multiple anions in more detail. Probe 5 was tested in combination with a combinatorial approach to demonstrate pattern-generation capability and its ability to distinguish among chemical inputs based on concentration. After pattern discrimination using principal component analysis (PCA), we examined anion selectivity using DFT computation. In our study, probe 5 demonstrates excellent performance as a chemosensor and shows promise as a future molecular-level keypad lock system. (AU)

• Processo FAPESP: 11/07895-8 - Estudo teórico das reações de Heck-Matsuda
• Beneficiário: Ataualpa Albert Carmo Braga
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 15/01491-3 - Estudo teórico das reações de acoplamento-cruzado: catálise homogênea e heterogênea
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• Processo FAPESP: 14/25770-6 - Novas fronteiras em reações de acoplamento cruzado mediadas por paládio: associando catálise enantiosseletiva, ativações C-H, novos materiais e reações em fluxo visando alta eficiência e sustentabilidade em processos sintéticos
• Beneficiário: Carlos Roque Duarte Correia
• Modalidade de apoio: Auxílio à Pesquisa - Temático