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Sarmiento JT, Portilla J. Current Advances in Diazoles-based Chemosensors for CN- and FDetection. Curr Org Synth 2023; 20:77-95. [PMID: 35184705 DOI: 10.2174/1570179419666220218095741] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2021] [Revised: 12/19/2021] [Accepted: 01/10/2022] [Indexed: 12/16/2022]
Abstract
Advances in molecular probes have recently intensified because they are valuable tools in studying species of interest for human health, the environment, and industry. Among these species, cyanide (CN-) and fluoride (F-) stand out as hazardous and toxic ions in trace amounts. Thus, there is a significant interest in probes design for their detection with diverse diazoles (pyrazole and imidazole) used for this purpose. These diazole derivatives are known as functional molecules because of their known synthetic versatility and applicability, as they exhibit essential photophysical properties with helpful recognition centers. This review provides an overview of the recent progress (2017-2021) in diazole-based sensors for CN- and F- detection, using the azolic ring as a signaling or recognition unit. The discussion focuses on the mechanism of the action described for recognizing the anion, the structure of the probes with the best synthetic simplicity, detection limits (LODs), application, and selectivity. In this context, the analysis involves probes for cyanide sensing first, then probes for fluoride sensing, and ultimately, dual probes that allow both species recognition.
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Affiliation(s)
- Jeymy T Sarmiento
- Department of Chemistry, Faculty of Sciences, Universidad de los Andes, Bogota, D.C, Colombia
| | - Jaime Portilla
- Department of Chemistry, Faculty of Sciences, Universidad de los Andes, Bogota, D.C, Colombia
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2
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C H‧‧‧X (X = F, Cl) and Cl‧‧‧Cl halogen-mediated interactions driving the crystal packing in N-substituted 4-arylimidazoles. J Mol Struct 2023. [DOI: 10.1016/j.molstruc.2022.134181] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Sreenatha N, Ganesha D, Chakravarthy AJ, Suchithra B, Lakshminarayana B. X-ray structure, hirshfeld surfaces and interaction energy studies of 2,2-diphenyl-1-oxa-3-oxonia-2-boratanaphthalene. Heliyon 2022; 8:e10151. [PMID: 36033265 PMCID: PMC9404282 DOI: 10.1016/j.heliyon.2022.e10151] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 04/12/2022] [Accepted: 07/27/2022] [Indexed: 01/29/2023] Open
Abstract
Single crystal XRD structure of the title compound reveals that the molecule adopt non-planar structure. The molecule is puckered with the total puckering amplitude of (Q) = 0.368(3)Å. Crystals of the title molecules are interconnected by intermolecular O-H⋯O and C-H⋯O interactions to develop 1D chains extending infinitely along the crystallographic a-axis. The intermolecular interactions were explored by Hirshfeld surfaces and their associated fingerprint graphs are obtained which revealed that the H⋯H and H⋯C pairs of inter atomic contacts were pre-dominant in the crystal packing of title compound. The energy of intermolecular interactions are computed using the accurate energy density model of B3LYP/6-31 G(d,p).
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Affiliation(s)
- N.R. Sreenatha
- Department of Engineering Physics, Adichunchanagiri Institute of Technology, Chikkamagaluru, 577 102, Karnataka, India
- Department of Physics, Government Engineering College, Hassan, 573 201, Karnataka, India
| | - D.P. Ganesha
- Department of Engineering Physics, Adichunchanagiri Institute of Technology, Chikkamagaluru, 577 102, Karnataka, India
| | | | - B. Suchithra
- Department of Biochemistry, Maharani Science College for Women, Bengaluru, 560 001, Karnataka, India
| | - B.N. Lakshminarayana
- Department of Engineering Physics, Adichunchanagiri Institute of Technology, Chikkamagaluru, 577 102, Karnataka, India
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Elejalde-Cadena NR, García-Olave M, Figueroa D, Vidossich P, Miscione GP, Portilla J. Influence of Steric Effect on the Pseudo-Multicomponent Synthesis of N-Aroylmethyl-4-Arylimidazoles. Molecules 2022; 27:1165. [PMID: 35208948 PMCID: PMC8874432 DOI: 10.3390/molecules27041165] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2021] [Revised: 01/24/2022] [Accepted: 02/03/2022] [Indexed: 11/16/2022] Open
Abstract
A pseudo-three-component synthesis of N-aroylmethylimidazoles 3 with three new C-N bonds formed regioselectively under microwave conditions was developed. Products were obtained by reacting two equivalents of aroylmethyl bromide (ArCOCH2Br, 1) with the appropriate amidine salt (RCN2H3.HX, 2) and with K2CO3 as a base in acetonitrile. The bicomponent reaction also occurred, giving the expected 4(5)-aryl-1H-imidazoles 4. Notably, the ratio of products 3 and 4 is governed by steric factors of the amidine 2 (i.e., R = H, CH3, Ph). Therefore, a computational study was carried out to understand the reaction course regarding product ratio (3/4), regioselectivity, and the steric effects of the amidine substituent group.
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Affiliation(s)
- Nerith Rocio Elejalde-Cadena
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18A-10, Bogotá 111711, Colombia; (N.R.E.-C.); (M.G.-O.)
| | - Mayra García-Olave
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18A-10, Bogotá 111711, Colombia; (N.R.E.-C.); (M.G.-O.)
| | - David Figueroa
- COBO-Computational Bio-Organic Chemistry Bogotá, Department of Chemistry, Universidad de los Andes, Cra 1 No. 18A-12, Bogotá 111711, Colombia; (D.F.); (G.P.M.)
| | - Pietro Vidossich
- Laboratory of Molecular Modeling and Drug Discovery, Istituto Italiano di Tecnologia, Via Morego 30, 16163 Genova, Italy;
| | - Gian Pietro Miscione
- COBO-Computational Bio-Organic Chemistry Bogotá, Department of Chemistry, Universidad de los Andes, Cra 1 No. 18A-12, Bogotá 111711, Colombia; (D.F.); (G.P.M.)
| | - Jaime Portilla
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes, Carrera 1 No. 18A-10, Bogotá 111711, Colombia; (N.R.E.-C.); (M.G.-O.)
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Ríos MC, Bravo NF, Sánchez CC, Portilla J. Chemosensors based on N-heterocyclic dyes: advances in sensing highly toxic ions such as CN - and Hg 2. RSC Adv 2021; 11:34206-34234. [PMID: 35497277 PMCID: PMC9042589 DOI: 10.1039/d1ra06567j] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2021] [Accepted: 10/02/2021] [Indexed: 12/19/2022] Open
Abstract
CN- and Hg2+ ions are harmful to both the environment and human health, even at trace levels. Thus, alternative methods for their detection and quantification are highly desirable given that the traditional monitoring systems are expensive and require qualified personnel. Optical chemosensors (probes) have revolutionized the sensing of different species due to their high specificity and sensitivity, corresponding with their modular design. They have also been used in aqueous media and different pH ranges, facilitating their applications in various samples. The design of molecular probes is based on organic dyes, where the key species are N-heterocyclic compounds (NHCs) due to their proven photophysical properties, biocompatibility, and synthetic versatility, which favor diverse applications. Accordingly, this review aims to provide an overview of the reports from 2016 to 2021, in which fluorescent probes based on five- and six-membered N-heterocycles are used for the detection of CN- and Hg2+ ions.
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Affiliation(s)
- María-Camila Ríos
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Néstor-Fabián Bravo
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Christian-Camilo Sánchez
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Jaime Portilla
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
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Vargas-Oviedo D, Portilla J, Macías MA. Influence of the haloaryl moiety over the molecular packing in N-phenacylbenzimidazoles crystallizing in the same space group. J Mol Struct 2021. [DOI: 10.1016/j.molstruc.2020.129869] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sabbaghi F, As'habi A, Saneei A, Pourayoubi M, Abdul Salam AA, Nečas M, Dušek M, Kučeráková M, Acharya S. Conformational analysis of two new organotin(IV) structures completed with a CSD survey. ACTA CRYSTALLOGRAPHICA SECTION C-STRUCTURAL CHEMISTRY 2021; 77:68-80. [PMID: 33536369 DOI: 10.1107/s2053229620016502] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2020] [Accepted: 12/21/2020] [Indexed: 11/11/2022]
Abstract
The conformational flexibilities are studied in two new organotin(IV) complexes, namely, trans-dichloridodimethylbis[N,N',N''-tris(2-chlorobenzyl)phosphoric triamide]tin(IV), [Sn(CH3)2(C21H21Cl3N3OP)2Cl2] or Sn(CH3)2Cl2{OP[NHCH2C6H4(2-Cl)]3}2, (I), and bis(dipropylammonium) tetrachloridodimethylstannate(IV), [(CH3CH2CH2)2NH2]2[Sn(CH3)2Cl4], (II), and their analogous structures from the Cambridge Structural Database (CSD). The conformations are considered based on the N-P=O-Sn torsion angles for (I) and the C-C-C-N, C-C-N-C, C-N-C-C and N-C-C-C torsion angles for the two symmetry-independent [CH3CH2CH2NH2CH2CH2CH3]+ cations in (II), and the ±ac±sp±ac (ac = anticlinal and sp = synperiplanar) and ±ap±ap±ap±ap (ap = antiperiplanar) conformations are observed, respectively. In both structures, the four atoms in the corners of the square-planar segment of the octahedral shape around the Sn atom participate in normal hydrogen-bonding interactions as acceptors, which include two O and two Cl atoms for (I), and four Cl atoms for (II). However, the phosphoric triamide ligands block the environment around the Sn atom and limit the hydrogen-bond pattern to form a supramolecular ribbon assembly, while in the presence of small organic cations in (II), a two-dimensional hydrogen-bonded architecture is achieved. The weak interactions π-π, C-H...π and C-Cl...π in (I), and C-H...Cl in (II) do not change the dimensionality of the hydrogen-bond pattern. The 62 CSD structures analogous to (I), i.e. with an SnOPN3 segment (including 83 entries) fall into four categories of conformations based on the N-P=O-Sn torsion angles. The 132 [(CH3CH2CH2)2NH2]+ cations from 85 CSD structures are classified into seven groups based on the torsion angles noted for (II). Most of the CSD structures adopt the same associated conformations noted for (I) and (II). 15 [Sn(CH3)2Cl4]2- anions extracted from the CSD are compared with the structure of (II).
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Affiliation(s)
- Fahimeh Sabbaghi
- Department of Chemistry, Zanjan Branch, Islamic Azad University, Zanjan, Iran
| | - Azam As'habi
- Department of Chemistry, Payame Noor University, Zanjan, Iran
| | - Anahid Saneei
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Mehrdad Pourayoubi
- Department of Chemistry, Faculty of Science, Ferdowsi University of Mashhad, Mashhad, Iran
| | - Abdul Ajees Abdul Salam
- Department of Atomic and Molecular Physics, Centre for Applied Nanosciences, Manipal Academy of Higher Education, Manipal, Karnataka 576 104, India
| | - Marek Nečas
- Department of Chemistry, Masaryk University, Kotlarska 2, 61137 Brno, Czech Republic
| | - Michal Dušek
- Institute of Physics ASCR, v.v.i., Na Slovance 2, 182 21 Praha 8, Czech Republic
| | - Monika Kučeráková
- Institute of Physics ASCR, v.v.i., Na Slovance 2, 182 21 Praha 8, Czech Republic
| | - Sudarshan Acharya
- Department of Atomic and Molecular Physics, Centre for Applied Nanosciences, Manipal Academy of Higher Education, Manipal, Karnataka 576 104, India
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Tigreros A, Aranzazu SL, Bravo NF, Zapata-Rivera J, Portilla J. Pyrazolo[1,5- a]pyrimidines-based fluorophores: a comprehensive theoretical-experimental study. RSC Adv 2020; 10:39542-39552. [PMID: 35515403 PMCID: PMC9057447 DOI: 10.1039/d0ra07716j] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Accepted: 10/16/2020] [Indexed: 12/12/2022] Open
Abstract
Fluorescent molecules are crucial tools for studying the dynamics of intracellular processes, chemosensors, and the progress of organic materials. In this study, a family of pyrazolo[1,5-a]pyrimidines (PPs) 4a-g has been identified as strategic compounds for optical applications due to several key characteristics such as their simpler and greener synthetic methodology (RME: 40-53%) as compared to those of BODIPYS (RME: 1.31-17.9%), and their tunable photophysical properties (going from ε = 3320 M-1 cm-1 and ϕ F = 0.01 to ε = 20 593 M-1 cm-1 and ϕ F = 0.97), in which electron-donating groups (EDGs) at position 7 on the fused ring improve both the absorption and emission behaviors. The PPs bearing simple aryl groups such as 4a (4-Py), 4b (2,4-Cl2Ph), 4d (Ph) and 4e (4-MeOPh), allow good solid-state emission intensities (QYSS = 0.18 to 0.63) in these compounds and thus, solid-state emitters can be designed by proper structural selection. The properties and stability found in 4a-g are comparable to commercial probes such as coumarin-153, prodan and rhodamine 6G. Ultimately, the electronic structure analysis based on DFT and TD-DFT calculations revealed that EDGs at position 7 on the fused ring favor large absorption/emission intensities as a result of the ICT to/from this ring; however, these intensities remain low with electron-withdrawing groups (EWGs), which is in line with the experimental data and allows us to understand the optical properties of this fluorophore family.
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Affiliation(s)
- Alexis Tigreros
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Sandra-L Aranzazu
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Nestor-F Bravo
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Jhon Zapata-Rivera
- Molecular Electronic Structure Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
| | - Jaime Portilla
- Bioorganic Compounds Research Group, Department of Chemistry, Universidad de los Andes Carrera 1 No. 18A-10 Bogotá 111711 Colombia
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