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Crystal structure of E-2-chloro- N′-(1-(5-chloro-2-hydroxyphenyl)propylidene)benzohydrazide, C 16H 14Cl 2N 2O 2. Z KRIST-NEW CRYST ST 2022. [DOI: 10.1515/ncrs-2022-0413] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C16H14Cl2N2O2, triclinic,
P
1
‾
$P\overline{1}$
(no. 2), a = 8.9215(15) Å, b = 10.0013(15) Å, c = 10.5713(15) Å, α = 62.517(2)°, β = 75.325(2)°, γ = 68.9930(10)°, V = 776.8(2) Å3, Z = 2, Rgt
(F) = 0.0417, wRref
(F
2) = 0.1414, T = 296(2) K.
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2
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Farley GW, Siegler MA, Goldberg DP. Halogen Transfer to Carbon Radicals by High-Valent Iron Chloride and Iron Fluoride Corroles. Inorg Chem 2021; 60:17288-17302. [PMID: 34709780 DOI: 10.1021/acs.inorgchem.1c02666] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
High-valent iron halide corroles were examined to determine their reactivity with carbon radicals and their ability to undergo radical rebound-like processes. Beginning with Fe(Cl)(ttppc) (1) (ttppc = 5,10,15-tris(2,4,6-triphenylphenyl)corrolato3-), the new iron corroles Fe(OTf)(ttppc) (2), Fe(OTf)(ttppc)(AgOTf) (3), and Fe(F)(ttppc) (4) were synthesized. Complexes 3 and 4 are the first iron triflate and iron fluoride corroles to be structurally characterized by single crystal X-ray diffraction. The structure of 3 reveals an AgI-pyrrole (η2-π) interaction. The Fe(Cl)(ttppc) and Fe(F)(ttppc) complexes undergo halogen transfer to triarylmethyl radicals, and kinetic analysis of the reaction between (p-OMe-C6H4)3C• and 1 gave k = 1.34(3) × 103 M-1 s-1 at 23 °C and 2.2(2) M-1 s-1 at -60 °C, ΔH⧧ = +9.8(3) kcal mol-1, and ΔS⧧ = -14(1) cal mol-1 K-1 through an Eyring analysis. Complex 4 is significantly more reactive, giving k = 1.16(6) × 105 M-1 s-1 at 23 °C. The data point to a concerted mechanism and show the trend X = F- > Cl- > OH- for Fe(X)(ttppc). This study provides mechanistic insights into halogen rebound for an iron porphyrinoid complex.
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Affiliation(s)
- Geoffrey W Farley
- Department of Chemistry, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - Maxime A Siegler
- Department of Chemistry, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
| | - David P Goldberg
- Department of Chemistry, The Johns Hopkins University, 3400 North Charles Street, Baltimore, Maryland 21218, United States
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3
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Tarai A, Huang M, Das P, Pan W, Zhang J, Gu Z, Yan W, Qu J, Yang Z. ICT and AIE Characteristics Two Cyano-Functionalized Probes and Their Photophysical Properties, DFT Calculations, Cytotoxicity, and Cell Imaging Applications. Molecules 2020; 25:E585. [PMID: 32013190 PMCID: PMC7037400 DOI: 10.3390/molecules25030585] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2019] [Revised: 01/20/2020] [Accepted: 01/24/2020] [Indexed: 11/16/2022] Open
Abstract
Two probes, AIE-1 and AIE-2, were synthesized to investigate the effect of substitutional functional group on aggregation (aggregation-caused quenching (ACQ) or aggregation-induced emission (AIE)) and intramolecular charge transfer (ICT) behavior as well as on the cell imaging aspect. The yellow-color non-substituted probe AIE-1 showed weak charge-transfer absorption and an emission band at 377 nm and 432 nm, whereas the yellowish-orange color substituted probe AIE-2 showed a strong charge-transfer absorption and an emission band at 424 nm and 477 nm in THF solvent. The UV-Vis studies of AIE-1 and AIE-2 in THF and THF with different water fractions showed huge absorption changes in AIE-2 with high water fractions due to its strong aggregation behavior, but no such noticeable absorption changes were observed for AIE-1. Interestingly, the fluorescence intensity of AIE-1 at 432 nm gradually decreased with increasing water fractions and became almost non-emissive at 90% water. However, the monomer-type emission of AIE-2 at 477 nm was shifted to 584 nm with a 6-fold increase in fluorescence intensity in THF-H2O (1:9, v/v) solvent mixtures due to the restriction of intramolecular rotation on aggregation in high water fractions. This result indicates that the probe AIE-1 shows ACQ and probe AIE-2 shows AIE behaviors in THF-H2O solvent mixtures. Furthermore, the emission spectra of AIE-1 and AIE-2 were carried out in different solvent and with different concentrations to see the solvent- or concentration-dependent aggregation behavior. Scanning electron microscope (SEM) and dynamic light scattering (DLS) experiments were also conducted to assess the morphology and particle size of two probes before and after aggregation. Both of the probes, AIE-1 and AIE-2, showed less toxicity on HeLa cells and were suitable for cell imaging studies. Density functional theory (DFT) calculation was also carried out to confirm the ICT process from an electron-rich indole moiety to an electron-deficient cyano-phenyl ring of AIE-1 or AIE-2.
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Affiliation(s)
| | | | | | | | | | | | | | - Junle Qu
- Center for Biomedical Photonics, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (A.T.); (M.H.); (P.D.); (W.P.); (J.Z.); (Z.G.); (W.Y.)
| | - Zhigang Yang
- Center for Biomedical Photonics, Key Laboratory of Optoelectronic Devices and Systems of Ministry of Education and Guangdong Province, College of Physics and Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China; (A.T.); (M.H.); (P.D.); (W.P.); (J.Z.); (Z.G.); (W.Y.)
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4
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Sojka M, Tousek J, Badri Z, Foroutan-Nejad C, Necas M. Bifurcated hydrogen bonds in platinum(II) complexes with phosphinoamine ligands. Polyhedron 2019. [DOI: 10.1016/j.poly.2019.06.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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5
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Nuzzo S, Twamley B, Platts JA, Baker RJ. Pseudohalide Tectons within the Coordination Sphere of the Uranyl Ion: Experimental and Theoretical Study of C-H···O, C-H···S, and Chalcogenide Noncovalent Interactions. Inorg Chem 2018. [PMID: 29542918 DOI: 10.1021/acs.inorgchem.7b02967] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
A series of uranyl thiocyanate and selenocyanate of the type [R4N]3[UO2(NCS)5] (R4 = nBu4, Me3Bz, Et3Bz), [Ph4P][UO2(NCS)3(NO3)] and [R4N]3[UO2(NCSe)5] (R4 = Me4, nPr4, Et3Bz) have been prepared and structurally characterized. The resulting noncovalent interactions have been examined and compared to other examples in the literature. The nature of these interactions is determined by the cation so that when the alkyl groups are small, chalcogenide···chalcogenide interactions are present, but this "switches off" when R = nPr and charge assisted U═O···H-C and S(e)···H-C hydrogen bonding remain the dominant interaction. Increasing the size of the chain to nBu results in only S···H-C interactions. The spectroscopic implications of these chalcogenide interactions have been explored in the vibrational and photophysical properties of the series [R4N]3[UO2(NCS)5] (R4 = Me4, Et4, nPr4, nBu4, Me3Bz, Et3Bz), [R4N]3[UO2(NCSe)5] (R4 = Me4, nPr4, Et3Bz) and [Et4N]4[UO2(NCSe)5][NCSe]. The data suggest that U═O···H-C interactions are weak and do not perturb the uranyl moiety. While the chalcogenide interactions do not influence the photophysical properties, a coupling of the U═O and δ(NCS) or δ(NCSe) vibrational modes is observed in the 77 K solid state emission spectra. A theoretical examination of representative examples of Se···Se, C-H···Se, and C-H···O═U by molecular electrostatic potentials and NBO and AIM methodologies gives a deeper understanding of these weak interactions. C-H···Se are individually weak but C-H···O═U interactions are even weaker, supporting the idea that the -yl oxo's are weak Lewis bases. An Atoms in Molecules study suggests that the chalcogenide interaction is similar to lone pair···π or fluorine···fluorine interactions. An oxidation of the NCS ligands to form [(UO2)(SO4)2(H2O)4]·3H2O was also noted.
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Affiliation(s)
- Stefano Nuzzo
- School of Chemistry , University of Dublin, Trinity College , Dublin 2 , Ireland
| | - Brendan Twamley
- School of Chemistry , University of Dublin, Trinity College , Dublin 2 , Ireland
| | - James A Platts
- School of Chemistry, Main Building , Cardiff University , Park Place , Cardiff CF10 3AT , U.K
| | - Robert J Baker
- School of Chemistry , University of Dublin, Trinity College , Dublin 2 , Ireland
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6
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Supramolecular features of 2-(chlorophenyl)-3-[(chlorobenzylidene)-amino]-2,3-dihydroquinazolin-4(1 H )-ones: A combined experimental and computational study. J Mol Struct 2018. [DOI: 10.1016/j.molstruc.2017.10.085] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Mahmoudi G, Zaręba JK, Bauzá A, Kubicki M, Bartyzel A, Keramidas AD, Butusov L, Mirosław B, Frontera A. Recurrent supramolecular motifs in discrete complexes and coordination polymers based on mercury halides: prevalence of chelate ring stacking and substituent effects. CrystEngComm 2018. [DOI: 10.1039/c7ce02166f] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We report the synthesis, X-ray characterization and DFT study of five Hg(ii) complexes with Schiff bases containing a nicotinohydrazide core to explore the formation of chelate-ring π-stacking interactions.
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Affiliation(s)
- Ghodrat Mahmoudi
- Department of Chemistry
- Faculty of Science
- University of Maragheh
- Maragheh
- Iran
| | - Jan K. Zaręba
- Advanced Materials Engineering and Modelling Group
- Wroclaw University of Science and Technology
- Wrocław
- Poland
| | - Antonio Bauzá
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares)
- Spain
| | - Maciej Kubicki
- Faculty of Chemistry
- Adam Mickiewicz University in Poznan
- 61-614 Poznań
- Poland
| | - Agata Bartyzel
- Department of General and Coordination Chemistry
- Maria Curie-Skłodowska University
- 20-031 Lublin
- Poland
| | | | | | - Barbara Mirosław
- Department of Crystallography
- Faculty of Chemistry
- Maria Curie-Sklodowska University
- 20-031 Lublin
- Poland
| | - Antonio Frontera
- Departament de Química
- Universitat de les Illes Balears
- 07122 Palma (Baleares)
- Spain
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8
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Ding JD, Chen JF, Lin Q, Yao H, Zhang YM, Wei TB. A multi-stimuli responsive metallosupramolecular polypseudorotaxane gel constructed by self-assembly of a pillar[5]arene-based pseudo[3]rotaxane via zinc ion coordination and its application for highly sensitive fluorescence recognition of metal ions. Polym Chem 2018. [DOI: 10.1039/c8py01319e] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
A novel pillar[5]arene-based metallosupramolecular polypseudorotaxane gel has been successfully prepared.
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Affiliation(s)
- Jin-Dong Ding
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Jin-Fa Chen
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Qi Lin
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Hong Yao
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - You-Ming Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
| | - Tai-Bao Wei
- Key Laboratory of Eco-Environment-Related Polymer Materials
- Ministry of Education of China; Key Laboratory of Polymer Materials of Gansu Province; College of Chemistry and Chemical Engineering
- Northwest Normal University
- Lanzhou
- P. R. China
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9
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Mandal A, Patel BK. Rationalization of weak interactions in two fluorescence active imidazo-[1,5-a]-pyridine derivatives: A combined experimental and computational study. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2017.07.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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10
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Chen JF, Liu X, Ma JF, Han BB, Ding JD, Lin Q, Yao H, Zhang YM, Wei TB. A pillar[5]arene-based multiple-stimuli responsive metal-organic gel was constructed for facile removal of mercury ions. SOFT MATTER 2017; 13:5214-5218. [PMID: 28677714 DOI: 10.1039/c7sm01118k] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A thioacetohydrazide functionalized pillar[5]arene was synthesized, which could further assemble into a linear supramolecular metal-organic polymer upon adding Zn2+. Furthermore, the obtained linear supramolecular metal-organic polymer could self-assemble to form a fluorescent supramolecular metal-organic gel at high concentration. When TBAOH was added to the viscous solution at high temperature, the obtained solution could not form a supramolecular metal-organic gel upon cooling. More importantly, when Hg2+ ions are added to the metal-organic gel, the strong blue fluorescence is clearly quenched, and this metal-organic gel (xerogel) could effectively remove Hg2+ from water. Simultaneously, a thin film based on the metal-organic gel was prepared, which was confirmed to be a convenient test kit for detecting Hg2+.
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Affiliation(s)
- Jin-Fa Chen
- Key Laboratory of Eco-Environment-Related Polymer Materials, Ministry of Education of China, Key Laboratory of Polymer Materials of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou, Gansu 730070, P. R. China.
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11
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Molecular structures and fluorescence property of Zn(II), Cd(II) complexes of 3-pyridyl-5-aryl-(1 H )-1,2,4-triazoles. Polyhedron 2017. [DOI: 10.1016/j.poly.2017.04.040] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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