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3–(2–Pyridyl)pyrazole Based Luminescent 1D-Coordination Polymers and Polymorphic Complexes of Various Lanthanide Chlorides Including Orange-Emitting Cerium(III). INORGANICS 2022. [DOI: 10.3390/inorganics10120254] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
Abstract
A series of 18 lanthanide-containing 1D-coordination polymers 1∞[Ln2(2–PyPzH)4Cl6], Ln = La, Nd, Sm, dinuclear polymorphic complexes α–, β–[Ln2(2–PyPzH)4Cl6], Ln = Sm, Eu, Gd, α–[Tb2(2–PyPzH)4Cl6], and [Gd2(2–PyPzH)3(2–PyPz)Cl5], mononuclear complexes [Ce(2–PyPzH)3Cl3], [Ln(2–PyPzH)2Cl3], Ln = Tb, Dy, Ho, and Er, and salt-like complexes [Gd3(2–PyPzH)8Cl8]Cl and [PyH][Tb(2–PyPzH)2Cl4] were obtained from the reaction of the respective lanthanide chloride with the 3–(2–pyridyl)pyrazole (2–PyPzH) ligand at different temperatures. An antenna effect through ligand-to-metal energy transfer was observed for several products, leading to the highest luminescence efficiency displayed by a quantum yield of 92% in [Tb(2–PyPzH)2Cl3]. The Ce3+ ion in the complex [Ce(2–PyPzH)3Cl3] exhibits a bright and orange 5d-based broadband emission with a maximum at around 600 nm, marking an example of a strong reduction of the 5d-excited states of Ce(III). The absorption spectroscopy shows ion-specific 4f–4f transitions, which can be assigned to Nd3+, Sm3+, Eu3+, Dy3+, Ho3+, and Er3+ in a wide spectral range from UV–VIS to the NIR region.
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Youssef H, Schäfer T, Becker J, Sedykh AE, Basso L, Pietzonka C, Taydakov IV, Kraus F, Müller-Buschbaum K. 3D-Frameworks and 2D-networks of lanthanide coordination polymers with 3-pyridylpyrazole: photophysical and magnetic properties. Dalton Trans 2022; 51:14673-14685. [PMID: 36098070 DOI: 10.1039/d2dt01999j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of 15 lanthanide-containing coordination polymers, both 3D- and 2D-networks, as well as complexes of Ln-trichlorides with 3-(3-pyridyl)pyrazole (3-PyPzH), were synthesized. A large structural diversity is observed depending on the ligand content: 3∞[Ln(3-PyPzH)Cl3], Ln = Eu and Gd, of sra topology, 2∞[Sm(3-PyPzH)Cl3], 2∞[Ln2(3-PyPzH)3Cl6]·2solv, Ln = Eu3+, Tb3+, Dy3+, Ho3+ and Er3+, solv = Tol and MeCN, of sql topology and 2∞[Ln(3-PyPzH2)Cl4], Ln = La and Nd, of hcb topology with salt like complexes of the formula [(3-PyPzH2)][Ln(3-PyPzH)2Cl4], Ln = Eu, Tb, Dy and Ho. The products were characterized by single-crystal and powder X-ray diffraction, high-temperature X-ray diffraction, differential thermal analysis and thermogravimetry (DTA/TG) combined with mass spectrometry, differential scanning calorimetry (DSC), IR-spectroscopy, UV-visible spectrophotometry, photoluminescence spectroscopy, and magnetic susceptibility. Absorption spectroscopy shows ion-specific 4f-4f transitions that can be assigned to Sm3+, Eu3+, Dy3+, Ho3+ and Er3+ in a wide range from the UV-VIS to NIR region. An excellent antenna effect through ligand-metal energy transfer was observed in 2∞[Tb2(3-PyPzH)3Cl6]·2solv, leading to high efficiency of the luminescence indicated by a quantum yield up to 76%. Direct current magnetic susceptibility studies reveal the absence of interatomic interaction for Dy3+ and Er3+ and weak ferromagnetic interaction for Ho3+. Thermal analysis shows good stability up to 365 °C for 2∞[Ho2(3-PyPzH)3Cl6]·2MeCN.
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Affiliation(s)
- Heba Youssef
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany. .,Department of Chemistry, Faculty of Science, Mansoura University, El Gomhouria, Mansoura Qism 2, Dakahlia Governorate, 11432, Mansoura, Egypt
| | - Thomas Schäfer
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany.
| | - Jonathan Becker
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany.
| | - Alexander E Sedykh
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany.
| | - Leonardo Basso
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany.
| | - Clemens Pietzonka
- Fachbereich Chemie, Philipps-Universitaet Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Ilya V Taydakov
- Lebedev Physical Institute of the Russian Academy of Sciences, Leninskiy pr-t, 53, 119991, Moscow, Russia
| | - Florian Kraus
- Fachbereich Chemie, Philipps-Universitaet Marburg, Hans-Meerwein-Straße, 35032 Marburg, Germany
| | - Klaus Müller-Buschbaum
- Institute of Inorganic and Analytical Chemistry, Justus-Liebig-University Giessen, Heinrich-Buff-Ring 17, 35392 Giessen, Germany. .,Center for Materials Research (LAMA), Justus-Liebig-University Giessen, Heinrich-Buff-Ring 16, 35392 Giessen, Germany.
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Triphenyltin(IV) dithiocarbamate compound induces genotoxicity and cytotoxicity in K562 human erythroleukemia cells primarily via mitochondria-mediated apoptosis. Food Chem Toxicol 2022; 168:113336. [PMID: 35963475 DOI: 10.1016/j.fct.2022.113336] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2021] [Revised: 06/25/2022] [Accepted: 07/27/2022] [Indexed: 11/22/2022]
Abstract
The novel di-and triphenyltin(IV) dithiocarbamate compounds represented as RnSnL2 (where R = C4H9, C6H5; n = 2,3; L = N,N-dithiocarbamate), Ph2Sn(N,N-diisopropyldithiocarbamate) (OC1), Ph3Sn(N,N-diisopropyldithiocarbamate) (OC2), Ph2Sn(N,N-diallyldithiocarbamate) (OC3), Ph3Sn(N,N-diallyldithiocarbamate) (OC4), and Ph2Sn(N,N-diethyldithiocarbamate) (OC5) were assessed for their cytotoxicity in K562 human erythroleukemia cells. All compounds inhibited the growth of cells at low micromolar concentrations (<10 μM), and the mechanism underlying their antiproliferative effects on K562 cells was apoptosis, as corroborated by the exposure of plasma membrane phosphatidylserine. OC2, which showed the most promising antiproliferative activity, was selected for further analyses. The results demonstrated that OC2 induced apoptosis in K562 cells via an intrinsic mitochondrial pathway triggered upon DNA damage, an early apoptotic signal. Subsequently, OC2 produced excessive intracellular reactive oxygen species. The role of oxidative stress was corroborated by the significant reduction in GSH levels and percentage of apoptosis in NAC-pretreated cells. OC2 could arrest the cell cycle progression in the S phase. These new findings elucidate the antiproliferative potential of OC2 in the K562 human erythroleukemia cells and warrant further investigation, specifically to determine the exact signaling pathway underlying its antileukemic efficacy.
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Onwudiwe DC, Adeyemi JO, Papane RT, Bobinihi FF, Hosten E. SPECTROSCOPIC AND STRUCTURAL CHARACTERIZATION OF Zn(II) BIS(N-ETHYL-N-ETHANOL DITHIOCARBAMATE) AND ITS ADDUCTS WITH N-DONOR LIGANDS. J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621030070] [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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Hua L, Li W, Chen Y, Liang K, Cai H, Wang J, Wang S, Yin T, Liang L. A hexanuclear Nd (III) complex derived from a Schiff base with significant antitumor and antifungal activity. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6081] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Lijuan Hua
- Department of Chemistry Bengbu Medical College Bengbu China
| | - Wenge Li
- Department of Chemistry Bengbu Medical College Bengbu China
| | - Yan Chen
- Department of Chemistry Bengbu Medical College Bengbu China
| | - Kai Liang
- Department of Chemistry Bengbu Medical College Bengbu China
| | - He Cai
- Department of Chemistry Bengbu Medical College Bengbu China
| | - Jing Wang
- Department of Chemistry Bengbu Medical College Bengbu China
| | - Siyu Wang
- Department of Chemistry Bengbu Medical College Bengbu China
| | - Tianyue Yin
- Department of Chemistry Bengbu Medical College Bengbu China
| | - Lili Liang
- Department of Chemistry Bengbu Medical College Bengbu China
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Yakubu A, Suzuki T, Kita M. Syntheses and crystal structures of neodymium(III) and europium(III) complexes bearing dimethyl-, pyrrolidine-, or S-prolinol- dithiocarbamato ligands and their natural and magnetic circular dichroism spectra. Inorganica Chim Acta 2019. [DOI: 10.1016/j.ica.2018.09.064] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Cary SK, Su J, Galley SS, Albrecht-Schmitt TE, Batista ER, Ferrier MG, Kozimor SA, Mocko V, Scott BL, Van Alstine CE, White FD, Yang P. A series of dithiocarbamates for americium, curium, and californium. Dalton Trans 2018; 47:14452-14461. [PMID: 30168828 DOI: 10.1039/c8dt02658k] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Characterizing how actinide properties change across the f-element series is critical for improving predictive capabilities and solving many nuclear problems facing our society. Unfortunately, it is difficult to make direct comparisons across the 5f-element series because so little is known about trans-plutonium elements. Results described herein help to address this issue through isolation of An(S2CNEt2)3(N2C12H8) (Am, Cm, and Cf). These findings included the first single crystal X-ray diffraction measurements of Cm-S (mean of 2.86 ± 0.04 Å) and Cf-S (mean of 2.84 ± 0.04 Å) bond distances. Furthermore, they highlight the potential of An(S2CNEt2)3(N2C12H8) for providing a test bed for comparative analyses of actinide versus lanthanide bonding interactions.
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Affiliation(s)
- Samantha K Cary
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA.
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Huang TH, Yang H, Zhu SL, Zhao B, Yang Y. Synthesis, structures and fluorescent properties of metal complexes based on polyphosphine ligands. J Mol Struct 2017. [DOI: 10.1016/j.molstruc.2016.07.076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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