1
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Putman JI, Armstrong DW. Recent advances in the field of chiral crystallization. Chirality 2022; 34:1338-1354. [PMID: 35904758 DOI: 10.1002/chir.23492] [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: 05/02/2022] [Revised: 06/08/2022] [Accepted: 06/10/2022] [Indexed: 11/08/2022]
Abstract
Crystallization is one of the largest and most economical bulk purification techniques used in industry today. There has been an increase in demand for enantiomerically pure compound production for research, organic synthesis, pharmaceutical drug production, and other applications. Even after asymmetric synthesis, chiral purification will always be necessary. The focus of this review is on recent advances in chiral crystallization for the purification of enantiomers. A comprehensive discussion of three techniques and their mechanisms is provided, namely: attrition-enhanced deracemization, cocrystallization, and inorganic ionic cocrystallization. Several examples of attrition-enhanced deracemization are discussed. The key advantage of this technique is that it eliminates enantiomeric waste and can be used to produce enantiomeric excesses of greater than 99% from racemic mixtures. Chiral cocrystallization is examined, with over 60 cocrystallizing compounds, as an excellent means for enantiomeric enrichment. Selective chiral inclusion complexation was shown to be a novel approach for the formation of cocrystals. Chiral inorganic ionic cocrystallization is a new technique involving the formation of cocrystals between chiral ligands and certain metal salts in order to produce conglomerate crystal behavior in otherwise racemic compounds.
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Affiliation(s)
- Joshua I Putman
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas, USA
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas, USA
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2
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Chiral resolution and absolute configuration determination of new metal-based photodynamic therapy antitumor agents. J Pharm Biomed Anal 2021; 204:114233. [PMID: 34252819 DOI: 10.1016/j.jpba.2021.114233] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Revised: 06/24/2021] [Accepted: 06/25/2021] [Indexed: 12/11/2022]
Abstract
The advent of cisplatin as a cancer drug in the late 1960s generated considerable interest in the use of transition metal complexes as cancer therapy agents. Despite enhanced research in this area, there has yet to be any non-platinum-based transition metal complex cancer drugs approved by the Food and Drug Administration (FDA). Recently a Ru(II) metal-organic dyad (TLD1433) has provided promising results as a photodynamic therapy (PDT) agent for some types of cancer. This particularly effective PDT compound has an oligothiophene chain appended to an imidazophenanthroline ligand which chelates Ru(II). The entire complex is chiral and is synthesized as a racemate. Five such chiral Ru(II) and Os(II) PDT agents were synthesized and their enantiomers separated for the first time. The enantiomers of these compounds are not easily crystalized. However, preparative LC provided sufficient amounts of these novel PDT agents to determine their absolute configurations by vibrational circular dichroism (VCD). The synthesis, separation and absolute configuration determinations are described and discussed in detail.
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3
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Ryan RT, Stevens KC, Calabro R, Parkin S, Mahmoud J, Kim DY, Heidary DK, Glazer EC, Selegue JP. Bis-tridentate N-Heterocyclic Carbene Ru(II) Complexes are Promising New Agents for Photodynamic Therapy. Inorg Chem 2020; 59:8882-8892. [DOI: 10.1021/acs.inorgchem.0c00686] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Raphael T. Ryan
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - Kimberly C. Stevens
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - Rosemary Calabro
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - Sean Parkin
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - Jumanah Mahmoud
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - Doo Young Kim
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - David K. Heidary
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - Edith C. Glazer
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
| | - John P. Selegue
- Department of Chemistry, University of Kentucky, 505 Rose Street, Lexington, Kentucky 40506, United States
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4
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Alatrash N, Issa FH, Bawazir NS, West SJ, Van Manen-Brush KE, Shelor CP, Dayoub AS, Myers KA, Janetopoulos C, Lewis EA, MacDonnell FM. Disruption of microtubule function in cultured human cells by a cytotoxic ruthenium(ii) polypyridyl complex. Chem Sci 2019; 11:264-275. [PMID: 34040721 PMCID: PMC8133002 DOI: 10.1039/c9sc05671h] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Treatment of malignant and non-malignant cultured human cell lines with a cytotoxic IC50 dose of ∼2 μM tris(4,7-diphenyl-1,10-phenanthroline)ruthenium(ii) chloride (RPC2) retards or arrests microtubule motion as tracked by visualizing fluorescently-tagged microtubule plus end-tracking proteins. Immunofluorescent microscopic images of the microtubules in fixed cells show substantial changes to cellular microtubule network and to overall cell morphology upon treatment with RPC2. Flow cytometry with MCF7 and H358 cells reveals only minor elevations of the number of cells in G2/M phase, suggesting that the observed cytotoxicity is not tied to mitotic arrest. In vitro studies with purified tubulin reveal that RPC2 acts to promote tubulin polymerization and when imaged by electron microscopy, these microtubules look normal in appearance. Isothermal titration calorimetry measurements show an associative binding constant of 4.8 × 106 M-1 for RPC2 to preformed microtubules and support a 1 : 1 RPC2 to tubulin dimer stoichiometry. Competition experiments show RPC2 does not compete for the taxane binding site. Consistent with this tight binding, over 80% of the ruthenium in treated cells is co-localized with the cytoskeletal proteins. These data support RPC2 acting as an in vivo microtubule stabilizing agent and sharing many similarities with cells treated with paclitaxel.
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Affiliation(s)
- Nagham Alatrash
- Department of Chemistry and Biochemistry, University of Texas at Arlington Arlington TX 76019 USA
| | - Faiza H Issa
- Department of Chemistry and Biochemistry, University of Texas at Arlington Arlington TX 76019 USA
| | - Nada S Bawazir
- Department of Biological Sciences, University of the Sciences Philadelphia PA 19104 USA
| | - Savannah J West
- Department of Chemistry, Mississippi State University Starkville MS 39762 USA
| | | | - Charles P Shelor
- Department of Chemistry and Biochemistry, University of Texas at Arlington Arlington TX 76019 USA
| | - Adam S Dayoub
- Department of Chemistry and Biochemistry, University of Texas at Arlington Arlington TX 76019 USA
| | - Kenneth A Myers
- Department of Biological Sciences, University of the Sciences Philadelphia PA 19104 USA
| | | | - Edwin A Lewis
- Department of Chemistry, Mississippi State University Starkville MS 39762 USA
| | - Frederick M MacDonnell
- Department of Chemistry and Biochemistry, University of Texas at Arlington Arlington TX 76019 USA
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5
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Lazarou KA, González-Nieves K, Chakraborty I, Raptis RG. Spontaneous Resolution by Crystallization of an Octanuclear Iron(III) Complex Using Only Racemic Reagents. Angew Chem Int Ed Engl 2019; 58:7324-7328. [PMID: 30891840 DOI: 10.1002/anie.201901877] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Revised: 03/17/2019] [Indexed: 11/10/2022]
Abstract
The P and M enantiomers of the octanuclear [Fe8 (μ4 -O)4 (μ-4-Cl-pz)12 Cl4 ] complex, having T symmetry, were resolved by temporary substitution of chloride ligands by racemic 4-s Bu-phenolates and subsequent crystallization, where the (S)- and (R)-phenolates coordinate selectively to the M and P complexes, respectively. The complexes were characterized by circular dichroism analysis and X-ray structure determination. This work constitutes a rare example of enantiomeric recognition resulting in spontaneous resolution upon crystallization.
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Affiliation(s)
- Konstantinos A Lazarou
- Department of Chemistry and Biochemistry and the Biomolecular Sciences Institute, Florida International University, 11200 SW 8th Street, Miami, FL, 33199, USA
| | - Karilys González-Nieves
- Department of Natural Sciences, University of Puerto Rico at Carolina, PO Box 4800, Carolina, PR, 00984, USA
| | - Indranil Chakraborty
- Department of Chemistry and Biochemistry and the Biomolecular Sciences Institute, Florida International University, 11200 SW 8th Street, Miami, FL, 33199, USA
| | - Raphael G Raptis
- Department of Chemistry and Biochemistry and the Biomolecular Sciences Institute, Florida International University, 11200 SW 8th Street, Miami, FL, 33199, USA
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6
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Lazarou KA, González‐Nieves K, Chakraborty I, Raptis RG. Spontaneous Resolution by Crystallization of an Octanuclear Iron(III) Complex Using Only Racemic Reagents. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901877] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Konstantinos A. Lazarou
- Department of Chemistry and Biochemistry and the Biomolecular Sciences InstituteFlorida International University 11200 SW 8th Street Miami FL 33199 USA
| | - Karilys González‐Nieves
- Department of Natural SciencesUniversity of Puerto Rico at Carolina PO Box 4800 Carolina PR 00984 USA
| | - Indranil Chakraborty
- Department of Chemistry and Biochemistry and the Biomolecular Sciences InstituteFlorida International University 11200 SW 8th Street Miami FL 33199 USA
| | - Raphael G. Raptis
- Department of Chemistry and Biochemistry and the Biomolecular Sciences InstituteFlorida International University 11200 SW 8th Street Miami FL 33199 USA
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7
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Mede T, Jäger M, Schubert US. "Chemistry-on-the-complex": functional Ru II polypyridyl-type sensitizers as divergent building blocks. Chem Soc Rev 2018; 47:7577-7627. [PMID: 30246196 DOI: 10.1039/c8cs00096d] [Citation(s) in RCA: 68] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Ruthenium polypyridyl type complexes are potent photoactive compounds, and have found - among others - a broad range of important applications in the fields of biomedical diagnosis and phototherapy, energy conversion schemes such as dye-sensitized solar cells (DSSCs) and molecular assemblies for tailored photo-initiated processes. In this regard, the linkage of RuII polypyridyl-type complexes with specific functional moieties is highly desirable to enhance their inherent photophysical properties, e.g., with a targeting function to achieve cell selectivity, or with a dye or redox-active subunits for energy- and electron-transfer. However, the classical approach of performing ligand syntheses first and the formation of Ru complexes in the last steps imposes synthetic limitations with regard to tolerating functional groups or moieties as well as requiring lengthy convergent routes. Alternatively, the diversification of Ru complexes after coordination (termed "chemistry-on-the-complex") provides an elegant complementary approach. In addition to the Click chemistry concept, the rapidly developing synthesis and purification methodologies permit the preparation of Ru conjugates via amidation, alkylation and cross-coupling reactions. In this regard, recent developments in chromatography shifted the limits of purification, e.g., by using new commercialized surface-modified silica gels and automated instrumentation. This review provides detailed insights into applying the "chemistry-on-the-complex" concept, which is believed to stimulate the modular preparation of unpreceded molecular assemblies as well as functional materials based on Ru-based building blocks, including combinatorial approaches.
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Affiliation(s)
- Tina Mede
- Laboratory of Organic and Macromolecular Chemistry (IOMC), Friedrich Schiller University Jena, Humboldtstraße 10, 07743 Jena, Germany.
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8
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Yang J, Tan X, Zhao Y. Chiral recognition of the carnitine enantiomers using rhodamine B as a resonance Rayleigh scattering probe. Chirality 2018; 30:1173-1181. [DOI: 10.1002/chir.23004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/26/2018] [Accepted: 06/07/2018] [Indexed: 12/30/2022]
Affiliation(s)
- Jidong Yang
- School of Environment and Chemical Engineering; Chongqing Three Gorges University; Chongqing People's Republic of China
- School of Chemistry and Chemical Engineering; Southwest University; Chongqing People's Republic of China
| | - Xuanping Tan
- School of Environment and Chemical Engineering; Chongqing Three Gorges University; Chongqing People's Republic of China
| | - Yanmei Zhao
- School of Environment and Chemical Engineering; Chongqing Three Gorges University; Chongqing People's Republic of China
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9
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Yuan H, Huang Y, Yang J, Guo Y, Zeng X, Zhou S, Cheng J, Zhang Y. An aptamer-based fluorescence bio-sensor for chiral recognition of arginine enantiomers. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2018; 200:330-338. [PMID: 29709792 DOI: 10.1016/j.saa.2018.04.038] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2018] [Revised: 04/12/2018] [Accepted: 04/17/2018] [Indexed: 06/08/2023]
Abstract
In this study, a novel aptamer - based fluorescence bio-sensor (aptamer-AuNps) was developed for chiral recognition of arginine (Arg) enantiomers based on aptamer and gold nanoparticles (AuNps). Carboxyfluorescein (FAM) labeled aptamers (Apt) were absorbed on AuNps and their fluorescence intensity could be significantly quenched by AuNps based on fluorescence resonance energy transfer (FRET). Once d-Arg or l-Arg were added into the above solution, the aptamer specifically bind to Arg enantiomers and released from AuNps, so the fluorescence intensity of d-Arg system and l-Arg system were all enhanced. The affinity of Apt to l-Arg is tighter to d-Arg, so the enhanced fluorescence signals of l-Arg system was stronger than d-Arg system. What's more, the enhanced fluorescence were directly proportional to the concentration of d-Arg and l-Arg ranging from 0-300 nM and 0-400 nM with related coefficients of 0.9939 and 0.9952, respectively. Furthermore, the method was successfully applied to detection l-Arg in human urine samples with satisfactory results. Eventually, a simple "OR" logic gate with d-Arg &l-Arg as inputs and AuNps aggregation state as outputs was fabricated, which can help us understand the chiral recognition process deeply.
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Affiliation(s)
- Haiyan Yuan
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, PR China; School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, PR China
| | - Yunmei Huang
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, PR China; School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, PR China
| | - Jidong Yang
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, PR China; School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, PR China.
| | - Yuan Guo
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, PR China; School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, PR China
| | - Xiaoqing Zeng
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, PR China; School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, PR China
| | - Shang Zhou
- College of Chemistry and Chemical Engineering, Yangtze Normal University, Chongqing 408100, PR China
| | - Jiawei Cheng
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, PR China; School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, PR China
| | - Yuhui Zhang
- Key Laboratory of Water Environment Evolution and Pollution Control in Three Gorges Reservoir, Chongqing Three Gorges University, PR China; School of Environment and Chemical Engineering, Chongqing Three Gorges University, Chongqing 404100, PR China
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10
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Sato H, Takimoto K, Mori H, Yamagishi A. Stereoselective interactions as manifested by vibrational circular dichroism spectra: the interplay between chiral metal complexes co-adsorbed in a montmorillonite clay. Phys Chem Chem Phys 2018; 20:25421-25427. [DOI: 10.1039/c8cp04753g] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Solid state VCD is applied for intercalated metal complexes.
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Affiliation(s)
- Hisako Sato
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Kazuyoshi Takimoto
- Department of Chemistry
- Graduate School of Science and Engineering
- Ehime University
- Matsuyama 790-8577
- Japan
| | - Hirotoshi Mori
- Faculty of Science
- Department of Chemistry
- Ochanomizu University
- Tokyo 112-8610
- Japan
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11
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12
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Alatrash N, Narh ES, Yadav A, Kim M, Janaratne T, Gabriel J, MacDonnell FM. Synthesis, DNA Cleavage Activity, Cytotoxicity, Acetylcholinesterase Inhibition, and Acute Murine Toxicity of Redox‐Active Ruthenium(II) Polypyridyl Complexes. ChemMedChem 2017; 12:1055-1069. [DOI: 10.1002/cmdc.201700240] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2017] [Revised: 05/29/2017] [Indexed: 11/06/2022]
Affiliation(s)
- Nagham Alatrash
- Department of Chemistry and Biochemistry The University of Texas at Arlington 700 Planetarium Place Arlington TX 76019 USA
| | - Eugenia S. Narh
- Department of Chemistry and Biochemistry The University of Texas at Arlington 700 Planetarium Place Arlington TX 76019 USA
| | - Abhishek Yadav
- Department of Chemistry and Biochemistry The University of Texas at Arlington 700 Planetarium Place Arlington TX 76019 USA
| | - Mahn‐Jong Kim
- Department of Chemistry and Biochemistry The University of Texas at Arlington 700 Planetarium Place Arlington TX 76019 USA
| | - Thamara Janaratne
- Department of Chemistry and Biochemistry The University of Texas at Arlington 700 Planetarium Place Arlington TX 76019 USA
| | - James Gabriel
- Department of Chemistry and Biochemistry The University of Texas at Arlington 700 Planetarium Place Arlington TX 76019 USA
| | - Frederick M. MacDonnell
- Department of Chemistry and Biochemistry The University of Texas at Arlington 700 Planetarium Place Arlington TX 76019 USA
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13
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Sázelová P, Koval D, Severa L, Teplý F, Kašička V. Chiral analysis of α-diimine Ru(II) and Fe(II) complexes by capillary electrophoresis using sulfated cyclodextrins as stereoselectors. Electrophoresis 2017; 38:1913-1921. [DOI: 10.1002/elps.201700077] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Revised: 04/13/2017] [Accepted: 04/13/2017] [Indexed: 12/19/2022]
Affiliation(s)
- Petra Sázelová
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Prague Czech Republic
| | - Dušan Koval
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Prague Czech Republic
| | - Lukáš Severa
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Prague Czech Republic
| | - Filip Teplý
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Prague Czech Republic
| | - Václav Kašička
- Institute of Organic Chemistry and Biochemistry; Czech Academy of Sciences; Prague Czech Republic
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14
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Bavireddi H, Vasudeva Murthy R, Gade M, Sangabathuni S, Chaudhary PM, Alex C, Lepenies B, Kikkeri R. Understanding carbohydrate-protein interactions using homologous supramolecular chiral Ru(ii)-glyconanoclusters. NANOSCALE 2016; 8:19696-19702. [PMID: 27874116 DOI: 10.1039/c6nr06431k] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Multivalent glycodendrimers make promising tools to tackle the basic and translational research in the field of carbohydrate-mediated interactions. Despite advances in glycodendrimers and glycopolymers, the multivalent probes available to date are still far from being ideal biological mimics. This work demonstrates the inherent chirality of glycodendrimers to be one of the promising factors to generate different spatial carbohydrate micro-environments to modulate specific carbohydrate-protein interactions. By exploiting the host-guest strategy, chiral Ru(ii) complexes (Δ and Λ) and mannose capped β-cyclodextrin (β-CD), we generated a library of homologous metallo-glycodendrimers (MGDs) with sizes of 50-70 nm. These nanoclusters can enantioselectively bind to specific C-type lectins and displayed selectivity in cellular uptake. We also discovered their potential clathrin-mediated endocytotic pathway in DC-SIGN and SIGNR3-transfected cell lines. Finally, in vivo biodistribution and sequestration of MGDs was determined to understand the role of chirality mediated spatial arrangement in carbohydrate-mediated interactions.
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Affiliation(s)
- Harikrishna Bavireddi
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
| | | | - Madhuri Gade
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
| | - Sivakoti Sangabathuni
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
| | | | - Catherine Alex
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
| | - Bernd Lepenies
- University of Veterinary Medicine Hannover, Immunology Unit & Research Center for Emerging Infections and Zoonoses, Hannover, Germany
| | - Raghavendra Kikkeri
- Indian Institution of Science Education and Research, Dr Homi Bhabha Road, Pune 411008, India.
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15
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Aihara Y, Sato K, Shinozaki K. Optical Resolution, Determination of Absolute Configuration, and Photoracemization of cis-RuL2(CN)2 (L = 2,2′-Bipyridine and Its Analogues). Inorg Chem 2016; 55:8387-95. [DOI: 10.1021/acs.inorgchem.6b00772] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yusuke Aihara
- Department of Material Science,
Graduate School of Nanobioscience, Yokohama City University, 22-2
Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Kyohei Sato
- Department of Material Science,
Graduate School of Nanobioscience, Yokohama City University, 22-2
Seto, Kanazawa-ku, Yokohama 236-0027, Japan
| | - Kazuteru Shinozaki
- Department of Material Science,
Graduate School of Nanobioscience, Yokohama City University, 22-2
Seto, Kanazawa-ku, Yokohama 236-0027, Japan
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16
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Kreitner C, Erdmann E, Seidel WW, Heinze K. Understanding the Excited State Behavior of Cyclometalated Bis(tridentate)ruthenium(II) Complexes: A Combined Experimental and Theoretical Study. Inorg Chem 2015; 54:11088-104. [DOI: 10.1021/acs.inorgchem.5b01151] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christoph Kreitner
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
- Graduate School Materials Science in Mainz, Staudingerweg 9, 55128 Mainz, Germany
| | - Elisa Erdmann
- Institute of Chemistry, University of Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany
| | - Wolfram W. Seidel
- Institute of Chemistry, University of Rostock, Albert-Einstein-Straße 3a, 18059 Rostock, Germany
| | - Katja Heinze
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-University of Mainz, Duesbergweg 10-14, 55128 Mainz, Germany
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17
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Zhang Y, Hu F, Wang B, Zhang X, Liu C. Enantioselective Recognition of Chiral Carboxylic Acids by a β-Amino Acid and 1,10-Phenanthroline Based Chiral Fluorescent Sensor. SENSORS 2015; 15:10723-33. [PMID: 25954953 PMCID: PMC4481974 DOI: 10.3390/s150510723] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Revised: 04/24/2015] [Accepted: 04/24/2015] [Indexed: 11/21/2022]
Abstract
A novel chiral 1,10-phenanthroline-based fluorescent sensor was designed and synthesized from optical active β-amino acids. It used 1,10-phenanthroline moiety as a fluorescent signaling site and binding site, with optically active β-amino acids as a chiral barrier site. Notably, the optically active β-amino acids were obtained by a Lewis base catalyzed hydrosilylation of β-enamino esters according to our former work. The chiral sensor has been used to conduct the enantioselective recognition of chiral mono and dicarboxylic acids derivatives. Using this fluorescent sensor, a moderate “turn-off” fluorescence-diminishment response towards enantiomer of tartaric acids, and proline was observed. It found that l-enantiomers quench the chiral fluorescence sensor more efficiently than d-enantiomers due to the absolute configuration of the β-amino acid.
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Affiliation(s)
- Yonghong Zhang
- Key Laboratory of Petroleum and Gas Fine Chemicals of Ministry of Education, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.
| | - Fangzhi Hu
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.
| | - Bin Wang
- Physics and Chemistry Detecting Center, Xinjiang University, Urumqi 830046, China.
| | - Xiaomei Zhang
- Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041, China.
| | - Chenjiang Liu
- Key Laboratory of Petroleum and Gas Fine Chemicals of Ministry of Education, School of Chemistry and Chemical Engineering, Xinjiang University, Urumqi 830046, China.
- Physics and Chemistry Detecting Center, Xinjiang University, Urumqi 830046, China.
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18
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Le VH, McGuire MR, Ahuja P, MacDonnell FM, Lewis EA. Thermodynamic Investigations of [(phen)2Ru(tatpp)Ru(phen)2]4+ Interactions with B-DNA. J Phys Chem B 2014; 119:65-71. [DOI: 10.1021/jp509569s] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Vu H. Le
- Department
of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Matthew R. McGuire
- Department
of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
| | - Pooja Ahuja
- Department
of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Frederick M. MacDonnell
- Department
of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, Texas 76019, United States
| | - Edwin A. Lewis
- Department
of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762, United States
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19
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Tan X, Li Q, Shen Y, Wu H, Zhao Y, Yang J. Chiral Recognition of Tyrosine Enantiomers Based on Decreased Resonance Scattering Signals With Silver Nanoparticles as Optical Sensor. Chirality 2014; 27:194-8. [DOI: 10.1002/chir.22410] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2014] [Revised: 09/27/2014] [Accepted: 10/15/2014] [Indexed: 11/08/2022]
Affiliation(s)
- Xuanping Tan
- School of Chemistry and Chemical Engineering; Southwest University; Chongqing P.R. China
| | - Qin Li
- Chongqing Medical and Health school; Fuling Chongqing P.R. China
| | - Yizhong Shen
- School of Chemistry and Chemical Engineering; Southwest University; Chongqing P.R. China
| | - Huan Wu
- School of Chemistry and Environment Engineering; Chongqing Three Gorges University; Wanzhou Chongqing P.R. China
| | - Yanmei Zhao
- School of Chemistry and Environment Engineering; Chongqing Three Gorges University; Wanzhou Chongqing P.R. China
| | - Jidong Yang
- School of Chemistry and Environment Engineering; Chongqing Three Gorges University; Wanzhou Chongqing P.R. China
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20
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Kreitner C, Grabolle M, Resch-Genger U, Heinze K. Dual Emission and Excited-State Mixed-Valence in a Quasi-Symmetric Dinuclear Ru–Ru Complex. Inorg Chem 2014; 53:12947-61. [DOI: 10.1021/ic5020362] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Christoph Kreitner
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-University
of Mainz, Duesbergweg 10–14, 55128 Mainz, Germany
- Graduate School Materials Science in Mainz, Staudingerweg
9, 55128 Mainz, Germany
| | - Markus Grabolle
- Federal Institute for Materials Research and Testing (BAM), Division 1.5, Richard-Willstätter-Str.
11, 12489 Berlin, Germany
| | - Ute Resch-Genger
- Federal Institute for Materials Research and Testing (BAM), Division 1.5, Richard-Willstätter-Str.
11, 12489 Berlin, Germany
| | - Katja Heinze
- Institute of Inorganic and Analytical Chemistry, Johannes Gutenberg-University
of Mainz, Duesbergweg 10–14, 55128 Mainz, Germany
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21
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Shu Y, Breitbach ZS, Dissanayake MK, Perera S, Aslan JM, Alatrash N, MacDonnell FM, Armstrong DW. Enantiomeric separations of ruthenium (II) polypyridyl complexes using HPLC with cyclofructan chiral stationary phases. Chirality 2014; 27:64-70. [PMID: 25288031 DOI: 10.1002/chir.22389] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2014] [Revised: 08/08/2014] [Accepted: 08/13/2014] [Indexed: 01/13/2023]
Abstract
The enantiomeric separation of 21 ruthenium (II) polypyridyl complexes was achieved with a novel class of cyclofructan-based chiral stationary phases (CSPs) in the polar organic mode. Aromatic derivatives on the chiral selectors proved to be essential for enantioselectivity. The R-napthylethyl carbamate functionalized cyclofructan 6 (LARIHC CF6-RN) column proved to be the most effective overall, while the dimethylphenyl carbamate cyclofructan 7 (LARIHC CF7-DMP) showed complementary selectivity. A combination of acid and base additives was necessary for optimal separations. The retention factor vs. acetonitrile/methanol ratio plot showed a U-shaped retention curve, indicating that different interactions take place at different polar organic solvent compositions. The separation results indicated that π-π interactions, steric effects, and hydrogen bonding contribute to the enantiomeric separation of ruthenium (II) polypyridyl complexes with cyclofructan chiral stationary phases in the polar organic mode.
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Affiliation(s)
- Yang Shu
- College of Life and Health Sciences, Northeastern University, Shenyang, China; Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX, USA
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22
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Song M, Sun Z, Han C, Tian D, Li H, Kim JS. Calixarene-based chemosensors by means of click chemistry. Chem Asian J 2014; 9:2344-57. [PMID: 24898975 DOI: 10.1002/asia.201400024] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2014] [Revised: 03/19/2014] [Indexed: 01/13/2023]
Abstract
Click chemistry, a new strategy for organic chemistry, has been widely used in the chemical modification of calixarenes because of its reliability, specificity, biocompatibility, and efficiency. Click-derived triazoles also play a critical role in sensing ions and molecules. This in-depth review provides an overview of calixarene-based chemosensors that incorporate click-derived triazoles, and their three characteristics (chromogenic, fluorescence, and wettability) are reviewed.
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Affiliation(s)
- Miaomiao Song
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079 (P.R. China)
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23
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Pal AK, Ducharme PD, Hanan GS. Enhanced stereoselectivity in a di-Ru(ii) complex of an achiral bis-bidentate ligand. Chem Commun (Camb) 2014; 50:3303-5. [DOI: 10.1039/c3cc47856d] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The diastereoselective formation of a meso-dinuclear Ru(ii) complex of a novel bis-bidentate ligand is reported along with its electrochemical and photophysical properties.
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Affiliation(s)
- Amlan K. Pal
- Départment de Chimie
- Université de Montréal
- Montréal, Canada
| | | | - Garry S. Hanan
- Départment de Chimie
- Université de Montréal
- Montréal, Canada
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24
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Abstract
In 1974, the metal-to-ligand charge transfer (MLCT) excited state,
[Ru(bpy)3]2+*, was shown to undergo electron transfer
quenching by methylviologen dication (MV2+), inspiring a new approach
to artificial photosynthesis based on molecules, molecular-level phenomena, and
a “modular approach”. In the intervening years, application of synthesis,
excited-state measurements, and theory to [Ru(bpy)3]2+*
and its relatives has had an outsized impact on photochemistry and photophysics.
They have provided a basis for exploring the energy gap law for nonradiative
decay and the role of molecular vibrations and solvent and medium effects on
excited-state properties. Much has been learned about light absorption,
excited-state electronic and molecular structure, and excited-state dynamics on
timescales from femtoseconds to milliseconds. Excited-state properties and
reactivity have been exploited in the investigation of electron and energy
transfer in solution, in molecular assemblies, and in derivatized polymers and
oligoprolines. An integrated, hybrid approach to solar fuels, based on
dye-sensitized photoelectrosynthesis cells (DSPECs), has emerged and is being
actively investigated.
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25
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Lin C, Liu W, Fan J, Wang Y, Zheng S, Lin R, Zhang H, Zhang W. Synthesis of a novel cyclodextrin-derived chiral stationary phase with multiple urea linkages and enantioseparation toward chiral osmabenzene complex. J Chromatogr A 2013; 1283:68-74. [DOI: 10.1016/j.chroma.2013.01.087] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2012] [Revised: 01/21/2013] [Accepted: 01/22/2013] [Indexed: 01/23/2023]
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26
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Yadav A, Janaratne T, Krishnan A, Singhal SS, Yadav S, Dayoub AS, Hawkins DL, Awasthi S, MacDonnell FM. Regression of lung cancer by hypoxia-sensitizing ruthenium polypyridyl complexes. Mol Cancer Ther 2013; 12:643-53. [PMID: 23443803 DOI: 10.1158/1535-7163.mct-12-1130] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The ruthenium (II) polypyridyl complexes (RPC), Δ-[(phen)2Ru(tatpp)]Cl2 (Δ-[3]Cl2) and ΔΔ-[(phen)2Ru(tatpp)Ru(phen)2]Cl4 (ΔΔ-[4]Cl4, are a new generation of metal-based antitumor agents. These RPCs bind DNA via intercalation of the tatpp ligand, which itself is redox-active and is easily reduced at biologically relevant potentials. We have previously shown that RPC 4(4+) cleaves DNA when reduced by glutathione to a radical species and that this DNA cleavage is potentiated under hypoxic conditions in vitro. Here, we show that 3(2+) also exhibits free radical-mediated DNA cleavage in vitro and that 3(2+) and 4(4+) both exhibit selective cytotoxicity toward cultured malignant cell lines and marked inhibition of tumor growth in vivo. The murine acute toxicity of RPCs 3(2+) and 4(4+) (maximum tolerable doses ~ 65 μmol/kg) is comparable with that for cisplatin (LD50 ~ 57 μmol/kg), but unlike cisplatin, RPCs are generally cleared from the body unchanged via renal excretion without appreciable metabolism or nephrotoxic side effects. RPCs 3(2+) and 4(4+) are shown to suppress growth of human non-small cell lung carcinoma (~83%), show potentiated cytotoxicity in vitro under hypoxic conditions, and induce apoptosis through both intrinsic and extrinsic pathways. The novel hypoxia-enhanced DNA cleavage activity and biologic activity suggest a promising new anticancer pharmacophore based on metal complexes with aromatic ligands that are easily reduced at biologically accessible potentials.
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Affiliation(s)
- Abhishek Yadav
- Department of Chemistry and Biochemistry, University of Texas at Arlington, Arlington, TX 76019, USA
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27
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Liu X, Meng L. Chiral adsorption of phenylalanine by α-, β-cyclodextrin modified layered double hydroxides. KOREAN J CHEM ENG 2013. [DOI: 10.1007/s11814-012-0217-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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28
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Mao X, Su H, Tian D, Li H, Yang R. Bipyrene-functionalized graphene as a "turn-on" fluorescence sensor for manganese(II) ions in living cells. ACS APPLIED MATERIALS & INTERFACES 2013; 5:592-597. [PMID: 23327831 DOI: 10.1021/am3026807] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
1,2-bis-(2-pyren-1-ylmethylamino-ethoxy) ethane (NPEY) was synthesized and brought to the surface of graphene nanosheets (GNs) via π-π stacking, which provided a simple and convenient route for processing "turn-on" fluorescent sensor by simply mixing the diluted aqueous solutions of both components. The synthesized NPEY modified graphene nanosheets (NPEY-GNs) not only allows good selectivity toward Mn(2+) with the detection limit of 4.6 × 10(-5) M, but also shows "turn-on" response for Mn(2+) both in vitro and in living cells. These sensing capabilities of NPEY-GNs in living cells make it a robust candidate for many biological fields, such as intracellular tracking, intracellular imaging, etc.
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Affiliation(s)
- Xiaowei Mao
- Key Laboratory of Pesticide & Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, PR China
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29
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Wang XL, Guo ZC, Liu GC, Qu Y, Yang S, Lin HY, Zhang JW. Tuning the lead complexes based on a double 1,10-phenanthroline derivative with versatile coordination behavior by dicarboxylates: from 0D nano-ring to an unprecedented 0D + 3D cocrystal. CrystEngComm 2013. [DOI: 10.1039/c2ce26399h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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30
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Miao F, Zhou J, Tian D, Li H. Enantioselective Recognition of Mandelic Acid with (R)-1,1-Bi-2-naphthol-Linked Calix[4]arene via Fluorescence and Dynamic Light Scattering. Org Lett 2012; 14:3572-5. [DOI: 10.1021/ol3007919] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Fajun Miao
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Juan Zhou
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Deimei Tian
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
| | - Haibing Li
- Key Laboratory of Pesticide and Chemical Biology (CCNU), Ministry of Education, College of Chemistry, Central China Normal University, Wuhan 430079, P. R. China
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31
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Yin GQ, Lian HC, Ni QL, Gui LC, Yang KG, Wang XJ. Synthesis, structures and photoluminescent properties of Cu+ complexes with extended π-systems. INORG CHEM COMMUN 2012. [DOI: 10.1016/j.inoche.2012.05.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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32
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Sun Y, Zhang L, Li H. Chiral colorimetric recognition of amino acids based on silver nanoparticle clusters. NEW J CHEM 2012. [DOI: 10.1039/c2nj40098g] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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33
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Su H, Zheng Q, Li H. Colorimetric detection and separation of chiral tyrosine based on N-acetyl-l-cysteine modified gold nanoparticles. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm16746h] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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34
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Sun P, Wang C, Padivitage NLT, Nanayakkara YS, Perera S, Qiu H, Zhang Y, Armstrong DW. Evaluation of aromatic-derivatized cyclofructans 6 and 7 as HPLC chiral selectors. Analyst 2011; 136:787-800. [DOI: 10.1039/c0an00653j] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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35
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Mitkina TV, Naumov DY, Gerasko OA, Fedin VP. Crystal structure and chemical oxidation of the palladium(II) cyclam complex within the cavity of cucurbit[8]uril. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.06.031] [Citation(s) in RCA: 9] [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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36
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Friese V, Nag S, Wang J, Santoni MP, Rodrigue-Witchel A, Hanan GS, Schaper F. Red Phosphorescence in RuII Complexes of a Tridentate N-Heterocyclic Carbene Ligand Incorporating Tetrahydropyrimidine. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000823] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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37
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Soloshonok VA, Ono T, Ueki H, Vanthuyne N, Balaban TS, Bürck J, Fliegl H, Klopper W, Naubron JV, Bui TTT, Drake AF, Roussel C. Ridge-tile-like chiral topology: synthesis, resolution, and complete chiroptical characterization of enantiomers of edge-sharing binuclear square planar complexes of Ni(II) bearing achiral ligands. J Am Chem Soc 2010; 132:10477-83. [PMID: 20662525 DOI: 10.1021/ja103296g] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Binuclear square planar Ni(II) complexes are described, formed by two tridentate ligands with two imine-nitrogens coordinating two nickel atoms. Such complexes are synthetically readily available with great structural variety and present new types of ridge-tile-like chiral compounds that are reasonably stable in the appropriate "bent" conformation. Enantiomerically pure samples of these compounds have been obtained for the first time using HPLC with a chiral stationary phase. Absolute configurations and chiroptical properties are fully characterized by ECD, VCD, ORD spectroscopy, and theoretical calculations. These new compounds with ridge-tile-like chiral topology are configurationally reasonably stable [DeltaG(double dagger) = 121.4 kJ mol(-1), t(1/2) = 14.9 h (78 degrees C, ethanol)], and therefore their chemistry, physical properties, and applications can be systematically studied.
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Affiliation(s)
- Vadim A Soloshonok
- Institute of Biorganic Chemistry and Petrochemistry, National Academy of Sciences of the Ukraine, Murmanska Street 1, Kyiv-94 02660, Ukraine.
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38
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Preparation of novel β-cyclodextrin functionalized monolith and its application in chiral separation. J Chromatogr B Analyt Technol Biomed Life Sci 2010; 878:2461-4. [DOI: 10.1016/j.jchromb.2010.07.020] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2010] [Revised: 07/24/2010] [Accepted: 07/26/2010] [Indexed: 11/22/2022]
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39
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Saito K, Sarukawa Y, Tsuge K, Konno T. Heterochiral vs. Homochiral Linkage of Emissive Iridium(III) Complexes with D-Penicillaminate: Drastic Change in Emission Induced by Silver(I) Linkage. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000689] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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40
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Tong MY, Payagala T, Perera S, MacDonnell FM, Armstrong DW. Study of a new chiral selector: Sodium arsenyl-(l)-(+) tartrate for capillary electrophoresis. J Chromatogr A 2010; 1217:1139-48. [DOI: 10.1016/j.chroma.2009.09.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2009] [Revised: 08/27/2009] [Accepted: 09/02/2009] [Indexed: 10/20/2022]
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41
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Wijeratne AB, Spencer SE, Gracia J, Armstrong DW, Schug KA. Antimony(III)-D, L-tartrates exhibit proton-assisted enantioselective binding in solution and in the gas phase. JOURNAL OF THE AMERICAN SOCIETY FOR MASS SPECTROMETRY 2009; 20:2100-2105. [PMID: 19683939 DOI: 10.1016/j.jasms.2009.07.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/19/2009] [Revised: 06/26/2009] [Accepted: 07/11/2009] [Indexed: 05/28/2023]
Abstract
The negative ion mode ESI mass spectral analysis of antimony(III)-D- and -L-tartrate ("tartar emetic"), in association with leucine enantiomeric isotopomers, revealed remarkable proton-assisted enantioselective molecular recognition phenomena. The current study infers that recognition of amino acids by antimony(III)-D,L-tartrate complexes requires that the chiral selector associate a proton to become enantioselective. The dianionic selector itself failed to show enantiomeric discrimination capacity. This observation was shown to be consistent both in solution-phase targeting full scan and gas-phase targeting collision threshold dissociation (CTD) experiments. Importantly, this disparity in enantioselective binding capacity between the dianionic and the protonated monoanionic representatives of antimony(III)-D- and -L-tartrates could only be clearly revealed by ESI-MS and tandem mass spectrometry experiments as described herein. This finding urges a more in-depth study of mechanisms associated with exhibited enantiomeric resolving capacity of antimony tartrates in HPLC and CE applications, as well as in former ESI-MS association studies.
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Affiliation(s)
- Aruna B Wijeratne
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, Arlington, TX, USA
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42
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Tamura M, Yamagishi M, Kawamoto T, Igashira-Kamiyama A, Tsuge K, Konno T. Synthesis and Linkage Isomerization of Thiolato-Bridged RuIIAgIRuII Trinuclear Complex with d-Penicillaminate. Inorg Chem 2009; 48:8998-9004. [DOI: 10.1021/ic901181x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Motoshi Tamura
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Masakazu Yamagishi
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Tatsuya Kawamoto
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Asako Igashira-Kamiyama
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Kiyoshi Tsuge
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
| | - Takumi Konno
- Department of Chemistry, Graduate School of Science, Osaka University, Toyonaka, Osaka 560-0043, Japan, and Department of Chemistry, Faculty of Science, Kanagawa University, Hiratsuka, Kanagawa 259-1293, Japan
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43
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Sun P, Perera S, MacDonnell FM, Armstrong DW. Development of New LC Chiral Stationary Phases Based on Ruthenium Tris(diimine) Complexes. J LIQ CHROMATOGR R T 2009. [DOI: 10.1080/10826070903126781] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- P. Sun
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington, Texas, USA
| | - S. Perera
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington, Texas, USA
| | - F. M. MacDonnell
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington, Texas, USA
| | - D. W. Armstrong
- a Department of Chemistry and Biochemistry , The University of Texas at Arlington , Arlington, Texas, USA
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44
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Sun P, Macdonnell FM, Armstrong DW. Enantioselective Host-Guest Complexation of Ru(II) trisdiimine complexes using neutral and anionic derivatized cyclodextrins. Inorganica Chim Acta 2009; 362:3073-3078. [PMID: 20161587 DOI: 10.1016/j.ica.2009.02.003] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
Enantioselective host-guest complexation between five racemic Ru(II) trisdiimine complexes and eight derivatized cyclodextrins (CDs) has been examined by NMR techniques. The appearance of non-equivalent complexation-induced shifts of between the Δ and Λ-enantionomers of the Ru(II) trisdiimine complexes and derivatized CDs is readily observed by NMR. In particular, sulfobutyl ether-β-cyclodextrin sodium salt (SBE-β-CD), R-naphtylethyl carbamate β-cyclodextrin (RN-β-CD), and S-naphtylethyl carbamate β-cyclodextrin (SN-β-CD) showed good enantiodiscrimination for all five Ru complexes examined, which indicates that aromatic and anionic derivatizing groups are beneficial for chiral recognition. The complexation stoichiometry between SBE-β-CD and [Ru(phen)(3)](2+) was found to be 1: 1 and binding constants reveal that Λ-[Ru(phen)(3)](2+) binds more strongly to SBE-β-CD than the Δ-enantiomer. Correlations between this NMR method and separative techniques based on CDs as chiral discriminating agents (i.e., selectors) are discussed in detail.
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Affiliation(s)
- Ping Sun
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
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45
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46
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Wijeratne AB, Schug KA. Molecular recognition properties of tartrates and metal-tartrates in solution and gas phase. J Sep Sci 2009; 32:1537-47. [DOI: 10.1002/jssc.200900064] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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47
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Sun P, Krishnan A, Yadav A, MacDonnell FM, Armstrong DW. Enantioseparations of Chiral Ruthenium(II) Polypyridyl Complexes Using HPLC with Macrocyclic Glycopeptide Chiral Stationary Phases (CSPs). J Mol Struct 2008; 890:75-80. [PMID: 25635147 PMCID: PMC4307835 DOI: 10.1016/j.molstruc.2008.02.030] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
A high performance liquid chromatographic method using macrocyclic glycopeptide chiral stationary phases (CSPs) was used to separate enantiomers of seven ruthenium(II) polypyridyl complexes. Among the five different CSPs, the Chirobiotic T2 was most effective and baseline separated all complexes. All complexes show the same elution order with the Δ-enantiomer being retained longer than the Λ-enantiomer. The mobile phase composition, including organic modifier type, organic modifier percent, salt type, and salt concentration, produced significant effects on the enantioresolution.
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Affiliation(s)
- Ping Sun
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
| | - Arthi Krishnan
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
| | - Abhishek Yadav
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
| | - Frederick M MacDonnell
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
| | - Daniel W Armstrong
- Department of Chemistry and Biochemistry, The University of Texas at Arlington, TX 76019, USA
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Affiliation(s)
- Timothy J Ward
- Millsaps College 1701 North State Street, Box 150306, Jackson, Mississippi 39210, USA.
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