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Author : Youxiang Wang
Publisher :
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.:/5 (326 download)
Download or read book Synthesis and Characterization of Ruthenium (II) Polypyridyl Complexes written by Youxiang Wang and published by . This book was released on 1994 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sheau Yong Lau
Publisher :
ISBN 13 :
Total Pages : 54 pages
Book Rating : 4.:/5 (96 download)
Download or read book Synthesis and Characterization of Ruthenium (II) Complexes with Polypyridyl Ligands written by Sheau Yong Lau and published by . This book was released on 2007 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Youxiang Wang
Publisher :
ISBN 13 :
Total Pages : 416 pages
Book Rating : 4.:/5 (396 download)
Download or read book Synthesis and Characterization of Polypyridyl Ligands and Ruthenium(II) Complexes Based on the Reactivity of 4,5-diazafluorenone in the Presence and Absence of Ruthenium(II) Ion written by Youxiang Wang and published by . This book was released on 1998 with total page 416 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Carmen Kloer
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (143 download)
Download or read book Synthesis and Characterization of Ruthenium(II)-hispolon Complexes written by Carmen Kloer and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michele Lorena Folmar
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (976 download)
Download or read book Synthesis and Characterization of a New Ruthenium(ii) Polypyridyl Compound with a Quinolate-type Ligand written by Michele Lorena Folmar and published by . This book was released on 2016 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andile Mkhohlakali
Publisher :
ISBN 13 :
Total Pages : 244 pages
Book Rating : 4.:/5 (123 download)
Download or read book Synthesis, Characterization and Evaluation of Ruthenium(II) Polypyridyl Complexes as Sensitizer for Dye Sensitized Solar Cells written by Andile Mkhohlakali and published by . This book was released on 2015 with total page 244 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Colin R. Spencer
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (122 download)
Download or read book Synthesis and Characterization of Ruthenium Polypyridyl Complexes for Application in Photodynamic Therapy written by Colin R. Spencer and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Eighteen polypyridyl ruthenium complexes were synthesized and characterized to test their ability to be new photodynamic compounds (PDCs). Each compound bears oxazo- or imidazo[4,5-f][1,10]phenanthroline ligands with a varying R-group and 2,2-bipyridine and 1,10-phenanthroline ancillary ligands. Biological tests were employed for the complexes to test the potential to be new PDCs, and included DNA photocleavage, DNA binding, and photocytotoxicity. Compounds containing thiophenes as the R-group showed significant DNA damage in the photocleavage assays as well as light toxicity and low dark toxicity in photocytotoxic assays. Compounds with 1,10-phenanthroline ancillary ligands generally showed more DNA photocleavage, unwinding, and binding compared to their 2,2'-bipyridine counterparts. Dinuclear compounds containing the bis(imidazo[4,5-f][1,10]phenanthroline) bridging ligand exhibited the best results for high light toxicity and low dark toxicity, the strongest binding to DNA, and the most potency for DNA photocleavage. As such these compounds are promising candidates for new PDCs and warrant further investigations.
Author : Colin R. Spencer
Publisher :
ISBN 13 :
Total Pages : 588 pages
Book Rating : 4.:/5 (893 download)
Download or read book Synthesis and Characterization of Ruthenium Polypyridyl Complexes for Application in Photodynamic Theraoy written by Colin R. Spencer and published by . This book was released on 2012 with total page 588 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michał Pawel Łomzik
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (11 download)
Download or read book Synthesis and Characterization of Hybrid Drugs Based on Ruthenium Complex Moiety and Biologically Active Organic Compounds written by Michał Pawel Łomzik and published by . This book was released on 2016 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The main goal of this thesis was synthesis and preliminary characterization of novel ruthenium(II) polypyridyl complexes bearing biologically active molecules as potential theranostic agents. Luminescence for the diagnostic applications, and cytotoxicity for the anticancer, therapeutic applications are considered as the theranostic properties. Four new ligands containing biologically active moieties - 5-(4-4'-methyl-[2,2'-bipyridine]-4-ylbut-1-yn-1-yl)pyridine-2-carbaldehyde semicarbazone (L1), 3-(5-4'-methyl-[2,2'-bipyridine]-4-ylpentyl)imidazolidine-2,4-dione (L2), 5,5-dimethyl-3-(5-4'-methyl-[2,2'-bipyridine]-4-ylpentyl)imidazolidine-2,4-dione (L3) and [1-(5-4'-methyl-[2,2'-bipyridine]-4-ylpentyl)-2,5-dioxoimidazolidin-4-yl]urea (L4) were synthesized and characterized. The ligands were used to obtain nine novel ruthenium(II) polypyridyl complexes. Six complexes were synthesized with ligand L1 ([Ru(bpy)2(L1)]2+, [Ru(Mebpy)2(L1)]2+, [Ru(tBubpy)2(L1)]2+, [Ru(Phbpy)2(L1)]2+, [Ru(dip)2(L1)]2+, [Ru(SO3dip)2(L1)]2-) and three with ligands L2, L3 and L4 ([Ru(bpy)2(L2)]2+, [Ru(bpy)2(L3)]2+, [Ru(bpy)2(L4)]2+) (bpy = 2,2'-bipyridine, Mebpy = 4,4'-dimethyl-2,2-bipyridine, tBubpy = 4,4'-tert-butyl-2,2'-bipyridine, Phbpy = 4,4'-diphenyl-2,2-bipyridine, dip = 4,7-diphenyl-1,10-phenantroline and SO3dip = 4,7-di-(4-sulfonatophenyl)-1,10-phenantroline). The spectroscopic and photophysical properties of those complexes were determined. The presence of ligands L1-L4 in the structure of the complex decreased luminescence quantum yield and luminescence lifetime in comparison with unmodified [Ru(bpy)3]2+ complex. The theoretical calculations have shown that ligands L1-L4 do not have influence on ruthenium core geometry. However, they increased the energy of the HOMO that resulted in a shorter band gap. The simulated electronic absorption spectra were in a good agreement with the experimental data. The interactions between the studied ruthenium complexes and human serum albumin (HSA) were investigated. All studied Ru(II) complexes exhibited strong affinity to HSA with the association constant 105 M-1s-1, which suggests formation of Ru complex-HSA adducts. It was also determined that ruthenium complexes most likely bind to the hydrophobic pocket of protein, located in Sudlow's site I in the subdomain II A. Preliminary cytotoxicity evaluation for the studied ruthenium complexes showed their cytotoxic activity towards cancer cell lines. Those results, together with good luminescence properties of the studied ruthenium complexes (luminescence lifetimes and luminescence quantum yield) make them interesting candidates for potential theranostic applications.
Author : Rudi Kroener
Publisher :
ISBN 13 :
Total Pages : 190 pages
Book Rating : 4.:/5 (12 download)
Download or read book Synthesis and Characterization of Some New Polypyridine Ruthenium (II) Complexes Containing S-bonded Thioether Ligands written by Rudi Kroener and published by . This book was released on 1984 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Sangsub Han
Publisher :
ISBN 13 :
Total Pages : 294 pages
Book Rating : 4.:/5 (456 download)
Download or read book Synthesis and Characterization of Ruthenium Polypyridyl Complexes written by Sangsub Han and published by . This book was released on 2000 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Mathew Stein
Publisher :
ISBN 13 :
Total Pages : 58 pages
Book Rating : 4.:/5 (861 download)
Download or read book Synthesis and Characterization of a Series of Ruthenium Polypyridyl Metal Complexes written by Mathew Stein and published by . This book was released on 1999 with total page 58 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : José Guillermo Andino
Publisher :
ISBN 13 :
Total Pages : 380 pages
Book Rating : 4.:/5 (738 download)
Download or read book Synthesis, Characterization and Rearrangements of C1 Ruthenium (II) Polypyridyl Complexes Relevant to Electrocatalytic Reductions of CO2 written by José Guillermo Andino and published by . This book was released on 2005 with total page 380 pages. Available in PDF, EPUB and Kindle. Book excerpt: High yield syntheses of the isomeric cations cis -[Ru(bpy)([eta] 2 -tpy)(CO) 2](PF 6) 2 (1a and 2a : bpy=2,2'-bipyridine, tpy=2,2':6',2"--Terpyridine) have been developed. Compound 1a was produced from reactions of cis -[Ru([eta] 3 -tpy)(CO) 2 (CH 3 CN)](PF 6) 2 (6) with bpy. The linkage isomer 2a is produced by thermolysis of 1a . Procedures are described for the sodium borohydride reductions of 1a, 2a to the corresponding formyl (1b, 2b) and hydroxymethyl (1c, 2c) derivatives. Solutions of 1b decomposed readily at room temperature, and 2b isomerized to 1b in solution. Compound 2c isomerized to 1c in solution and also produced formaldehyde. Reaction of 2c with acid produced the metallacycle 2f . Acetylation of 1c and 2c produced acetoxymethyl derivatives 1d and 2d . Compound 2d isomerized to 1d in solution. Compounds 1a, 2a, 1c, 2d and 2f have been characterized by X-ray crystallography. The possible intermediacy of 1b, 2b, 1c and 2c in catalytic reductions of CO 2 leading to glyoxylic or glycolic acid is discussed. There was no evidence of a CO inserted product or a hydrolysis product from any formyl or hydroxymethyl complex; however, their lability led us to make their methoxymethyl analogues for additional study. Three isomeric methoxymethyl complexes [Ru(bpy)([eta] 2 -tpy)(CO)(CH 2 OCH 3)]PF 6 (1e, 2e and 3e) were synthesized and structurally characterized. Also, the precursor complexes, cis -[Ru(tpy)(CO)(S)CH 2 OCH 3]PF 6 (4, 5 ; S=MeCN, MeOH) were synthesized and structurally characterized. Packing diagrams indicate extensive [pi]-[pi] stacking interactions for 1e, 2e, and 3e . Compounds 2e and 3e are linkage isomers while 1e has distinct stereochemistry; 2e and 3e establish equilibrium in solution and slowly convert to 1e . Independent studies beginning with pure 2e or 3e did not establish whether one, or both, can isomerize to 1e . Non-dissociative trigonal twist mechanisms, in some cases followed by linkage isomerization, can rationalize the isomerizations. Alternatively, isomerization of 2e to 1e may occur by a "conrotatory twist" pathway followed by linkage isomerization. Although the linkage isomer of 1e would have the required stereochemistry for migratory insertion, no evidence for CO insertion was observed.
Author : Matthew Thomas Mongelli
Publisher :
ISBN 13 :
Total Pages : 149 pages
Book Rating : 4.:/5 (861 download)
Download or read book Synthesis, Characterization and Physical Studies of Ligand Bridged Bimetallic Aqua Ruthenium (II) Polypyridyl Complexes written by Matthew Thomas Mongelli and published by . This book was released on 2004 with total page 149 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Meijin Li
Publisher : Open Dissertation Press
ISBN 13 : 9781361428276
Total Pages : pages
Book Rating : 4.4/5 (282 download)
Download or read book Design, Synthesis and Characterization of Ruthenium(ii) and Rhenium(i) Complexes with Functionalized Ligands for Photo-And Electrochemi- Luminescence, Solvatochromism, Molecular Recognition and HPLC Separation Studies written by Meijin Li and published by Open Dissertation Press. This book was released on 2017-01-27 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This dissertation, "Design, Synthesis and Characterization of Ruthenium(II) and Rhenium(I) Complexes With Functionalized Ligands for Photo-and Electrochemi- Luminescence, Solvatochromism, Molecular Recognition and HPLC Separation Studies" by Meijin, Li, 李梅金, was obtained from The University of Hong Kong (Pokfulam, Hong Kong) and is being sold pursuant to Creative Commons: Attribution 3.0 Hong Kong License. The content of this dissertation has not been altered in any way. We have altered the formatting in order to facilitate the ease of printing and reading of the dissertation. All rights not granted by the above license are retained by the author. Abstract: Abstract of thesis entitled DESIGN, SYNTHESIS AND CHARACTERIZATION OF RUTHENIUM(II) AND RHENIUM(I) COMPLEXES WITH FUNCTIONALIZED LIGANDS FOR PHOTO- AND ELECTROCHEMI- LUMINESCENCE, SOLVATOCHROMISM, MOLECULAR RECOGNITION AND HPLC SEPARATION STUDIES Submitted by LI MEIJIN for the degree of Doctor of Philosophy at The University of Hong Kong in July 2006 A series of ruthenium(II) and rhenium(I) diimine complexes containing thia-, selena- and aza-crowns derived from 1,10-phenanthroline, [Ru(bpy) (phen-3S)](ClO ) 2 4 2 (phen-3S = 1,13-dioxa-4,7,10-trithiacyclopentadecano[2,3-f][1,10]phenanthroline), [Ru(bpy) (phen-2S)](ClO ) (phen-2S = 1,7,10,16-tetraoxa-4,13-dithiacyclohexa- 2 4 2 dodecano[2,3-f][1,10]phenanthroline), [Ru(bpy) (phen-S)](ClO ) (phen-S = 1,4,10,13- 2 4 2 tetraoxa-7-thiacyclopentadecano[2,3-f][1,10]phenanthroline), [Ru(bpy) (phen-Se)](ClO ) 2 4 2 (phen-Se = 1,4,10,13-tetraoxa-7-selenacyclopentadecano[2,3-f][1,10]phenanthroline), [Ru(bpy) (phen-OEt](ClO ) (phen-OEt = 5,6-diethoxy-[1,10]phenanthroline), 2 4 2 [Ru(bpy) (phen-2NH)](ClO ) (phen-2NH = 1,13-diaxa-4,7,10-trioxacyclopenta- 2 4 2 decano[2,3-f][1,10]phenanthroline), [Re(CO) (py)(phen-3S)]PF, [Re(CO) (py)(phen-S)]OTf 3 6 3 and [Re(CO) (py)(phen-Se)]OTf have been synthesized and characterized, and their photophysics, electrogenerated chemiluminescence (ECL) and electrochemistry were studied. Their interaction with metal ions was investigated by UV-vis, luminescence, NMR spectroscopy and ECL. [Ru(bpy) (phen-3S)](ClO ) and [Re(CO) (py)(phen-3S)]
Author : Yanling Chen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (859 download)
Download or read book Ruthenium(II) Polypyridyl Complexes as Potential Anticancer Drugs written by Yanling Chen and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Research on biological activities of ruthenium polypyridyl complexes (RPCs) continues to attract interest as these complexes have shown promising anticancer activity both in vitro and in vivo.1−3 The mononuclear RPC, [(phen)2Ru(tatpp)]2+ (MP) and related dinuclear complex [(phen)2Ru(tatpp)Ru(phen)2]4+ (P) have been shown to both intercalate with DNA and shown potentiated DNA cleavage under anaerobic and reducing conditions4−5, as well as shown good selectivity and cytotoxicity towards malignant cell lines in vitro and tumors in vivo.5 Both complexes contain the redox-active tatpp ligand which is thought to be an essential component for the observed biological activities. This thesis is focused on developing improvements to the stereoselective syntheses of the chiral complexes, [delta][delta]-P and [delta]-MP. It is also investigated the synthesis of a new analogue [(phen)2Ru(tadbp)]2+ (B) and its chiral form [delta]-B which contains a modified tatpp ligand that is only capable of binding one Ru ion. Moreover this thesis explores the ability of these large complexes to traverse the cell membranes and get into cells and cell nuclei by isolating treated cells and nuclei and determining their ruthenium content by graphite furnace atomic absorption method (GFAAS). The GFAAS data show that the two examined complexes [delta][delta]-P and [delta]-MP are able to quickly penetrate into cancer cells (H-358) and concentrate in nuclei, which is postulated due to their high binding affinity to DNA.
Author : Kerry A. Fichter
Publisher :
ISBN 13 :
Total Pages : 192 pages
Book Rating : 4.:/5 (577 download)
Download or read book Synthesis and Characterization of Ruthenium (II), Palladium (II), and Lanthanide (III) Bisamidine Complexes written by Kerry A. Fichter and published by . This book was released on 2004 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
