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Book Synthesis and Characterization of Enantiopure Multi nuclear Ruthenium II Complexes

Download or read book Synthesis and Characterization of Enantiopure Multi nuclear Ruthenium II Complexes written by Shawn Glen Ridlen and published by . This book was released on 2012 with total page 218 pages. Available in PDF, EPUB and Kindle. Book excerpt: The photophysical properties of the +2 and +3 dinuclear complexes have been studied using fluorescence spectroscopy and time correlated single photon counting (TCSPC) lifetime spectroscopy. In addition, the +3 dinuclear Ru complex has been synthesized in an enantiomerically pure fashion and will be used to study the effect of intramolecular charge transfer on the optical response of these compounds by using circular dichroism spectroscopy. The optical activity of the mononuclear Ru(phen)2(phendione) precursor is retained in the A and A enantiomers of the +3 dinuclear Ru complex. It is proposed that these compounds may impart some of that optical activity to other nanomaterials.

Book Synthesis and Characterization of Ruthenium II hispolon Complexes

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:

Book Synthesis and Characterization of Ruthenium II Polypyridyl Complexes

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:

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

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)]

Book Synthesis and Characterization of Hybrid Drugs Based on Ruthenium Complex Moiety and Biologically Active Organic Compounds

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.

Book Synthesis and Characterization of Di 2 pyridylmethanamine and Bis 2 pyridylmethyl amine Ruthenium II Complexes

Download or read book Synthesis and Characterization of Di 2 pyridylmethanamine and Bis 2 pyridylmethyl amine Ruthenium II Complexes written by Steve Johnston and published by . This book was released on 2000 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Characterization of a Ruthenium Complex of Dibenzothiophene

Download or read book Synthesis and Characterization of a Ruthenium Complex of Dibenzothiophene written by Stella Miatta Bucknor and published by . This book was released on 1981 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Ruthenium II Complexes of Monoanionic Bisphosphinoaryl Ligands

Download or read book Ruthenium II Complexes of Monoanionic Bisphosphinoaryl Ligands written by Paulo Dani and published by . This book was released on 2000 with total page 129 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Characterization of Some Ruthenium 8 quinolinolato Complexes

Download or read book Synthesis and Characterization of Some Ruthenium 8 quinolinolato Complexes written by Gary Stuart Rodman and published by . This book was released on 1981 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Synthesis and Characterization of Ruthenium Complexes with N N P P and N P 2 Donor Sets

Download or read book Synthesis and Characterization of Ruthenium Complexes with N N P P and N P 2 Donor Sets written by Xinwei Yang and published by . This book was released on 2017 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the discovery of nonlinear effects, both the theory and measurement techniques have been developed significantly, especially since the invention of the laser. However, structure-NLO property relationships for organometallics as well as their NLO mechanisms are far less explored than those of organic molecules and inorganic salts. The greater flexibility and exceptionally large NLO responses of organometallic compounds attracts chemists to this field. Modification of coordinated co-ligands in organometallic systems has influence on the NLO merit by introducing new electronic charge-transfer transitions, oxidation state and coordination sphere of the metal centers. In this work, the donor sets of the ruthenium complexes were modified from the most investigated (P-P)(P-P) to (N-N)(P-P) and (N-P)2 and a series of ruthenium complexes were synthesized and characterized. In Chapter 2, the study of the Ru(N-N)(P-P) complexes is detailed. Three bidentate diphosphine ligands (dppe, dppb and dppf) and one diimine ligand (tert-Bu-bpy) were selected for this study as the diphosphine and diimine ligands, respectively. Ruthenium halide and mono-alkynyl complexes were obtained successfully. Their optical, electrochemical and spectroelectrochemical properties were examined and are discussed. The formation of eta3- and eta1-butenynyl complexes was confirmed by single-crystal X-ray diffraction. Attempts towards bis-alkynyl complexes were made, but no conclusive evidence could be obtained to confirm the successful synthesis of this species. In Chapter 3, the focus of the work is the study of ruthenium complexes with a (N-P)2 donor set. Two iminophosphine ligands, 2-(diphenylphosphino)pyridine (PPh2py) and 8-(diphenylphosphino)quinoline (PPh2qn), were selected for this study. The cis-RuCl2(N-P) complexes and the corresponding dimers were synthesized and characterized. Their optical and electrochemical properties were measured and are discussed. In Chapter 4, the quadratic and cubic nonlinear optical properties of organometallic complexes were explored by hyper-Rayleigh scattering (HRS) and frequency-depentdent Z-scan techniques, respectively. The first hyperpolarizabilities of the ruthenium halide and mono-alkynyl complexes described in Chapter 2 were determined by HRS measurements. The second hyperpolarizabilities of some organometallic complexes synthesized by the Humphrey group and the collaborators were measured by the Z-scan technique.