Thesis /

ROMDOC-THESIS-2016-525

Liganzi redox-activi cu proprietăţi de recunoaştere electrochimică

Caval, Dan-Ion
2010-04-16

Abstract: Abstract The thesis contains bibliographic studies concerning the molecular recognition general principles, the electrochemical methods for molecular recognition and the electrochemical recognition using redox-active ligands in solutions and immobilized on electrode surfaces. The electrochemical methods (cyclic voltammetry (CV), differential pulse voltammetry, electrochemical impedance spectroscopy, and controlled potential electrolysis), apparatus, reagents and procedures used in original experiments are presented. The original results are contained in 4 chapters. One chapter is dedicated to the electrochemical study of 3 new dipyridine: cysteine complexes: Ni(bpy)(cys)2; Ni(bpy)(cysMe)2, Zn(bpy)(cys)2, where bpy, cys and cysMe are, respectively, dipyridine, cysteine and cysteine methyl ester. Their properties were compared with those of the known complex Ni(bpy)2. Another chapter contains the results of the electrochemical studies for 20 new diazulene ligands. The investigated bisdiazenyl compounds can be considered as phenylene derivatives substituted in meta (compounds of the type 1 and 3) or para (compounds of the type 2 and 4) positions with azulenylazo groups. In the compounds 1 and 2 , one substituent is 1- azulenyl-azo and the other is a phenyl azo group, while in the compounds 3 and 4 these substituents are two identical or different azulenylazo groups being substituted with 4,6,8-Me3, 4,8-Me2-6-t-Bu or 3,8-Me2-5-i-Pr (guiazulenyl). Another chapter contains the electrochemical studies on the azo-azulenes film formation starting from phenyl-azo-1-azulene or its derivatives: 4-methoxy-phenyl-azo-1-azulene, 4-nitro-phenyl-azo-1-azulene, α-naphtylazo- 1-azulene, β-naphtyl-azo-1-azulene. Another chapter contains the electrochemical studies of 9 azulene ligands possessing complexing units of di-thienyl-pyridine type for cation recognition and di-furyl-pyranylium or di-thienylpyranylium type for anion recognition. The last chapter presents Cu(II) and Hg(II) ions electrochemical recognition experiments using a redox active tripode with multiple ferrocene redox centers and the simulation of the electrochemical behaviour in CV of multiple redox systems.

Keyword(s): Electrochimie -- Recunoaştere moleculară -- Teză de doctorat ; Senzori electrochimici -- Teză de doctorat ; Senzori moleculari amperometrici -- Teză de doctorat ; Compuşi organometalici -- Teză de doctorat
OPAC: See record in BC-UPB Web OPAC
Full Text: see files

Similar records

 

People who viewed this page also viewed:

(269)  Optimizarea conceptuală şi operaţională a instalaţiilor chimice multiscop - Voinescu, Sorin - ROMDOC-BC_UPB-THESIS-2003-000000054 (259)  Studiul procesului de măcinare a nutreţurilor concentrate în morile cu ciocane - Păun, I. Anişoara - ROMDOC-BC_UPB-THESIS-2004-000000319 (258)  Generation of Web services based on semantic description decomposition - Mogos, Andrei-Horia - ROMDOC-THESIS-2017-859 (258)  Managementul congestiilor în sistemele electroenergetice în prezenţa surselor regenerabile - Boambă, Claudia-Elena - ROMDOC-THESIS-2021-2325 (248)  In silico analysis, modelling and engineering of Escherichia coli metabolic network for succinic acid production - Bodor, Zsolt - ROMDOC-THESIS-2021-2310

 

Rate this document:

Be the first to review this document.

Discuss this document:

Start a discussion about any aspect of this document.