Topic
Iodine
About: Iodine is a research topic. Over the lifetime, 8936 publications have been published within this topic receiving 139981 citations. The topic is also known as: I & element 53.
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40 citations
TL;DR: In this article, surface and bottom water samples were collected along the Nile River estuary for the voltammetric determination of dissolved iodine species during high and low-flood periods.
40 citations
TL;DR: The diffusion coefficients of triiodide in binary mixtures of ionic liquids at 25 ± 0.05 °C were determined via steady-state cyclic voltammetry at platinum disk microelectrodes in five different electrolyte systems, all representing potential ionic liquid based electrolytes for dye-sensitised solar cells.
Abstract: The diffusion coefficients of triiodide in binary mixtures of ionic liquids at 25 ± 0.05 °C were determined via steady-state cyclic voltammetry at platinum disk microelectrodes in five different electrolyte systems, all representing potential ionic liquid based electrolytes for dye-sensitised solar cells. These electrolytes were composed of iodine, 1-methyl-3-propylimidazolium iodide (acting as iodide source) and a second lower viscous ionic liquid, namely 1-ethyl-3-methylimidazolium dicyanamide, 1-ethyl-3-methylimidazolium tetrafluoroborate or 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide) and were investigated either at fixed ionic liquid composition and varying iodine concentration or at fixed iodine concentration and varying 1-methyl-3-propylimidazolium iodide content. To check and optimise our measurement set-up, four Pt disk microelectrodes with four different electrode radii (0.3–5 µm) were tested at a well known system (ferrocene/tetraethylammonium tetrafluoroborate/acetonitrile solutions). The radius of each electrode was controlled by scanning electron microscopy at the beginning and during the work.
40 citations
TL;DR: In this first work, the radioactive iodine was mixed with a relatively large amount of the stable iodine isotope .(carrier) , which competed with the radioactive form for utilization.
Abstract: IT IS WELL KNOWN that the thyroid gland takes up iodine (1). When radioactive isotopes of this element became available, tracer studies were carried out to discover what portion of an administered amount lodged in the gland, and what became of the remainder (2, 3). In this first work, the radioactive iodine was mixed with a relatively large amount of the stable iodine isotope .(carrier) , which competed with the radioactive form for utilization. It was not possible to administer much radioactive material without at the same time using quantities of stable isotope larger than the individual's normal daily requirement of this element. In this case, thyroid behavior might have been complicated by an iodine effect. Furthermore, with the small amounts of radioactivity used, quantitative measurements in vivo were not entirely satisfactory. Later, carrier-free radioactive iodine became available, and its use circumvented these earlier difficulties. With this material, considerable radioactivity is carried by ver...
40 citations
TL;DR: Conversion of both iodine atoms of I(2) to I(+) sources results in 100% iodine atom economy for the reported iodo-cofunctionalization of alkenes.
Abstract: Molecular iodine, I2, is readily converted into 2 equiv of acetyl hypoiodite (CH3CO2I) via oxidation by (diacetoxyiodo)benzene (DAIB) followed by trapping of the iodide ion by acetoxyphenyl iodonium ion formed. The in situ generated CH3CO2I is utilized for the synthesis of 1,2-iodo-cofunctionalized derivatives of a variety of alkenes. Conversion of both iodine atoms of I2 to I+ sources results in 100% iodine atom economy for the reported iodo-cofunctionalization of alkenes.
40 citations