Incremental iodination of the eight-vertex closo monocarborane anion [closo-1-CB7H8](-): preparation and characterization of [closo-1-CB7H5-6,7,8-I-3](-) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-), and the synthesis of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-)

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F10%3A10057078" target="_blank" >RIV/00216208:11310/10:10057078 - isvavai.cz</a>
Alternative codes found
RIV/61388980:_____/10:00356979
Result on the web
—
DOI - Digital Object Identifier
—

Result language
angličtina
Original language name
Incremental iodination of the eight-vertex closo monocarborane anion [closo-1-CB7H8](-): preparation and characterization of [closo-1-CB7H5-6,7,8-I-3](-) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-), and the synthesis of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-)
Original language description
Iodination of [closo-1-CB7H8](-) (anion 1) with elemental iodine under various controlled conditions yields a continuum from mono-to hexaiodinated derivatives including the previously unknown [closo-1-CB7H5-6,7,8-I-3](-) (anion 5) and [closo-1-CB7H2-2,3,4,6,7,8-I-6](-) (anion 8). These species, characterized by mass spectrometry and NMR spectroscopy, and, in the case of 8, by single-crystal X-ray diffraction, provide insight into the fluxional molecular behavior of anion 1 in solution. Investigation ofdirect electrophilic substitution on the carbon-vertex of anion 1 using standard conditions and reagents (deprotonation by BuLi followed by addition of electrophile) proved futile, but the same conditions when using the new triiodo-deravitive anion 5 resulted in the formation of the first eight-vertex C-methylated carborane anion [1-CH3-closo-1-CB7H4-6,7,8-I-3](-) (anion 9), in 60% yield.
Czech name
—
Czech description
—

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CA - Inorganic chemistry
OECD FORD branch
—

Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year
2010
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Similar results(10)