Synthesis, characterisation and some chemistry of C- and B-substituted carboxylic acids of cobalt bis(dicarbollide)

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F14%3A00428161" target="_blank" >RIV/61388980:_____/14:00428161 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1039/c3dt52870g" target="_blank" >http://dx.doi.org/10.1039/c3dt52870g</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/c3dt52870g" target="_blank" >10.1039/c3dt52870g</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Synthesis, characterisation and some chemistry of C- and B-substituted carboxylic acids of cobalt bis(dicarbollide)

Popis výsledku v původním jazyce

Low temperature reactions of lithiated cobalt bis(1,2-dicarbollide)(1-) (1(-)) in DME with carbon dioxide leads to the substitution of 1(-) at the C-atoms by carboxy function(s). This results in a good yield formation of monosubstituted and disubstitutedproducts of formulations [(1-HOOC-1,2-C2B9H10)(1', 2'-C2B9H11)3,3'-Co)](-) (2(-)) and [(HOOC)(2)-(1,2-C2B9H10)(2)-3,3'-Co](-)(3a, b(-)), respectively. Indeed, the latter compound is in fact a mixture of two diastereoisomers, denoted here as 1,1'-anti (3a(-)) and 1,2'-syn-isomer (3b(-)), from which only the former major species (3a(-)) could be isolated in pure form. Considerations about stereochemistry of these species are supported by geometry optimizations and calculations of 11B NMR shifts at the GIAO-DFT level. In addition, three monocarboxylic acids with three different linear spacers between the carboxy groups and the cage are reported. The first one of the formula [(1-HOOC-CH2-1,2-C2B9H10)(1', 2'-C2B9H11)-3,3'-Co]-(5-) results i

Název v anglickém jazyce

Synthesis, characterisation and some chemistry of C- and B-substituted carboxylic acids of cobalt bis(dicarbollide)

Popis výsledku anglicky

Low temperature reactions of lithiated cobalt bis(1,2-dicarbollide)(1-) (1(-)) in DME with carbon dioxide leads to the substitution of 1(-) at the C-atoms by carboxy function(s). This results in a good yield formation of monosubstituted and disubstitutedproducts of formulations [(1-HOOC-1,2-C2B9H10)(1', 2'-C2B9H11)3,3'-Co)](-) (2(-)) and [(HOOC)(2)-(1,2-C2B9H10)(2)-3,3'-Co](-)(3a, b(-)), respectively. Indeed, the latter compound is in fact a mixture of two diastereoisomers, denoted here as 1,1'-anti (3a(-)) and 1,2'-syn-isomer (3b(-)), from which only the former major species (3a(-)) could be isolated in pure form. Considerations about stereochemistry of these species are supported by geometry optimizations and calculations of 11B NMR shifts at the GIAO-DFT level. In addition, three monocarboxylic acids with three different linear spacers between the carboxy groups and the cage are reported. The first one of the formula [(1-HOOC-CH2-1,2-C2B9H10)(1', 2'-C2B9H11)-3,3'-Co]-(5-) results i

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CA - Anorganická chemie

OECD FORD obor

—

Projekt

<a href="/cs/project/IAAX00320901" target="_blank" >IAAX00320901: Funkční deriváty klastrových sloučenin boru jako inhibitory virových enzymů</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Dalton Transactions

ISSN

1477-9226

e-ISSN

—

Svazek periodika

43

Číslo periodika v rámci svazku

13

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

5106-5120

Kód UT WoS článku

000332475300023

EID výsledku v databázi Scopus

—