Search results
Title Alkynylation of graphene via the Sonogashira C-C cross-coupling reaction on fluorographene Author info Demetrios D. Chronopoulos ... [et al.] Author Chronopoulos Demetrios D. (20%)
Co-authors Medveď Miroslav 1971- (20%) UMBFP08 - Katedra chémie
Błoński Piotr (5%)
Nováček Zdeněk (5%)
Jakubec Petr (5%)
Tomanec Ondřej (5%)
Bakandritsos Aristides (10%)
Novotná Veronika (5%)
Zbořil Radek (5%)
Otyepka Michal (20%)
Source document Chemical Communications. Vol. 55, no. 8 (2019), pp. 1088-1091. - Cambridge : The Royal Society of Chemistry, 2019 Keywords chémia - chemistry chemické výskumy chemické procesy štiepenie grafén Form. Descr. články - journal articles Language English Country Great Britian Annotation We report successful grafting of alkynyl groups onto graphene via the Sonogashira reaction between fluorographene and terminal alkynes. Theoretical calculations revealed that fluorographene can efficiently bind and oxidize the palladium catalyst on electrophilic sites activated by fluorine atoms. This paves the way towards conductive and mechanically robust 3D covalent networks Public work category ADC No. of Archival Copy 47127 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika 
unrecognised
Title Variability of C-F bonds governs the formation of specific structural motifs in fluorinated graphenes Author info Rostislav Langer ... [et al.] Author Langer Rostislav (20%)
Co-authors Zaoralová Dagmar (20%)
Medveď Miroslav 1971- (15%) UMBFP08 - Katedra chémie
Banáš Pavel (10%)
Błoński Piotr (15%)
Otyepka Michal (20%)
Source document The Journal of Physical Chemistry C. Vol. 123, no. 45 (2019), pp. 27896-27903. - Washington : The American Chemical Society, 2019 Keywords grafén chémia - chemistry teória funkcionálu hustoty chemické procesy chemické výskumy Form. Descr. články - journal articles Language English Country United States of America Annotation Fluorinated graphenes (FGs) are key precursors for the synthesis of many graphene derivatives that significantly expand the application potential of graphene-based materials. The reactivity of FGs is rather surprising because the C-F bond is considered to be one of the strongest single covalent bonds in organic chemistry. However, its strength in FGs varies from 25.6 to 118.2 kcal/mol, depending on the configuration of fluorine ad-atoms. This variability is reflected in the formation of specific structural motifs and topological features during fluorination and defluorination processes; whereas defluorination favors formation of pi-conjugated chains, following the path of the weakest C-F bonds, fluorination is driven both by thermodynamics and stochasticity, leading to diverse fluorination patterns. Individual motifs vary in their electronic structures, having either metallic or semiconducting character. We rationalize the complex 2D chemistry of FGs using empirical rules that predict Public work category ADC No. of Archival Copy 47141 Catal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Database xpca - PUBLIKAČNÁ ČINNOSŤ References PERIODIKÁ-Súborný záznam periodika unrecognised