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Názov Variability of C-F bonds governs the formation of specific structural motifs in fluorinated graphenes Aut.údaje Rostislav Langer ... [et al.] Autor Langer Rostislav (20%)
Spoluautori Zaoralová Dagmar (20%)
Medveď Miroslav 1971- (15%) UMBFP08 - Katedra chémie
Banáš Pavel (10%)
Błoński Piotr (15%)
Otyepka Michal (20%)
Zdroj.dok. The Journal of Physical Chemistry C. Vol. 123, no. 45 (2019), pp. 27896-27903. - Washington : The American Chemical Society, 2019 Kľúč.slová grafén chémia - chemistry teória funkcionálu hustoty chemické procesy chemické výskumy Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Spojené štáty Anotácia 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 Kategória publikačnej činnosti ADC Číslo archívnej kópie 47141 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika Názov Alkynylation of graphene via the Sonogashira C-C cross-coupling reaction on fluorographene Aut.údaje Demetrios D. Chronopoulos ... [et al.] Autor Chronopoulos Demetrios D. (20%)
Spoluautori 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%)
Zdroj.dok. Chemical Communications. Vol. 55, no. 8 (2019), pp. 1088-1091. - Cambridge : The Royal Society of Chemistry, 2019 Kľúč.slová chémia - chemistry chemické výskumy chemické procesy štiepenie grafén Form.deskr. články - journal articles Jazyk dok. angličtina Krajina Veľká Británia Anotácia 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 Kategória publikačnej činnosti ADC Číslo archívnej kópie 47127 Katal.org. BB301 - Univerzitná knižnica Univerzity Mateja Bela v Banskej Bystrici Báza dát xpca - PUBLIKAČNÁ ČINNOSŤ Odkazy PERIODIKÁ-Súborný záznam periodika