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Structural insights into complexes and polyoxomolybdate salts derived from asymmetric carbohydrazones


Topić, Edi; Rubčić, Mirta; Pisk, Jana; Vrdoljak, Višnja
Structural insights into complexes and polyoxomolybdate salts derived from asymmetric carbohydrazones // 26. hrvatski skup kemičara i kemijskih inženjera, Knjiga sažetaka / Galić, Nives ; Rogošić, Marko (ur.).
Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa, 2019. str. 45-45 (predavanje, domaća recenzija, sažetak, znanstveni)


Naslov
Structural insights into complexes and polyoxomolybdate salts derived from asymmetric carbohydrazones

Autori
Topić, Edi ; Rubčić, Mirta ; Pisk, Jana ; Vrdoljak, Višnja

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
26. hrvatski skup kemičara i kemijskih inženjera, Knjiga sažetaka / Galić, Nives ; Rogošić, Marko - Zagreb : Hrvatsko društvo kemijskih inženjera i tehnologa, 2019, 45-45

Skup
26. hrvatski skup kemičara i kemijskih inženjera

Mjesto i datum
Šibenik, Hrvatska, 09-12.04.2019

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Domaća recenzija

Ključne riječi
asymmetric carbohydrazones, dioxomolybdenum(VI) complexes, polyoxomolybdates

Sažetak
Hydrazones, as structurally adaptable and functionally diverse systems, assume a number of practical roles as e.g. cytotoxic agents [1] or anion receptors [2], while their Mo(VI) complexes have demonstrated their value as effective epoxidation (pre)catalysts [3]. In this wide class of compounds, carbohydrazones have a special place, owing to the structural versatility of their mono‐ and disubstituted derivatives [4]. The possibility of tailoring them in asymmetric fashion, creating in return systems with two different subunits, varying in chelating behaviour and acid‐base properties, offers a versatile platform for testing them as metalloorganic and supramolecular building blocks. To investigate carbohydrazones in this context, multifunctional asymmetric compounds bearing hydroxyaryl and pyridyl moieties were derived and tested for their chelating and anion receptor behaviour. Dioxomolybdenum(VI) complexes and carbohydrazonium polyoxomolybdates (POMs) were prepared by crystallization from solution and by mechanochemical synthesis. To explore alternative routes towards corresponding POM salts, dioxomolybdenum(IV) complex decomposition and salt metathesis reactions were explored as well. The results evidence that different reaction conditions, in particular solvent choice and water content, along with the starting carbohydrazone structure affect the reaction outcome and the structure of the products obtained. Whereas dioxomolybdenum(VI) complexes have their structures determined by strongly chelating hydroxyaryl subunit, structures of POM salts are shaped by delicate competition between CONH∙∙∙OPOM, NH+py∙∙∙OPOM and OHar∙∙∙OPOM intermolecular hydrogen bonds (Figure 1).

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2016-06-4221 - Metalosupramolekulske strukture i anorgansko-organski poliokometalatni hibridi (Višnja Vrdoljak, HRZZ)

Ustanove
Prirodoslovno-matematički fakultet, Zagreb

Profili:

Avatar Url Edi Topić (autor)

Avatar Url Mirta Rubčić (autor)

Avatar Url Jana Pisk (autor)

Avatar Url Višnja Vrdoljak (autor)

Citiraj ovu publikaciju

Topić, Edi; Rubčić, Mirta; Pisk, Jana; Vrdoljak, Višnja
Structural insights into complexes and polyoxomolybdate salts derived from asymmetric carbohydrazones // 26. hrvatski skup kemičara i kemijskih inženjera, Knjiga sažetaka / Galić, Nives ; Rogošić, Marko (ur.).
Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa, 2019. str. 45-45 (predavanje, domaća recenzija, sažetak, znanstveni)
Topić, E., Rubčić, M., Pisk, J. & Vrdoljak, V. (2019) Structural insights into complexes and polyoxomolybdate salts derived from asymmetric carbohydrazones. U: Galić, N. & Rogošić, M. (ur.)26. hrvatski skup kemičara i kemijskih inženjera, Knjiga sažetaka.
@article{article, year = {2019}, pages = {45-45}, keywords = {asymmetric carbohydrazones, dioxomolybdenum(VI) complexes, polyoxomolybdates}, title = {Structural insights into complexes and polyoxomolybdate salts derived from asymmetric carbohydrazones}, keyword = {asymmetric carbohydrazones, dioxomolybdenum(VI) complexes, polyoxomolybdates}, publisher = {Hrvatsko dru\v{s}tvo kemijskih in\v{z}enjera i tehnologa}, publisherplace = {\v{S}ibenik, Hrvatska} }