TY  - JOUR
AU  - Jakšić, Jovana
AU  - Milinković, Evgenija
AU  - Cvetanović, Katarina
AU  - Tokić-Vujošević, Zorana
AU  - Jovanov, Vladislav
AU  - Mitrović, Aleksandra
AU  - Maslak, Veselin
PY  - 2024
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/5389
AB  - In this study, we conducted a comprehensive investigation of newly synthesized fullerene derivatives developed for potential application in perovskite solar cells (PSCs). We explored three novel dihydrofuran-fused C60 fullerene derivatives (13, 14, and 15) that were specifically designed to enhance solubility and interaction with the substrate, fluorine-doped tin oxide (FTO). A comparative analysis was performed, with reference to the widely used phenyl-C61-butyric acid methyl ester (PCBM) and compound 12, from which 13, 14, and 15 are derived, to assess the impact of sugar units on materials properties. The synthesized compounds demonstrated significant solubility in common organic solvents, a critical factor in their potential application in wet-processed PSCs. Our investigation included electrochemical property analysis, thin film deposition, surface characterization, and electrochemical impedance spectroscopy (EIS). EIS measurements unveiled key insights into charge transfer properties at the electrode/electrolyte interface, making the compounds attractive candidates for electron transport layers (ETLs) in PSCs.
PB  - Royal Society of Chemistry
T2  - Physical Chemistry Chemical Physics
T1  - Exploring fullerene derivatives for optoelectronic applications: synthesis and characterization study
VL  - 26
IS  - 1
SP  - 517
EP  - 523
DO  - 10.1039/d3cp04322c
ER  - 

@article{
author = "Jakšić, Jovana and Milinković, Evgenija and Cvetanović, Katarina and Tokić-Vujošević, Zorana and Jovanov, Vladislav and Mitrović, Aleksandra and Maslak, Veselin",
year = "2024",
abstract = "In this study, we conducted a comprehensive investigation of newly synthesized fullerene derivatives developed for potential application in perovskite solar cells (PSCs). We explored three novel dihydrofuran-fused C60 fullerene derivatives (13, 14, and 15) that were specifically designed to enhance solubility and interaction with the substrate, fluorine-doped tin oxide (FTO). A comparative analysis was performed, with reference to the widely used phenyl-C61-butyric acid methyl ester (PCBM) and compound 12, from which 13, 14, and 15 are derived, to assess the impact of sugar units on materials properties. The synthesized compounds demonstrated significant solubility in common organic solvents, a critical factor in their potential application in wet-processed PSCs. Our investigation included electrochemical property analysis, thin film deposition, surface characterization, and electrochemical impedance spectroscopy (EIS). EIS measurements unveiled key insights into charge transfer properties at the electrode/electrolyte interface, making the compounds attractive candidates for electron transport layers (ETLs) in PSCs.",
publisher = "Royal Society of Chemistry",
journal = "Physical Chemistry Chemical Physics",
title = "Exploring fullerene derivatives for optoelectronic applications: synthesis and characterization study",
volume = "26",
number = "1",
pages = "517-523",
doi = "10.1039/d3cp04322c"
}

Jakšić, J., Milinković, E., Cvetanović, K., Tokić-Vujošević, Z., Jovanov, V., Mitrović, A.,& Maslak, V.. (2024). Exploring fullerene derivatives for optoelectronic applications: synthesis and characterization study. in Physical Chemistry Chemical Physics
Royal Society of Chemistry., 26(1), 517-523.
https://doi.org/10.1039/d3cp04322c

Jakšić J, Milinković E, Cvetanović K, Tokić-Vujošević Z, Jovanov V, Mitrović A, Maslak V. Exploring fullerene derivatives for optoelectronic applications: synthesis and characterization study. in Physical Chemistry Chemical Physics. 2024;26(1):517-523.
doi:10.1039/d3cp04322c .

Jakšić, Jovana, Milinković, Evgenija, Cvetanović, Katarina, Tokić-Vujošević, Zorana, Jovanov, Vladislav, Mitrović, Aleksandra, Maslak, Veselin, "Exploring fullerene derivatives for optoelectronic applications: synthesis and characterization study" in Physical Chemistry Chemical Physics, 26, no. 1 (2024):517-523,
https://doi.org/10.1039/d3cp04322c . .

TY  - JOUR
AU  - Jakšić, Jovana
AU  - Mitrović, Aleksandra
AU  - Tokić-Vujošević, Zorana
AU  - Milčić, Miloš
AU  - Maslak, Veselin
PY  - 2021
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3982
AB  - In this study, b-keto esters as readily available bio-based building blocks were used to decorate the C60 sphere. Generally, cyclopropanated fullerene derivatives are obtained by the standard Bingel–Hirsch procedure. Herein, omitting the iodine from the reaction mixture and adding TEMPO afforded dihydrofuran fused C60 fullerene derivatives. The mechanism of the reaction shifted from nucleophilic aliphatic substitution to oxidative [3 + 2] cycloaddition via fullerenyl cations as an intermediate. This mechanism is proposed based on a series of control experiments with radical scavengers. Therefore, dihydrofuran-fused C60 derivatives were selectively obtained in good yields and their structures were established based on UV-Vis, IR, NMR spectroscopy and mass spectrometry. The electrochemical properties of the synthesized compounds were investigated by cyclic voltammetry. DFT calculations were performed in order to investigate the difference in stability, electronic properties and p-electron delocalization between methano and furano fullerenes.
PB  - Royal Society of Chemistry
T2  - RSC Advances
T1  - Selective formation of dihydrofuran fused [60] fullerene derivatives by TEMPO mediated [3 + 2] cycloaddition of medium chain β-keto esters to C60
VL  - 11
IS  - 47
SP  - 29426
EP  - 29432
DO  - 10.1039/d1ra03944j
ER  - 

@article{
author = "Jakšić, Jovana and Mitrović, Aleksandra and Tokić-Vujošević, Zorana and Milčić, Miloš and Maslak, Veselin",
year = "2021",
abstract = "In this study, b-keto esters as readily available bio-based building blocks were used to decorate the C60 sphere. Generally, cyclopropanated fullerene derivatives are obtained by the standard Bingel–Hirsch procedure. Herein, omitting the iodine from the reaction mixture and adding TEMPO afforded dihydrofuran fused C60 fullerene derivatives. The mechanism of the reaction shifted from nucleophilic aliphatic substitution to oxidative [3 + 2] cycloaddition via fullerenyl cations as an intermediate. This mechanism is proposed based on a series of control experiments with radical scavengers. Therefore, dihydrofuran-fused C60 derivatives were selectively obtained in good yields and their structures were established based on UV-Vis, IR, NMR spectroscopy and mass spectrometry. The electrochemical properties of the synthesized compounds were investigated by cyclic voltammetry. DFT calculations were performed in order to investigate the difference in stability, electronic properties and p-electron delocalization between methano and furano fullerenes.",
publisher = "Royal Society of Chemistry",
journal = "RSC Advances",
title = "Selective formation of dihydrofuran fused [60] fullerene derivatives by TEMPO mediated [3 + 2] cycloaddition of medium chain β-keto esters to C60",
volume = "11",
number = "47",
pages = "29426-29432",
doi = "10.1039/d1ra03944j"
}

Jakšić, J., Mitrović, A., Tokić-Vujošević, Z., Milčić, M.,& Maslak, V.. (2021). Selective formation of dihydrofuran fused [60] fullerene derivatives by TEMPO mediated [3 + 2] cycloaddition of medium chain β-keto esters to C60. in RSC Advances
Royal Society of Chemistry., 11(47), 29426-29432.
https://doi.org/10.1039/d1ra03944j

Jakšić J, Mitrović A, Tokić-Vujošević Z, Milčić M, Maslak V. Selective formation of dihydrofuran fused [60] fullerene derivatives by TEMPO mediated [3 + 2] cycloaddition of medium chain β-keto esters to C60. in RSC Advances. 2021;11(47):29426-29432.
doi:10.1039/d1ra03944j .

Jakšić, Jovana, Mitrović, Aleksandra, Tokić-Vujošević, Zorana, Milčić, Miloš, Maslak, Veselin, "Selective formation of dihydrofuran fused [60] fullerene derivatives by TEMPO mediated [3 + 2] cycloaddition of medium chain β-keto esters to C60" in RSC Advances, 11, no. 47 (2021):29426-29432,
https://doi.org/10.1039/d1ra03944j . .

TY  - JOUR
AU  - Jakšić, Jovana
AU  - Ostojić, Sanja
AU  - Micić, Darko
AU  - Tokić-Vujošević, Zorana
AU  - Milovanović, Jelena
AU  - Karkalić, Radovan
AU  - O'Connor, Kevin E.
AU  - Kenny, Shane T.
AU  - Casey, William
AU  - Nikodinović-Runić, Jasmina
AU  - Maslak, Veselin
PY  - 2020
UR  - https://farfar.pharmacy.bg.ac.rs/handle/123456789/3534
AB  - In the present work, we describe the chemical synthesis of 3-HFAs as prominent derivatives of fatty acids and assess if they could be applied as phase change materials (PCM). In addition, 3-HFAs were obtained by depolymerization of a bacterial biopolymeric material, polyhydroxyalkanoate. Thermal properties of 3-hydoxyoctanoic, decanoic, and dodecanoic acids are reported for the first time. These materials showed the potential to be applied as PCM in temperature range from 33°C to 66°C. In order to expand the temperature range for application of 3-HFAs as PCM, eutectic mass ratios of three kinds of binary mixtures of 3-HFAs were calculated, and their properties were predicted using the Schröder-van Laar equation. Thermal properties of these mixtures were validated by differential scanning calorimetry (DSC) analysis. These results showed that eutectics considerably expanded the scope of applications of 3-HFAs as PCMs. 3-HFAs originating from biotechnologically obtained polyhydroxyalkanoates also showed potential to be applied in development of PCMs.
PB  - John Wiley & Sons, Ltd.
T2  - International Journal of Energy Research
T1  - Thermal properties of 3-hydroxy fatty acids and their binary mixtures as phase change energy storage materials
VL  - 44
IS  - 2
SP  - 1294
EP  - 1302
DO  - 10.1002/er.4934
ER  - 

@article{
author = "Jakšić, Jovana and Ostojić, Sanja and Micić, Darko and Tokić-Vujošević, Zorana and Milovanović, Jelena and Karkalić, Radovan and O'Connor, Kevin E. and Kenny, Shane T. and Casey, William and Nikodinović-Runić, Jasmina and Maslak, Veselin",
year = "2020",
abstract = "In the present work, we describe the chemical synthesis of 3-HFAs as prominent derivatives of fatty acids and assess if they could be applied as phase change materials (PCM). In addition, 3-HFAs were obtained by depolymerization of a bacterial biopolymeric material, polyhydroxyalkanoate. Thermal properties of 3-hydoxyoctanoic, decanoic, and dodecanoic acids are reported for the first time. These materials showed the potential to be applied as PCM in temperature range from 33°C to 66°C. In order to expand the temperature range for application of 3-HFAs as PCM, eutectic mass ratios of three kinds of binary mixtures of 3-HFAs were calculated, and their properties were predicted using the Schröder-van Laar equation. Thermal properties of these mixtures were validated by differential scanning calorimetry (DSC) analysis. These results showed that eutectics considerably expanded the scope of applications of 3-HFAs as PCMs. 3-HFAs originating from biotechnologically obtained polyhydroxyalkanoates also showed potential to be applied in development of PCMs.",
publisher = "John Wiley & Sons, Ltd.",
journal = "International Journal of Energy Research",
title = "Thermal properties of 3-hydroxy fatty acids and their binary mixtures as phase change energy storage materials",
volume = "44",
number = "2",
pages = "1294-1302",
doi = "10.1002/er.4934"
}

Jakšić, J., Ostojić, S., Micić, D., Tokić-Vujošević, Z., Milovanović, J., Karkalić, R., O'Connor, K. E., Kenny, S. T., Casey, W., Nikodinović-Runić, J.,& Maslak, V.. (2020). Thermal properties of 3-hydroxy fatty acids and their binary mixtures as phase change energy storage materials. in International Journal of Energy Research
John Wiley & Sons, Ltd.., 44(2), 1294-1302.
https://doi.org/10.1002/er.4934

Jakšić J, Ostojić S, Micić D, Tokić-Vujošević Z, Milovanović J, Karkalić R, O'Connor KE, Kenny ST, Casey W, Nikodinović-Runić J, Maslak V. Thermal properties of 3-hydroxy fatty acids and their binary mixtures as phase change energy storage materials. in International Journal of Energy Research. 2020;44(2):1294-1302.
doi:10.1002/er.4934 .

Jakšić, Jovana, Ostojić, Sanja, Micić, Darko, Tokić-Vujošević, Zorana, Milovanović, Jelena, Karkalić, Radovan, O'Connor, Kevin E., Kenny, Shane T., Casey, William, Nikodinović-Runić, Jasmina, Maslak, Veselin, "Thermal properties of 3-hydroxy fatty acids and their binary mixtures as phase change energy storage materials" in International Journal of Energy Research, 44, no. 2 (2020):1294-1302,
https://doi.org/10.1002/er.4934 . .