Browsing by Author "Ozturk, Gulsen"
Now showing items 1-8 of 8
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Alkali catalyzed transesterification of safflower seed oil assisted by microwave irradiation
Duz, M. Zahir; Saydut, Abdurrahman; Ozturk, Gulsen (Elsevier, 2011)The safflower (Carthamus tinctorius L) oil was extracted from the seeds of the safflower that grows in Diyarbakir, SE Anatolia of Turkey. Biodiesel has been prepared from safflower seed by transesterification of the crude ... -
Amide-based tripodal receptors for selective anion recognition
Ozturk, Gulsen; Colak, Mehmet; Togrul, Mahmut (Springer, 2010)In order to improve efficiency and reduce waste production; the microwaves offer mild methods to prepare amides based neutral tripodals receptors directly from non activated carboxylic acids and amines in the absences of ... -
Comparison of microwave and conventional digestion of copper ores and determination of heavy metals by ICP-AES
Akba, Osman; Ozturk, Gulsen; Biricik, Nermin; Gumgum, Bahattin (Asian Journal Of Chemistry, 2006)This paper summarizes the results obtained in applying conventional and microwave digestion techniques to Maden and Hazro copper materials for subsequent analysis by inductively coupled plasma (ICP-AES). -
A facile synthesis of amide-based receptors under microwave conditions: investigation of their anion recognition properties by experimental and computational tools
Ozturk, Gulsen; Subari, Salih; Seker, Sevil; Togrul, Mahmut; Kocakay, Safak Ozhan; Ercan, Selami; Pirinccioglu, Necmettin (Springer, 2017)Two novel amide-based receptors were synthesized under microwave irradiation. Their chemical structures were confirmed by IR, H-1 NMR, C-13 NMR, and elemental analysis. The binding properties of these amide-based receptors ... -
Microwave assisted transesterification of maize (Zea mays L.) oil as a biodiesel fuel
Ozturk, Gulsen; Kafadar, Aylin Beycar; Duz, M. Zahir; Saydut, Abdurrahman; Hamamci, Candan (Sage Publications Inc, 2010)Maize (Zea mays L.) oil is a highly valuable agricultural commodity for the Turkey. Transesterified maize oil has the global better properties because it has the greater monounsaturated content. Biodiesel has been prepared ... -
Microwave-assisted synthesis of novel amide based chiral tripodal receptors for recognition of cation and anion sensors
Azizoglu, Sevil S.; Kaplan, Seref; Ozturk, Gulsen; Turgut, Yilmaz; Togrul, Mahmut (Arkat Usa Inc, 2016)Five novel amide based chiral tripodal receptors were synthesized under microwave irradiation by reacting nitrilotriacetic acid with chiral amino alcohols in a solvent-free medium with high yields (>= 90%). The recognition ... -
Modification of electrical properties of the Au/1,1? dimethyl ferrocenecarboxylate/n-Si Schottky diode
Aydin, M. Enver; Yakuphanoglu, Fahrettin; Ozturk, Gulsen (Elsevier Science Sa, 2010)The electrical and interface state density properties of the Au/1,1' dimethyl ferrocenecarboxylate (DMFC)/n-Si structure have been investigated by current-voltage, capacitance-voltage and conductance-frequency methods. The ... -
Synthesis of ferrocenyl Schiff bases under solvent-free conditions using microwave irradiation
Ozturk, Gulsen; Petit, Alain; Kouklovsky, Cyrille (Taylor & Francis Inc, 2008)Ferrocenyl imines 3a-f were synthesized using solvent-free methods by mixing ferrocene carbaldehyde 1 with amines 2a-f under microwave irradiation. The imines were obtained in good yield in short reaction times.
