Browsing Τμήμα Χημείας / Department of Chemistry by Author "Stylianou, Marios"
Now showing items 1-12 of 12
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Aerial Oxidation of a VIV-Iminopyridine Hydroquinonate Complex: A Trap for the VIV-Semiquinonate Radical Intermediate
Stylianou, Marios; Drouza, Chryssoula; Giapintzakis, Ioannis; Athanasopoulos, Georgios I.; Keramidas, Anastasios D. (2015)The reaction of 2,5-bis[N,N′-bis(2-pyridyl-aminomethyl)aminomethyl]-p-hydroquinone (H2bpymah) with VO2+ salts in acetonitrile or water at a low pH (2.2-3.5) results in the isolation of [{VIV(O)(Cl)}2(μ-bpymah)], the ...
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Article
Molybdenum(VI) coordination chemistry of the N,N-disubstituted bis(hydroxylamido)-1,3,5-triazine ligand, H2bihyat. Water-assisted activation of the MoVI=O bond and reversible dimerization of cis-[MoVIO2(bihyat)] to [MoVI2O 4(bihyat)2(H2O)2]
Stylianou, Marios; Nikolakis, Vladimiros A.; Chilas, G. I.; Jakusch, T.; Vaimakis, T.; Kiss, Tamás; Sigalas, Michael P.; Keramidas, Anastasios D.; Kabanos, Themistoklis A. (2012)Reaction of the N,N-disubstituted bis(hydroxylamino) ligand 2,6-bis[hydroxy(methyl)amino]-4-morpholino-1,3,5-triazine (H2bihyat) with cis-[MoVIO2(acac)2] in tetrahydrofuran resulted in isolation of the mononuclear compound ...
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NMR characterization and dynamics of vanadium(V) complexes with tripod (hydroquinonate/phenolate) iminodiacetate ligands in aqueous solution
Drouza, Chryssoula; Stylianou, Marios; Keramidas, Anastasios D. (2009)Reaction of NH4VO3 with (phenolate/hydroquinonate) iminodiacetate tripod ligands in aqueous solution in the pH range 7-8 results in the isolation of three new dioxido vanadium(V) complexes, one dinuclear (NH4)4{(VVO)2[μ- ...
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Oxovanadium(IV)-sulfite compounds: Synthesis and structural and physical studies
Chilas, G. I.; Miras, Haralampos N.; Manos, Manolis J.; Woollins, J. D.; Slawin, A. M. Z.; Stylianou, Marios; Keramidas, Anastasios D.; Kabanos, Themistoklis A. (2005)Reaction of VIVOCl2 in strongly acidic aqueous solution with either (NH4)2SO3 or Na 2SO3 and Bu4NBr at ∼70 °C in the pH range 2.5-4.5 gives the clusters (NH4)2{[V 4IV)(μ4-O)2(μ3-OH) 2](VIVO)2(μ3-SO3) 4O4(H2O)2} and (n-Bu ...
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PH-potentiometric investigation towards chelating tendencies of p -hydroquinone and phenol iminodiacetate copper(II) complexes
Stylianou, Marios; Keramidas, Anastasios D.; Drouza, Chryssoula (2010)Copper ions in the active sites of several proteins/enzymes interact with phenols and quinones, and this interaction is associated to the reactivity of the enzymes. In this study the speciation of the Cu 2+ with iminodiacetic ...
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Polynuclear cobalt(II/III) sulfites: Synthesis, structure, and magnetic properties of the octanuclear cluster (NH4)11(Li⊂ [Co4IICo4III(SO3) 16(NH3)8])·10H2O encapsulating a lithium cation
Chilas, G. I.; Stylianou, Marios; Kubicki, Maciej; Vaimakis, T.; Kögerler, P.; Keramidas, Anastasios D.; Kabanos, Themistoklis A. (2008)Partial oxidation of an aqueous solution of CoIICl 2·6H2O with (NH4)6[Mo 7VIO24]·4H2O in the presence of (NH4)2SO3·H2O and LiCl, at pH ≈ 5.3, leads to isolation of the octanuclear cluster (NH 4)11(Li⊂[Co4IICo 4III(SO3)16(NH3) ...
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Structural and electron paramagnetic resonance (EPR) characterization of novel vanadium(V/IV) complexes with hydroquinonate-iminodiacetate ligands exhibiting "noninnocent" activity
Drouza, Chryssoula; Stylianou, Marios; Papaphilippou, Petri Ch; Keramidas, Anastasios D. (2013)Reaction of KVO3 with 2-[N,N′-(carboxymethyl)aminomethyl]-5-methylhydroquinone (H4mecah) in aqueous solution at pH 8.2 results in the isolation of mononuclear K2[VV(O)2{Hmecah(-3)}]·2H2O complex. On the other hand, reaction ...
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Article
Synthesis of new photosensitive H2BBQ2+[ZnCl4]2−/[(ZnCl)2(μ-BBH)] complexes, through selective oxidation of H2O to H2O2
Stylianou, Marios; Hadjiadamou, I.; Drouza, Chryssoula; Hayes, Sophia C.; Lariou, E.; Tantis, I.; Lianos, P.; Tsipis, Athanassios C.; Keramidas, Anastasios D. (2017)A new two-electron photosensitizer, H2BBQ2+[ZnCl4]2−/[(ZnCl)2(μ-BBH)] (BBQ stands for 2,5-bis[bis(pyridin-2-ylmethyl)amino]-1,4-quinone and BBH stands for 2,5-bis[bis(pyridin-2-ylmethyl)amino]-1,4-hydroquinone), has been ...
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Synthesis, crystal structure and luminescence of novel Eu3+, Sm3+ and Gd3+ complexes of 1,3,5- and 1,2,4-triazines
Panayiotidou, L.; Stylianou, Marios; Arabatzis, N. B.; Drouza, Chryssoula; Lianos, P.; Stathatos, Elias; Keramidas, Anastasios D. (2013)New Eu3+, Sm3+ and Gd3+ complexes of triazine ligands 2,4,6-tri(2-pyridyl)-1,3,5-triazine, 3,5,6-tri(2-pyridyl)-1,2, 4-triazine and 5,6-diphenyl-3-(2-pyridyl)-1,2,4-triazine were synthesized. The structure of five of them ...
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Synthesis, solution, and structural characterization of tetrahydrofuranyl-2,2-bisphosphonic acid disodium salt
Keramidas, Anastasios D.; Maltezou, E.; Stylianou, Marios; Roy, S.; Drouza, Chryssoula (2010)Bisphosphonates are biologically relevant therapeutics for bone disorders and cancer. Reaction of γ-chlorobutyric acid, phosphorus acid, and phosphorus trichloride without the use of solvent gave the tetrahydrofuranyl-2, ...
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Synthesis, structure, magnetic properties and aqueous solution characterization of p-hydroquinone and phenol iminodiacetate copper(ii) complexes
Stylianou, Marios; Drouza, Chryssoula; Viskadourakis, Zacharias A.; Giapintzakis, Ioannis; Keramidas, Anastasios D. (2008)The reaction of Cu2+ acetate monohydrate with 2-[N,N′-bis(carboxymethyl)aminomethyl]-4-carboxyphenol (H 4cacp), 2-[N,N-bis(carboxymethyl)aminomethyl]hydroquinone (H 4cah) and the dinucleating 2,5-bis[N,N-bis(carboxymethy ...
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Vanadium(V) compounds with the bis-(hydroxylamino)-1,3,5-triazine ligand, H2bihyat: Synthetic, structural, and physical studies of [V 2VO3(bihyat)2] and of the enhanced hydrolytic stability species cis-[VVO2(bihyat)] -
Nikolakis, Vladimiros A.; Tsalavoutis, John T.; Stylianou, Marios; Evgeniou, E.; Jakusch, T.; Melman, A.; Sigalas, Michael P.; Kiss, Tamás; Keramidas, Anastasios D.; Kabanos, Themistoklis A. (2008)Reaction of the ligand 2,6-bis[hydroxy(methyl)amino]-4-morpholino-1,3,5- triazine (H2bihyat) with NaVVO3 in aqueous solution followed by addition of either Ph4PCl or C(NH 2)3Cl, respectively, gave the mononuclear vanadium(V) ...