Browsing by Author "Sigalas, Michael P."
Now showing items 1-9 of 9
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Interaction of Chromium(III) with a N, N ′-disubstituted hydroxylamine-(diamido) ligand: A combined experimental and theoretical study
Tziouris, Petros A.; Tsiafoulis, Constantinos G.; Vlasiou, Manolis; Miras, Haralampos N.; Sigalas, Michael P.; Keramidas, Anastasios D.; Kabanos, Themistoklis A. (2014)Reaction of hydroxylamine hydrochloride with prop-2-enamide in dichloromethane in the presence of triethylamine resulted in the isolation of the N,N′-disubstituted hydroxylamine-(diamido) ligand, 3,3′-(hydroxyazanediyl)d ...
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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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Article
Monomeric compounds containing the cis-[V(=O)(OH)]+ core
Tolis, Evangelos I.; Manos, Manolis J.; Tasiopoulos, Anastasios J.; Raptopoulou, Catherine P.; Terzis, Aris; Sigalas, Michael P.; Deligiannakis, Yiannis G.; Kabanos, Themistoklis A. (2002)HYSCORE with a vanadium core: Examples of monomeric metal compounds containing the cis-[M(=O)(OH)]n+ unit, namely the VIVO2+ complexes [VIVO(OH)(bipy)2]BF4 (1
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A new class of ferromagnetically-coupled mixed valence vanadium(IV/V) polyoxometalates
Manos, Manolis J.; Tasiopoulos, Anastasios J.; Tolis, Evangelos I.; Lalioti, N.; Woollins, J. D.; Slawin, A. M. Z.; Sigalas, Michael P.; Kabanos, Themistoklis A. (2003)Reaction of [VVIOCl2(thf)2] with a bidentate nitrogen-donor ligand (L: phen = 1,10-phenanthroline, 5-mephen = 5-methyl-1,10-phenanthroline, bipy = 2,2′-bipyridine, 5,5′-me2bipy = 5,5′-dimethyl-2,2′-bipy) in methyl alcohol, ...
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NMR and theoretical investigations on the structures and dynamics of octahedral bis(chelate)dichloro VIII compounds isolated by an unusual reduction of non-oxo VIV species
Rikkou, Maria P.; Manos, Manolis J.; Tolis, Evangelos I.; Sigalas, Michael P.; Kabanos, Themistoklis A.; Keramidas, Anastasios D. (2003)Reaction of the non-oxo VIV species [VIVCl2(LOO)2] [LOO = acetylacetonate (acac-) or benzoylacetonate (bzac-)] with a chelate nitrogen-donor ligand LNN in acetonitrile leads to the reduction of VIV to VIII and the formation ...
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Article
p-Hydroquinone-metal compounds: Synthesis and crystal structure of two novel VV-p-hydroquinonate and VIV-p-semiquinonate species
Drouza, Chryssoula; Tolis, V.; Gramlich, V.; Raptopoulou, Catherine P.; Terzis, Aris; Sigalas, Michael P.; Kabanos, Themistoklis A.; Keramidas, Anastasios D. (2002)Reaction of the p-hydroquinone derivative H2Na4bicah·4H2O with either VIVOSO4·3H2O and NaVVO3 in equivalent quantities or with NaVVO3 yields the tetranuclear VIVO2+ macrocycle-semiquinonate compound Na6{(VIVO)4-(μ2-O) ...
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Polyoxomolybdenum(V/VI)-sulfite compounds: Synthesis, structural, and physical studies
Kapakoglou, N. I.; Panagiotis, B. I.; Kazianis, S. E.; Kosmidis, C. E.; Drouza, Chryssoula; Manos, Manolis J.; Sigalas, Michael P.; Keramidas, Anastasios D.; Kabanos, Themistoklis A. (2007)Reaction of Na2MoVIO4·2H 2O with (NH4)2SO3 in the mixed-solvent system H2O/CH3CN (pH = 5) resulted in the formation of the tetranuclear cluster (NH4)4[Mo 4VISO16]·H2O (1), while the same reaction in acidic aqueous solution ...
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Article
Synthesis, structure, and solution dynamics of UO2 2+-hydroxy ketone compounds [UO2(ma)2(H 2O)] and [UO2(dpp)(Hdpp)2(H2O)] ClO4 [ma = 3-hydroxy-2-methyl-4-pyrone, Hdpp = 3-hydroxy-1,2- dimethyl-4(1H)-pyridone]
Drouza, Chryssoula; Gramlich, V.; Sigalas, Michael P.; Pashalidis, Ioannis; Keramidas, Anastasios D. (2004)293(2) K) are as follows: (1) monoclinic space group C2/c, a = 14.561(7) Å, b = 14.871(9) Å, c = 7.250(4) Å, β = 95.40(4)°, Z = 4
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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) ...