Zobrazeno 1 - 10
of 116
pro vyhledávání: '"Vassilios Nastopoulos"'
Autor:
Maria Charalambous, Eleni E. Moushi, Tu N. Nguyen, Constantina Papatriantafyllopoulou, Vassilios Nastopoulos, George Christou, Anastasios J. Tasiopoulos
Publikováno v:
Frontiers in Chemistry, Vol 7 (2019)
We report the synthesis, crystal structures and magnetic properties of the giant heterometallic [Mn36Ni4]2−/0 (compounds 1, 2)/[Mn32Co8] (compound 3) “loops-of-loops-and-supertetrahedra” molecular aggregates and of a [Mn2Ni6]2+ compound (cation
Externí odkaz:
https://doaj.org/article/2a14a8db6d864ad3a4a79d53a8c0f262
Autor:
Spyros P. Perlepes, Antonis Anastassiades, Adeline Fournet, Vassilios Nastopoulos, Michael Schulze, Rahul Kumar, Wolfgang Wernsdorfer, Constantina Papatriantafyllopoulou, George Christou, Anastasios J. Tasiopoulos, Katerina Skordi
Publikováno v:
Chemical communications (Cambridge, England). 57(93)
Three new nanosized clusters and single molecule magnets ([Mn24] and [Mn23]) with uncommon supertetrahedral T4 – like Mn/O cores prepared from the combination of pdH2 with (py)2CO in Mn cluster chemistry are reported.
Autor:
Anastasios J. Tasiopoulos, Sayak Das Gupta, Constantinos G. Efthymiou, Ioannis Mylonas-Margaritis, Vassilios Nastopoulos, George Christou, Spyros P. Perlepes, Constantina Papatriantafyllopoulou
Publikováno v:
Polyhedron. 171:330-337
The initial employment of methyl 2-pyridyl ketoxime, (py)C(Me)NOH, in mixed metal Ni/Mn cluster chemistry, provided access to complexes [NiII2MnIII{(py)C(Me)NO}6](ClO4) (1) and [NiII2MnIII2{(py)C(Me)NO}6(OMe)2(MeOH)2](ClO4)2 (2) that display a linear
Autor:
Konstantina A. Kounavi, Manolis J. Manos, Anastasios J. Tasiopoulos, Spyros P. Perlepes, Vassilios Nastopoulos
Publikováno v:
Bioinorganic Chemistry and Applications, Vol 2010 (2010)
Two new complexes, [Zn(O2CPh)2(L)2]⋅2MeOH (𝟏⋅2MeOH) and [Ni2(O2CPh))4(L)2]⋅2MeCN (𝟐⋅2MeCN), have been synthesized and characterized by X-ray analysis in the course of an ongoing investigation of the MII/X−/L[MII=Co,Ni,Cu,Zn; X−=Cl
Externí odkaz:
https://doaj.org/article/32332faf26044813ac87d7f0fafcb466
Publikováno v:
Bioinorganic Chemistry and Applications, Vol 2010 (2010)
Two new compounds that consist of the linear trinuclear manganese(II) cation [Mn3(O2CMe)4(py)8]2+ cocrystallizing with different counteranions (I3-, [1]; ClO4-, [2]) are reported. Complex 1 was prepared from the reaction of [Mn(O2CMe)2]⋅4H2O with I
Externí odkaz:
https://doaj.org/article/6bd97e848c654313a5c3c6227c4b3227
Autor:
Constantinos G. Efthymiou, Vassilios Nastopoulos, Catherine Raptopoulou, Anastasios Tasiopoulos, Spyros P. Perlepes, Constantina Papatriantafyllopoulou
Publikováno v:
Bioinorganic Chemistry and Applications, Vol 2010 (2010)
The reactions of methyl(2-pyridyl)ketone oxime, (py)C(Me)NOH, with manganese(II) sulfate monohydrate have been investigated. The reaction between equimolar quantities of MnSO4⋅H2O and (py)C(Me)NOH in H2O lead to the dinuclear complex [Mn2(SO4)2{(py
Externí odkaz:
https://doaj.org/article/d2db78be363540edbac6c8a32801a20b
Autor:
Stavros E. Bariamis, George E. Magoulas, Constantinos M. Athanassopoulos, Dionissios Papaioannou, Manolis J. Manos, Vassilios Nastopoulos
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 10, Pp o2580-o2580 (2009)
The title compound, C25H20O2, was synthesized by a Wittig reaction between triphenyl[1-(pyren-1-yl)ethyl]phosphonium bromide and ethyl (2E,4E)-3-methyl-6-oxohexa-2,4-dienoate, in the presence of n-butyl lithium, followed by saponification. It was obt
Externí odkaz:
https://doaj.org/article/90cdee0413a94c6286f48a94da42ab18
Publikováno v:
Acta Crystallographica Section E, Vol 64, Iss 10, Pp o1978-o1978 (2008)
The title compound, C19H19NO2, obtained as an almost equimolar mixture (as shown by 1H NMR) with the E isomer through a Wittig reaction between 4-amino-9H-fluoren-9-one and the stabilized ylide Ph3P=CHCO2C(CH3)3, was obtained pure in the Z configurat
Externí odkaz:
https://doaj.org/article/b1cbe57c61b04a2e8107807df5342b9b
Autor:
Alexandros A, Kitos, Constantina, Papatriantafyllopoulou, Anastasios J, Tasiopoulos, Spyros P, Perlepes, Albert, Escuer, Vassilios, Nastopoulos
Publikováno v:
Dalton transactions (Cambridge, England : 2003). 46(10)
The initial use of ligands 2'-hydroxyacetophenone (HL
Publikováno v:
Zeitschrift für anorganische und allgemeine Chemie. 640:1654-1657
The complex (Me2AsS2)3Ga (1) attracted water molecules that slowly and completely hydrolyzed it. The product was the dinuclear gallium compound (Me2AsS2)2Ga–S–Ga(S2AsMe2)2 (2) as 2·0.75H2O, which was structurally characterized with X-ray crystal