Browsing by Subject "manganese"

Article

A 1-D coordination polymer based on a Mn40 octagonal super-structure

Manoli, Maria; Inglis, R.; Manos, Manolis J.; Papaefstathìou, Giannis S.; Brechin, E. K.; Tasiopoulos, Anastasios J. (2013)

A 1-D coordination polymer, constructed using a combination of diols and phenolic oximes, contains a novel [Mn9] sub-unit, a nanosized [Mn40] octagonal super-structure and a [Mn21] repeating unit. © 2013 The Royal Society ...

Article

Competition studies of L1-deferiprone with copper and iron. Possible implications on efficacy, toxicity and new therapeutic applications

Pashalidis, Ioannis; Kontoghiorghes, G. J. (2000)

Article

Discrete and encapsulated molecular grids: Homometallic Mn15 and heterometallic Mn24Ni2 aggregates

Charalambous, Maria; Zartilas, Sotiris M.; Moushi, Eleni E.; Papatriantafyllopoulou, Constantina; Manos, Manolis J.; Stamatatos, Theocharis C.; Mukherjee, S.; Nastopoulos, Vassilios; Christou, George; Tasiopoulos, Anastasios J. (2014)

Two molecular grid-like clusters are reported, one is a discrete [3 × 5] grid and the other a [3 × 4] grid within a Mn12Ni 2 loop. Both Mn24Ni2 and Mn15 aggregates display novel and aesthetically pleasing structures with ...

Article

High nuclearity single-molecule magnets: A mixed-valence Mn26 cluster containing the di-2-pyridylketone diolate dianion

Stamatatos, Theocharis C.; Nastopoulos, Vassilios; Tasiopoulos, Anastasios J.; Moushi, Eleni E.; Wernsdorfer, W.; Christou, George; Perlepes, Spyros P. (2008)

The employment of the dianion (dpkd2-) of the gem-diol form of di-2-pyridylketone (dpk) as a tetradentate chelate in manganese chemistry is reported, and the synthesis, crystal structure, and magnetochemical characterization ...

Article

Magnetic "Molecular Oligomers" Based on Decametallic Supertetrahedra: A Giant Mn49 Cuboctahedron and its Mn25Na4 Fragment

Manoli, Maria; Alexandrou, Sofia; Pham, L.; Lorusso, G.; Wernsdorfer, W.; Evangelisti, M.; Christou, George; Tasiopoulos, Anastasios J. (2016)

Two nanosized Mn49 and Mn25Na4 clusters based on analogues of the high-spin (S=22) [MnIII 6MnII 4(μ4-O)4]18+ supertetrahedral core are reported. Mn49 and Mn25Na4 complexes consist of eight and four decametallic supertetrahedral ...

Article

Manganese citrate chemistry: Syntheses, spectroscopic studies, and structural characterizations of novel mononuclear, water-soluble manganese citrate complexes

Matzapetakis, M.; Karligiano, N.; Bino, A.; Dakanali, M.; Raptopoulou, C. P.; Tangoulis, V.; Terzis, A.; Giapintzakis, John; Salifoglou, A. (2000)

The first two mononuclear manganese citrate complexes, (NH4)4[Mn(II)(C6H5O7)2] (1) and (NH4)5[Mn(III)(C6H4O7)2]·2H2O (2) were synthesized in aqueous solutions near physiological pH values. They were isolated in their pure ...

Article

Mixed transition metal-lanthanide complexes at high oxidation states: Heteronuclear CeIVMnIV clusters

Tasiopoulos, Anastasios J.; Milligan Jr., P. L.; Abboud, K. A.; O'Brien, T. A.; Christou, George (2007)

The syntheses of the first mixed-metal CeIVMnIV complexes are reported. [CeMn2O3(O2CMe)(NO 3)4(H2O)2(bpy)2]-(NO 3) (1

Article

A [Mn32] double-decker wheel

Manoli, Maria; Inglis, R.; Manos, Manolis J.; Nastopoulos, Vassilios; Wernsdorfer, W.; Brechin, E. K.; Tasiopoulos, Anastasios J. (2011)

Inventing the double wheel: A mixed-valent [Mn32] cluster with a very rare "double-decker" wheel topology (see its metal-oxygen core: MnIII blue, MnII pink, O red) is reported. It is by far the highest-nuclearity example ...

Article

Preparation and crystal structures of MnII, mixed-valent MnII/MnIII, and MnIII polymeric compounds

Tasiopoulos, Anastasios J.; Harden, N. C.; Abboud, K. A.; Christou, George (2003)

The preparation and crystal structures of three polymeric Mn compounds are reported. The comproportionation reaction between Mn(OAc)2·4H2O and KMnO4 in MeOH-AcOH (2:3) leads to isolation of {[Mn(OH)(OAc)2]·AcOH·H2O}n (1). ...

Article

Preparation and surface characterisation of novel ceria-copper and ceria-manganese mixed oxides

Christophidou, Maria; Theocharis, Charis R. (2002)

The paper presents surface texture and catalysis results for a series of copper and manganese-containing ceria samples. These samples, especially the 20% manganese containing one, had significantly higher surface area than ...

Article

A single-chain magnet based on linear [MnIII2MnII] units

Papatriantafyllopoulou, Constantina; Zartilas, Sotiris M.; Manos, Manolis J.; Pichon, C.; Tasiopoulos, Anastasios J.; Clérac, R. (2014)

The synthesis, structural characterization and magnetic properties of a 1D coordination polymer based on a linear mixed valent [MnIII2MnII] repeating unit are described. It displays single-chain magnet (SCM) behaviour with ...