Catherine P. Raptopoulou

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As part of our interest into the bioinorganic chemistry of gallium, gallium(III) complexes of the azole ligands 2,1,3-benzothiadiazole (btd), 1,2,3-benzotriazole (btaH), and 1-methyl-4,5-diphenylimidazole (L) have been isolated. Reaction of btaH or btd with GaBr(3) or GaCl(3) resulted in the mononuclear complexes [GaBr(3)(btaH)(2)] (1) and [GaCl(3)(btd)(2)](More)
† This article is dedicated to Dante Gatteschi, a pioneer in the interdisciplinary field of Molecular Magnetism and a great mentor, on the occasion of his 70th birthday. Abstract: The 1:1 reactions between hydrated lanthanide(III) nitrates and triethanolamine (teaH 3) in MeOH, in the absence of external bases, have provided access to the dinuclear complexes(More)
The combined use of di-2-pyridyl ketone, (py) 2 CO, and acetates (MeCO 2 ´) in nickel(II) chemistry in H 2 O-MeCN under basic conditions (Et 3 N) afforded the coordination cluster [Ni 11 (OH) 6 (O 2 CMe) 12 {(py) 2 C(OH)(O)} 4 (H 2 O) 2 ] (1) in 80% yield, where (py) 2 C(OH)(O) ´ is the monoanion of the gem-diol form of (py) 2 CO. The complex contains a(More)
In the title compound, [Re(C10H6NO2)(CO)3{As(C6H5)3}], the coordination environment of Re(I) is that of a distorted octa-hedron. Three coordination sites are occupied by three carbonyl groups in a facial arrangement and the remaining three sites by tri-phenyl-arsane and deprotonated quinaldic acid in As-mono- and N,O-bidentate fashions, respectively. In the(More)
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 MnSO(4) . H(2)O and (py)C(Me)NOH in H(2)O lead to the dinuclear complex [Mn(2)(SO(4))(2){(py)C(Me)NOH}(4)] . (py)C(Me)NOH, 1 . (py)C(Me)NOH, while employment of NaOMe as base affords the(More)
N,N'-diethylurea (DEU) was employed as a ligand to form the octahedral complexes [M(DEU)(6)](2+) (M=Co, Ni and Zn). Compounds [Co(DEU)(6)](BF(4))(2) (1), [Co(DEU)(6)](CIO(4))(2) (2), [Ni(DEU)(6)](CIO(4))(2) (3), and [Zn(DMU)(6)](CIO(4))(2) (4) have been prepared from the reactions of DEU and the appropriate hydrated metal(II) salts in EtOH in the presence(More)
The synthesis of new trans A(2)B(2)-substituted porphyrins bearing oxygenic substituent (methoxy, acetoxy, hydroxy) at the periphery of the ring are described. All of the synthesized products were characterized by (1)H-N.M.R., (13)C-N.M.R., and H.R.M.S. Electrochemical studies revealed two one-electron oxidations and two reductions. In addition, the X-ray(More)
The employment of 3-pyridine aldoxime, (3-py)CHNOH, in Zn(II) chemistry has afforded two novel compounds: [Zn(acac)(2){(3-py)CHNOH}]·H(2)O (1·H(2)O) [where acac(-) is the pentane-2,4-dionato(-1) ion] and [Zn(2)(O(2)CMe)(4){(3-py)CHNOH}(2)] (2). Complex 1·H(2)O crystallizes in the monoclinic space group P2(1)/n. The Zn(II) ion is five-coordinated, surrounded(More)
The reaction of N, N-bis(2-hydroxyethyl)glycine (bicine; bicH(3)) with Cd(O(2)CPh)(2) · 2H(2)O in MeOH yielded the polymeric compound [Cd(2)(O(2)CPh)(2)(bicH(2))(2)](n)(1). The complex crystallizes in the tetragonal space group P4(1)2(1)2. The lattice constants are a = b = 12.737(5) and c = 18.288(7) Å. The compound contains chains of repeating(More)
The 1 : 2 reaction of [Ti(eta(5)-C(5)H(5))(2)Cl(2)] and AgF in CHCl(3)/H(2)O yielded the fluoro analog [Ti(eta(5)-C(5)H(5))(2)F(2)] (1) in almost quantitative yield (C(5)H(5) is the cyclopentadienyl group). The coordination about the Ti(IV) atom formed by two fluoro ligands and the centroids of the cyclopentadienyl rings is distorted tetrahedral. The(More)