A series of tantalum imido and amido complexes supported by a pyridine-linked bis(phenolate) ligand has been synthesized. Characterization of these complexes via X-ray crystallography reveals both C(s) and C(2) binding modes of the bis(phenolate)pyridine ligand, with complexes containing two or fewer strong pi-donor interactions from ancillary ligands giving C(s) symmetry, whereas three strong ...

The changes in the electronic absorption spectra (UV-Vis) of some metallocene-doped poly(methyl methacrylate) (PMMA) thin films containing chloroform molecules as impurities were studied after photoexcitation in the nitrogen atmosphere. Photoexcitations were made by monochromatic radiation (using a Xe-lamp source and a monochromator) at an interval of few nanometers in the spectral range 210-75...

Compounds which are able to destabilize the lysosomal membrane have been proposed as interesting candidates for targeted anticancer drugs due to the pronounced lysosomal changes in cancer cells. For this purpose, metallocene derivatives of a cell penetrating polyarginine peptide M–(Arg)9(Phe)2Lys–NH2 (where M = ferrocene carboxylate or ruthenocene carboxylate) were designed and their biological...

Chapter 21 Molecular modeling of transition metal complexes with nucleic acids and their constituents, 5y J. Kozelka Zinc complexes as targeting agents for nucleic acids, by E. Kimura and M. Shionoya Metallocene interactions with DNA and DNA-processing enzymes, by L. Y. Kuo, A. H. Liu and T. J. Marks .Evidence for a catalytic activity of. the DNA.double helix in the reaction 19etween DNA, platn...

The salt metathesis reaction between one equivalent of SmI2(THF)2 and two equivalents K(C5Me4H) in THF afforded single crystals the unusual, toluene-soluble, asymmetric bimetallic Sm(II)/Sm(II) complex, (C5Me4H)2SmII(μ-η3:η5-C5Me4H)SmII(C5Me4H)(THF)2, instead expected product, (C5Me4H)2SmII(THF)2. toluene-insoluble products this can be worked up 1,2-dimethoxyethane (DME) to provide X-ray qualit...

O-Functionalised salen ligands were employed as bridging ligands in the synthesis of homo- and heterometallic salen complexes with early and late transition metals (H(2)salen: N,N'-bis(salicylidene)ethylenediamine, systematic name: 2,2'-{ethane-1,2-diylbis(nitrilomethylidine)}diphenol). A new type of O-functionalised salen ligand was synthesised, which contains alkyl groups to enhance the solub...

Die Verstärkung der magnetischen Kopplung in 4f-basierten Einzelmolekülmagneten ist eine Herausforderung. In ihrem Forschungsartikel auf S. 24408 setzen Akseli Mansikkamäki, Muralee Murugesu und Mitarbeiter stark delokalisierte Tetrazinyl-Radikale zur Verbrückung von 4f-Metallocenen ein, um vierkernige Komplexe zu bilden. Eine gründliche Untersuchung Eigenschaften theoretische Studien stützen e...