Lithium and aluminium carbamato derivatives of the utility amide 2, 2, 6, 6- tetramethylpiperidide

Insertion of CO2 into the metal-N bond of a series of synthetically-important alkali-metal TMP (2,2,6,6-tetramethylpiperidide) complexes has been studied. Determined by X-ray crystallography, the molecular structure of the TMEDA-solvated Li derivative shows a central 8-membered (LiOCO)2 ring lying in a chair conformation with distorted tetrahedral lithium centres. While trying to obtain crystals of a THF solvated derivative, a mixed carbonato/carbamato dodecanuclear lithium cluster was formed containing two central (CO3)2- fragments and eight O2CTMP ligands with four distinct bonding modes. A bisalkylaluminium carbamato complex has also been prepared via two different methods (CO2 insertion into a pre-formed Al-N bond and ligand transfer from the corresponding lithium reagent) which adopts a dimeric structure in the solid state

Recent Developments in Boron-Phosphorus Ring and Cage Chemistry

The chemical and structural diversity of compounds containing Groups 13/15 element combinations continues to expand at a rapid pace. In this paper we outline some recent results from our groups that illustrate the continued evolution of boronphosphorus ring and cage constructs. 15

Politinių kalbų patriotizmo elementai tinklaraščiuose

Blogs are increasingly attracting attention not only as personal diaries, but also as writings reflecting the social life, e.g. texts published during an election campaign. However, there has been little linguistic research of blogs. The objective of this paper is to present efforts to analyse how political ideas and concepts are expressed in these blogs. These efforts mainly focus on expression of the concept of patriotism by language means. They are based on the assumption that patriotism plays a special role in election campaigns of European countries, as politicians, in particular those belonging to certain political parties, define themselves and their goals differently from most EU countries. Therefore, an example being illustrated analyses language in blogs of two Lithuanian candidates from the Conservative Party during the pre-election campaign of elections to the European Parliament in 2009. The analysis revealed that the ideology of patriotism of a party or politician in the writing style is not necessarily visible, as political views of both candidates are the same as of their parties, however, the number of patriotism elements in texts is quite different. By combining these analysis results with the analysis of speech acts (according to Searle, 1979) in the same blog texts, a question can be raised as to whether there is a certain correlation between types of speech acts of politicians and the number of patriotism elements. However, it is merely a hypothesis arising from a single example. It remains to be proved and, in order to obtain more accurate results, it is necessary to analyse larger amount of text