Premier Congrès international d'actuaires, Bruxelles, 2-6 septembre 1895. Documents.

Papers in French or English, those in English being accompanied by Frech translations.

1986 Linear Accelator Conference proceedings : Stanford Linear Accelator Center, Stanford University, Stanford, California, June 2-6, l986.

CONF-860629; UC-28.

Speech of Mr. Stevenson, of Virginia, on the proposition to amend the Constitution of the Unied States, respecting the election of president and vice president. Delivered in the House of Representatives, March 2, 6, 1826.

Mode of access: Internet.

Studien uber die 2-, 6-Dinitrochlorbenzol-4-sulfosaure /

Thesis (doctoral)--Universitat Zurich, 1907.

Methylather des 2, 6-dinitrohydrochinons und einige derivate.

Thesis (doctoral)--

Ueber Produkte der partiellen und totalen Reduction des 2,6-Dinitrothymolaethylaethers /

Thesis (doctoral)--Konigl. Universitat Breslau, 1903.

Die partielle elektrochemische reduktion des 2.6- und 2.4-dinit...

Thesis (doctoral)--

Sur quelques derives de l'acide 2,6 diaminodiphenylamine-4-carb...

Thesis (doctoral)--

Official proceedings of the National Democratic convention, held in Cincinnati, June 2-6, 1856.

Mode of access: Internet.

The preparation and characterization of seven-coordinate tin(IV) complexes of the 2,6-diacetylpyridine Schiff bases of S-alkyl/aryl-dithiocarbazates and the X-ray crystal structure of the [Sn(dapsme)I-2] complex (dapsme=doubly deprotonated form of the 2,6

New tin(IV) complexes of empirical formula, Sn(SNNNS)I-2 (SNNNS = anionic form of the 2,6-diacetylpyridine Schiff bases of S-methyl- or S-benzyldithiocarbazate) have been prepared and characterized by a variety of physico-chemical techniques. The structure of Sn(dapsme)I-2 has been determined by single crystal X-ray crystallographic structural analysis. The complex has a seven-coordinate distorted pentagonal-bipyramidal geometry with the Schiff base coordinated to the tin(IV) ion as a dinegatively charged pentadentate chelating agent via the pyridine nitrogen atom, the two azomethine nitrogen atoms and the two thiolate sulfur atoms. The ligand occupies the equatorial plane and the iodo ligands are coordinated to the tin(IV) ion at axial positions. The distortion from an ideal pentagonal bipyramidal geometry is attributed to the restricted bite size of the pentadentate ligands. (C) 2004 Elsevier Ltd. All rights reserved.

Macrocyclic systems containing 2,6,9-trioxabicyclo[3.3.1]-nona-3,7-dienes as chiral spacer groups: Synthesis, stereochemical features and preliminary complexation properties

Novel 2:2-macrocycles bearing bridged concave 2,6,9-trioxabicyclo[3.3.1]nona-3,7-dienes as chiral spacer units were obtained by cyclocondensation reaction of the chiral bisacid chloride and the corresponding diols, while use of methylene diamines instead of diols afforded 1:1 macrocycles only. Applying the same, but now template-assisted, experimental procedure to the reaction of the bisacid chloride with triethylene glycol brought about a significant increase in yield as well as a suitable simplification of the work-up during preparation and separation of the corresponding 1:1 as well as 2:2 macrocycles, when compared to results reported previously. HPLC separation on chiral columns revealed the presence of diastereoisomers [RR(S,S)- and RS-(meso)-forms] for all 2:2 macrocycles, which was further evidenced by the CD spectrum of one of those species as an example. Preliminary ESI-MS experiments indicated strong complexation abilities of the sulphur-containing ligand towards Ag(I), Cu(II) and Au(III) ions.