Alcatel N.v.

Centre National De La Recherche Scientifique

L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des

Compagnie Generale D'electricite

Anny Jutand

Jean-Francois Fauvarque

Christian Amatore

Panayotis Cocolios

Michel Troupel

Victorien Ratovelomanana

Said Aziz

Claude Chevrot

Fernando Pfluger

Kenneth Yamaguchi

Francois Draskovic

An organic material for non-linear optics, in which the structure of the molecule includes an electron donor group and an electron attractor group connected by means of an electron-transmitting group, the material being characterized by the fact that it satisfies the formula: ##STR1## where R is selected from (CH.sub.3).sub.2 N and CH.sub.3 O, with the first material being dimethylamino 4, cyano 4' biphenyl and the second being methoxy 4, cyano 4' biphenyl.

Organic material for non-linear optics

Process using transition metal complexes for the separation of dioxygen

The process includes an electrochemical reduction, under carbon dioxide atmosphere, of benzyl type ArCH.sub.2 X or ArCH(CH.sub.3)X halogenides. According to the invention, the process consists of operating in the presence of a catalyst containing at least one organometallic complex derived from a transition metal combined with a bidentate or tetradentate coordinate.

Process for preparing arylacetic and arylpropionic acids

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Paris, France

Anny Jutand