Polyhydrochinonsulfone. I. Synthese einiger molekulareinheiticher Hydrochinon‐Zweikernverbindungen mit Sulfonbrücken

Abstract

ZUSAMMENFASSUNG:Einige neue Zweikernverbindungen, in denen ein Hydrochinonkern iiber eine Sulfonbriicke mit einem substituierten Benzolkern verbunden ist, wurden dargestellt. Diese Substanzen konnen als Modellverbindungen fiir Sulfongruppen enthaltende Redoxpolymere angesehen werden. SUMMARY:Synthesis of some new dinuclear compounds, in which a hydroquinone unit is bridged by a sulphone group with a substituted benzene nucleus is described. The compounds can be regarded as models for oxidation-reduction-polymers which contain sulphone groups.Zur Aufklarung des Redoxverhaltens von Redoxpolymeren auf der Basis der Hydrochinon-Phenol-Formaldehyd-Kondensatel) wurden in friiheren Arbeiten2-8) niedermolekulare, molekulareinheitliche Modellsubstanzen dargestellt. Das Redoxverhalten dieser Verbindungen wurde durch potentiometrische Titration 2-7) oder polarographischg) untersucht.

Synthesis and Characterization of the Silver Maleonitrilediselenolates and Silver Maleonitriledithiolates [K([2.2.2]-cryptand)]4[Ag4(Se2C2(CN)2)4], [Na([2.2.2]-cryptand)]4[Ag4(S2C2(CN)2)4]·0.33MeCN, [NBu4]4[Ag4(S2C2(CN)2)4], [K([2.2.2]-cryptand)]3[Ag(Se2C2(CN)2McLauchlan1, Ibers2 2001Inorg. Chem.17250View full textAdd to dashboardCite

“…5,7 Noncluster complexes of Ag with chalcogen-containing ligands are also common. 5,[8][9][10][11][12][13][14][15][16] However, Ag complexes with the dithiolate ligand maleonitriledithiolate () mnt ) [S 2 C 2 (CN) 2 ] 2-) are limited primarily to the Ag 2 (mnt) salt, 17,18 polymeric (Ag 4 (mnt) 3 ) n 2-, 19 and [Ag(PPh 3 ) 2 ][Ag(PPh 3 ) 2 (mnt)]. [20][21][22] There is also a claim of [Ag(mnt) 2 ] 2-, 23 but no evidence is provided.…”

The Electrochemical Behavior in Aqueous Media of Conducting Polymers: II . The Insoluble Fractions Obtained on the Cu(II) Catalyzed Polymerization of (2,5‐Dibromo‐3‐Group IV Substituted) Thiophenes

“…The fact that they are extremely stable and not soluble in anything has made it impossible to study them by the usual techniques. That this structural element may be important to conductivity of the polymer is corroborated by the fact that the 1,2-dicyanoethylene-1,2-dithiolates are l0 s times more conducting than the 2,2-dicyanoethylene-l,l-dithiolate metal salts in which such structure elements cannot occur (30). The sulfurdouble bond-sulfur structural element common to the best conducting materials (30,31,35), perhaps, is also possible in the poly(thienylene) T-system if the resonance structure with double bonds between the rings would be the predominate one.…”

“…However, an interesting comparison of the divalent transition metal dithiolate system and our analogous coordinated polymer systems shows structural, electrical, and physical similarities (30). The fact that they are extremely stable and not soluble in anything has made it impossible to study them by the usual techniques.…”

“…It is well known that some transition metal dithioIate complexes exhibit semiconducting properties (30,31). 14h of cycling.…”

“…It is well known that some transition metal dithioIate complexes exhibit semiconducting properties (30,31). The 1,2-dicyanoethylene-l,2-dithiolate complexes are a particularly well studied system, and it is interesting to note that the copper complex not only has the highest electrical conductivity but it is also found with solvent molecules of crystallization (30).…”