No abstract

The „Acid”︁ of Red Roussin's Salt and its derivatives Di‐μ‐mercapto‐tetranitrosyldiiron, (ON)2Fe(SH)2Fe(NO)2 (2), is formed by acidification of an aqueous solution fo Roussin's Red salt, na2[Fe2S2(NO)4], or by reaction of [AsPh4]2[(ON)2Fe(SH)2Fe(NO)]2 (1) with CF3CO2H or HBF4, respectively, and was characterized by analysis and by its infrared and mass spectra. 1 reacts with methyl iodide to give the methylthio‐bridged complex (ON)2Fe(SCH3)2Fe(NO2 (3). From 1 and HCI [AsPh4][Fe(NO)2CI2] (65) has been obtained in a nonaqueous solution.

The reactions of Ru3(CO)12 and Os3(CO)12 with (CH3S)2 give polymeric [Ru(SCH3)2(CO)2]n, (n = 242) and [Os (SCH3)2(CO)2]n, (n = 34). The polymers react with bromine to form binuclear derivatives, [MBr(SCH3)2(CO)2]2, (M = Ru, Os). The i.r. and x-ray photoelectron data, and the possible structures are reported.

Die Darstellung der Tetracarbonylkomplexe (HLLH)M(CO)4, [(LL)M(CO)4]2− und [(OC)4M(LL)M″(CO)4]2− (M,M″ = Cr, Mo, W; LL = Dianion von 2.2′ Bimidazol, 5.5′‐Bitriazol) wird beschrieben. Nach den υ (C0)‐Banden sind die beiden Azolringe in den zweikernigen Komplexen nicht koplanar.

Tetrathioquadratat tritt in den Komplexen (Ph3P)2MC4S4M (PPh3)