Ein stabiles Trichlor‐oxyphosphoran mit einem Oxaphosphorinring

A stable Trichloro‐oxyphosphorane with an Oxaphosphorine Ring The cyclic, aryl‐substituted chlorophosphonite 3 reacts with chlorine to give the trichloro‐oxyphosphorane 4 (6, 6, 6‐trichloro‐6H‐dibenzo[c, e]1, 2‐oxaphosphorine). The stability of the phosphorane is solvent‐dependent.     

Ein zweikerniger Zinkkomplex mit einem Dithioacetal‐Brückenliganden

A Dinuclear Zinc Complex with a Bridging Dithioacetal Ligand The pyrazolyl‐bis(thioimidazolyl)borate ligand L¹ of the complex [ L¹ Zn‐OClO₃] is partly decomposed upon attempts to replace the perchlorate ion by p‐nitrophenolate in a solution containing dichloromethane. As a result, two equivalents of the released mercaptoimidazole react with dichloromethane to form a dithioacetal. This in turn is bound via its two nitrogen donors to two L¹˙ Zn units forming the title complex, which was identified by a structure determination.