Über Phosphazene. II. Darstellung und Struktur der Tetraphenyl‐dithio‐imidodiphosphinsäure

Abstract

Mit starken Basen als Kondensationsmittel entsteht aus Diphenylthiophosphinylamid und ‐chlorid das Imid [[(C6H5)2PS]2PS]2NH, das seiner Azidität wegen und in Anlehnung an bestehende Namengebungen als Tetraphenyl‐dithio‐imidodiphosphinsäure bezeichnet wird. Durch IR‐Spektrenvergleich und durch NMR‐Spektren wird das Vorliegen der NH‐Form belegt. Die Methylierung erfolgt jedoch ausschließlich am Schwefel; in zweiter Stufe entstehen Bis‐(diphenyl‐methylthiophosphor)‐nitrid‐Salze [(C6H5)2PSCH3]2N+X−. Das Lithium‐tetraphenyl‐dithio‐imidodiphosphinat besitzt Chelatcharakter.

Experimental and Theoretical Investigations of the Contact Ion Pairs Formed by Reactions of the Anions [(EPR2)2N]− (R = iPr, tBu; E = S, Se) with the Cations [(TePR2)2N]+ (R = iPr, tBu)

“…1,2 In the case of E = O, S, Se these monoanions are readily accessible by deprotonation of the corresponding imides and a large variety is available as a consequence of varying the chalcogen atoms and/or the organic groups bound to phosphorus. The primary focus has been the coordination chemistry of these bidentate ligands, and several reviews that provide details of the complexes of 1 with a diverse array of main group, lanthanide and transition metals have been published.…”

Fungicidal Activity of New Diphenylphosphinic Amide Derivatives

“…Column chromatography was performed on Wakogel B-10 (toluene: acetone = 5: 1 as the eluent). (4). Sodium hydride (60% in oil, 0.9 g) and benzyl chloride (2.8 g) were N-(Benzylaminocarbonylmethylthio diphenylphosphoranylidene)-P,P-diphenylthiophosphinic amide (14).…”

Experimental and Theoretical Investigations of the Redox Behavior of the Heterodichalcogenido Ligands [(EPiPr2)(TePiPr2)N]−(E = S, Se): Cyclic Cations and Acyclic Dichalcogenide Dimers

“…1 Such compounds are of great interest as they represent inorganic analogues of the common organic chelating ligand acetylacetonate (acac), although the inorganic backbone displays much greater flexibility than the organic counterpart whose planarity is imposed by an array of sp 2 -hybridized centers. A considerable variety of different dichalcogenidoimidodiphosphinates are known as a consequence of changing the chalcogens and/or the organic groups bound to phosphorus.…”