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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 545 (1987), S. 75-82 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Transition Metal Complexes [Et2P(S)NR]M/n, Chelates containing 4-membered Rings and Phosphinothioic-organylamidato LigandsPhosphinothioic-organylamidato complexes [Et2P(S)NR]M/n (R = Me, Et, tBu, cHex, Ph; M = TiIII, VIII, CrIII, CoII, ZnII) are obtained by reaction of metal halides with [Et2P(S)NR]Li or from ZnEt2 and Et2P(S)NHR. In contrast to the analogous phosphinothioic complexes [R′2P(S)X]M/n (X = O, S, Se) they are extremely hydrolyzable. The ligand field parameters Δ and β of Et2P(S)NR- are found to be similar to those of R′2P(S)S- indicating a low ligand field strength and a strong nephelauxetic effect. In contrast to [R′2P(S)O]2M (M = Co, Zn), which are highly polymerised, there is only a weak tendency of the corresponding tetrahedral phosphinothioicorganylamidato complexes to form ligand bridges.
    Notes: Thiophosphinsäure-organylamidato-Komplexe [Et2P(S)NR]M/n (R = Me, Et, tBu, cHex, Ph; M = TiIII, VIII, CrIII, CoII, ZnII) erhält man durch Umsetzung von [Et2P(S)NR]Li mit Metallhalogeniden oder aus ZnEt2 und Et2P(S)NHR.Im Gegensatz zu den analogen Thiophosphinaten [R′2P(S)X]M/n (X = O, S, Se) sind sie äußerst hydrolyseempfindlich. Die Ligandenfeldparameter Δ und β von Et2P(S)NR- sind denen von R′2P(S)S- ähnlich und lassen eine nur geringe Ligandenfeldstärke und einen starken nephelauxetischen Effekt erkennen. Im Gegensatz zu den Komplexen [R′2P(S)O]2M (M = Co, Zn), die hochpolymer sind, zeigen die entsprechenden tetraedrischen Komplexe mit Thiophosphinsäureorganylamidato-Liganden nur eine geringe Tendenz zur Bildung von Ligandenbrücken.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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