ISSN:
0044-2313
Keywords:
Silver(I) halide complexes
;
bis(diphenylphosphino) amine ligand
;
preparation
;
nmr, ir, Raman data
;
Chemistry
;
Inorganic Chemistry
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
Description / Table of Contents:
Chemistry of Polyfunctional Molecules.107. Silver(I) Halide Complexes of Bis(diphenylphosphino)amineBis(diphenylphosphino)amine, [(C6H5)2P]2NH, dppa, (1) reacts with the Silver(I) Halides AgX (X = Cl, Br, I) in methanol to the ionic complexes [Ag3X2(dppa)3]+X- (3a: X = Cl, 3 b: X = Br, 3 c: X = 1). Metathesis with NH4PF6 in methanol yields the complexes [Ag3X2(dppa)3]+PF6- (3 a′: X = Cl, 3b′: X = Br, 3c′: X = I). For spectroscopic comparisons the compounds [Ag3X2(dppm)3]+X- [X = Cl, Br, I; 5a-c; dppm = (C6H52PCH2P(C6H5)2 (4)], in part described earlier, were also synthesized. Besides elemental analyses, conductivity measurements 31P{1H}-NMR, 1H-NMR and infrared spectra the complexes were especially characterized by their Raman spectra. The latter show for the trigonal bipyramidal cations of 3a-c, 3a′-c′ and 5a-c typical vs (XAg3X) bands at 135 (X = Cl), 125 (X = Br) and 105 (X = I) cm-1.
Notes:
Bis(diphenylphosphino)amin, [(C6H5)2P]2NH, dppa, (1) reagiert mit den Silber(I)halogeniden AgX (X = Cl, Br, I) in Methanol zu den ionischen Komplexen [Ag3X2(dppa)3]+X- (3a: X = Cl, 3b: X = Br, 3c: X = I). Metathese mit NH4PF6 in Methanol liefert die Komplexe [Ag3X2(dppa)3]+PF6- (3a′: X = Cl, 3b′: X = Br, 3c′: X = I). Zu spektroskopischen Vergleichszwecken werden auch die teilweise bekannten Verbindungen [Ag3X2(dppm)3]+X-[X = Cl, Br, I; 5a-c; dppm = (C6H5)2PCH2P(C6H5)2 (4)] dargestellt. Neben Elementaranalysen, Leitfähigkeitsmessungen, 31P{1H}-NMR, 1H-NMR- und IR-Spektren werden die Komplexe insbesondere durch ihre Raman-Spektren charakterisiert. Letztere zeigen für die trigonal-bipyramidalen Kationen von 3a-c, 3a′-c′ und 5a-c typische vs (XAg3X)-Banden bei etwa 135 (X = Cl), 125 (X = Br) und 105 (X = I) cm-1.
Additional Material:
1 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/zaac.19916030111
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