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Synthesis and Characterization of the 1 : 1-Adducts of In(C6F5)3 with Acetonitrile, Glyme, and DMAP (DMAP = 4-(N,N-dimethylamino)pyridine), and [PNP][In(C6F5)4] (PNP = bis(triphenylphosphinanyliden)immonium) – the Crystal Structure of [PNP][In(C6F5)4]

✍ Scribed by Zel-Ho Choi; Wieland Tyrra; Arnold Adam

Publisher
John Wiley and Sons
Year
1999
Tongue
German
Weight
127 KB
Volume
625
Category
Article
ISSN
0372-7874

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✦ Synopsis

In(C 6 F 5 ) 3 ´CH 3 CN and In(C 6 F 5 ) 3 ´glyme were synthesized from InCl 3 and Cd(C 6 F 5 ) 2 in CH 3 CN or glyme in 43% and 35% yield, respectively. Replacement of CH 3 CN or (C 2 H 5 ) 2 O by DMAP yielded the corresponding 1 : 1-adduct.

[PNP][In(C 6 F 5 ) 4 ] was best prepared from the corresponding cesium salt which was best synthesized from the reaction of stoichiometric amounts of In(C 6 F 5 ) 3 ´CH 3 CN, (CH 3 ) 3 SiC 6 F 5 and CsF in good yield.

[PNP][In(C 6 F 5 ) 4 ] crystallizes in the triclinic space group P 1, a = 1104.9( 4) pm, b = 1442.4(6) pm, c = 1833.8(8) pm, a = 110.87(2)°, b = 92.04(3)°, c = 96.55(3)°, Z = 2.

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