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- W2980514105 abstract "The primary object of this dissertation was the synthesis of new, monomeric or rather dimeric compounds consisting of the elements boron, as group 13 atom, and different pnictogens (phosphorus, arsenic, antimony), stabilized by a lewis base.By substitution of the weak lewis base (LB) SMe2 in the synthesized lewis acid/LB stabilized phosphanylborane (OC)5W-PH2BH2-SMe2 with different pnictogenylboranes, mixed, dimeric pnictogenylboranes of the type (OC)5W-PH2BH2-ER2BH2-LB (E = P, As, Sb; R = H, SiMe3) are available.Furthermore, it was shown that linear poly(phosphanylboranes) can be split with strong lewis bases. Besides the basicity and the thermal stability of the LB, the influence of the substituents as well as the solubility and the thermal stability of the polymer play an important role.The reaction of IBH2-NMe3 with KAsPh2 leads to the first LB stabilized, organic substituted arsanylborane Ph2AsBH2-NMe3. Starting from this compound, neutral, as well as cationic compounds by reaction with different boranes are available. In addition, the first chemically oxidized arsanylboranes were synthesized.By salt metathesis of (IBH2)2-TMEDA (TMEDA = tetramethylethylendiamine) with different phosphanides NaPRR’ (R = R‘ = H, Ph; R = H, R‘ = tBu), the first LB bridged phosphanylboranes were synthesized. The synthetic pathway was further extended to the heavier homologue As and the synthesis of the arsanylborane (AsPh2BH2)2-TMEDA succeeded. These compounds were investigated in case of their coordination behavior towards Au(I)-compounds and main group lewis acids. Additionally, dicationic compounds of the type (NMe3-H2BPH2BH2)2-LB were synthesized." @default.
- W2980514105 created "2019-10-25" @default.
- W2980514105 creator A5066737761 @default.
- W2980514105 date "2019-08-28" @default.
- W2980514105 modified "2023-09-27" @default.
- W2980514105 title "Contributions to the Chemistry of Phosphanylboranes" @default.
- W2980514105 hasPublicationYear "2019" @default.
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