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Citation link: http://nbn-resolving.de/urn:nbn:de:gbv:46-00103566-17
00103566-1.pdf
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Synthese multivalenter Organophosphonsäuren und - silanole. Neue Bausteine in der supramolekularen Chemie.


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Other Titles: Synthesis of multivalent organophosphonic acids and -silanols. New building blocks in supramolecular chemistry.
Authors: Schütrumpf, Alexandra 
Supervisor: Beckmann, Jens
1. Expert: Beckmann, Jens
2. Expert: Azov, Vladimir
Abstract: 
We present the Synthesis of new multifunctional organosilanols for their use in supramolecular chemistry and -phosphonic acids as linkers in metal phosphonates. The tri- and tetrasilanols benzene-1,3,5-tri-p-phenyl(hydroxydiisopropylsilane) (4), benzene-1,3,5-tri-p-biphenyl(hydroxydiisopropylsilane) (8) and tetrakis[(4-(hydroxydiisopropylsilyl)biphenyl)]silane (16) were synthesized. The supramolecular structures have been studied using the TOPOS program. For the synthesis of multivalent phosphonic acids a new synthetic route, the suzuki-coupling of 4-(Dimethoxy¬phosphoryl)phenylboronic acid to numerous aryl bromides, was established. In addition, the potentially photo switchable trans(E)-azobenzenebis(4-phosphonic acid) (31) was prepared. The luminescent phosphonic acids, anthracene-9,10-bisphosphonic acid (36), anthracen-9,10-bis(4'-phenylphosphonic acid) (38), pyrene-1,3,6,8-tetrakisphosphonic acid (40) and pyrene-1,3,6,8-tetrakis(4'-phenyl¬phosphonic acid) (42), have been synthesized and investigated by fluorescence spectroscopy. Furthermore the synthesis of the tetrahedral phosphonic acids, tetraphenylsilane-tetrakis(4-phosphonic acid) (44) and tetrabiphenylsilane-tetrakis(4-phos¬phonic acid) (47) is described. Two metal phosphonates are obtained from 44 with copper and zinc, which have been characterized by X-ray structure analysis.
Keywords: organophosphonic acid, organosilanols, metal phosphonates, supramolecular chemistry
Issue Date: 13-Dec-2013
Type: Dissertation
URN: urn:nbn:de:gbv:46-00103566-17
Institution: Universität Bremen 
Faculty: FB2 Biologie/Chemie 
Appears in Collections:Dissertationen

  

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