Tris(1-pyrazolyl)borate (scorpionate) functionalized polymers as scaffolds for metallopolymers

Macromolecules

Volumn 41, Issue 9, 2008, Pages 2972-2974

  Qin, Yang ^a   Cui, Chengzhong ^a   Jäkle, Frieder ^a  

^a RUTGERS UNIVERSITY   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

METALLOPOLYMERS; POLYMERIC STRUCTURES; REACTION MIXTURE; REDOX ACTIVITY;

MAGNETIC PROPERTIES; METAL COMPLEXES; MOISTURE; OPTICAL PROPERTIES; REDOX REACTIONS; SCAFFOLDS;

POLYMERS;

EID: 44449165628     PISSN: 00249297     EISSN: None     Source Type: Journal    
DOI: 10.1021/ma800310v     Document Type: Article

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33. For solubility reasons, the Na salt was chosen over the commonly used K salt. A reviewer noted that the solubility characteristics could also be optimized by using long alkyl side chains or a copolymerization method. Indeed, another approach would be to prepare Tp copolymers from styrene/ trimethylsilylstyrene random copolymers. However, in contrast to our highly modular approach, multiple polymer precursors would be needed to achieve different loadings. Moreover, the remaining silyl groups have a dual function in that they themselves serve to further promote solubility in moderately polar solvents (in analogy to the alkyl side chain approach). Given the high stability of silicon-carbon bonds, no adverse effects are expected for most applications in materials chemistry or catalysis.
34. 3 Da. The latter data are very close to those determined experimentally.
35. 2-substituted derivatives leads to selective formation of the desired Tp ligands; see refs 3 and 4.
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37. The residue likely contains boron ceramic material; boron polymers are commonly used as precursors to boron carbide and boron nitride materials: Sneddon, L. G.; Pender, M. J.; Forsthoefel, K. M.; Kusari, U.; Wei, X. J. Eur. Ceram. Soc. 2005, 25, 91-97. This may also be related to the slightly low %C and %N for the elemental analysis of 4-Ru.
38. 6 irreversible redox behavior was observed likely due to poor solvation of the charged polymer and deposition on the electrode.