TY - JOUR
T1 - Effect of the Core Structure on the Sequential Coordination of Phenylazomethine Dendrimer
AU - Albrecht, Ken
AU - Sakane, Noriko
AU - Inomata, Yusuke
AU - Yamamoto, Kimihisa
N1 - Funding Information:
This work was supported in part by the CREST program of the Japan Science and Technology (JST) Agency, Grantin- Aid for Scientific Research on Innovative Areas “Molecular Architectonics: Orchestration of Single Molecules for Novel Functions”, and by JSPS KAKENHI Grant Numbers 26410128, 80220458, and 21108009.
Publisher Copyright:
© 2014, Springer Science+Business Media New York.
PY - 2015/1/1
Y1 - 2015/1/1
N2 - Phenylazomethine dendrimer (DPA) is a dendritic ligand that coordinates to various Lewis acids in a stepwise radial fashion. Second generation para-substituted and meta-substituted phenylazomethine dendrimers with p-phenylenediamine and m-phenylenediamine core were synthesized and the coordination sequence was investigated by UV–vis titration. Stepwise radial complexation from the outer layer was observed for the m-phenylenediamine core meta-substituted phenylazomethine dendrimer (m-mG2). Other three dendrimers showed stepwise radial complexation from the inner layer. The reason could be explained with the binding constant of the 1st generation dendrimer (model of the 1st layer). This is suggesting that for controlling the coordination sequence of DPA, not only the dendron structure is important, but also the structure of the core is an important factor.
AB - Phenylazomethine dendrimer (DPA) is a dendritic ligand that coordinates to various Lewis acids in a stepwise radial fashion. Second generation para-substituted and meta-substituted phenylazomethine dendrimers with p-phenylenediamine and m-phenylenediamine core were synthesized and the coordination sequence was investigated by UV–vis titration. Stepwise radial complexation from the outer layer was observed for the m-phenylenediamine core meta-substituted phenylazomethine dendrimer (m-mG2). Other three dendrimers showed stepwise radial complexation from the inner layer. The reason could be explained with the binding constant of the 1st generation dendrimer (model of the 1st layer). This is suggesting that for controlling the coordination sequence of DPA, not only the dendron structure is important, but also the structure of the core is an important factor.
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U2 - 10.1007/s10904-014-0116-y
DO - 10.1007/s10904-014-0116-y
M3 - Article
AN - SCOPUS:84957946324
SN - 1574-1443
VL - 25
SP - 133
EP - 139
JO - Journal of Inorganic and Organometallic Polymers and Materials
JF - Journal of Inorganic and Organometallic Polymers and Materials
IS - 1
ER -