TY - JOUR
T1 - Direct Estimation of the Surface Location of Immobilized Functional Groups for Concerted Catalysis Using a Probe Molecule
AU - Noda, Hiroto
AU - Motokura, Ken
AU - Wakabayashi, Yusuke
AU - Sasaki, Kaori
AU - Tajiri, Hiroo
AU - Miyaji, Akimitsu
AU - Yamaguchi, Sho
AU - Baba, Toshihide
PY - 2016/4/4
Y1 - 2016/4/4
N2 - The location of active sites during concerted catalysis by a metal complex and tertiary amine on a SiO2 surface is discussed based on the interaction between the functionalized SiO2 surface and a probe molecule, p-formyl phenylboronic acid. The interactions of the probe molecule with the surface functionalities, diamine ligand, and tertiary amine, were analyzed by FT-IR and solid-state 13C and 11B MAS NMR. For the catalyst exhibiting high 1,4-addition activity, the diamine ligand and tertiary amine base exist in closer proximity than in the catalyst with low activity.
AB - The location of active sites during concerted catalysis by a metal complex and tertiary amine on a SiO2 surface is discussed based on the interaction between the functionalized SiO2 surface and a probe molecule, p-formyl phenylboronic acid. The interactions of the probe molecule with the surface functionalities, diamine ligand, and tertiary amine, were analyzed by FT-IR and solid-state 13C and 11B MAS NMR. For the catalyst exhibiting high 1,4-addition activity, the diamine ligand and tertiary amine base exist in closer proximity than in the catalyst with low activity.
KW - active site distance
KW - amine
KW - heterogeneous concerted catalysis
KW - probe molecule
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U2 - 10.1002/chem.201600263
DO - 10.1002/chem.201600263
M3 - Article
AN - SCOPUS:84977853393
VL - 22
SP - 5113
EP - 5117
JO - Chemistry - A European Journal
JF - Chemistry - A European Journal
SN - 0947-6539
IS - 15
ER -