Adsorption mode of cinchonidine on Cu(111) surface.
The adsorption mode of cinchonidine on Cu(111) was directly obtained by in situ STM. The molecules were found to adsorb on the substrate surface and form a long-range ordered adlayer with (4 x 4) symmetry. While the quinoline rings lie parallel to Cu(111), the chiral quinuclidine moiety extends out of the surface. The enantioselectivity of catalysts may relate to this special adsorption conformation of cinchonidine on the surface.
Xu
Qing-Min
QM
Institute of Chemistry, Chinese Academy of Sciences, Beijing 100080, China.
Wang
Dong
D
Wan
Li-Jun
LJ
Bai
Chun-Li
CL
Wang
Yuan
Y
D000327:Adsorption; D002930:Cinchona Alkaloids / Q000737:chemistry*; D003300:Copper / Q000737:chemistry*; D016252:Microscopy, Scanning Tunneling; D013499:Surface Properties
D002930:Cinchona Alkaloids; C041622:cinchonidine; D003300:Copper