Unexpected helicity control and helix inversion: homochiral helical nanotubes consisting of an achiral ligand.
The ligand tppda has been designed and synthesized as molecular leverage for helicity control when reacted with Cd(2+) ions. The guests MeOH or DMF preferentially stabilize the P-helical isomer, while the guest H2O causes a helix inversion to give the M-helical isomer as the major isomer without any chiral auxiliary.
Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, PR China. kjwei@ustc.edu.cn
Kaiju
K
Wei
Jia
J
Ni
Yuanzeng
Y
Min
Siming
S
Chen
Yangzhong
Y
Liu
D002104:Cadmium / Q000737:chemistry; D008024:Ligands; D008958:Models, Molecular; D015394:Molecular Structure; D043942:Nanotubes / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry; D010316:Particle Size; D010655:Phenylenediamines / Q000138:chemical synthesis / Q000737:chemistry*; D013499:Surface Properties
D008024:Ligands; D009942:Organometallic Compounds; D010655:Phenylenediamines; D002104:Cadmium; C031502:N,N,N'-triphenyl-4-phenylenediamine