posted on 2018-05-18, 11:50authored byXiaoli Huang, Qiyang Li, Xue Xiao, Shuping Jia, Yue Li, Zhigang Duan, Lei Bai, Ze Yuan, Lin Li, Zhihua Lin, Yonggang Zhao
We
present here the synthesis of one enantiomeric pair of metal–organic
framework materials comprised of a unique multioriented double-helix
structure from an achiral spirocenter ligand. Our study clearly shows
that the chiral MOF material encompasses concurrently multiple nonlinear-optical
functions in the solid state: the noncentrosymmetric structural feature
brings the chiral MOF high second-harmonic-generation efficiency;
the incorporation of the spirocenter ligand can efficiently produce
two-photon-excited photoluminescence with a larger-action cross-sectional
value.