Novel h-shaped persistent architecture based on a dispiro building block system.
[structure: see text] A novel dispiro building block, dispiro[fluorene-9,5'(7'H)-diindeno[2,1-b:1',2'-d]thiophene-7',9' '-fluorene], and its two derivatives, TBP-DSFDITF and TDOF-DSFDITF, were designed and synthesized. Because of the rigidity and orthogonality of the spiro structure, TBP-DSFDITF exhibits a well-defined H-shaped architecture, which consists of two ter(biphenyls) as the arms of the H-shape and 3,4-diphenylthiophene as the rung, connecting via completely rigid dispiro linkages with two sp(3) carbon atoms.
Institute of Advanced Materials (IAM), Fudan University, Shanghai 200433, China.
Ling-Hai
LH
Xie
Xiao-Ya
XY
Hou
Chao
C
Tang
Yu-Ran
YR
Hua
Rui-Jie
RJ
Wang
Run-Feng
RF
Chen
Qu-Li
QL
Fan
Lian-Hui
LH
Wang
Wei
W
Wei
Bo
B
Peng
Wei
W
Huang