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submitted on 02.07.2018 and posted on 02.07.2018by Ying Wei, Quanyou Feng, Hui Liu, Xiuling Wang, Dongqing Lin, Fengning Guo, Changjin Ou, Songlin Xie, Mingdong Yi, Linghai Xie, Wei Huang
focus on another kind of square-type unit nanogrids with starlike divergent extensibility.
As a result, square windmill-like nanogrid WG4
have been successfully synthesized by two different kinds of fluorene-based nanosynthons,
namely I-shape nanosynthon and L-shape nanosynthon synthesis method. Besides WG4, triangle and hexagon windmill-like
nanogrids (WG3 and WG5) are also obtained via one-pot nanosynthesis of I-shape nanosynthon with WG3
as the main product. For the L-shape nanosynthon synthetic method, the
cyclization process possesses higher selectivity, resulting to an excellent yield
for WG4. In addition, two
stereoisomers of the triangle nanogrids, cis-trans-WG3 and cis-cis-WG3, were
separated and characterized from the single-crystal X-ray diffraction and 1H
NMR analyses for getting insight into the configuration of the triangle nanogrids
with the skeleton planarization for the trans-configuration
and deplanarization for the cis-configuration.
This work was supported by National Natural Science Foundation of China (21774061, 21504047, 21602111, 61136003), Natural Science Foundation of Jiangsu Province of China (BM2012010, BK20150834, BK20150832), Synergetic Innovation Centre for Organic Electronics and Information Displays, Nanjing University of Posts and Telecommunications Scientific Foundation NUPTSF (NY215078, NY215172, NY217082), and the Six Peak Talents Foundation of Jiangsu Province (XCL-CXTD-009)