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Facile Assembly of Chiral Metallosquares by Using Enantiopure Tribenzotriquinacene Corner Motifs
Author(s) -
Xu WenRong,
Xia GuangJie,
Chow HakFun,
Cao XiaoPing,
Kuck Dietmar
Publication year - 2015
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201501556
Subject(s) - enantiopure drug , circular dichroism , crystallography , scanning electron microscope , diacetylene , platinum , materials science , mass spectrometry , square (algebra) , chemistry , geometry , enantioselective synthesis , mathematics , polymer , organic chemistry , catalysis , chromatography , composite material , polymerization
A pair of enantiomerically pure metallosquares based on linear platinum‐diacetylene edges and tribenzotriquinacene corner units was synthesized. Their structures were characterized by 1 H‐, 13 C‐ and 31 P NMR spectroscopy as well as MALDI‐TOF mass spectrometry and circular dichroism. Based on DFT calculation, the optimized geometry possesses a distorted square conformation in which the four edges are not sitting on the same plane. The molecular square further self‐assembled in the solid state to afford microspheres with diameter of approximately 300 nm, as determined by scanning electron microscopy.