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Silica Scaffold with Shifted “Plumber's Nightmare” Networks and their Interconversion into Diamond Networks
Author(s) -
Mao Wenting,
Cao Xin,
Sheng Qingqing,
Han Lu,
Che Shunai
Publication year - 2017
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201704639
Subject(s) - diamond , gyroid , materials science , amphiphile , copolymer , crystallography , nanotechnology , chemistry , composite material , polymer
Bicontinuous structures with hyperbolic surfaces have been found in a variety of natural and synthetic systems. Herein, we present the synthesis and structural study of the shifted double‐primitive networks, which is known as the rare “plumber's nightmare”, and its interconversion into diamond networks. The scaffold was prepared by self‐assembly of an amphiphilic triblock terpolymer and silica precursors. Electron crystallography indicates that the structure consists of two sets of hollow primitive networks shifted along 0.75 b and 0.25 c axes ( 2pcu (38 63), space group Cmcm ). The “side‐by‐side” epitaxial relationship of the primitive and diamond networks with unit cell ratio of about 1.30 has been directly observed with the intermediate surface related to the rPD family. These results bring new insights to previous theoretical studies.