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Title: Identification of a Frank–Kasper Z phase from shape amphiphile self-assembly

Journal Article · · Nature Chemistry

Frank-Kasper phases, a family of ordered structures formed from particles with spherical motifs, are found in a host of materials, such as metal alloys, inorganic colloids and various types of soft matter. All the experimentally observed Frank-Kasper phases can be constructed from the basic units of three fundamental structures called the A15, C15 and Z phases. The Z phase, typically observed in metal alloys, is associated with a relatively large volume ratio between its constituents, and this constraint inhibits its formation in most self-assembled single-component soft-matter systems. We have assembled a series of nanosized shape amphiphiles that comprise a triphenylene core and six polyhedral oligomeric silsesquioxane cages grafted onto it through linkers to give a variety of unconventional structures, which include the Z phase. Finally, this structure was obtained through fine tuning of the linker lengths between the core and the peripheral polyhedral oligomeric silsesquioxane cages, and exhibits a relatively large volume asymmetry between its constituent polyhedral particle motifs.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States); National Science Foundation (NSF); Program for Guangdong
Sponsoring Organization:
USDOE Office of Science (SC); Northern Illinois University; National Science Foundation (NSF)
Grant/Contract Number:
AC02-06CH11357
OSTI ID:
1625311
Journal Information:
Nature Chemistry, Journal Name: Nature Chemistry Journal Issue: 10 Vol. 11; ISSN 1755-4330
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (5)

An Exceptionally Stable and Scalable Sugar–Polyolefin Frank–Kasper A15 Phase journal December 2019
Small‐Molecule Modulation of Soft‐Matter Frank–Kasper Phases: A Method for Adding Function to Form journal January 2020
An Exceptionally Stable and Scalable Sugar–Polyolefin Frank–Kasper A15 Phase journal January 2020
Small‐Molecule Modulation of Soft‐Matter Frank–Kasper Phases: A Method for Adding Function to Form journal January 2020
Controlling the Periodically Ordered Nanostructures in Ceramics: A Macromolecule‐Guided Strategy journal November 2019