skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: An unusual type of polymorphism in a liquid crystal

Journal Article · · Nature Communications
 [1]; ORCiD logo [2];  [3];  [2];  [3]; ORCiD logo [4]
  1. Kent State Univ., Kent, OH (United States). Dept. of Chemistry and Biochemistry
  2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Advanced Light Source (ALS)
  3. Kent State Univ., Kent, OH (United States). Liquid Crystal Inst., Chemical Physics Interdisciplinary Program
  4. Kent State Univ., Kent, OH (United States). Dept. of Chemistry and Biochemistry; Kent State Univ., Kent, OH (United States). Liquid Crystal Inst., Chemical Physics Interdisciplinary Program

Polymorphism is a remarkable concept in chemistry, materials science, computer science, and biology. Whether it is the ability of a material to exist in two or more crystal structures, a single interface connecting to two different entities, or alternative phenotypes of an organism, polymorphism determines function and properties. In materials science, polymorphism can be found in an impressively wide range of materials, including crystalline materials, minerals, metals, alloys, and polymers. Here in this paper we report on polymorphism in a liquid crystal. A bent-core liquid crystal with a single chiral side chain forms two structurally and morphologically significantly different liquid crystal phases solely depending on the cooling rate from the isotropic liquid state. On slow cooling, the thermodynamically more stable oblique columnar phase forms, and on rapid cooling, a not heretofore reported helical microfilament phase. Since structure determines function and properties, the structural color for these phases also differs.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES)
Grant/Contract Number:
AC02-05CH11231
OSTI ID:
1433130
Journal Information:
Nature Communications, Vol. 9, Issue 1; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 31 works
Citation information provided by
Web of Science

References (29)

Pre-transmetalation intermediates in the Suzuki-Miyaura reaction revealed: The missing link journal April 2016
The kinetic origin of delayed yielding in metallic glasses journal June 2016
Stable field-induced ferrielectric liquid crystal phases in devices journal April 2009
A piezoelectric thermoplastic elastomer containing a bent-core liquid crystal journal January 2013
Preliminary communication Helical superstructures in a novel smectic mesophase formed by achiral banana-shaped molecules journal January 1999
Direct observation of liquid crystals using cryo-TEM: Specimen preparation and low-dose imaging: TEM of Liquid Crystals journal July 2014
Vitrification of a monatomic metallic liquid journal August 2007
A SAXS/WAXS/GISAXS Beamline with Multilayer Monochromator journal October 2010
Kinetic ways of tailoring phases in high entropy alloys journal September 2016
Abnormal correlation between phase transformation and cooling rate for pure metals journal March 2016
Helical Nanofilament Phases journal July 2009
A Modulated Helical Nanofilament Phase journal April 2013
4-Methylresorcinol based bent-core liquid crystals with azobenzene wings – a new class of compounds with dark conglomerate phases journal January 2014
Organization of the polarization splay modulated smectic liquid crystal phase by topographic confinement journal November 2010
Bent-core liquid crystals forming two- and three-dimensional modulated structures journal March 2003
Palladium-Catalyzed Cross-Coupling Reactions of Organoboron Compounds journal November 1995
Bent-core liquid crystals: polar order, superstructural chirality and spontaneous desymmetrisation in soft matter systems journal January 2006
Chiral Memory on Transition between the B2 and B4 Phases in an Achiral Banana-Shaped Molecular System journal September 2004
A Dual Modulated Homochiral Helical Nanofilament Phase with Local Columnar Ordering Formed by Bent Core Liquid Crystals: Effects of Molecular Chirality journal June 2016
Airflow-aligned helical nanofilament (B4) phase in topographic confinement journal July 2016
Spontaneous Formation of Macroscopic Chiral Domains in a Fluid Smectic Phase of Achiral Molecules journal December 1997
The use of circular dichroism spectroscopy for studying the chiral molecular self-assembly: An overview journal January 2008
Structural study of a bent-core liquid crystal showing the B 1 - B 2 transition journal September 2006
Vitrification of a Monatomic Metallic Liquid. journal October 2007
Direct observation of liquid crystals using cryo-TEM: Specimen preparation and low-dose imaging text January 2014
A Modulated Helical Nanofilament Phase journal April 2013
Electric-field-induced chiral separation in liquid crystals journal November 1999
Pseudolayered structure of the columnar B1 phase of bent-core liquid crystals journal October 2010
Nika : software for two-dimensional data reduction journal March 2012

Cited By (9)

Shaping Liquid Crystals with Gold Nanoparticles: Helical Assemblies with Tunable and Hierarchical Structures Via Thin‐Film Cooperative Interactions journal November 2019
Supramolecular Chiral Nanoarchitectonics journal March 2020
Nanoconfinement of the Low‐Temperature Dark Conglomerate: Structural Control from Focal Conics to Helical Nanofilaments journal May 2019
Missing Link between Helical Nano‐ and Microfilaments in B4 Phase Bent‐Core Liquid Crystals, and Deciphering which Chiral Center Controls the Filament Handedness journal December 2019
Tuning the crystal morphology and catalytic behavior of graphene-templated energetic bis-tetrazole copper coordination polymers journal March 2019
Heliconical-layered nanocylinders (HLNCs) – hierarchical self-assembly in a unique B4 phase liquid crystal morphology journal January 2019
A stabilized lamellar liquid crystalline phase with aggregation-induced emission features based on pyrrolopyrrole derivatives journal January 2019
Organic glasses with tunable liquid-crystalline order through kinetic arrest of end-over-end rotation: the case of saperconazole journal January 2020
Controlling the formation of heliconical smectic phases by molecular design of achiral bent-core molecules journal January 2020

Similar Records

Structure and polymorphism of saturated monoacid 1,2-diacyl-sn-glycerols
Journal Article · Sat Dec 01 00:00:00 EST 1990 · Biochemistry; (USA) · OSTI ID:1433130

Controlling the Structure and Morphology of Organic Nanofilaments Using External Stimuli
Journal Article · Tue Apr 18 00:00:00 EDT 2023 · ACS Nanoscience Au · OSTI ID:1433130

Elastic Properties and Fracture Behaviors of Biaxially Deformed, Polymorphic MoTe2
Journal Article · Wed Jan 09 00:00:00 EST 2019 · Nano Letters · OSTI ID:1433130

Related Subjects