PMID- 31885139
OWN - NLM
STAT- PubMed-not-MEDLINE
DCOM- 20200824
LR  - 20200824
IS  - 1613-6829 (Electronic)
IS  - 1613-6810 (Linking)
VI  - 16
IP  - 4
DP  - 2020 Jan
TI  - Missing Link between Helical Nano- and Microfilaments in B4 Phase Bent-Core 
      Liquid Crystals, and Deciphering which Chiral Center Controls the Filament 
      Handedness.
PG  - e1905591
LID - 10.1002/smll.201905591 [doi]
AB  - The range of possible morphologies for bent-core B4 phase liquid crystals has 
      recently expanded from helical nanofilaments (HNFs) and modulated HNFs to dual 
      modulated HNFs, helical microfilaments, and heliconical-layered nanocylinders. 
      These new morphologies are observed when one or both aliphatic side chains 
      contain a chiral center. Here, the following questions are addressed: which of 
      these two chiral centers controls the handedness (helicity) and which morphology 
      of the nanofilaments is formed by bent-core liquid crystals with tris-biphenyl 
      diester core flanked by two chiral 2-octyloxy side chains? The combined results 
      reveal that the longer arm of these nonsymmetric bent-core liquid crystals 
      controls the handedness of the resulting dual modulated HNFs. These derivatives 
      with opposite configuration of the two chiral side chains now feature twice as 
      large dimensions compared to the homochiral derivatives with identical 
      configuration. These results are supported by density functional theory 
      calculations and stochastic dynamic atomistic simulations, which reveal that the 
      relative difference between the para- and meta-sides of the described series of 
      compounds drives the variation in morphology. Finally, X-ray diffraction, 
      scanning electron microscopy (SEM), transmission electron microscopy (TEM), and 
      atomic force microscopy (AFM) data also uncover the new morphology for B4 phases 
      featuring p2/m symmetry within the filaments and less pronounced crystalline 
      character.
CI  - (c) 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
FAU - Shadpour, Sasan
AU  - Shadpour S
AD  - Chemical Physics Interdisciplinary Program, Advanced Materials and Liquid Crystal 
      Institute, Kent State University, Kent, OH, 44242-0001, USA.
FAU - Nemati, Ahlam
AU  - Nemati A
AUID- ORCID: 0000-0003-0282-2027
AD  - Chemical Physics Interdisciplinary Program, Advanced Materials and Liquid Crystal 
      Institute, Kent State University, Kent, OH, 44242-0001, USA.
FAU - Salamonczyk, Miroslaw
AU  - Salamonczyk M
AUID- ORCID: 0000-0002-1085-2296
AD  - Faculty of Chemistry, University of Warsaw, 02-089, Warszawa, Poland.
FAU - Prevot, Marianne E
AU  - Prevot ME
AUID- ORCID: 0000-0002-1828-414X
AD  - Chemical Physics Interdisciplinary Program, Advanced Materials and Liquid Crystal 
      Institute, Kent State University, Kent, OH, 44242-0001, USA.
FAU - Liu, Jiao
AU  - Liu J
AD  - Chemical Physics Interdisciplinary Program, Advanced Materials and Liquid Crystal 
      Institute, Kent State University, Kent, OH, 44242-0001, USA.
FAU - Boyd, Nicola J
AU  - Boyd NJ
AD  - Department of Chemistry, Durham University, Durham, DH1 3LE, UK.
FAU - Wilson, Mark R
AU  - Wilson MR
AUID- ORCID: 0000-0001-6413-2780
AD  - Department of Chemistry, Durham University, Durham, DH1 3LE, UK.
FAU - Zhu, Chenhui
AU  - Zhu C
AUID- ORCID: 0000-0003-1263-5065
AD  - Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA, 
      94720, USA.
FAU - Hegmann, Elda
AU  - Hegmann E
AUID- ORCID: 0000-0003-3287-5103
AD  - Chemical Physics Interdisciplinary Program, Advanced Materials and Liquid Crystal 
      Institute, Kent State University, Kent, OH, 44242-0001, USA.
AD  - Department of Biological Sciences, Kent State University, Kent, OH, 44242-0001, 
      USA.
AD  - Brain Health Research Institute, Kent State University, Kent, OH, 44242-0001, 
      USA.
FAU - Jakli, Antal I
AU  - Jakli AI
AUID- ORCID: 0000-0001-8627-7606
AD  - Chemical Physics Interdisciplinary Program, Advanced Materials and Liquid Crystal 
      Institute, Kent State University, Kent, OH, 44242-0001, USA.
AD  - Department of Physics and Astronomy, Kent State University, Kent, OH, 44242-0001, 
      USA.
FAU - Hegmann, Torsten
AU  - Hegmann T
AUID- ORCID: 0000-0002-6664-6598
AD  - Chemical Physics Interdisciplinary Program, Advanced Materials and Liquid Crystal 
      Institute, Kent State University, Kent, OH, 44242-0001, USA.
AD  - Brain Health Research Institute, Kent State University, Kent, OH, 44242-0001, 
      USA.
AD  - Department of Chemistry and Biochemistry, Kent State University, Kent, OH, 
      44242-0001, USA.
LA  - eng
PT  - Journal Article
PT  - Research Support, U.S. Gov't, Non-P.H.S.
DEP - 20191229
PL  - Germany
TA  - Small
JT  - Small (Weinheim an der Bergstrasse, Germany)
JID - 101235338
SB  - IM
OTO - NOTNLM
OT  - B4 phases
OT  - bent-core liquid crystals
OT  - chirality
OT  - handednesses
OT  - helical nanofilaments
EDAT- 2019/12/31 06:00
MHDA- 2019/12/31 06:01
CRDT- 2019/12/31 06:00
PHST- 2019/09/30 00:00 [received]
PHST- 2019/11/18 00:00 [revised]
PHST- 2019/12/31 06:00 [pubmed]
PHST- 2019/12/31 06:01 [medline]
PHST- 2019/12/31 06:00 [entrez]
AID - 10.1002/smll.201905591 [doi]
PST - ppublish
SO  - Small. 2020 Jan;16(4):e1905591. doi: 10.1002/smll.201905591. Epub 2019 Dec 29.