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Kaneko K, Mandai A, Heinrich B, Donnio B, Hanasaki T. Synthesis and mesomorphic properties of "side-on" hybrid liquid crystalline silsesquioxanes. SOFT MATTER 2023; 19:9115-9122. [PMID: 37990586 DOI: 10.1039/d3sm00801k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2023]
Abstract
Novel hybrid silsesquioxane-based liquid crystalline derivatives with varied lengths of spacers and tails have been synthesized by hydrosilylation reactions of octakis(dimethylsiloxy)silsesquioxane and side-on mesogens via a platinum catalyst. The thermal behavior of three types of silsesquioxane-based liquid crystals (LCs), differentiated by the molecular structure of mesogens, was investigated by differential scanning calorimetry (DSC) and polarising optical microscopy (POM). Temperature-dependent small and wide-angle X-ray scattering was used to verify liquid crystalline phases, revealing that the silsesquioxane-based derivatives formed hexagonal columnar and nematic mesophases, and the effect of the molecular structure of the mesogens and the spacer length on the formation of LC phases is discussed. This investigation demonstrated that the choice of the "side-on" attachments plays a crucial role in enhancing the emergence of the nematic phase.
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Affiliation(s)
- Kosuke Kaneko
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga 525-8577, Japan.
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 (CNRS-Université de Strasbourg), 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Atsuhiko Mandai
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga 525-8577, Japan.
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 (CNRS-Université de Strasbourg), 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 (CNRS-Université de Strasbourg), 23, rue du Loess, BP 43, 67034 Strasbourg Cedex 2, France
| | - Tomonori Hanasaki
- Department of Applied Chemistry, College of Life Sciences, Ritsumeikan University, 1-1-1, Nojihigashi, Kusatsu, Shiga 525-8577, Japan.
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Dong Y, Zhang B, Zhao F, Gao F, Liu D. Dendrimer Based Binders Enable Stable Operation of Silicon Microparticle Anodes in Lithium-Ion Batteries. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023; 19:e2206858. [PMID: 36929041 DOI: 10.1002/smll.202206858] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2022] [Revised: 02/13/2023] [Indexed: 06/15/2023]
Abstract
High-capacity anode materials (e.g., Si) are highly needed for high energy density battery systems, but they usually suffer from low initial coulombic efficiency (CE), short cycle life, and low-rate capability caused by large volume changes during the charge and discharge process. Here, a novel dendrimer-based binder for boosting the electrochemical performance of Si anodes is developed. The polyamidoamine (PMM) dendrimer not only can be used as binder, but also can be utilized as a crosslinker to construct 3D polyacrylic acid (PAA)-PMM composite binder for high-performance Si microparticles anodes. Benefiting from maximum interface interaction, strong average peeling force, and high elastic recovery rate of PAA-PMM composite, the Si electrode based on PAA-PMM achieves a high specific capacity of 3590 mAh g-1 with an initial CE of 91.12%, long-term cycle stability with 69.80% retention over 200 cycles, and outstanding rate capability (1534.8 mAh g-1 at 3000 mA g-1 ). This work opens a new avenue to use dendrimer chemistry for the development of high-performance binders for high-capacity anode materials.
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Affiliation(s)
- Yanling Dong
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Biao Zhang
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Fugui Zhao
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Feng Gao
- Key Laboratory of Carbon Fiber and Functional Polymers, Ministry of Education, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
| | - Dong Liu
- State Key Laboratory of Organic-Inorganic Composites, College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People's Republic of China
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Ulloa JA, Barberá J, Serrano JL. Gold Nanoparticles Modification with Liquid Crystalline Polybenzylic Dendrons via 1,3-Dipolar Cycloaddition. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:4026. [PMID: 36432312 PMCID: PMC9699240 DOI: 10.3390/nano12224026] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/28/2022] [Revised: 11/10/2022] [Accepted: 11/12/2022] [Indexed: 06/16/2023]
Abstract
A series of six polybenzylic dendrons with an alkynyl focal point were synthesized for their incorporation to gold nanoparticles. Five of these compounds showed columnar mesomorphism in a wide range of temperatures. These dendrons were reacted with gold nanoparticles stabilized with a combination of a dodecanethiol and 11-azidoundecane-1-thiol. The azido group of the last compound allowed the functionalization of the nanoparticles with the six polybenzylic dendrons by 1,3-dipolar cycloaddition between their alkynyl groups and the terminal azido groups of the thiols. A high efficiency of the cycloaddition process (47-69%) was confirmed by several experimental techniques and no decomposition or aggregation phenomena were detected in the dendron-coated nanoparticles. The involved mechanism and the resulting percentage composition of the final materials are discussed. The results of the ulterior growth of the nanoparticles by thermal treatment are influenced by the size and the shape of the dendron and the temperature of the process. The structures of the final nanoparticles were investigated by TEM, DSC, TGA, NMR and UV-Vis spectroscopy. These nanoparticles do not show liquid crystal properties. However, a melting process between a crystalline and a fluid phase is observed. In the solid phase, the nanomaterials prepared show a short-range interaction between nanoparticles with a 2D local hexagonal order. A near-field effect was observed in the UV-vis spectra by coupling of different surface plasmon resonance bands (SPR) probably due to the short-range interactions. The main novelty of this work lies in the scarcity of previous studies of gold nanoparticles coated with dendrons forming themselves columnar mesophases. Most of the studies reported in the literature deal with gold nanoparticles coated with calamitic mesogens. Additionally, the effect of the thermal treatment, which in a previous paper was shown to increase the mean size of the nanoparticles without increasing their size polydispersity, has been studied in these materials.
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Affiliation(s)
- José Antonio Ulloa
- Departamento de Polímeros, Facultad de Ciencias Químicas, Universidad de Concepción, Casilla 160-C, Calle Edmundo Larenas 129, Concepción 4070371, Chile
| | - Joaquín Barberá
- Departamento de Química Orgánica, Facultad de Ciencias, Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
| | - José Luis Serrano
- Departamento de Química Orgánica, Facultad de Ciencias, Instituto de Nanociencia y Materiales de Aragón (INMA), CSIC-Universidad de Zaragoza, 50009 Zaragoza, Spain
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Iguarbe V, Romero P, Barberá J, Elduque A, Giménez R. Dual liquid Crystalline/Gel behavior with AIE effect promoted by Self-assembly of pyrazole dendrons. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.120109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
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Safety Challenges and Application Strategies for the Use of Dendrimers in Medicine. Pharmaceutics 2022; 14:pharmaceutics14061292. [PMID: 35745863 PMCID: PMC9230513 DOI: 10.3390/pharmaceutics14061292] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 06/11/2022] [Accepted: 06/15/2022] [Indexed: 01/07/2023] Open
Abstract
Dendrimers are used for a variety of applications in medicine but, due to their host–guest and entrapment characteristics, are particularly used for the delivery of genes and drugs. However, dendrimers are intrinsically toxic, thus creating a major limitation for their use in biological systems. To reduce such toxicity, biocompatible dendrimers have been designed and synthesized, and surface engineering has been used to create advantageous changes at the periphery of dendrimers. Although dendrimers have been reviewed previously in the literature, there has yet to be a systematic and comprehensive review of the harmful effects of dendrimers. In this review, we describe the routes of dendrimer exposure and their distribution in vivo. Then, we discuss the toxicity of dendrimers at the organ, cellular, and sub-cellular levels. In this review, we also describe how technology can be used to reduce dendrimer toxicity, by changing their size and surface functionalization, how dendrimers can be combined with other materials to generate a composite formulation, and how dendrimers can be used for the diagnosis of disease. Finally, we discuss future challenges, developments, and research directions in developing biocompatible and safe dendrimers for medical purposes.
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Abstract
Many structures in nature look symmetric, but this is not completely accurate, because absolute symmetry is close to death. Chirality (handedness) is one form of living asymmetry. Chirality has been extensively investigated at different levels. Many rules were coined in attempts made for many decades to have control over the selection of handedness that seems to easily occur in nature. It is certain that if good control is realized on chirality, the roads will be ultimately open towards numerous developments in pharmaceutical, technological, and industrial applications. This tutorial review presents a report on chirality from single molecules to supramolecular assemblies. The realized functions are still in their infancy and have been scarcely converted into actual applications. This review provides an overview for starters in the chirality field of research on concepts, common methodologies, and outstanding accomplishments. It starts with an introductory section on the definitions and classifications of chirality at the different levels of molecular complexity, followed by highlighting the importance of chirality in biological systems and the different means of realizing chirality and its inversion in solid and solution-based systems at molecular and supramolecular levels. Chirality-relevant important findings and (bio-)technological applications are also reported accordingly.
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Lu YC, Hsu YT, Yang TY, Liou IC, Wang SW, Huang PC, Lee JJ, Lai LL, Hsu HF. Converting non-Mesogenic to Mesogenic Stacking of Amino- s-Triazine-Based Dendrons with p-CN Phenyl Unit by Eliminating Peripheral Dipole. NANOMATERIALS 2022; 12:nano12020185. [PMID: 35055204 PMCID: PMC8782037 DOI: 10.3390/nano12020185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Revised: 12/20/2021] [Accepted: 12/31/2021] [Indexed: 12/04/2022]
Abstract
Three new amino-s-triazine-based dendrons, 1a, 1b, and 1c, containing an aryl-CN moiety in the dendritic skeleton were prepared in 72–81% yields (1a: R1 = − N(n-C8H17)2, R2 = n-OC8H17, 1b: R1 = R2 = − N(n-C8H17)2, 1c: R1 = − N(n-C8H17)2, R2 = − N(n-C4H9)2). Dendrons 1a with N(n-C8H17)2 and n-OC8H17 peripheral substituents, surprisingly, did not show any mesogenic phase during the thermal process. However, non-mesogenic 1a can be converted to mesogenic 1b or 1c by eliminating the peripheral dipole arising from the alkoxy substituent; dendron 1b only comprising the same N(n-C8H17)2 peripheral groups showed a ~25 °C mesogenic range on heating and ~108 °C mesogenic range on cooling. In contrast, dendron 1c possessing different N(n-CmH2m+1)2 (m = 8 versus m = 4) peripheral units, having similar stacking as 1b, exhibited a columnar phase on thermal treatment, but its mesogenic range (~9 and ~66 °C on heating and cooling, respectively) was much narrower than that of 1b, attributed to 1c’s less flexible alkyl chains in the peripheral part of dendron. Dendron 1a with the alkoxy substituent in the peripheral skeleton, creating additional dipole correspondingly, thus, leads to the dendritic molecules having a non-mesogenic stacking. Without the peripheral dipole for intermolecular side-by-side interaction, dendrons 1b and 1c exhibit a columnar phase on thermal treatment because of the vibration from the peripheral alkyl chain.
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Affiliation(s)
- Yao-Chih Lu
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
| | - Yu-Tsz Hsu
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City 251, Taiwan;
| | - Tsung-Yen Yang
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
| | - I-Chun Liou
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
| | - Sheng-Wei Wang
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
| | - Po-Chia Huang
- National Synchrotron Radiation Research Center, No. 101, Hsin-Ann Rd., Hsinchu 300, Taiwan; (P.-C.H.); (J.-J.L.)
| | - Jey-Jau Lee
- National Synchrotron Radiation Research Center, No. 101, Hsin-Ann Rd., Hsinchu 300, Taiwan; (P.-C.H.); (J.-J.L.)
| | - Long-Li Lai
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan; (Y.-C.L.); (T.-Y.Y.); (I.-C.L.); (S.-W.W.)
- Correspondence: (L.-L.L.); (H.-F.H.)
| | - Hsiu-Fu Hsu
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City 251, Taiwan;
- Correspondence: (L.-L.L.); (H.-F.H.)
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Kanth P, Shankar Rao D, Krishna Prasad S, Singh B. Investigation of mesomorphic, photophysical and gelation behavior in aroylhydrazone based liquid crystals: Observation of mesophase crossover phenomena. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2021.117084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Czichy M, Colombo A, Wagner P, Janasik P, Dragonetti C, Raja R, Officer DL, Wang L. Exohedral Functionalization of Fullerene by Substituents Controlling of Molecular Organization for Spontaneous C 60 Dimerization in Liquid Crystal Solutions and in a Bulk Controlled by a Potential. Polymers (Basel) 2021; 13:polym13162816. [PMID: 34451354 PMCID: PMC8401323 DOI: 10.3390/polym13162816] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Revised: 08/13/2021] [Accepted: 08/19/2021] [Indexed: 11/21/2022] Open
Abstract
A study was carried out on the possibility of orderly and spontaneous dimerization at room temperature of C60 cages in fullerene liquid crystal fullerene dyads (R-C60). For this purpose, dyads with a structural elements feature supporting π-stacking and Van der Waals interactions were tested, due to the presence of terthiophene donors linked through an α-position or dodecyloxy chains. In addition, this possibility was also tested and compared to dyads with shorter substituents and the pristine C60. Research has shown that only in dyads with the features of liquid crystals, π-dimerization of C60 units occurs, which was verified by electrochemical and spectroelectrochemical (ESR) measurements. Cyclic voltammetry and differential voltammetry studies reveal π-dimerization in liquid crystal dyad solution even without the possibility of previous polymerization (cathodic or anodic) under conditions in the absence of irradiation and without the availability of reaction initiators, and even with the use of preliminary homogenization. These dyads undergo six sequential, one-electron reductions of π-dimer (R-C60···C60-R), where two electrons are added successively to each of the two fullerene cages and first form two radical anion system (R-C60)•−(R-C60)•− without pairing with the characteristics of two doublets. Similarly, the second reductions of π-dimer occur at potentials that are close to the reduction potential for the conversion to a system of two triplet dianions (R-C60)2−(R-C60)2−. Electron paramagnetic resonance spectra indicate a significant interaction between C60 cages. Interestingly, the strength of intermolecular bonds is so significant that it can overcome Coulombic repulsion, even with such highly charged particles as dianions and trianions. Such behavior has been revealed and studied so far only in covalently bonded C60 dimers.
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Affiliation(s)
- Malgorzata Czichy
- Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland;
- Correspondence:
| | - Alessia Colombo
- Department of Chemistry, University of Milan, UdR dell’INSTM, Via Golgi 19, 20133 Milan, Italy; (A.C.); (C.D.)
| | - Pawel Wagner
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia; (P.W.); (D.L.O.)
| | - Patryk Janasik
- Faculty of Chemistry, Silesian University of Technology, Strzody 9, 44-100 Gliwice, Poland;
| | - Claudia Dragonetti
- Department of Chemistry, University of Milan, UdR dell’INSTM, Via Golgi 19, 20133 Milan, Italy; (A.C.); (C.D.)
| | - Rathinam Raja
- Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan; (R.R.); (L.W.)
| | - David L. Officer
- ARC Centre of Excellence for Electromaterials Science, Intelligent Polymer Research Institute, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia; (P.W.); (D.L.O.)
| | - Leeyih Wang
- Center for Condensed Matter Sciences, National Taiwan University, Taipei 10617, Taiwan; (R.R.); (L.W.)
- Institute of Polymer Science and Engineering, National Taiwan University, Taipei 10617, Taiwan
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Lu YC, Hsu HF, Lai LL. Unconventional Approaches to Prepare Triazine-Based Liquid Crystal Dendrimers. NANOMATERIALS 2021; 11:nano11082112. [PMID: 34443941 PMCID: PMC8399522 DOI: 10.3390/nano11082112] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Revised: 08/13/2021] [Accepted: 08/17/2021] [Indexed: 01/14/2023]
Abstract
Most triazine-based liquid crystalline (LC) dendrimers reported thus far are the main-chain LC macromolecules with long flexible chains at their periphery and attached to internal rigid or semi-rigid frameworks. Their formation of mesogenic phases often depends on the intermolecular face-to-face π-π interactions between dendritic molecules, which are unusual. Their mesogenic phases can also be formed by incorporation of mesogenic units to the dendritic skeletons through long flexible chains, as most side-chain LC dendrimers, in which the peripheral mesogenic units generally play the important roles. For main-chain triazine-based dendrimers, their morphology is maintained by restricted freedom of rigid or semi-rigid connecting units, and their formations of LC phases are therefore not straightforward to be controlled. In this review, we thus describe modulating of the intermolecular face-to-face π-π interactions between the triazine-based dendritic molecules, with the aim of forming LC phases through molecular design.
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Affiliation(s)
- Yao-Chih Lu
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan;
| | - Hsiu-Fu Hsu
- Department of Chemistry, Tamkang University, No. 151, Yingzhuan Rd., New Taipei City 251, Taiwan;
| | - Long-Li Lai
- Department of Applied Chemistry, National Chi Nan University, No. 1 University Rd., Puli, Nantou 545, Taiwan;
- Correspondence:
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Dendrimers: A New Race of Pharmaceutical Nanocarriers. BIOMED RESEARCH INTERNATIONAL 2021; 2021:8844030. [PMID: 33644232 PMCID: PMC7902124 DOI: 10.1155/2021/8844030] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/05/2020] [Revised: 11/12/2020] [Accepted: 01/24/2021] [Indexed: 01/29/2023]
Abstract
Dendrimers are nanosized, symmetrical molecules in which a small atom or group of atoms is surrounded by the symmetric branches known as dendrons. The structure of dendrimers possesses the greatest impact on their physical and chemical properties. They grow outwards from the core-shell which further reacts with monomers having one reactive or two dormant molecules. Dendrimers' unique characteristics such as hyperbranching, well-defined spherical structure, and high compatibility with the biological systems are responsible for their wide range of applications including medical and biomedical areas. Particularly, the dendrimers' three-dimensional structure can incorporate a wide variety of drugs to form biologically active drug conjugates. In this review, we focus on the synthesis, mechanism of drug encapsulations in dendrimers, and their wide applications in drug delivery.
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Silvestrini Fernandes D, Carmo DR. Silsesquioxane Modified with PAMAM Dendrimer and a Bimetallic Complex for Electrochemical Detection of Ascorbic Acid. ELECTROANAL 2021. [DOI: 10.1002/elan.202060228] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Daniela Silvestrini Fernandes
- Department of Physics and Chemistry São Paulo State University “Júlio de Mesquita Filho” – UNESP Av. Brasil, 56, Zip code 15385-000 Ilha Solteira São Paulo Brazil
- Department of Chemistry University of São Paulo - USP Av. Bandeirantes, 3900, Zip code 14040-901 Ribeirão Preto São Paulo Brazil
| | - Devaney Ribeiro Carmo
- Department of Physics and Chemistry São Paulo State University “Júlio de Mesquita Filho” – UNESP Av. Brasil, 56, Zip code 15385-000 Ilha Solteira São Paulo Brazil
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Young CM, Chang CL, Chen YH, Chen CY, Chang YF, Chen HL. Dendrimer-mediated columnar mesophase of surfactants. SOFT MATTER 2021; 17:397-409. [PMID: 33174582 DOI: 10.1039/d0sm01506g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The columnar mesophase, in which the molecular or supramolecular building blocks with rod-like geometry pack into two-dimensional (2D) lattices, is an important class of mesomorphic structure having been found in various liquid crystalline materials for practical applications. The cylindrical micelles assembled by amphiphilic surfactants may also form columnar mesophases with the micelle packing symmetry being tunable by the molecular characteristics of the surfactants. In this study, we demonstrate that a positively charged tree-like polymer, poly(amidoamine) (PAMAM) G4 dendrimer, acted as an effective structure-directing agent for the columnar mesophase of a common anionic surfactant, sodium dodecyl sulfate (SDS), via their electrostatic interaction. By adjusting the dendrimer charge density and the nominal binding ratio (Xn) of SDS to dendrimer, the electrostatic complexes self-assembled to form a body-centered cubic (BCC) sphere phase, wherein the dendrimers were staggered between the interspaces of the SDS spherical micelles packed in the BCC lattice. Four types of 2D columnar mesophase composed of SDS cylindrical micelles and dendrimers were accommodated within the interstitial tunnels, including the hexagonal columnar phase (Colhex), simple rectangular columnar phase (Colsr), oblique columnar phase (Colob) and centered rectangular columnar phase (Colcr). A detailed analysis of the geometry of the dendrimer in the columnar mesophases revealed that the structural transition was governed by the interplay among the lateral and axial deformations of the dendrimer, and the deformation of the SDS micelle cross section for achieving effective charge matching and accommodation of the dendrimer. The present study demonstrated the power of the dendrimer in directing the long-range ordered packing of oppositely charged cylinders to yield a rich structural polymorphism of the columnar mesophase that may be exploited for the development of functional materials.
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Affiliation(s)
- Chih-Mei Young
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | - Chia Lun Chang
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | - Yu-Hsiang Chen
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan. and Material and Chemical Research Laboratories, Industrial Technology Research Institute, Chutung, Hsinchu 31057, Taiwan
| | - Chun-Yu Chen
- Experimental Facility Division, National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan
| | - Yu-Fan Chang
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
| | - Hsin-Lung Chen
- Department of Chemical Engineering, National Tsing Hua University, Hsinchu 30013, Taiwan.
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Crystal packing features of potentially mesomorphic organic compounds; phase transitions in 4-(tetradecyloxy)phenacyl thiocyanate NCS-CH2-C(O)-C6H4-OC14H29. Russ Chem Bull 2021. [DOI: 10.1007/s11172-021-3053-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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15
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Mu B, Li X, Zhao Y, Quan X, Tian W. Processing-Dependent Lamellar Polymorphism of Hyperbranched Liquid-Crystalline Polymer with Variable Light Emission. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c00649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Bin Mu
- Shanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Xun Li
- Shanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Yu Zhao
- Shanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Xuhong Quan
- Shanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
| | - Wei Tian
- Shanxi Key Laboratory of Macromolecular Science and Technology, MOE Key Laboratory of Material Physics and Chemistry under Extraordinary Conditions, School of Chemistry and Chemical Engineering, Northwestern Polytechnical University, Xi’an 710072, China
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16
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Kuz’mina LG, Kalle P, Konstantinov II, Lermontova EK. X-Ray Diffraction and Thermographic Study of Potentially Mesomorphic 4-[4-Octyloxy-2-hydroxybenzylidene)]cyanoaniline. CRYSTALLOGR REP+ 2020. [DOI: 10.1134/s1063774520040148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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17
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Kuz’mina LG, Kalle P, Churakov AV. Mesomorphism and crystal packing of dichotomous compounds; X-ray crystal structure of N-(4-hexyloxybenzylidene)-p-toluidine. Russ Chem Bull 2020. [DOI: 10.1007/s11172-020-2866-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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18
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Neranon K, Alberch L, Ramström O. Design, Synthesis and Self-Assembly of Functional Amphiphilic Metallodendrimers. ChemistryOpen 2020; 9:45-52. [PMID: 31921545 PMCID: PMC6948116 DOI: 10.1002/open.201900298] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/20/2019] [Indexed: 12/16/2022] Open
Abstract
A new family of alkynylated, amphiphilic dendrimers consisting of amidoamine linkers connected to 5,5'-functionalized 2,2'-bipyridine cores has been developed and evaluated in the formation of metallodendrimers of different generations and in self-assembly protocols. A convergent synthetic strategy was applied to provide dumbbell-shaped amphiphilic dendrimers, where the 2,2'-bipyridine cores could be coordinated to FeII centers to afford corresponding metallodendrimers. The ability of the metallic- and non-metallic dendritic structures to self-assemble into functional supramolecular aggregates were furthermore evaluated in aqueous solution. Spherical aggregates with sizes of a few hundred nanometers were generally produced, where controlled disassembly of the metallodendrimers through decomplexation could be achieved.
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Affiliation(s)
- Kitjanit Neranon
- Department of ChemistryRoyal Institute of TechnologyTeknikringen 36S-10044StockholmSweden
| | - Laura Alberch
- Department of ChemistryRoyal Institute of TechnologyTeknikringen 36S-10044StockholmSweden
| | - Olof Ramström
- Department of ChemistryRoyal Institute of TechnologyTeknikringen 36S-10044StockholmSweden
- Department of ChemistryUniversity of Massachusetts LowellOne University AveLowell, MA01854USA
- Department of Chemistry and Biomedical SciencesLinnaeus UniversitySE-39182KalmarSweden
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19
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Albrecht K, Minagawa K, Nakajima S, Kushida S, Yamamoto Y, Kuzume A, Yamamoto K. Nanosphere Formation of π-Conjugated Dendrimers by Simple Precipitation Method. CHEM LETT 2019. [DOI: 10.1246/cl.190511] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Ken Albrecht
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
- JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
- Institute for Materials Chemistry and Engineering, Kyushu University, 6-1 Kasuga-Koen, Kasuga, Fukuoka 816-8580, Japan
| | - Ken Minagawa
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Sae Nakajima
- Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan
| | - Soh Kushida
- Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan
| | - Yohei Yamamoto
- Division of Materials Science, Faculty of Pure and Applied Sciences, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan
- Tsukuba Research Centre for Energy Materials Science (TREMS), University of Tsukuba, 1-1-1 Tennodai, Tsukuba, Ibaraki, Japan
| | - Akiyoshi Kuzume
- JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
| | - Kimihisa Yamamoto
- Laboratory for Chemistry and Life Science, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
- JST-ERATO, Yamamoto Atom Hybrid Project, Tokyo Institute of Technology, Yokohama, Kanagawa 226-8503, Japan
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20
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Li Y, Fan F, Wang J, Cseh L, Xue M, Zeng X, Ungar G. New Type of Columnar Liquid Crystal Superlattice in Double‐Taper Ionic Minidendrons. Chemistry 2019; 25:13739-13747. [DOI: 10.1002/chem.201902639] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 07/30/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Ya‐Xin Li
- Department of Materials Science and EngineeringUniversity of Sheffield Sheffield S1 3JD UK
| | - Fang‐Fang Fan
- Department of PhysicsZhejiang Sci-Tech University Hangzhou 310018 P.R. China
| | - Jie Wang
- Department of PhysicsZhejiang Sci-Tech University Hangzhou 310018 P.R. China
- State Key Laboratory for Mechanical Behavior of MaterialsSchool of MaterialsXi'an Jiaotong University Xi'an 710049 P.R. China
| | - Liliana Cseh
- State Key Laboratory for Mechanical Behavior of MaterialsSchool of MaterialsXi'an Jiaotong University Xi'an 710049 P.R. China
- Romanian Academy, “Coriolan Dragulescu” Institute of Chemistry Timisoara 300223 Romania
| | - Min Xue
- Department of PhysicsZhejiang Sci-Tech University Hangzhou 310018 P.R. China
| | - Xiang‐Bing Zeng
- Department of Materials Science and EngineeringUniversity of Sheffield Sheffield S1 3JD UK
| | - Goran Ungar
- State Key Laboratory for Mechanical Behavior of MaterialsSchool of MaterialsXi'an Jiaotong University Xi'an 710049 P.R. China
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21
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Low-frequency dielectric spectroscopy and distinct relaxation modes in smectic phases of liquid crystal dimers. J Mol Liq 2019. [DOI: 10.1016/j.molliq.2019.01.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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22
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Fall WS, Yen MH, Zeng X, Cseh L, Liu Y, Gehring GA, Ungar G. Molecular ejection transition in liquid crystal columns self-assembled from wedge-shaped minidendrons. SOFT MATTER 2018; 15:22-29. [PMID: 30411766 DOI: 10.1039/c8sm01851k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Fan-shaped molecules with aromatic head-groups and two or more flexible pendant chains often self-assemble into columns that form columnar liquid crystals by packing on a 2d lattice. Such dendrons or minidendrons are essential building blocks in a large number of synthetic self-assembled systems and organic device materials. Here we report a new type of phase transition that occurs between two hexagonal columnar phases, Colh1 and Colh2, of Na-salt of 3,4,5-tris-dodecyloxy benzoic acid. Interestingly, the transition does not change the symmetry, which is p6mm in both phases, but on heating it involves a quantised drop in the number of molecules n in the cross-section of a column. The drop is from 4 to 3.5, with a further continuous decrease toward n = 3 as temperature increases further above Tc. The finding is based on evidence from X-ray diffraction. Using a transfer matrix formulation for the interactions within a column, with small additional mean field terms, we describe quantitatively the observed changes in terms of intermolecular forces responsible for the formation of supramolecular columns. The driving force behind temperature-induced molecular ejection from the columns is the increase in conformational disorder and the consequent lateral expansion of the alkyl chains. The asymmetry of the transition is due to the local order between 4-molecule discs giving extra stability to purely n = 4 columns.
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Affiliation(s)
- William S Fall
- Department of Physics, Zhejiang Sci-Tech University, Xiasha College Park, Hangzhou 310018, China and Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, UK.
| | - Ming-Huei Yen
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK.
| | - Xiangbing Zeng
- Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK.
| | - Liliana Cseh
- Institute of Chemistry Timisoara of Romanian Academy, Timisoara-300223, Romania
| | - Yongsong Liu
- Department of Physics, Zhejiang Sci-Tech University, Xiasha College Park, Hangzhou 310018, China
| | - Gillian A Gehring
- Department of Physics and Astronomy, University of Sheffield, Sheffield S3 7RH, UK.
| | - Goran Ungar
- Department of Physics, Zhejiang Sci-Tech University, Xiasha College Park, Hangzhou 310018, China and Department of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, UK.
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23
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Pieper P, Russo V, Heinrich B, Donnio B, Deschenaux R. Liquid-Crystalline Tris[60]fullerodendrimers. J Org Chem 2018; 83:3208-3219. [PMID: 29493239 DOI: 10.1021/acs.joc.8b00093] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Liquid-crystalline tris[60]fullerodendrimers based on first- and second-generation poly(arylester)dendrons carrying cyanobiphenyl mesogens were synthesized for the first time by the olefin cross-metathesis reaction between type I (terminal) and type II (α,β-unsaturated carbonyl) olefinic precursors, using a second-generation Grubbs or Hoveyda-Grubbs catalyst. The modular synthetic approach developed here also allowed the selective preparation of the [60]fullerene-free, mono[60]fullerodendrimer, and bis[60]fullerodendrimer derivatives from the appropriate precursors. As revealed by polarized optical microscopy, differential scanning calorimetry, and small-angle X-ray scattering, all of the materials displayed liquid-crystalline properties. In agreement with the nature of the dendritic building blocks, the emergence of lamellar mesophases (smectic C and/or smectic A phases), with the segregation of the various constitutive parts, was systematically observed. The small variation of the mesomorphic temperature range and of the mesophase stability suggested that the mesomorphism is essentially dominated by the dendrimer itself and is regulated by a subtle adaptive mechanism, in which the proportion of monolayering and bilayering arrangements of the multisegregated lamellar mesophases is modified in order to compensate the space requirements of each of the elementary building blocks, namely, the [60]fullerene units, the cyanobiphenyl mesogens, and the dendritic matrix.
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Affiliation(s)
- Pauline Pieper
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , 2000 Neuchâtel , Switzerland
| | - Virginie Russo
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , 2000 Neuchâtel , Switzerland
| | - Benoît Heinrich
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 , CNRS-Université de Strasbourg , 23 rue du Loess, BP43 , 67034 CEDEX 2 Strasbourg , France
| | - Bertrand Donnio
- Institut de Physique et Chimie des Matériaux de Strasbourg (IPCMS), UMR 7504 , CNRS-Université de Strasbourg , 23 rue du Loess, BP43 , 67034 CEDEX 2 Strasbourg , France
| | - Robert Deschenaux
- Institut de Chimie , Université de Neuchâtel , Avenue de Bellevaux 51 , 2000 Neuchâtel , Switzerland
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24
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Han L, Ma H, Zhu S, Liu P, Shen H, Yang L, Tan R, Huang W, Li Y. Effect of Topology and Composition on Liquid Crystal Order and Self-Assembly Performances Driven by Asynchronously Controlled Grafting Density. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01952] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Li Han
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Hongwei Ma
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Siqi Zhu
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Pibo Liu
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Heyu Shen
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Lincan Yang
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Rui Tan
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Wei Huang
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
| | - Yang Li
- State Key Laboratory
of Fine
Chemicals, Department of Polymer Science and Engineering, Liaoning
key Laboratory of Polymer Science and Engineering, School of Chemical
Engineering, Dalian University of Technology, Dalian Liaoning 116024, China
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25
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Gan KP, Yoshio M, Sugihara Y, Kato T. Guanine-oligothiophene conjugates: liquid-crystalline properties, photoconductivities and ion-responsive emission of their nanoscale assemblies. Chem Sci 2017; 9:576-585. [PMID: 29629121 PMCID: PMC5869320 DOI: 10.1039/c7sc03764c] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Accepted: 10/24/2017] [Indexed: 11/27/2022] Open
Abstract
Liquid-crystalline conjugated guanine–oligothiophene derivatives show electron or ambipolar carrier transport properties and ion-induced phase transition accompanied by a luminescence colour change.
We here report the supramolecular self-assembly of hydrogen-bonded motifs for the development of nanostructured materials that exhibit dynamic functions such as stimuli-responsive properties and molecular recognition behaviour. We have designed and synthesised new thermotropic bicontinuous and columnar liquid-crystalline (LC) guanine–oligothiophene conjugates tethered with lipophilic chains, which exhibit ionic, electronic and photoluminescence properties. Their potassium salt complexes self-assemble into thermotropic columnar LC phases. Time-of-flight photoconductivity measurements have revealed that the guanine–oligothiophene conjugates in the LC states possess charge transport abilities with either electron or ambipolar mobility values of 10–4 to 10–3 cm2 V–1 s–1. Furthermore, we have found that the complexation of potassium ions with the guanine motif could lead not only to structural change and thermal stabilization of the LC phases but also to a photoluminescence colour change in the solid states. The strategy presented in this work could lead to the design of new functional LC materials that could potentially be applicable as sensors and electronic devices.
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Affiliation(s)
- Kian Ping Gan
- Department of Chemistry and Biotechnology , School of Engineering , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan . ; ; Tel: +81-3-5841-7440
| | - Masafumi Yoshio
- Department of Chemistry and Biotechnology , School of Engineering , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan . ; ; Tel: +81-3-5841-7440
| | - Yuki Sugihara
- Department of Chemistry and Biotechnology , School of Engineering , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan . ; ; Tel: +81-3-5841-7440
| | - Takashi Kato
- Department of Chemistry and Biotechnology , School of Engineering , The University of Tokyo , Hongo, Bunkyo-ku , Tokyo 113-8656 , Japan . ; ; Tel: +81-3-5841-7440
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26
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Liu CY, Chen HL. Undulating the Lamellar Interface of Polymer–Surfactant Complex by Dendrimer. Macromolecules 2017. [DOI: 10.1021/acs.macromol.7b01122] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Chih-Ying Liu
- Department of Chemical Engineering
and Frontier Research Center on Fundamental and Applied Sciences of
Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Hsin-Lung Chen
- Department of Chemical Engineering
and Frontier Research Center on Fundamental and Applied Sciences of
Matters, National Tsing Hua University, Hsinchu 30013, Taiwan
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27
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Guerra S, Dutronc T, Terazzi E, Buchwalder KL, Guénée L, Deschenaux R, Eliseeva SV, Petoud S, Piguet C. Taking a last look at lanthanidomesogens? The use of basic thermodynamics for programming the temperature domains of existence of luminescent liquid crystals. Coord Chem Rev 2017. [DOI: 10.1016/j.ccr.2016.11.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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28
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Ishida M, Furuyama T, Lim JM, Lee S, Zhang Z, Ghosh SK, Lynch VM, Lee C, Kobayashi N, Kim D, Sessler JL. Structural, Photophysical, and Magnetic Circular Dichroism Studies of Three Rigidified
meso
‐Pentafluorophenyl‐Substituted Hexaphyrin Analogues. Chemistry 2017; 23:6682-6692. [DOI: 10.1002/chem.201700759] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2017] [Indexed: 01/14/2023]
Affiliation(s)
- Masatoshi Ishida
- Department of Chemistry Yonsei University Seoul 03722 Korea
- Department of Chemistry and Biochemistry Graduate School of Engineering, and Center for Molecular Systems Kyushu University Fukuoka 819-0395 Japan
| | - Taniyuki Furuyama
- Department of Chemistry Graduate School of Science Tohoku University Sendai 980-8578 Japan
- Graduate School of Natural Science and Technology Kanazawa University, Kakuma-machi Kanazawa 920-1192 Japan
| | - Jong Min Lim
- Department of Chemistry Yonsei University Seoul 03722 Korea
- Physical and Theoretical Chemistry Laboratory University of Oxford South Parks Road Oxford OX1 3QZ UK
| | - Sangsu Lee
- Department of Chemistry Yonsei University Seoul 03722 Korea
| | - Zhan Zhang
- Department of Chemistry The University of Texas at Austin 105 E. 24th Street-A5300 Austin Texas 78712-1224 USA
- Institute for Supramolecular and Catalytic Chemistry Shanghai University Shanghai 200444 P. R. China
| | - Sudip K. Ghosh
- Department of Chemistry Yonsei University Seoul 03722 Korea
- Department of Chemistry Techno India University, EM/4, Sector-V, Salt Lake Kolkata 700091 West Bengal India
| | - Vincent M. Lynch
- Department of Chemistry The University of Texas at Austin 105 E. 24th Street-A5300 Austin Texas 78712-1224 USA
| | - Chang‐Hee Lee
- Department of Chemistry Kangwon National University Chun-Cheon 24341 Korea
| | - Nagao Kobayashi
- Department of Chemistry Graduate School of Science Tohoku University Sendai 980-8578 Japan
- Faculty of Textile Science and Technology Shinshu University, Tokida Ueda 386-8567 Japan
| | - Dongho Kim
- Department of Chemistry Yonsei University Seoul 03722 Korea
| | - Jonathan L. Sessler
- Department of Chemistry Yonsei University Seoul 03722 Korea
- Department of Chemistry The University of Texas at Austin 105 E. 24th Street-A5300 Austin Texas 78712-1224 USA
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29
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Yao X, Cseh L, Zeng X, Xue M, Liu Y, Ungar G. Body-centred cubic packing of spheres - the ultimate thermotropic assembly mode for highly divergent dendrons. NANOSCALE HORIZONS 2017; 2:43-49. [PMID: 32260676 DOI: 10.1039/c6nh00155f] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
We have synthesized sodium tris(alkoxy)benzoates in which one of the three alkyl chains branches further into three C18H37 chains. These AB5 hyperbranched minidendrons melt directly into a body-centred cubic (BCC) mesophase formed by spherical "micelles". In contrast, their non-branched counterparts display various mesophases before they turn into BCC upon heating. This agrees with the predictions from a numerical geometric model that relates the shape of the molecular wedge to the type of mesophase they adopt. The spheres were found to shrink in volume upon heating and expand upon cooling, as molecules, in some cases nearly half of them, are ejected and reintegrated in the spheres. The ejection of dendrons is caused by their lateral thermal expansion. The BCC appears to be the ultimate mesophase for the extremely divergent wedges such as the hyperbranched minidendrons. In dendrons with chains of unequal length, the sphere size is fixed by the shorter chains, the longer ones back-folding or interdigitating to effectively widen the wedge. This new understanding of their assembly will help in designing new dendrons, e.g. for better encapsulation of guest molecules.
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Affiliation(s)
- Xiaohong Yao
- Department of Physics, Zhejiang Sci-Tech University, Xiasha College Park, Hangzhou 310018, China
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30
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Xiao Y, Zeng D, Mazur LM, Castiglione A, Lacaze E, Heinrich B, Donnio B, Kreher D, Attias AJ, Ribierre JC, Mathevet F. A new class of nanostructured supramolecular organic semiconductors based on intertwined multi-lamellar co-assemblies in π-conjugated liquid-crystalline side-chain polymers. Polym J 2016. [DOI: 10.1038/pj.2016.107] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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31
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Samosudova YS, Markin AV, Smirnova NN, Ogurtsov TG, Boiko NI, Shibaev VP. Thermodynamic properties of a liquid crystal carbosilane dendrimer. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2016. [DOI: 10.1134/s0036024416110224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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32
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A Porphyrin-Based Discrete Tetragonal Prismatic Cage: Host-Guest Complexation and Its Application in Tuning Liquid-Crystalline Behavior. Macromol Rapid Commun 2016; 37:1540-7. [DOI: 10.1002/marc.201600280] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Revised: 06/03/2016] [Indexed: 12/23/2022]
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33
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Gu H, Ciganda R, Castel P, Ruiz J, Astruc D. Living ROMP Syntheses and Redox Properties of Triblock Metallocopolymer Redox Cascades. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b01046] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Haibin Gu
- Key
Laboratory of Leather Chemistry and Engineering of Ministry of Education, Sichuan University, Chengdu 610065, P. R. China
- ISM,
UMR CNRS No. 5255, University of Bordeaux, 33405 Talence, Cedex, France
| | - Roberto Ciganda
- ISM,
UMR CNRS No. 5255, University of Bordeaux, 33405 Talence, Cedex, France
| | - Patricia Castel
- ISM,
UMR CNRS No. 5255, University of Bordeaux, 33405 Talence, Cedex, France
| | - Jaime Ruiz
- ISM,
UMR CNRS No. 5255, University of Bordeaux, 33405 Talence, Cedex, France
| | - Didier Astruc
- ISM,
UMR CNRS No. 5255, University of Bordeaux, 33405 Talence, Cedex, France
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34
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Yen MH, Chaiprapa J, Zeng X, Liu Y, Cseh L, Mehl GH, Ungar G. Added Alkane Allows Thermal Thinning of Supramolecular Columns by Forming Superlattice—An X-ray and Neutron Study. J Am Chem Soc 2016; 138:5757-60. [DOI: 10.1021/jacs.6b01172] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Ming-Huei Yen
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, U.K
| | - Jitrin Chaiprapa
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, U.K
| | - Xiangbing Zeng
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, U.K
| | - Yongsong Liu
- Department
of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, China
| | - Liliana Cseh
- Department
of Chemistry, University of Hull, Hull HU6 7RX, U.K
- Institute of Chemistry, Timisoara of Romanian Academy, Timisoara 300223, Romania
| | - Georg H. Mehl
- Department
of Chemistry, University of Hull, Hull HU6 7RX, U.K
| | - Goran Ungar
- Department
of Materials Science and Engineering, University of Sheffield, Sheffield S1 3JD, U.K
- Department
of Physics, Zhejiang Sci-Tech University, Hangzhou 310018, China
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35
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Guerra S, Nguyen TLA, Furrer J, Nierengarten JF, Barberá J, Deschenaux R. Liquid-Crystalline Dendrimers Designed by Click Chemistry. Macromolecules 2016. [DOI: 10.1021/acs.macromol.6b00432] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Sebastiano Guerra
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
| | - Thi Le Anh Nguyen
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
| | - Julien Furrer
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
| | - Jean-François Nierengarten
- Laboratoire
de Chimie des Matériaux Moléculaires, Université
de Strasbourg et CNRS (UMR 7509), Ecole Européenne de Chimie, Polymères et Matériaux, 25 rue Becquerel, 67087 Strasbourg, Cedex
2, France
| | - Joaquín Barberá
- Departamento
de Química Orgánica, Facultad de Ciencias-Instituto
de Ciencia de Materiales de Aragón, Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Robert Deschenaux
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, CH-2000 Neuchâtel, Switzerland
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36
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Goossens K, Lava K, Bielawski CW, Binnemans K. Ionic Liquid Crystals: Versatile Materials. Chem Rev 2016; 116:4643-807. [PMID: 27088310 DOI: 10.1021/cr400334b] [Citation(s) in RCA: 411] [Impact Index Per Article: 51.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This Review covers the recent developments (2005-2015) in the design, synthesis, characterization, and application of thermotropic ionic liquid crystals. It was designed to give a comprehensive overview of the "state-of-the-art" in the field. The discussion is focused on low molar mass and dendrimeric thermotropic ionic mesogens, as well as selected metal-containing compounds (metallomesogens), but some references to polymeric and/or lyotropic ionic liquid crystals and particularly to ionic liquids will also be provided. Although zwitterionic and mesoionic mesogens are also treated to some extent, emphasis will be directed toward liquid-crystalline materials consisting of organic cations and organic/inorganic anions that are not covalently bound but interact via electrostatic and other noncovalent interactions.
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Affiliation(s)
- Karel Goossens
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
| | - Kathleen Lava
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium.,Department of Organic and Macromolecular Chemistry, Ghent University , Krijgslaan 281 S4, B-9000 Ghent, Belgium
| | - Christopher W Bielawski
- Center for Multidimensional Carbon Materials (CMCM), Institute for Basic Science (IBS) , Ulsan 689-798, Republic of Korea.,Department of Chemistry and Department of Energy Engineering, Ulsan National Institute of Science and Technology (UNIST) , Ulsan 689-798, Republic of Korea
| | - Koen Binnemans
- Department of Chemistry, KU Leuven , Celestijnenlaan 200F, P.O. Box 2404, B-3001 Heverlee, Belgium
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37
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Türkçü HN, Ocak H, Gürbüz MU, Çakar F, Bilgin-Eran B, Tülü M. A study of dendritic ionic liquid crystals: Using (S)-4-citronellyloxybenzoic acid and polypropylene imine dendrimers. J Mol Liq 2016. [DOI: 10.1016/j.molliq.2015.12.070] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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38
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Workineh ZG, Vanakaras AG. Homogeneous alignment of liquid crystalline dendrimers confined in a slit-pore. A simulation study. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2016; 28:115002. [PMID: 26903080 DOI: 10.1088/0953-8984/28/11/115002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
In this work we present results from isobaric-isothermal (NPT) Monte Carlo simulation studies of model liquid crystalline dendrimer (LCDr) systems confined in a slit-pore made of two parallel flat walls. The dendrimers are modelled as a collection of spherical and ellipsoidal particles corresponding to the junction points of the dendritic core and to the mesogenic units respectively. Assuming planar uniform (unidirectional) soft anchoring of the mesogenic units on the substrates we investigate the conformational and alignment properties of the LCDr system at different thermodynamic state points. Tractable coarse grained force fields have been used from our previous work. At low pressures the interior of the pore is almost empty, since almost all LCDrs are anchored to the substrates forming two-dimensional smectic-like structures with the mesogens aligned along the aligning direction of the substrates. As the pressure grows the LCDrs occupy the whole pore. However, even at low temperatures, the smectic organization does not transmit in the interior of the pore and is preserved for distances of 2-3 mesogenic diameters from the walls. For this reason, the global orientational order decreases with increasing pressure (density). In the vicinity (2-3 mesogenic diameters) of the pore walls, mesogenic units preserve the smectic structure whose layers are separated by layers of spherical beads. In this region individual LCDrs possess a rod like shape.
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Affiliation(s)
- Zerihun G Workineh
- Department of Materials Science and Engineering, Bahir Dar University, Bahir Dar, Ethiopia
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39
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Tanphibal P, Tashiro K, Chirachanchai S. Molecular assembly of highly symmetric molecules under a hydrogen bond framework controlled by alkyl building blocks: a simple approach to fine-tune nanoscale structures. SOFT MATTER 2016; 12:486-491. [PMID: 26482133 DOI: 10.1039/c5sm02005k] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
To date, molecular assemblies under the contribution of hydrogen bond in combination with weak interactions and their consequent morphologies have been variously reported; however, how the systematic variation of the structure can fine-tune the morphologies has not yet been answered. The present work finds an answer through highly symmetric molecules, i.e. diamine-based benzoxazine dimers. This type of molecule develops unique molecular assemblies with their networks formed by hydrogen bonds at the terminal, while, at the same time, their hydrogen bonded frameworks are further controlled by the hydrophobic segment at the center of the molecule. When this happens, slight differences in hydrophobic alkyl chain lengths (, , and ) bring a significant change to the molecular assemblies, thus resulting in tunable morphologies, i.e. spheres, needles and dendrites. The superimposition between the crystal lattice obtained from X-ray single crystal analysis and the electron diffraction pattern obtained from transmission electron microscopy allows us to identify the molecular alignment from single molecules to self-assembly until the morphologies developed. The present work, for the first time, shows the case of symmetric molecules, where the hydrophobic building block controls the hydrogen bond patterns, leading to the variation of molecular assemblies with tunable morphologies.
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Affiliation(s)
- Pimsai Tanphibal
- The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kohji Tashiro
- Department of Future Industry-oriented Basic Science and Materials, Toyota Technological Institute, Tempaku, Nagoya 468-8511, Japan.
| | - Suwabun Chirachanchai
- The Petroleum and Petrochemical College, Chulalongkorn University, Bangkok 10330, Thailand and Center for Petroleum, Petrochemical, and Advance Materials, Chulalongkorn University, Bangkok 10330, Thailand.
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40
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Pan S, Mu B, Wu B, Shi Z, Chen D. Side-Chain Liquid Crystalline Polymers: Controlled Synthesis and Hierarchical Structure Characterization. LIQUID CRYSTALLINE POLYMERS 2016:131-172. [DOI: 10.1007/978-3-319-22894-5_5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/01/2023]
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Fedeli E, Hernández-Aínsa S, Lancelot A, González-Pastor R, Calvo P, Sierra T, Serrano JL. Nanoobjects formed by ionic PAMAM dendrimers: hydrophilic/lipophilic modulation and encapsulation properties. SOFT MATTER 2015; 11:6009-6017. [PMID: 26126988 DOI: 10.1039/c5sm01153a] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this paper, we present the preparation and properties of some ionic PAMAM derivatives, which combine hydrophilic and lipophilic carboxylic acid chains as counter-ions for all protonable inner and outer amino groups. The amphiphilic nature of the final ionic codendrimers and, hence, their self-assembling features can be modulated by using different ratios between hydrophilic and lipophilic chains. In the bulk, these new materials self-organize into smectic A liquid crystal phases. In water, they self-assemble into different types of nano-objects depending on the molecular composition. The study of the morphology of these nano-structures, their cytotoxicity and their capability to encapsulate a lipophilic anticancer drug are reported herein. Some of these nanoobjects are non-cytotoxic and present good drug trapping ability, which make them interesting nanocarriers for applications in nanotechnology and biomedicine.
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Affiliation(s)
- E Fedeli
- PharmaMar S.L., 28770 Colmenar Viejo (Madrid), Spain
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Abstract
Star-branched molecular architectures lend themselves to convergent synthesis strategies for creating materials that combine three or more functional modalities, but these approaches require a core moiety with several reactive groups that are orthogonal to one another. The direct synthesis of three-arm, star-branched mesogens has been investigated via the Passerini three-component reaction to demonstrate how multicomponent reactions circumvent the need to identify and synthesize specialized branched core molecules.
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Affiliation(s)
- Shuang Song
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
| | - Jonathan G Rudick
- Department of Chemistry, Stony Brook University, Stony Brook, New York 11794-3400, United States
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44
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Matraszek J, Zapala J, Mieczkowski J, Pociecha D, Gorecka E. 1D, 2D and 3D liquid crystalline phases formed by bent-core mesogens. Chem Commun (Camb) 2015; 51:5048-51. [PMID: 25708234 DOI: 10.1039/c4cc10234g] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The type of the mesophase is altered by a small change in the molecular architecture, i.e. increasing the number of alkyl chains attached to the mesogenic core at terminal positions. Lamellar (1D) and columnar (2D) phases are formed for molecules with one and three terminal chains, respectively. For those with two chains 3D phases are observed with either cubic or triclinic symmetry structure.
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Affiliation(s)
- J Matraszek
- Department of Chemistry, University of Warsaw, ul. Pasteura 1, 02-089 Warsaw, Poland.
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45
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Kim DY, Park M, Lee SA, Kim S, Hsu CH, Kim N, Kuo SW, Yoon TH, Jeong KU. Hierarchical superstructures from a star-shaped molecule consisting of a cyclic oligosiloxane with cyanobiphenyl moieties. SOFT MATTER 2015; 11:58-68. [PMID: 25407404 DOI: 10.1039/c4sm02239d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Unconventional star-shaped liquid crystals (abbreviated as SiLCs) were successfully synthesized by chemically connecting four cyanobiphenyl anisotropic mesogens to the periphery of a super-hydrophobic and ultra-flexible cyclic tetramethyltetrasiloxane ring with flexible hexyl chains. Based on the combined experimental techniques of differential scanning calorimetry (DSC), cross-polarized optical microscopy (POM), solid-state carbon-13 ((13)C) nuclear magnetic resonance (NMR) spectroscopy and one-dimensional (1D) wide-angle X-ray diffraction (WAXD), it was found that the SiLC molecule exhibited the monotropic phase transition from a LC phase to a crystalline phase. The crystalline phase was only detected during slow heating processes above its glass transition temperature, while a LC phase was formed both during cooling and during heating processes. The hierarchical superstructures were identified from the structure-sensitive 2D WAXD of the macroscopically oriented SiLC film and confirmed by selected area electron diffraction (SAED) of the SiLC single crystals. The molecular packing symmetry in the monoclinic unit cell was further investigated by computer simulations on the real and reciprocal spaces. Macroscopically oriented SiLC hierarchical superstructures on the different length scales may provide the targeted physical properties, which can allow us to apply SiLC molecules in the fields of electro-optical devices and nonlinear optics.
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Affiliation(s)
- Dae-Yoon Kim
- Department of Polymer-Nano Science and Technology & Polymer Materials Fusion Research Center, Chonbuk National University, Jeonju, Jeonbuk 561-756, Korea.
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Sakuda J, Yoshio M, Ichikawa T, Ohno H, Kato T. 2D assemblies of ionic liquid crystals based on imidazolium moieties: formation of ion-conductive layers. NEW J CHEM 2015. [DOI: 10.1039/c5nj00085h] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organization of imidazolium ionic liquids into 2D ion-conductive pathways enhances the ionic conductivity of the imidazolium-based ionic liquid crystals.
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Affiliation(s)
- Junji Sakuda
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Masafumi Yoshio
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
| | - Takahiro Ichikawa
- Department of Biotechnology
- Tokyo University of Agriculture and Technology
- Tokyo 184-8588
- Japan
| | - Hiroyuki Ohno
- Department of Biotechnology
- Tokyo University of Agriculture and Technology
- Tokyo 184-8588
- Japan
| | - Takashi Kato
- Department of Chemistry and Biotechnology
- School of Engineering
- The University of Tokyo
- Tokyo 113-8656
- Japan
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47
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Pitto-Barry A, Barry NPE, Russo V, Heinrich B, Donnio B, Therrien B, Deschenaux R. Designing Supramolecular Liquid-Crystalline Hybrids from Pyrenyl-Containing Dendrimers and Arene Ruthenium Metallacycles. J Am Chem Soc 2014; 136:17616-25. [DOI: 10.1021/ja510338r] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Anaïs Pitto-Barry
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, 2000 Neuchâtel, Switzerland
| | - Nicolas P. E. Barry
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, 2000 Neuchâtel, Switzerland
| | - Virginie Russo
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, 2000 Neuchâtel, Switzerland
| | - Benoît Heinrich
- Institut
de Physique et Chimie des Matériaux de Strasbourg (IPCMS),
UMR 7504, CNRS−Université de Strasbourg, 23 rue
du Loess, BP43, 67034 Strasbourg cedex 2, France
| | - Bertrand Donnio
- Institut
de Physique et Chimie des Matériaux de Strasbourg (IPCMS),
UMR 7504, CNRS−Université de Strasbourg, 23 rue
du Loess, BP43, 67034 Strasbourg cedex 2, France
- Complex
Assemblies of Soft Matter Laboratory (COMPASS), UMI 3254, CNRS/Solvay/University of Pennsylvania, CRTB, 350 George Patterson Boulevard, Bristol, Pennsylvania 19007, United States
| | - Bruno Therrien
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, 2000 Neuchâtel, Switzerland
| | - Robert Deschenaux
- Institut
de Chimie, Université de Neuchâtel, Avenue de Bellevaux 51, 2000 Neuchâtel, Switzerland
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Gracia I, Feringán B, Serrano JL, Termine R, Golemme A, Omenat A, Barberá J. Functional Carbazole Liquid-Crystal Block Codendrimers with Optical and Electronic Properties. Chemistry 2014; 21:1359-69. [DOI: 10.1002/chem.201404555] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Indexed: 11/06/2022]
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49
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Hincapié CA, Sebastián RM, Barberá J, Serrano JL, Sierra T, Majoral JP, Caminade AM. Supermolecular Columnar Liquid-Crystalline Phosphorus Dendrimers Decorated with Sulfonamide Derivatives. Chemistry 2014; 20:17047-58. [DOI: 10.1002/chem.201402539] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2014] [Indexed: 12/19/2022]
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50
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Martin A, Mügge C, Gin DL, Donnio B, Weigand W. Combined Stabilizing Effects of Trifluoromethyl Groups and Semifluorinated Side Chains on the Thermotropic Liquid-Crystal Behavior of β-Enamino Ketone Ligands and Their Bischelate PdIIComplexes. Eur J Inorg Chem 2014. [DOI: 10.1002/ejic.201402489] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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