A novel supramolecular polymer gel-based long-alkyl-chain-functionalized coumarin acylhydrazone for the sequential detection and separation of toxic ions

Soft Matter ◽  
2020 ◽  
Vol 16 (4) ◽  
pp. 1029-1033 ◽  
Author(s):  
Jing-Han Hu ◽  
Zhi-Yuan Yin ◽  
Kai Gui ◽  
Qing-Qing Fu ◽  
Ying Yao ◽  
...  
Keyword(s):  
Alkyl Chain ◽  
Supramolecular Polymer ◽  
Sequential Detection ◽  
Polymer Gel ◽  
Alkyl Chains ◽  
New Methods ◽  
Toxic Ions ◽  
Detection And Separation ◽  
Long Alkyl Chain

A novel long-alkyl-chains functionalized supramolecular polymer gel OGC was constructed, which shows successive recognition of CN− and S2− to Fe3+ and Ag+. So, our study provided a new methods to detect deferent toxic ions via single chemosensor.

A novel long-alkyl-chained acylhydrazone-based supramolecular polymer gel for the ultrasensitive detection and separation of multianalytes

Soft Matter ◽  
2019 ◽  
Vol 15 (20) ◽  
pp. 4187-4191 ◽  
Author(s):  
Zhi-Yuan Yin ◽  
Jing-Han Hu ◽  
Qing-Qing Fu ◽  
Kai Gui ◽  
Ying Yao
Keyword(s):  
Polymer Material ◽  
Supramolecular Polymer ◽  
Ultrasensitive Detection ◽  
Polymer Gel ◽  
Detection And Separation

A novel supramolecular polymer material, OGV, based on long-alkyl-chained acylhydrazone was constructed. The OGV showed an ultrasensitive response for Hg2+ and Fe3+ in water by forming the metallogels HgG and FeG, which showed ultrasensitive detection and separation for CN− and H2PO4− in water, respectively.

Polypyridyl iron(III) complexes containing long alkyl chains: Synthesis, characterization, DFT calculations and biological activity.

2021 ◽  
Author(s):  
Marcelo Melotti ◽  
Matheus dos Santos Sartori Paqui ◽  
Andre Luiz Amorim ◽  
Carla Peres de Paula ◽  
Marina Campos Rocha ◽  
...  
Keyword(s):  
Biological Activity ◽  
Dft Calculations ◽  
Metal Complexes ◽  
Alkyl Chain ◽  
Alkyl Chains ◽  
Polypyridyl Ligand ◽  
Iron Salts ◽  
Long Alkyl Chain

A polypyridyl ligand functionalized with a long alkyl chain (LC10) was prepared. Reaction of LC10 with selected iron salts of different stoichiometries formed two metal complexes: [Fe(LC10)(Cl)3] (1) and [Fe(LC10)2](ClO4)3...

Pillar[5]arene-based spongy supramolecular polymer gel and its properties in multi-responsiveness, dye sorption, ultrasensitive detection and separation of Fe3+

Soft Matter ◽  
2019 ◽  
Vol 15 (15) ◽  
pp. 3241-3247 ◽  
Author(s):  
Xiao-Wen Guan ◽  
Qi Lin ◽  
You-Ming Zhang ◽  
Tai-Bao Wei ◽  
Jiao Wang ◽  
...  
Keyword(s):  
Organic Dyes ◽  
Supramolecular Polymer ◽  
Ultrasensitive Detection ◽  
Polymer Gel ◽  
Dye Sorption ◽  
Stimuli Response ◽  
Detection And Separation

A pillar[5]arene-based spongy supramolecular polymer gel (SHG) with multi-stimuli response, ultrasensitive detection and separation properties for Fe3+ and organic dyes was developed.

Synthesis and characterization of a novel long-alkyl-chain ester-substituted benzimidazole gelator and its octan-1-ol solvate

2017 ◽  
Vol 73 (4) ◽  
pp. 350-356 ◽  
Author(s):  
H. Cristina Geiger ◽  
Patricia L. Zick ◽  
William R. Roberts ◽  
David K. Geiger
Keyword(s):  
Hydrogen Bonds ◽  
Surface Coverage ◽  
Alkyl Chain ◽  
Benzimidazole Derivative ◽  
Aromatic Rings ◽  
Alkyl Chains ◽  
Solvent Molecules ◽  
Chain Ester ◽  
Long Alkyl Chain

The synthesis of a novel benzimidazole derivative with a long-chain-ester substituent, namely methyl 8-[4-(1H-benzimidazol-2-yl)phenoxy]octanoate, (3), is reported. Ester (3) shows evidence of aggregation in solution and weak gelation ability with toluene. The octan-1-ol solvate, methyl 8-[4-(1H-benzimidazol-2-yl)phenoxy]octanoate octan-1-ol monosolvate, C22H26N2O3·C8H18O, (4), exhibits a four-molecule hydrogen-bonded motif in the solid state, with N—H...O hydrogen bonds between benzimidazole molecules and O—H...N hydrogen bonds between the octan-1-ol solvent molecules and the benzimidazole unit. The alkyl chains of the ester and the octan-1-ol molecules are in unfolded conformations. The phenylene ring is canted by 10.27 (6)° from the plane of the benzimidazole ring system. H...C contacts make up 20.7% of the Hirshfeld surface coverage. Weak C—H...π interactions involving the benzimidazole alkyl chain and three aromatic rings are observed.

Discotic liquid crystals of transition metal complexes 57: X-ray diffraction halo jumps originated from sudden free rotation of substituent groups to induce mesomorphism

2020 ◽  
Vol 24 (04) ◽  
pp. 563-576
Author(s):  
Takahiro Nishiguchi ◽  
Kouki Sugiyama ◽  
Hiromu Nakamura ◽  
Mikio Yasutake ◽  
Kazuchika Ohta
Keyword(s):  
Liquid Crystal ◽  
Liquid Crystals ◽  
Crystalline Phase ◽  
Alkyl Chain ◽  
Copper Phthalocyanine ◽  
Free Rotation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Alkyl Chains ◽  
Long Alkyl Chain

We have synthesized a novel series of four flying-seed-like liquid crystals (1Ph-PhO)4PcM [5-M: M = Co (5-Co), Ni (5-Ni), Cu (5-Cu) and Zn (5-Zn)] which are based on a phthalocyanine core having peripheral bulky groups without long alkyl chains, in order to clarify the precise mechanism inducing their mesomorphism. For comparison, we have also synthesized a long alkyl-chain-substituted liquid crystal ([Formula: see text]C[Formula: see text]OPhO)8PcCu (7o) having the same phthalocyanine core with long alkyl chains in the periphery. Each of the derivatives 5-M and 7o showed a hexagonal ordered columnar (Colho) mesophase. Very interestingly, the halo positions in the X-ray diffraction patterns for the Colho mesophases of the flying-seed-like liquid crystals 5-M and the long alkyl-chain-substituted liquid crystal 7o were quite differently given at 5.7–6.2 Å and 4.6–4.7 Å, respectively. The halo positions of the representative derivatives 5-Cu and 7o having the same copper phthalocyanine (PcCu) core were finely measured at various temperatures by using the temperature-variable small angle X-ray diffraction technique. As the result, the derivatives 5-Cu and 7o showed sudden jumps of halo position from 5.5 to 5.7 Å and from 4.2 to 4.6 Å, respectively, at the phase transition from the crystalline phase to the liquid crystalline phase (Colho). This means that the volume changes ([Formula: see text]V) corresponding to these halo jumps originate from two different kinds of mechanisms by sudden free rotation of the bulky substituents and by sudden melting of the long alkyl chains. Thus, in this work we have unambiguously clarified these two different mechanisms inducing mesomorphism.

Template mediated crystal engineering

1994 ◽  
Vol 52 ◽  
pp. 480-481
Author(s):  
Brigid R. Heywood ◽  
S. Champ
Keyword(s):  
Crystal Engineering ◽  
Electrostatic Interactions ◽  
Alkyl Chain ◽  
Crystallographic Axis ◽  
Two Dimensional ◽  
Engineering Process ◽  
Solution Interface ◽  
Extensive Program ◽  
Geometric Homology ◽  
Long Alkyl Chain

Recent work on the crystallisation of inorganic crystals under compressed monomolecular surfactant films has shown that two dimensional templates can be used to promote the oriented nucleation of solids. When a suitable long alkyl chain surfactant is cast on the crystallisation media a monodispersied population of crystals forms exclusively at the monolayer/solution interface. Each crystal is aligned with a specific crystallographic axis perpendicular to the plane of the monolayer suggesting that nucleation is facilitated by recognition events between the nascent inorganic solid and the organic template.For example, monolayers of the long alkyl chain surfactant, stearic acid will promote the oriented nucleation of the calcium carbonate polymorph, calcite, on the (100) face, whereas compressed monolayers of n-eicosyl sulphate will induce calcite nucleation on the (001) face, (Figure 1 & 2). An extensive program of research has confirmed the general principle that molecular recognition events at the interface (including electrostatic interactions, geometric homology, stereochemical complementarity) can be used to promote the crystal engineering process.

X-ray Crystallographic Study of Alkylammonium Anthracene-9-carboxylates as a Model for Fibrous Structure of Binary Anthracene Salt Gels

2004 ◽  
Vol 69 (6) ◽  
pp. 1292-1300 ◽  
Author(s):  
Tahahiro Tani ◽  
Kazuki Sada ◽  
Masatsugu Ayabe ◽  
Yuya Iwashita ◽  
Takanori Kishida ◽  
...  
Keyword(s):  
Alkyl Chain ◽  
Columnar Structure ◽  
Hydrogen Bond Network ◽  
One Dimensional ◽  
X Ray ◽  
Crystallographic Study ◽  
Alkylammonium Salts ◽  
Bond Network ◽  
Fibrous Assemblies ◽  
Long Alkyl Chain

Crystal structure of hexylammonium anthracene-9-carboxylate was investigated. The salt was arranged by a one-dimensional hydrogen bond network to form a columnar structure in the crystalline state. This columnar structure should be the model of fibrous assemblies in the organogels of anthracene-9-carboxylate alkylammonium salts having a long alkyl chain.

Alkyl-chain disorder in tetraisohexylammonium bromide

2012 ◽  
Vol 68 (4) ◽  
pp. o152-o155 ◽  
Author(s):  
Malcolm A. Kelland ◽  
Amber L. Thompson
Keyword(s):  
Crystal Structure ◽  
Crystal Growth ◽  
Alkyl Chain ◽  
Growth Inhibitor ◽  
Ammonium Cation ◽  
Asymmetric Unit ◽  
Bromide Anion ◽  
Alkyl Chains ◽  
Hydrate Crystal ◽  
Structure Ii Clathrate Hydrate

Tetraisohexylammonium bromide [systematic name: tetrakis(4-methylpentyl)azanium bromide], C24H52N+·Br−, is a powerful structure II clathrate hydrate crystal-growth inhibitor. The crystal structure, in the space groupP3221, contains one ammonium cation and one bromide anion in the asymmetric unit, both on general positions. At 100 K, the ammonium cation exhibits one ordered isohexyl chain and three disordered isohexyl chains. At 250 K, all four isohexyl chains are disordered. In an effort to reduce the disorder in the alkyl chains, the crystal was thermally cycled, but the disorder remained, indicating that it is dynamic in nature.

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