Self-Assembly of Stereoisomers ofp-tert-Butyl Thiacalix[4]arenes Tetrasubstituted at the Lower Rim by a Tertiary Amide Group with Cations of p-and d-Elements in the Organic Phase

2009 ◽  
Vol 113 (36) ◽  
pp. 15838-15844 ◽  
Author(s):  
Ivan I. Stoikov ◽  
Elena A. Yushkova ◽  
Anastas A. Bukharaev ◽  
Dmitry A. Biziaev ◽  
Sufia A. Ziganshina ◽  
...  
Keyword(s):  
Organic Phase ◽  
Self Assembly ◽  
Amide Group ◽  
Tert Butyl ◽  
Tertiary Amide

Adsorption and self-assembly of hexa-tert-butyl-hexa-peri-hexabenzocoronene on the Si(111)-3×3-Ag surface

2021 ◽  
pp. 121905
Author(s):  
Jun Motojima ◽  
Naoko Suzuki ◽  
Hideyuki Tsukada ◽  
Takashi Yokoyama
Keyword(s):  
Self Assembly ◽  
Tert Butyl

2H -Tetrakis(3,5-di-tert -butyl)phenylporphyrin on a Cu(110) Surface: Room-Temperature Self-Metalation and Surface-Reconstruction-Facilitated Self-Assembly

2016 ◽  
Vol 22 (10) ◽  
pp. 3347-3354 ◽  
Author(s):  
Liang Zhang ◽  
Michael Lepper ◽  
Michael Stark ◽  
Ralf Schuster ◽  
Dominik Lungerich ◽  
...  
Keyword(s):  
Surface Reconstruction ◽  
Self Assembly ◽  
Room Temperature ◽  
Tert Butyl

Environmentally responsive self-assembly of mixed poly(tert-butyl acrylate)–polystyrene brush-grafted silica nanoparticles in selective polymer matrices

Soft Matter ◽  
2015 ◽  
Vol 11 (27) ◽  
pp. 5501-5512 ◽  
Author(s):  
Saide Tang ◽  
Tara L. Fox ◽  
Ting-Ya Lo ◽  
Jonathan M. Horton ◽  
Rong-Ming Ho ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Self Assembly ◽  
Butyl Acrylate ◽  
Polymer Matrices ◽  
Tert Butyl ◽  
Environmentally Responsive

scholarly journals Computational Screening for Nested Organic Cage Complexes

2019 ◽  
Author(s):  
Enrico Berardo ◽  
Rebecca L. Greenaway ◽  
Marcin Miklitz ◽  
Andrew I. Cooper ◽  
Kim Jelfs
Keyword(s):  
Phase Space ◽  
Self Assembly ◽  
Binding Energies ◽  
Tert Butyl ◽  
Computational Screening ◽  
Cage Complex ◽  
Highly Effective ◽  
Molecular Architectures ◽  
Molecular Separations

Supramolecular self-assembly has allowed the synthesis of beautiful and complex molecular architectures, such as cages, macrocycles, knots, catenanes, and rotaxanes. We focus here on porous organic cages, which are molecules that have an intrinsic cavity and multiple windows. These cages have been shown to be highly effective at molecular separations and encapsulations. We investigate the possibility of complexes where one cage sits within the cavity of another. We term this a `nested cage' complex. The design of such complexes is highly challenging, so we use computational screening to explore 8712 different pair combinations, running almost 0.5M calculations to sample the phase space of the cage conformations. Through analysing the binding energies of the assemblies, we identify highly energetically favourable pairs of cages in nested cage complexes. The vast majority of the most favourable complexes include the large imine cage reported by Gawronski and co-workers using a [8+12] reaction of 4-tert-butyl-2,6-diformylphenol and cis,cis-1,3,5-triaminocyclohexane. The most energetically favourable nested cage complex combines the Gawronski cage with a dodecaamide cage that has six vertices, which can sit in the six windows of the larger cage. We also identify cages that have favourable binding energies for self-catenation.

scholarly journals (Acetamide-κO){2,2′,2′′-boranetriyltris[6-tert-butyl-4-methylpyridazine-3(2H)-thione]-κ4 B,S,S′,S′′}copper(I) trifluoromethanesulfonate chloroform disolvate

IUCrData ◽  
2018 ◽  
Vol 3 (1) ◽  
Author(s):  
Stefan Holler ◽  
Ferdinand Belaj ◽  
Nadia C. Mösch-Zanetti
Keyword(s):  
Hydrogen Bond ◽  
Equatorial Plane ◽  
Complex Salt ◽  
Amide Group ◽  
Trigonal Bipyramid ◽  
Tert Butyl ◽  
Bifurcated Hydrogen Bond ◽  
Scorpionate Ligand

In the title solvated complex salt, [Cu(C27H39BN6S3)(C2H5NO)](CF3O3S)·2CHCl3, the CuI atom is coordinated by the three S atoms of the pyridazine-3-thione rings in the equatorial plane [Cu—S = 2.3072 (4)–2.3280 (4) Å] and the B atom of the scorpionate ligand and the O atom of an acetamide ligand as the apices of a trigonal bipyramid [Cu—B = 2.0456 (16) Å and Cu—O = 1.9957 (11) Å]. The amide group of the latter ligand is involved in a bifurcated hydrogen bond to the trifluoromethanesulfonate anion.

scholarly journals Mapping the Mechanical Properties of Hierarchical Supercrystalline Ceramic-Organic Nanocomposites

Molecules ◽  
2020 ◽  
Vol 25 (20) ◽  
pp. 4790 ◽  
Author(s):  
Büsra Bor ◽  
Lydia Heilmann ◽  
Berta Domènech ◽  
Michael Kampferbeck ◽  
Tobias Vossmeyer ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Heat Treatment ◽  
Organic Phase ◽  
Self Assembly ◽  
Organic Content ◽  
Treatment Temperature ◽  
Covalent Bonds ◽  
Soft Phase ◽  
Beneficial Effects ◽  
Ceramic Nanoparticles

Multiscale ceramic-organic supercrystalline nanocomposites with two levels of hierarchy have been developed via self-assembly with tailored content of the organic phase. These nanocomposites consist of organically functionalized ceramic nanoparticles forming supercrystalline micron-sized grains, which are in turn embedded in an organic-rich matrix. By applying an additional heat treatment step at mild temperatures (250–350 °C), the mechanical properties of the hierarchical nanocomposites are here enhanced. The heat treatment leads to partial removal and crosslinking of the organic phase, minimizing the volume occupied by the nanocomposites’ soft phase and triggering the formation of covalent bonds through the organic ligands interfacing the ceramic nanoparticles. Elastic modulus and hardness up to 45 and 2.5 GPa are attained, while the hierarchical microstructure is preserved. The presence of an organic phase between the supercrystalline grains provides a toughening effect, by curbing indentation-induced cracks. A mapping of the nanocomposites’ mechanical properties reveals the presence of multiple microstructural features and how they evolve with heat treatment temperature. A comparison with non-hierarchical, homogeneous supercrystalline nanocomposites with lower organic content confirms how the hierarchy-inducing organic excess results in toughening, while maintaining the beneficial effects of crosslinking on the materials’ stiffness and hardness.

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