scholarly journals Roles of Organic Ligands at the Surface of Nanocrystals for Bottom-Up Structure and Properties

2012 ◽  
Vol 63 (6) ◽  
pp. 357
Author(s):  
Kazumi KATO
Keyword(s):  
Organic Ligands ◽  
Structure And Properties ◽  
Bottom Up

Post-synthetically modified metal-organic frameworks for sensing and capture of water pollutants

2021 ◽  
Author(s):  
Soumya Mukherjee ◽  
Subhajit Dutta ◽  
Yogeshwar D. More ◽  
Sahel Fajal ◽  
Sujit K. Ghosh
Keyword(s):  
Metal Organic Frameworks ◽  
Organic Ligands ◽  
Bottom Up ◽  
Water Pollutants ◽  
Metal Organic

Thanks to a bottom-up Lego® design of metals and organic ligands, the library of metal-organic frameworks (MOFs) have seen a conspicuous growth. Post-synthetically modified MOFs comprise a relatively smaller subset...

Octahedral rhenium cluster complexes with organic ligands: Synthesis, structure and properties of [Re6Q8(3,5-Me2PzH)6]Br2·2(3,5-Me2PzH) (Q=S, Se)

2006 ◽  
Vol 359 (4) ◽  
pp. 1129-1134 ◽  
Author(s):  
Yuri V. Mironov ◽  
Konstantin A. Brylev ◽  
Michael A. Shestopalov ◽  
Spartak S. Yarovoi ◽  
Vladimir E. Fedorov ◽  
...  
Keyword(s):  
Organic Ligands ◽  
Structure And Properties ◽  
Cluster Complexes ◽  
Rhenium Cluster

scholarly journals Bottom-up synthesis of chiral covalent organic frameworks and their bound capillaries for chiral separation

2016 ◽  
Vol 7 (1) ◽  
Author(s):  
Hai-Long Qian ◽  
Cheng-Xiong Yang ◽  
Xiu-Ping Yan
Keyword(s):  
Gas Chromatography ◽  
Chiral Separation ◽  
Capillary Columns ◽  
Organic Ligands ◽  
Covalent Organic Frameworks ◽  
Bottom Up ◽  
Repeatability And Reproducibility ◽  
Growth Approach ◽  
Chiral Gas Chromatography

Abstract Covalent organic frameworks (COFs) are a novel class of porous materials, and offer great potential for various applications. However, the applications of COFs in chiral separation and chiral catalysis are largely underexplored due to the very limited chiral COFs available and their challenging synthesis. Here we show a bottom-up strategy to construct chiral COFs and an in situ growth approach to fabricate chiral COF-bound capillary columns for chiral gas chromatography. We incorporate the chiral centres into one of the organic ligands for the synthesis of the chiral COFs. We subsequently in situ prepare the COF-bound capillary columns. The prepared chiral COFs and their bound capillary columns give high resolution for the separation of enantiomers with excellent repeatability and reproducibility. The proposed strategy provides a promising platform for the synthesis of chiral COFs and their chiral separation application.

Structure of second phases in TiAl alloys containing Cr and B

1991 ◽  
Vol 49 ◽  
pp. 576-577
Author(s):  
Ernest L. Hall ◽  
Shyh-Chin Huang
Keyword(s):  
Grain Size ◽  
Second Phase ◽  
Structure And Properties ◽  
Tial Alloys ◽  
Second Phases ◽  
Interstitial Elements

Addition of interstitial elements to γ-TiAl alloys is currently being explored as a method for improving the properties of these alloys. Previous work in which a number of interstitial elements were studied showed that boron was particularly effective in refining the grain size in castings, and led to enhanced strength while maintaining reasonable ductility. Other investigators have shown that B in γ-TiAl alloys tends to promote the formation of TiB2 as a second phase. In this study, the microstructure of Bcontaining TiAl alloys was examined in detail in order to describe the mechanism by which B alters the structure and properties of these alloys.

Relationships between hierarchical structure and properties in macromolecular systems

1987 ◽  
Vol 45 ◽  
pp. 440-443
Author(s):  
E. Baer
Keyword(s):  
Uniaxial Tension ◽  
Hierarchical Structure ◽  
Inorganic Material ◽  
Hierarchical Structures ◽  
Bone Collagen ◽  
Structure And Properties ◽  
Connective Tissues ◽  
Scale Level ◽  
Fibrous Protein ◽  
Macromolecular Systems

The most advanced macromolecular materials are found in plants and animals, and certainly the connective tissues in mammals are amongst the most advanced macromolecular composites known to mankind. The efficient use of collagen, a fibrous protein, in the design of both soft and hard connective tissues is worthy of comment. Very crudely, in bone collagen serves as a highly efficient binder for the inorganic hydroxyappatite which stiffens the structure. The interactions between the organic fiber of collagen and the inorganic material seem to occur at the nano (scale) level of organization. Epitatic crystallization of the inorganic phase on the fibers has been reported to give a highly anisotropic, stress responsive, structure. Soft connective tissues also have sophisticated oriented hierarchical structures. The collagen fibers are “glued” together by a highly hydrated gel-like proteoglycan matrix. One of the simplest structures of this type is tendon which functions primarily in uniaxial tension as a reinforced elastomeric cable between muscle and bone.

The Structure and Properties of MoSi2 Thin Film in Mos Process

1980 ◽  
Vol 38 ◽  
pp. 326-327
Author(s):  
C.K. Wu ◽  
P. Chang ◽  
N. Godinho
Keyword(s):  
Thin Film ◽  
Integrated Circuits ◽  
High Performance ◽  
Large Scale ◽  
Process Development ◽  
Structure And Properties ◽  
Metal Silicides ◽  
High Oxidation ◽  
Important Approach ◽  
High Oxidation Resistance

Recently, the use of refractory metal silicides as low resistivity, high temperature and high oxidation resistance gate materials in large scale integrated circuits (LSI) has become an important approach in advanced MOS process development (1). This research is a systematic study on the structure and properties of molybdenum silicide thin film and its applicability to high performance LSI fabrication.

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