ChemInform Abstract: SPHERANDS WITH FUNCTIONAL GROUPS IN THE OUTER SPHERE: SYNTHESIS FROM MODIFIED 1,1′:3′,1′′-TERPHENYLS

1985 ◽  
Vol 16 (18) ◽  
Author(s):  
P. J. DIJKSTRA ◽  
J. C. O. BOERRIGTER ◽  
B. J. VAN STEEN ◽  
H. J. JUN. DEN HERTOG ◽  
D. N. REINHOUDT
Keyword(s):  
Functional Groups ◽  
Outer Sphere

Spherands with functional groups in the outer sphere: synthesis from modified 1,1′:3′,I″-terphenyls

1984 ◽  
Vol 0 (24) ◽  
pp. 1660-1661 ◽  
Author(s):  
Pieter J. Dijkstra ◽  
Jos C. Olde Boerrigter ◽  
Bart J. van Steen ◽  
Herman J. den Hertog ◽  
David N. Reinhoudt
Keyword(s):  
Functional Groups ◽  
Outer Sphere

Synthesis of spherands with functional groups at the outer sphere

1986 ◽  
Vol 51 (26) ◽  
pp. 5127-5133 ◽  
Author(s):  
Pieter J. Dijkstra ◽  
Bart J. Van Steen ◽  
David N. Reinhoudt
Keyword(s):  
Functional Groups ◽  
Outer Sphere

Insights into the electron-donating and withdrawing effect of the functional groups on mechanochemical dehydrochlorination reactions

2017 ◽  
Vol 46 (29) ◽  
pp. 9466-9471 ◽  
Author(s):  
Fang Guo ◽  
Zhen Wang ◽  
Jin-Jing Zhang ◽  
Antonino Famulari ◽  
Hai-tao Li ◽  
...  
Keyword(s):  
Functional Groups ◽  
Outer Sphere ◽  
Coordination Complex ◽  
Dehydrochlorination Reaction

The effect on electron depletion in a partially fluorinated ligand has been evaluated in a dehydrochlorination reaction by converting outer sphere adducts into a coordination complex using experimental and DFT data.

ChemInform Abstract: Synthesis of Spherands (I) with Functional Groups at the Outer Sphere.

ChemInform ◽  
1987 ◽  
Vol 18 (29) ◽  
Author(s):  
P. J. DIJKSTRA ◽  
B. J. VAN STEEN ◽  
D. N. REINHOUDT
Keyword(s):  
Functional Groups ◽  
Outer Sphere

Improving integration between functional groups: A case in organization change and implications for theory and practice

1971 ◽  
Author(s):  
Warren G. Bennis ◽  
Michael Beer ◽  
Gerald R. Pieters ◽  
Alan T. Hundert ◽  
Samuel H. Marcus ◽  
...  
Keyword(s):  
Functional Groups ◽  
Organization Change ◽  
Theory And Practice

HYDROXYAPATITE, ALGINATE, AND CHITOSAN FOR BONE SCAFFOLDS: SPECTROSCOPY STUDY

2016 ◽  
Vol 19 (2) ◽  
pp. 93-100
Author(s):  
Lalita El Milla
Keyword(s):  
Tissue Engineering ◽  
Bone Tissue Engineering ◽  
Bone Tissue ◽  
Functional Groups ◽  
Bone Growth ◽  
Three Dimensional ◽  
Dimensional Structure ◽  
Tissue Engineering Scaffolds ◽  
Hydroxyapatite Powder ◽  
Materials Used

Scaffolds is three dimensional structure that serves as a framework for bone growth. Natural materials are often used in synthesis of bone tissue engineering scaffolds with respect to compliance with the content of the human body. Among the materials used to make scafffold was hydroxyapatite, alginate and chitosan. Hydroxyapatite powder obtained by mixing phosphoric acid and calcium hydroxide, alginate powders extracted from brown algae and chitosan powder acetylated from crab. The purpose of this study was to examine the functional groups of hydroxyapatite, alginate and chitosan. The method used in this study was laboratory experimental using Fourier Transform Infrared (FTIR) spectroscopy for hydroxyapatite, alginate and chitosan powders. The results indicated the presence of functional groups PO43-, O-H and CO32- in hydroxyapatite. In alginate there were O-H, C=O, COOH and C-O-C functional groups, whereas in chitosan there were O-H, N-H, C=O, C-N, and C-O-C. It was concluded that the third material containing functional groups as found in humans that correspond to the scaffolds material in bone tissue engineering.

High Resolution Displacement of Functional Groups onto Fluorocarbon Resin Surface by Using ArF Excimer Laser

1996 ◽  
Vol 451 ◽  
Author(s):  
T. Shimizu ◽  
M. Murahara
Keyword(s):  
Contact Angle ◽  
High Resolution ◽  
Laser Beam ◽  
Thin Layer ◽  
Functional Groups ◽  
Excimer Laser ◽  
Laser Fluence ◽  
Large Area ◽  
Three Solutions ◽  
Arf Excimer Laser

ABSTRACTA Fluorocarbon resin surface was selectively modified by irradiation with a ArF laser beam through a thin layer of NaAlO2, B(OH)3, or H2O solution to give a hydrophilic property. As a result, with low fluence, the surface was most effectively modified with the NaAlO2 solution among the three solutions. However, the contact angle in this case changed by 10 degrees as the fluence changed only 1mJ/cm2. When modifying a large area of the surface, high resolution displacement could not be achieved because the laser beam was not uniform in displacing functional groups. Thus, the laser fluence was successfully made uniform by homogenizing the laser beam; the functional groups were replaced on the fluorocarbon resin surface with high resolution, which was successfully modified to be hydrophilic by distributing the laser fluence uniformly.

Finite difference code for velocity and surface traction of a Fluid between Two Eccentric Spheres

2015 ◽  
Vol 11 (1) ◽  
pp. 2960-2971
Author(s):  
M.Abdel Wahab
Keyword(s):  
Velocity Field ◽  
Angular Velocity ◽  
Finite Difference ◽  
Numerical Study ◽  
Outer Sphere ◽  
Equation Of Motion ◽  
Annular Region ◽  
Surface Traction ◽  
Angular Velocities ◽  
Axis Passing

The Numerical study of the flow of a fluid in the annular region between two eccentric sphere susing PHP Code isinvestigated. This flow is created by considering the inner sphere to rotate with angular velocity 1  and the outer sphererotate with angular velocity 2  about the axis passing through their centers, the z-axis, using the three dimensionalBispherical coordinates (, ,) .The velocity field of fluid is determined by solving equation of motion using PHP Codeat different cases of angular velocities of inner and outer sphere. Also Finite difference code is used to calculate surfacetractions at outer sphere.

Visible Light-Promoted Catalytic Ring-Opening Isomerization of 1,2-Disubstituted Cyclopropanols to Linear Ketones

2019 ◽  
Author(s):  
Marharyta V. Laktsevich-Iskryk ◽  
Nastassia A. Varabyeva ◽  
Volha V. Kazlova ◽  
Vladimir N. Zhabinskii ◽  
Vladimir A. Khripach ◽  
...  
Keyword(s):  
Visible Light ◽  
Functional Groups ◽  
Ring Opening ◽  
Radical Intermediates ◽  
Reaction Proceeds

In this article, we report a photocatalytic protocol for the isomerization of 1,2-disubstituted cyclopropanols to linear ketones. The reaction proceeds <i>via</i> radical intermediates and tolerates various functional groups.

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