Synthesis of Novel Chiral Phenanthroline Ligands and Copper Complex

Synlett ◽  
2021 ◽  
Author(s):  
Jingjing Tang ◽  
Jian Li ◽  
Xue-Yan Yang ◽  
Zhipeng Zhang
Keyword(s):  
Amino Acids ◽  
Single Crystal ◽  
Copper Complex ◽  
Copper Ion ◽  
Multidentate Ligands ◽  
X Ray Diffraction ◽  
X Ray ◽  
Phenanthroline Ligands

A novel class of chiral multidentate ligands have been designed and synthesized from the highly important classic ligand 1,10-phenanthroline (phen) and amino acids. The ligands were proven to be able to coordinate with copper ion by forming a novel chiral copper complex, the structure of which was determined by single crystal X-ray diffraction.

scholarly journals Hydrogels formed from Fmoc amino acids

CrystEngComm ◽  
2015 ◽  
Vol 17 (42) ◽  
pp. 8047-8057 ◽  
Author(s):  
Emily R. Draper ◽  
Kyle L. Morris ◽  
Marc A. Little ◽  
Jaclyn Raeburn ◽  
Catherine Colquhoun ◽  
...  
Keyword(s):  
Amino Acids ◽  
Molecular Weight ◽  
Single Crystal ◽  
Crystal Structures ◽  
Diffraction Data ◽  
Low Molecular Weight ◽  
X Ray Diffraction ◽  
X Ray ◽  
Single Crystal Structures

A number of Fmoc amino acids can be effective low molecular weight hydrogelators; we compare single crystal structures to fibre X-ray diffraction data.

Self-Assembling l-d-l-Tripeptides Dance the Twist

Synlett ◽  
2020 ◽  
Vol 31 (05) ◽  
pp. 434-438 ◽  
Author(s):  
Maria C. Cringoli ◽  
Ottavia Bellotto ◽  
Rita De Zorzi ◽  
Attilio V. Vargiu ◽  
Silvia Marchesan
Keyword(s):  
Molecular Dynamics ◽  
Amino Acids ◽  
Single Crystal ◽  
Self Assembly ◽  
Building Blocks ◽  
Supramolecular Structures ◽  
X Ray Diffraction ◽  
Supramolecular Materials ◽  
X Ray ◽  
Self Assembling

Minimalistic peptides composed of d- and l-amino acids are attractive building blocks for functional supramolecular materials, including catalysts. d-Amino acids have long been known to promote turn conformations in peptides, yet unexpected twists continue to emerge on their effects on self-assembly. The combination of single-crystal X-ray diffraction and full-atom molecular dynamics have finally unraveled fine details of how l-d-l-tripeptides visit different conformations in solution and establish key interactions in supramolecular structures.

Electron Microscopy of Shock Loaded Polycrystalline Beryllium

1974 ◽  
Vol 32 ◽  
pp. 506-507 ◽  
Author(s):  
J. M. Galbraith ◽  
L. E. Murr ◽  
A. L. Stevens
Keyword(s):  
Electron Microscopy ◽  
Wave Propagation ◽  
Structural Change ◽  
Single Crystal ◽  
Diffraction Pattern ◽  
Shock Loading ◽  
Slip Systems ◽  
Compression Tests ◽  
X Ray Diffraction ◽  
X Ray

Uniaxial compression tests and hydrostatic tests at pressures up to 27 kbars have been performed to determine operating slip systems in single crystal and polycrystal1ine beryllium. A recent study has been made of wave propagation in single crystal beryllium by shock loading to selectively activate various slip systems, and this has been followed by a study of wave propagation and spallation in textured, polycrystal1ine beryllium. An alteration in the X-ray diffraction pattern has been noted after shock loading, but this alteration has not yet been correlated with any structural change occurring during shock loading of polycrystal1ine beryllium.This study is being conducted in an effort to characterize the effects of shock loading on textured, polycrystal1ine beryllium. Samples were fabricated from a billet of Kawecki-Berylco hot pressed HP-10 beryllium.

Crystal structure of an inclusion complex between chiral monoaza-15-crown-5 and S(–)-1-phenyl-ethyl ammonium percholorate

2003 ◽  
Vol 218 (5) ◽  
Author(s):  
Süheyla Özbey ◽  
F. B. Kaynak ◽  
M. Toğrul ◽  
N. Demirel ◽  
H. Hoşgören
Keyword(s):  
Crystal Structure ◽  
Inclusion Complex ◽  
Single Crystal ◽  
X Ray Diffraction ◽  
Space Group ◽  
X Ray ◽  
New Type

AbstractA new type of inclusion complex, S(–)-1 phenyl ethyl ammonium percholorate complex of R-(–)-2-ethyl - N - benzyl - 4, 7, 10, 13 - tetraoxa -1- azacyclopentadecane, has been prepared and studied by NMR, IR and single crystal X-ray diffraction techniques. The compound crystallizes in space group

Tetranuclear Copper and Mononuclear Nickel Complex of the Schiff Base of (3Z)-3-Hydrazonobutan-2-One Oxime with Different Aromatic Carbonyl Compounds: Synthesis, Single Crystal X-Ray Structure, Catecholase Activity, Phenoxazinone Synthase Activity, Catalytic Study for the Homocoupling of Benzyl Amines

2019 ◽  
Author(s):  
Swaraj Sengupta ◽  
Sahanwaj Khan ◽  
Shyamal K. Chattopadhyay ◽  
Indrani Banerjee ◽  
Tarun K. Panda ◽  
...  
Keyword(s):  
Schiff Base ◽  
Single Crystal ◽  
Copper Complex ◽  
Carbonyl Compounds ◽  
Nickel Complex ◽  
Schiff Base Ligands ◽  
X Ray ◽  
Phenoxazinone Synthase ◽  
Catecholase Activity ◽  
Aromatic Carbonyl Compounds

Synthesis and characterisation of one trinuclear copper complex, ([Cu<sub>3</sub>L<sub>3</sub>O]ClO<sub>4</sub>) (<b>1</b>) and one nickel complex ([Ni(L'H)<sub>2</sub>(dmso)<sub>2</sub>](ClO<sub>4</sub>)<sub>2</sub>) (<b>2</b>) with Schiff base ligands: (3Z)-3-((Z)-(1-(thiophen-2-yl)ethylidene)hydrazono)butan-2-one oxime (LH) and 1-(pyridin-2-yl)ethylidene)hydrazono)butan-2-one oxime (L<sup>'</sup>H). <b>1</b> shows high catecholase activity and has also been tested as a catalyst for the synthesis of benzylimine. <b>2 </b> shows phenoxazinone synthase activity.

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