Recent advances in hydrogen-bonded hexameric encapsulation complexes

2011 ◽  
Vol 47 (19) ◽  
pp. 5368 ◽  
Author(s):  
Liat Avram ◽  
Yoram Cohen ◽  
Julius Rebek Jr.
Keyword(s):  
Recent Advances ◽  
Hydrogen Bonded

scholarly journals Recent advances in self-assembled amidinium and guanidinium frameworks

2019 ◽  
Vol 48 (21) ◽  
pp. 7062-7068 ◽  
Author(s):  
Nicholas G. White
Keyword(s):  
Framework Materials ◽  
Recent Advances ◽  
Self Assembled ◽  
Hydrogen Bonded

Recent advances in amidinium and guanidinium-containing hydrogen-bonded framework materials are highlighted.

scholarly journals Photocapture of dynamic hydrogen-bonded assemblies

2004 ◽  
Vol 6 (4) ◽  
pp. 185-192 ◽  
Author(s):  
Nathan D. McClenaghan ◽  
Dario M. Bassani
Keyword(s):  
Hydrogen Bonding ◽  
Hydrogen Bonds ◽  
Supramolecular Assemblies ◽  
Topochemical Reaction ◽  
Hydrogen Bonding Interactions ◽  
Recent Advances ◽  
Weak Hydrogen Bonding ◽  
Supramolecular Template ◽  
Multiple Hydrogen Bonds ◽  
Hydrogen Bonded

Recent advances in the continuing study of [2+2] photodimerization reactions in supramolecular, non-covalent systems are presented. The covalent photocapture of small dynamic assemblies which are formed using weak hydrogen-bonding interactions between two different complementary units, barbiturates and melamines, is discussed. One unit serves as a photo-inert supramolecular template capable of bringing two photoactive units together using multiple hydrogen-bonds. The second type of unit unites the corresponding, complementary hydrogen-bonding motif with a photoactive unit. Irradiation of the supramolecular assemblies leads to photodimerization of adjacent units and generation of an imprinted site for the template. Moieties which are adapted to participate in photodimerization reactions are styrene, cinnamate, stilbene and fullerene units. The results are interpreted on the basis of topochemical reaction control.

scholarly journals Recent Advances in Spectroscopy of Hydrogen-Bonded Systems

2012 ◽  
Vol 2012 ◽  
pp. 1-1
Author(s):  
Marek J. Wójcik ◽  
Paul Blaise ◽  
Joanna Sadlej ◽  
Henryk Flakus
Keyword(s):  
Recent Advances ◽  
Hydrogen Bonded Systems ◽  
Hydrogen Bonded

ChemInform Abstract: Recent Advances in Hydrogen-Bonded Hexameric Encapsulation Complexes

ChemInform ◽  
2011 ◽  
Vol 42 (37) ◽  
pp. no-no
Author(s):  
Liat Avram ◽  
Yoram Cohen ◽  
Julius Jr. Rebek
Keyword(s):  
Recent Advances ◽  
Hydrogen Bonded

Recent Advances in High Dispersion Spectroscopy of Globular Cluster Stars

1988 ◽  
Vol 132 ◽  
pp. 525-530
Author(s):  
Raffaele G. Gratton
Keyword(s):  
Globular Cluster ◽  
Globular Clusters ◽  
High Dispersion ◽  
Photographic Material ◽  
Recent Advances ◽  
Metal Abundances ◽  
Ccd Detectors ◽  
Major Progress

The use CCD detectors has allowed a major progress in abundance derivations for globular cluster stars in the last years. Abundances deduced from high dispersion spectra now correlates well with other abundance indicators. I discuss some problems concerning the derivation of accurate metal abundances for globular clusters using high dispersion spectra from both the old photographic and the most recent CCD data. The discrepant low abundances found by Cohen (1980), from photographic material for M71 giants, are found to be due to the use of too high microturbulences.

Chelation-assisted transition metal-catalysed C–H chalcogenylations

2020 ◽  
Vol 7 (8) ◽  
pp. 1022-1060 ◽  
Author(s):  
Wenbo Ma ◽  
Nikolaos Kaplaneris ◽  
Xinyue Fang ◽  
Linghui Gu ◽  
Ruhuai Mei ◽  
...  
Keyword(s):  
Transition Metal ◽  
Recent Advances ◽  
Site Selectivity ◽  
Transition Metal Catalyzed ◽  
Metal Catalyzed

This review summarizes recent advances in C–S and C–Se formations via transition metal-catalyzed C–H functionalization utilizing directing groups to control the site-selectivity.

Nucleosome dynamics

2006 ◽  
Vol 73 ◽  
pp. 109-119 ◽  
Author(s):  
Chris Stockdale ◽  
Michael Bruno ◽  
Helder Ferreira ◽  
Elisa Garcia-Wilson ◽  
Nicola Wiechens ◽  
...  
Keyword(s):  
High Resolution ◽  
Chromatin Structure ◽  
Current Knowledge ◽  
Dynamic Properties ◽  
Structure And Dynamics ◽  
Nucleosome Dynamics ◽  
Sharp Focus ◽  
Recent Advances ◽  
Insight Into ◽  
Chromatin Structure And Dynamics

In the 30 years since the discovery of the nucleosome, our picture of it has come into sharp focus. The recent high-resolution structures have provided a wealth of insight into the function of the nucleosome, but they are inherently static. Our current knowledge of how nucleosomes can be reconfigured dynamically is at a much earlier stage. Here, recent advances in the understanding of chromatin structure and dynamics are highlighted. The ways in which different modes of nucleosome reconfiguration are likely to influence each other are discussed, and some of the factors likely to regulate the dynamic properties of nucleosomes are considered.

Recent Advances in the Treatment of Pulmonary Tuberculosis

1950 ◽  
Vol 34 (5) ◽  
pp. 1363-1380
Author(s):  
Theodore L. Badger ◽  
William E. Patton
Keyword(s):  
Pulmonary Tuberculosis ◽  
Recent Advances

Recent Advances in Thyroid Imaging

1990 ◽  
Vol 23 (2) ◽  
pp. 251-270
Author(s):  
Martin P. Sandler, MD ◽  
James A. Patton ◽  
Robert H. Ossoff
Keyword(s):  
Thyroid Imaging ◽  
Recent Advances
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