Molecular tectonics: tubular crystals with controllable channel size and orientation.

Chem Commun (Camb)

Laboratoire de Chimie de Coordination Organique (UMR 7140), Université de Strasbourg, Institut Le Bel, 4 rue Blaise Pascal, 67000 Strasbourg, France.

Published: January 2010

The combination of flexible neutral organic tectons based on two pyridines interconnected by a thioether or thioester type spacer with an inorganic ZnSiF(6) pillar leads to the formation of 2-D coordination networks and the packing of the latter generates crystals offering controllable tubular channels with imposed orientation along the pillar axis.

Download full-text PDF

Source
http://dx.doi.org/10.1039/b915665hDOI Listing

Publication Analysis

Top Keywords

molecular tectonics
4
tectonics tubular
4
tubular crystals
4
crystals controllable
4
controllable channel
4
channel size
4
size orientation
4
orientation combination
4
combination flexible
4
flexible neutral
4

Similar Publications

Environmental factors such as mountain tectonic movements and monsoons can enhance genetic differentiation by hindering inter- and intra-specific gene flow. However, the phylogeographic breaks detected within species may differ depending on the different molecular markers used, and biological traits may be a major confounding factor. is a vulnerable relict species distributed throughout the Sichuan Basin.

View Article and Find Full Text PDF

The mechanical deformation of coals occurring extensively during the geological period (tectonically deformed coals) can directly alter their pore structures and then the storage of coalbed methane. This study in-situ investigated the effects of different mechanical deformations on the ultramicropore structure and the methane adsorption of coal molecules using molecular simulations. The results show that the shear deformation (< 0.

View Article and Find Full Text PDF

MreC-MreD structure reveals a multifaceted interface that controls MreC conformation.

bioRxiv

October 2024

Department of Biological Chemistry and Molecular Pharmacology, Blavatnik Institute, Harvard Medical School, Boston, Massachusetts 02115, USA.

The peptidoglycan (PG) cell wall is critical for bacterial growth and survival and is a primary antibiotic target. MreD is an essential accessory factor of the Rod complex, which carries out PG synthesis during elongation, yet little is known about how MreD facilitates this process. Here, we present the cryo-electron microscopy structure of MreD in complex with another essential Rod complex component, MreC.

View Article and Find Full Text PDF

Phylogeny and evolution of dissimilatory sulfite reduction in prokaryotes.

Mol Phylogenet Evol

December 2024

State Key Laboratory of Microbial Metabolism, School of Life Sciences and Biotechnology, Shanghai Jiao Tong University, Shanghai 200240, China. Electronic address:

Sulfate is the second most common nonmetallic ion in modern oceans, as its concentration dramatically increased alongside tectonic activity and atmospheric oxidation in the Proterozoic. Microbial sulfate/sulfite metabolism, involving organic carbon or hydrogen oxidation, is linked to sulfur and carbon biogeochemical cycles. However, the coevolution of microbial sulfate/sulfite metabolism and Earth's history remains unclear.

View Article and Find Full Text PDF
Article Synopsis
  • * Research using mitochondrial genome sequences indicates that Cyrenidae independently invaded freshwater during three key time periods: the Early Jurassic from the Americas, and two later phases from Australasia/East Asia during the Cretaceous and Paleogene-Neogene periods.
  • * The study sheds light on these invasions' timing and geography, correlating them with geological events, and supports the idea that Cyrenidae have evolved similar parental care behaviors multiple times.
View Article and Find Full Text PDF

Want AI Summaries of new PubMed Abstracts delivered to your In-box?

Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!