Anion-templated self-assembly of tetrahedral cage complexes of cobalt(II) with bridging ligands containing two bidentate pyrazolyl-pyridine binding sites

Proceedings of the National Academy of Sciences of the United States of America
Rowena L PaulMichael D Ward

Abstract

The bridging ligands L(1) and L(2) contain two N,N-bidentate pyrazolyl-pyridine units linked to a central aromatic spacer unit (1,2-phenyl or 2,3-naphthyl, respectively). Reaction with Ni(II) salts and treatment with the anions tetrafluoroborate or perchlorate result in formation of dinuclear complexes having a 2:3 metal:ligand ratio, with one bridging and two terminal tetradentate ligands. In contrast, reaction of L(1) and L(2) with Co(II) salts, followed by treatment with tetrafluoroborate or perchlorate, results in assembly of cage complexes having a 4:6 metal:ligand ratio; these complexes have a metal ion at each corner of an approximate tetrahedron, and a bis-bidentate bridging ligand spanning each edge. The central cavity is occupied by a tetrahedral counterion that forms multiple hydrogen-bonding interactions with the methylene protons of the bridging ligands. The anionic guest fits tightly into the central cavity of the cage to which it is ideally complementary in terms of shape, size, and charge. Solution NMR experiments show that the central anion acts as a template for cage formation, with a mixture of Co(II) and the appropriate bridging ligand alone giving no assembly into a cage until the tetrahedral anion is added...Continue Reading

References

Dec 26, 2001·Chemical Reviews·S LeiningerP J Stang
Jan 5, 2002·Chemical Reviews·Gerhard F. Swiegers, Tshepo J. Malefetse
Feb 19, 2002·Chemical Reviews·Claude PiguetGérard Hopfgartner
May 18, 1998·Angewandte Chemie·James S FlemingMichael D Ward

❮ Previous
Next ❯

Citations

Aug 31, 2002·Angewandte Chemie·Zöe R BellMichael D Ward
Aug 26, 2011·Chemical Reviews·Rajesh ChakrabartyPeter J Stang
Jul 30, 2011·Inorganic Chemistry·Badr El AroussiJosef Hamacek
Jan 1, 2014·Inorganic Chemistry·Jordi EstebanAlbert Escuer
Dec 24, 2010·Journal of the American Chemical Society·Andrew StephensonMichael D Ward
May 2, 2012·Journal of the American Chemical Society·Radu CustelceanBenjamin P Hay
Mar 30, 2005·Chemical Communications : Chem Comm·David Curiel, Paul D Beer
Sep 22, 2005·Chemical Communications : Chem Comm·Stephen P ArgentMichael D Ward
Mar 29, 2007·Chemical Communications : Chem Comm·Richard FrantzJérôme Lacour
Mar 1, 2008·Chemical Communications : Chem Comm·Christopher R K GlassonRick Willis
Jul 10, 2009·Chemical Communications : Chem Comm·M Arunachalam, Pradyut Ghosh
Jun 9, 2009·Chemical Communications : Chem Comm·M Jaya Prakash, Myoung Soo Lah
Jul 21, 2009·Chemical Communications : Chem Comm·Michael D Ward
Apr 22, 2011·Chemical Communications : Chem Comm·Jack K CleggLeonard F Lindoy
Jan 13, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Stephen P ArgentMichael D Ward
Jul 14, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Philjae KangMoon-Gun Choi
Mar 29, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Alexey N GusevWolfgang Linert
Aug 7, 2014·Chemical Communications : Chem Comm·Alexander J Metherell, Michael D Ward
Oct 19, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Alexander J Metherell, Michael D Ward
Oct 30, 2010·Chemistry : a European Journal·Laura M HancockPaul D Beer
Sep 11, 2014·Angewandte Chemie·Nicholas H Evans, Paul D Beer
Apr 4, 2007·Dalton Transactions : an International Journal of Inorganic Chemistry·James Cookson, Paul D Beer
Apr 21, 2009·Angewandte Chemie·Radu CustelceanBenjamin P Hay
May 17, 2006·Chemical Communications : Chem Comm·Paul D BeerDavid Curiel
Apr 11, 2006·Organic & Biomolecular Chemistry·Mark R SambrookJames A Wisner
Oct 13, 2006·Dalton Transactions : an International Journal of Inorganic Chemistry·Nawal K Al-RasbiMichael D Ward
Jan 27, 2009·Chemical Society Reviews·Jonathan W Steed
Aug 11, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Benjamin R HallMichael D Ward
Nov 28, 2019·Chemistry : a European Journal·Christopher G P TaylorMichael D Ward
Apr 4, 2020·Angewandte Chemie·Marion KiefferJonathan R Nitschke
Oct 13, 2015·Angewandte Chemie·Pia BonakdarzadehKari Rissanen
Dec 18, 2008·Dalton Transactions : an International Journal of Inorganic Chemistry·Aniello PalmaDonal F O'Shea
Sep 15, 2012·Chemical Society Reviews·Edwin C Constable
Mar 20, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Andrew StephensonMichael D Ward
May 16, 2009·Chemistry : a European Journal·Victoria E CampbellJonathan R Nitschke
Aug 30, 2008·Angewandte Chemie·Prasenjit MalJonathan R Nitschke
Jun 1, 2015·Chemical Science·Imogen A RiddellJonathan R Nitschke
Feb 16, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Andrew Stephenson, Michael D Ward
Jan 5, 2014·Chemical Society Reviews·Radu Custelcean
May 3, 2018·Chemical Science·Felix J RizzutoJonathan R Nitschke
Sep 17, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Chandan GiriKari Rissanen

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.

Related Papers

Dalton Transactions : an International Journal of Inorganic Chemistry
Rowena L PaulMichael D Ward
Chemical Communications : Chem Comm
Christopher R K GlassonRick Willis
Chemical Communications : Chem Comm
Stephen P ArgentMichael D Ward
Dalton Transactions : an International Journal of Inorganic Chemistry
Stephen P ArgentMichael D Ward
© 2022 Meta ULC. All rights reserved