Bistabilities in 1,3,2-dithiazolyl radicals

Journal of the American Chemical Society
Jaclyn L BrussoJohn F Richardson

Abstract

New synthetic methods for heterocyclic 1,3,2-dithiazolyl (DTA) radicals have been developed, and trends in the molecular spin distributions and electrochemical properties of a series of DTA radicals are reported. The crystal structures of [1,2,5]thiadiazolo[3,4-f][1,3,2]benzodithiazol-2-yl (TBDTA) and [1,3,2]pyrazinodithiazol-2-yl (PDTA) have been determined. The structure of TBDTA (at 293 and 95 K) contains two molecules in the asymmetric unit, each of which generates pi-stacked arrays, one consisting of antiparallel chains of centrosymmetrically associated dimers, the other comprising parallel chains of unassociated radicals. The structure of PDTA (at 293 and 95 K) is simpler, consisting of slipped stacks of pi-dimers. Variable-temperature magnetic susceptibility (chi(P)) measurements on TBDTA indicate essentially paramagnetic behavior for the unassociated radical pi-stacks over the range 5-400 K. By contrast PDTA is diamagnetic at all temperatures below 300 K, but between 300 and 350 K the value of chi(P) follows a sharp and well-defined hysteresis loop, with T(C) downward arrow = 297 K and T(C) upward arrow = 343 K. These features are symptomatic of a regime of bistability involving the observed low temperature pi-dimer str...Continue Reading

Citations

Feb 22, 2012·Inorganic Chemistry·Jian WuKathryn E Preuss
Feb 24, 2005·Chemical Communications : Chem Comm·Leanne BeerDonald G VanderVeer
Mar 4, 2006·Chemical Communications : Chem Comm·Alicea A LeitchLenora D Sawyer
Apr 20, 2006·Chemical Communications : Chem Comm·Chunyang JiaSilvio Decurtins
May 24, 2006·Chemical Communications : Chem Comm·T Stanley CameronLaurence K Thompson
Nov 21, 2007·Chemical Communications : Chem Comm·Alicea A LeitchRichard T Oakley
Dec 22, 2009·Chemical Communications : Chem Comm·Stephen M WinterRichard T Oakley
Aug 18, 2010·Chemical Communications : Chem Comm·Elisabeth M FatilaKathryn E Preuss
Jul 27, 2010·Chemical Communications : Chem Comm·Antonio AlberolaJeremy M Rawson
Aug 2, 2016·Journal of the American Chemical Society·Tao LiXinping Wang
Dec 16, 2016·Journal of the American Chemical Society·Yassine BeldjoudiJeremy M Rawson
Apr 4, 2017·Chemistry : a European Journal·Maria FumanalJordi Ribas-Arino
May 25, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·Chad S SmithsonKathryn E Preuss
Jul 22, 2017·Accounts of Chemical Research·Gengwen Tan, Xinping Wang
Apr 1, 2015·Chemical Science·Sergi VelaJordi Ribas-Arino
Jun 13, 2017·Physical Chemistry Chemical Physics : PCCP·S EusterwiemannA Studer
Jul 26, 2018·Physical Chemistry Chemical Physics : PCCP·Tommaso FranceseMercè Deumal
Aug 15, 2012·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Robert C Haddon
Sep 15, 2011·Chemistry : a European Journal·Mikaël KepenekianVincent Robert
Nov 20, 2018·Physical Chemistry Chemical Physics : PCCP·Jessica ExnerHellmut Eckert
Nov 14, 2018·Angewandte Chemie·Mitchell A NascimentoJeremy M Rawson
Jun 8, 2006·Angewandte Chemie·Kentaro OkamotoTamotsu Inabe
Mar 10, 2007·Angewandte Chemie·Osamu SatoYuan-Zhu Zhang
Sep 12, 2007·Dalton Transactions : an International Journal of Inorganic Chemistry·Kathryn E Preuss
May 8, 2009·Dalton Transactions : an International Journal of Inorganic Chemistry·Nigel G R HearnsKathryn E Preuss
May 6, 2010·Acta Crystallographica. Section C, Crystal Structure Communications·Elisabeth M FatilaKathryn E Preuss
Apr 28, 2007·Organic & Biomolecular Chemistry·Robin G Hicks
May 31, 2019·Physical Chemistry Chemical Physics : PCCP·Clàudia ClimentMercè Deumal
Nov 8, 2013·Dalton Transactions : an International Journal of Inorganic Chemistry·Hugh J CowleyJeremy M Rawson
Mar 13, 2020·Physical Chemistry Chemical Physics : PCCP·Melisa Alkan, Andrey Yu Rogachev
Nov 7, 2012·Angewandte Chemie·Paulo N MartinhoGrace G Morgan
Mar 8, 2011·Physical Chemistry Chemical Physics : PCCP·Martin VérotVincent Robert
Jan 21, 2014·Dalton Transactions : an International Journal of Inorganic Chemistry·Ying ChenYou Song

❮ Previous
Next ❯

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.