(Nitronyl nitroxide)-substituted trioxytriphenylamine radical cation tetrachlorogallate salt: a 2p-electron-based weak ferromagnet composed of a triplet diradical cation

Chemistry, an Asian Journal
Masato KuratsuKeiji Okada

Abstract

The synthesis and the solid state magnetic properties of (nitronyl nitroxide)-substituted trioxytriphenylamine radical cation tetrachlorogallate, NNTOT(+)⋅GaCl(4)(-), are reported. In the temperature region between 300 and 3 K, the magnetic behavior is characterized by the strong intramolecular ferromagnetic interaction (J/k(B)=+400 K) between the radical (NN) and the radical cation (TOT(+)) and the weak intermolecular antiferromagnetic interaction (J/k(B)=-1.9 K) between NNTOT(+) ions. Below 3 K, a 3D-type long-range magnetic ordering into a weak ferromagnet was observed (T(N)=2.65 K). The magnetic entropy (S(mag)=8.97 J K(-1)  mol(-1)) obtained by the heat capacity measurement is in good agreement with the theoretical value of R ln3=9.13 J K(-1)  mol(-1) based on the S=1 state.

References

Nov 17, 2001·Science·A RajcaS Rajca
Jan 28, 2003·Angewandte Chemie·Dante Gatteschi, Roberta Sessoli
Jul 19, 1991·Science·P M AllemandJ D Thompson
Nov 2, 2007·Inorganic Chemistry·Masato KuratsuKeiji Okada
Jan 16, 2008·Journal of the American Chemical Society·Kevin BernotArie van der Lee
Apr 2, 2009·Journal of the American Chemical Society·Yuki MasudaKeiji Okada
Mar 17, 2011·Chemical Society Reviews·Tadashi SugawaraKentaro Suzuki
Nov 29, 2011·Dalton Transactions : an International Journal of Inorganic Chemistry·Seong-Hun ParkYoung-Duk Huh

❮ Previous
Next ❯

Citations

Feb 16, 2016·Dalton Transactions : an International Journal of Inorganic Chemistry·M YamamuraT Nabeshima
Feb 7, 2017·Dalton Transactions : an International Journal of Inorganic Chemistry·Shuichi SuzukiKeiji Okada
Sep 5, 2017·Chemistry : a European Journal·Shuichi SuzukiKeiji Okada
Mar 30, 2019·Chemistry : a European Journal·Takuma TaharaKeiji Okada
Jan 24, 2020·Chemistry : a European Journal·Tobias A SchaubMilan Kivala
Dec 10, 2019·Chemistry : a European Journal·Atsuki NagataKeiji Okada
Dec 25, 2019·Chemistry : a European Journal·Kubandiran Kolanji, Martin Baumgarten
Apr 1, 2020·Molecules : a Journal of Synthetic Chemistry and Natural Product Chemistry·Evgeny TretyakovVictor Ovcharenko
Oct 19, 2012·Journal of the American Chemical Society·Xun ZhangKeiji Okada
Jul 26, 2013·Chemical Reviews·Manabu Abe
Mar 5, 2020·The Journal of Physical Chemistry. a·Elena ZaytsevaDmitrii Mazhukin
Aug 20, 2020·Organic Letters·Takayuki MiyamaeKeiji Okada

❮ 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.