Journal ArticleDOI
Bistability and the Phase Transition in 1,3,2-Dithiazolo[4,5-b]pyrazin-2-yl
Jaclyn L. Brusso,Owen P. Clements,Robert C. Haddon,Mikhail E. Itkis,Alicea A. Leitch,Richard T. Oakley,Robert W. Reed,John F. Richardson +7 more
Reads0
Chats0
TLDR
The structural interconversion is suggested to proceed via the cooperative breaking and making of intermolecular S- - -N interactions and an inversion symmetry-preserving "domino cascade" of the pi-stacked rings.Abstract:
The molecular radical 1,3,2-dithiazolo[4,5-b]pyrazin-2-yl (PDTA) exhibits magnetic bistability just above room temperature, undergoing a well-defined hysteretic phase change with TC↓ = 297(1) K and TC↑ = 343(1) K. The crystal structures of the two phases of PDTA have been determined by single-crystal X-ray diffraction at 323(2) K. LT-PDTA consists of diamagnetic (S = 0) nearly superimposed π-dimer stacks, while that of HT-PDTA comprises slipped stacks of π-radicals (S = 1/2). The structural interconversion is suggested to proceed via the cooperative breaking and making of intermolecular S- - -N interactions and an inversion symmetry-preserving “domino cascade” of the π-stacked rings.read more
Citations
More filters
Book ChapterDOI
1,3-Oxa/thia-2-azoles
TL;DR: The chemistry of 1,3,2-dithiazoles and their derivatives were not investigated in this period as discussed by the authors, but their properties and properties have been studied in the literature.
Journal ArticleDOI
Strategies for the annulation of five-membered sulfur-nitrogen rings to benzene and heterocycles
TL;DR: In this article , a review of the most popular and new or unexpected methods for the synthesis of sulfur-nitrogen heterocycles is considered, especially in materials science and in biomedicine.
Book ChapterDOI
8 – Magnetic Bistability in Molecule-based Magnetic Materials
TL;DR: In this paper, a phase control by photoirradiation was successfully achieved on TTTA, taking advantage of the bistability around room temperature, where the spirobiphenalenalenyl neutral radicals are reported to simultaneously exhibit bistabilities in three physical channels: electrical, optical, and magnetic.
Journal ArticleDOI
Benzenetriimide-Based Molecular Conductor with Antiferro- to Ferromagnetic Switching Induced by Structural Change of π-stacked Array.
Shohei Koyama,Yoji Horii,Tetsu Sato,Shinya Takaishi,Norihisa Hoshino,Tomoyuki Akutagawa,Hiroaki Iguchi +6 more
TL;DR: In this article , the π-stack column of BTI-Me-based charge transfer complexes with electrical conductivity was shown, where the interaction between spin switches by the structural change was investigated.
References
More filters
Journal ArticleDOI
Magneto-Opto-Electronic Bistability in a Phenalenyl-Based Neutral Radical
TL;DR: A new organic molecular conductor, based on a spiro-biphenalenyl neutral radical, simultaneously exhibits bistability in three physical channels: electrical, optical, and magnetic.
Journal ArticleDOI
Room-Temperature Magnetic Bistability in Organic Radical Crystals
TL;DR: A large first-order magnetic phase transition in an organic radical, 1,3,5-trithia-2,4,6-triazapentalenyl, is described and may have applications in thermal sensors, switching units, and information storage media based on organic radical crystals.
Journal ArticleDOI
Bistabilities in 1,3,2-dithiazolyl radicals.
Jaclyn L. Brusso,Owen P. Clements,Robert C. Haddon,Mikhail E. Itkis,Alicea A. Leitch,Richard T. Oakley,Robert W. Reed,John F. Richardson +7 more
TL;DR: A mechanism for the interconversion of the two phases of PDTA and related structures is proposed in which hysteretic behavior arises from cooperative effects associated with the breaking and making of a lattice-wide network of intermolecular S - - -N' and/or S- - -S' interactions.
Journal ArticleDOI
Redox, magnetic, and structural properties of 1,3,2-dithiazolyl radicals. a case study on the ternary heterocycle s3n5c4
a T. M. Barclay,A. W. Cordes,b N. A. George,c R. C. Haddon,c M. E. Itkis,d M. S. Mashuta,b G. W. Patenaude,b R. W. Reed,d and J. F. Richardson +8 more
TL;DR: In this article, the characterization of the heterocyclic radical 1,2,5-thiadiazolo [3,4-b]-1,3,2-dithiazolo[3, 4-b]pyrazin-2-yl (TDP-DTA) is described.
Journal ArticleDOI
Synthesis, crystal structures, electronic structure and magnetic behaviour of the trithiatriazapentalenyl radical, C2S3N3
Gordon D. McManus,Jeremy M. Rawson,Neil Feeder,Joost van Duijn,Eric J. L. McInnes,Juan J. Novoa,Ramón Burriel,Fernando Palacio,Patricia B. Oliete +8 more
TL;DR: In this article, a novel synthesis of the title compound, C2S3N3======677(1) is reported, which is based on DFT calculations and X-ray diffraction in the region 300-225k and reveals a regular π-stacked structure.