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Pregled bibliografske jedinice broj: 829681

Fine tuning of π-stack separation distances of semiquinone radicals affects their magnetic and electric properties


Molčanov, Krešimir; Stilinović, Vladimir; Šantić, Ana; Maltar-Strmečki, Nadica; Pajić, Damir; Kojić-Prodić, Biserka
Fine tuning of π-stack separation distances of semiquinone radicals affects their magnetic and electric properties // Crystal growth & design, 16 (2016), 9; 4777-4782 doi:10.1021/acs.cgd.6b00675 (međunarodna recenzija, članak, znanstveni)


Naslov
Fine tuning of π-stack separation distances of semiquinone radicals affects their magnetic and electric properties

Autori
Molčanov, Krešimir ; Stilinović, Vladimir ; Šantić, Ana ; Maltar-Strmečki, Nadica ; Pajić, Damir ; Kojić-Prodić, Biserka

Izvornik
Crystal growth & design (1528-7483) 16 (2016), 9; 4777-4782

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Semiquinone ; crystal engineering ; spin coupling ; Peierls deformation ; semiconductivity

Sažetak
Two salts of tetrachloro- (chloranil, Cl4Q) and tetrabromosemiquinone (bromanil, Br4Q) radical anions with an organic cation N- methylpyridinium (N-MePy), displaying a variety of tunable electrical and magnetic properties, are characterized. These systems comprise π- stacks of equidistant semiquinone radical anions, without Peierls deformation and diamagnetic spin coupling. Both are stable up to 150 and 120°C in air, respectively, and are semiconductors with conductivities of 10-6 – 10-7 (Ohm cm)-1 in the single crystals. The room-temperature concomitant crystallization of two polymorphs with different magnetic properties (antiferromagnetic and Peierls- distorted diamagnetic) has been observed for Cl4Q∙N-MePy. The semiquinone radical organic salts represent a novel class of potential (multi)functional materials with tunable properties.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Kemija



POVEZANOST RADA


Projekt / tema
HRZZ-IP-2013-11-1108 - Karakterizacija niskotemperaturne molekulske dinamike sustava s neuređenom rešetkom metodom ESR (Marina Kveder, )
HRZZ-IP-2014-09-4079 - Novi metal-organsi sustavi s oksalatnim i kinoidnim ligandima s podešenim svojstvima pogodnim za primjenu (Krešimir Molčanov, )
HRZZ-UIP-2014-09-8276 - Multiferični i magnetoelektrični sustavi (Damir Pajić, )

Ustanove
Institut "Ruđer Bošković", Zagreb,
Prirodoslovno-matematički fakultet, Zagreb

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus


Uključenost u ostale bibliografske baze podataka:


  • CA Search (Chemical Abstracts)


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