Synthesis and Magnetic Properties of (Pyrrolidin‐1‐oxyl)–(Nitronyl Nitroxide)/(Iminonitroxide)‐Dyads | Zendy

Tsujimoto Haruki | Zendy; Suzuki Shuichi | Zendy; Kozaki Masatoshi | Zendy; Shiomi Daisuke | Zendy; Sato Kazunobu | Zendy; Takui Takeji | Zendy; Okada Keiji | Zendy

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Synthesis and Magnetic Properties of (Pyrrolidin‐1‐oxyl)–(Nitronyl Nitroxide)/(Iminonitroxide)‐Dyads

Author(s) -

Tsujimoto Haruki,

Suzuki Shuichi,

Kozaki Masatoshi,

Shiomi Daisuke,

Sato Kazunobu,

Takui Takeji,

Okada Keiji

Publication year - 2019

Publication title -

chemistry – an asian journal

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.18

H-Index - 106

eISSN - 1861-471X

pISSN - 1861-4728

DOI - 10.1002/asia.201801615

Subject(s) - nitroxide mediated radical polymerization , atom (system on chip) , chemistry , singlet state , dyad , carbon atom , spin (aerodynamics) , conjugated system , crystallography , spin polarization , polymer , atomic physics , physics , ring (chemistry) , organic chemistry , excited state , radical polymerization , computer science , acoustics , copolymer , thermodynamics , embedded system , quantum mechanics , electron

Unlike extensively studied diradicals linked by π‐conjugated systems, only a few studies have investigated weakly coupled diradicals linked by an sp 3 carbon atom. Herein, we prepared pyrrolidin‐1‐oxyl–(nitronyl nitroxide)‐dyad 5 and pyrrolidin‐1‐oxyl–iminonitroxide‐dyad 6 . From the observed temperature dependence of the magnetic susceptibility, 5 and 6 were determined to be in singlet ground states with 2 J intra / k B =−35.2 K and −13.6 K, respectively. From these results and theoretical calculations of related diradicals, the spin‐polarization model counting the small spin density of the sp 3 carbon atom could be used as a spin‐prediction model.

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