Substituent Effects on the Zero‐Field Splitting Parameters of Localized Triplet, 1,3‐Cyclopentanediyl Biradicals | Zendy

Adam Waldemar | Zendy; Fröhlich Lothar | Zendy; Nau Werner M. | Zendy; Korth HansGent | Zendy; Sustmann Reiner | Zendy

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Substituent Effects on the Zero‐Field Splitting Parameters of Localized Triplet, 1,3‐Cyclopentanediyl Biradicals

Author(s) -

Adam Waldemar,

Fröhlich Lothar,

Nau Werner M.,

Korth HansGent,

Sustmann Reiner

Publication year - 1993

Publication title -

angewandte chemie international edition in english

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 0570-0833

DOI - 10.1002/anie.199313391

Subject(s) - spins , zero field splitting , zero (linguistics) , electron paramagnetic resonance , reactivity (psychology) , substituent , cube (algebra) , inverse , field (mathematics) , zero point energy , chemistry , physics , condensed matter physics , molecular physics , computational chemistry , nuclear magnetic resonance , quantum mechanics , mathematics , stereochemistry , electron , geometry , spin polarization , medicine , linguistics , philosophy , alternative medicine , pathology , pure mathematics

Information about the reactivity of the corresponding monoradicals is provided by the D parameters of the biradicals 1 . The zero‐field splitting parameter D , which can be obtained from the EPR spectrum of a localized triplet biradical, increases with the inverse cube of the average distance between the unpaired spins. For para ‐substituted, bisbenzylic triplet 1,3‐cyclopentanediyls 1 , the D parameter varies measurably depending on the substituents X.

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