English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Many attempts have been made in order to realize organic ferromagnetic materials. Triplet carbenes are regarded as one of the most effective spin sources since magnitude of the exchange coupling between the neighboring centers is large. However, those systems have not employed extensively due to two disadvantages that hinder their further extension to usable magnetic materials. First, a triplet carbene unit is highly unstable and lacks the stability for practical application under ambient conditions. In order to overcome these difficulties, we have made great efforts to stabilize and succeeded in preparing fairly stable ones surviving for days. The second disadvantage that arises is that diazo groups are also generally labile and, hence, are usually introduced at the last step of synthesis.We found, more or less by chance, that a diphenyldiazomethane for a persistent triplet carbene is also persistent at the stage of the diazo compound and, hence, can be further modified, with the diazo group intact, into a more complicated diazo compound. Thus, the diazo compound can be used as a building block to prepare a poly (diazo) compound, which can then generate high-spin polycarbene with considerable thermal stability. Here we would like to summarize how we have used this method to prepare a series of poly (diazo) compounds. Attempts to modify the diazo compound to a more congested derivative by taking advantage of the stability are also mentioned.

Preparation of Poly(diazo) Compounds as Precursors of Organo-Magnetic Materials by Utilizing Diazo Compound as Building Blocks