Isolation of crystals of a planar nitronyl nitroxide radical: 2-phenylbenzimidazol-1-ylN,N′-dioxide (PBIDO)
作者:Yoshio Kusaba、Masafumi Tamura、Yuko Hosokoshi、Minoru Kinoshita、Hiroshi Sawa、Reizo Kato、Hayao Kobayashi
DOI:10.1039/a608399d
日期:——
A planar nitronyl nitroxide radical,
2-phenylbenzimidazol-1-ylN,Nâ²-dioxide, has been
isolated in a stable single crystal form. X-Ray analysis has shown that
the radical molecules form a dimeric two-dimensional structure. The
dominant magnetic interactions have been found to be antiferromagnetic.
Anomalous temperature dependence of susceptibility was observed below 10
K. The EPR study indicates that this is ascribable to spin-multiplet
states generated in the crystal.
一种平面硝基亚硝氧自由基--2-苯基苯并咪唑-1-基 N,Nâ²-二氧化物以稳定的单晶形式被分离出来。X 射线分析表明,自由基分子形成了二维结构。发现主要的磁性相互作用是反铁磁性的。 在低于 10 K 的温度下观察到了异常的电感温度依赖性。EPR 研究表明,这可归因于晶体中产生的自旋多重态。