The nitronyl nitroxide biradical, 2,2′-[1,1′-(hexa-2,4-diyne-1,6-diyl)bis(1H-pyrazole-4,1-diyl)]bis(4,4,5,5-tetramethyl-4,5-dihydro-1H-imidazole 3-oxide 1-oxyl), was synthesized. The structure and magnetic properties of the biradical were studied. In the solid state, this nitroxide contains the nonlinear CS-C≡C-C≡C-CS fragment. The CS-C≡C and C≡C-C≡ angles are 172.4(5) and 171.1(3)°, respectively.
合成了一种亚硝基氮氧化物双自由基,即2,2′-[1,1′-(六-2,4-二炔-1,6-二基)二(1H-
吡唑-4,1-二基)]二(4,4,5,5-四甲基-4,5-二氢-
1H-咪唑3-氧化物1-氧基)。对双自由基的结构和磁性进行了研究。在固态下,这种亚硝基氮氧化物含有非线性的CS-C≡C-C≡C-CS片段。CS-C≡C和C≡C-C≡角分别为172.4(5)和171.1(3)°。