A tert-butyl/cyano substituted (1,2,3,5-dithiadiazolyl)benzene and η2 π complexes with CpCr(CO)2
作者:René T. Boeré、Lai-Yoong Goh、Chwee Ying Ang、Seah Ling Kuan、Hiu Fung Lau、Victor Wee Lin Ng、Tracey L. Roemmele、Sonja D. Seagrave
DOI:10.1016/j.jorganchem.2006.11.049
日期:2007.6
A rational synthesis for 5-tert-butyl-3-cyano-1-(1,2,3,5-dithiadiazolyl)benzene, which was first observed from thermal cleavage of the bis-dithiadiazolyl, has been developed. Voltammetry and electron paramagnetic resonance (EPR) spectra for this radical are reported and its X-ray structure is described. Despite the bulky tBu substituent, the cyano supramolecular synthon is still able to maintain links
已开发出一种合理合成5-叔丁基-3-氰基-1-(1,2,3,5-二噻二唑基)苯的方法,该方法首先是从二-二噻二唑基的热裂解中观察到的。报告了该自由基的伏安法和电子顺磁共振(EPR)光谱,并描述了其X射线结构。尽管笨重的t Bu取代基,如先前在氰基取代的二噻二唑基中所观察到的那样,氰基超分子合成子仍然能够保持与S 2单元的单个相邻硫原子的连接。在η 2复合物与CPCR(CO)2,没有这样的相互作用中观察到; 腈基通过与对位的弱接触形成中心对称的二聚体伙伴分子的芳基环上的H原子。这种行为与体积较小的二噻二唑类似的络合物形成对比,后者分子间的相互作用保留在晶格中。