Co-crystals of 9,9′-bianthracene-10,10′-dicarboxylic acid with linear bidentate basic ligand molecules: synthesis, crystal structure, and properties based on the layer structure exfoliated by water
作者:Misaki Okayasu、Shoko Kikkawa、Hidemasa Hikawa、Isao Azumaya
DOI:10.1039/c9ce01460h
日期:——
Co-crystals of 9,9′-dianthracene-10,10′-dicarboxylic acid (1) with the linear bidentate bases 9,9′-biacridine (bac), phenazine (phez), 4,4′-dipyridine (dpy), and DABCO (dabco) were synthesized. In the crystal structures of the co-crystals of 1 and bac, phez, and dpy, one-dimensional (1D) structures were formed through the hydrogen bonding between the acid and the base. For each combination of the acid
9,9'-二蒽-10,10'-二羧酸(1)与线性双齿双碱基9,9'-双cr啶(bac),吩嗪(phez),4,4'-联吡啶(dpy)的共晶体,并合成了DABCO(dabco)。在1与bac,phez和dpy的共晶体的晶体结构中,通过酸和碱之间的氢键形成一维(1D)结构。对于酸和碱的每种组合,获得了几种具有相似结构的多晶型共晶体。其中1和dabco的组合得到三种具有层状结构的共晶体。在一种共晶体中,观察到一种现象,其中的晶体层可能因滴水而剥落。共晶体的二维(2D)指纹图表明,形成一维结构的主要相互作用是O–H⋯N氢键,形成层状结构的主要相互作用是CH–π相互作用,并且后者在晶体坚固性上的相互作用要强于前者在共晶体中的相互作用。