水杨醛缩1-氨基乙内酰脲的晶体结构及其金属配合物的合成与表征

Crystal structure of salicylaldehyde 1-aminohydantoin,synthesis and characterization of its complexes

在甲醇与冰醋酸的混合溶剂中通过溶剂蒸发法得到了水杨醛缩1-氨基乙内酰脲的单晶,通过X射线单晶衍射法测定了单晶结构。标题化合物(C48H48N12O20),晶胞参数:a=14.247(12)A,b=7.092(6)A,c=13.302(11)A,α=90.0°,β=108.361(11)°,γ=90.0°,V=1275.6(19)A3,Z=1,R=0.0602,wR=0.1667。该化合物是一种靠分子间氢键形成的立体层状结构的超分子化合物。水杨醛缩1-氨基乙内酰脲中的氧原子及氮原子都具有孤对电子,因而具有与金属离子配位的可能。合成出了4种水杨醛缩1-氨基乙内酰脲的过渡金属配合物,通过元素分析、IR及UV表征了配合物的结构。

Single crystal of salicylaldehyde 1-aminohydantoin has been preparedin the mixture of methanol and glacial acetic acid. Its single crystal structure was determined by X–ray diffraction analysis. The unit-cell parameters oftitlecrystal （ C48 H48 N12 O20）：a=14. 247（12） A,b=7. 092（6） A,c=13. 302（11） A,α=90. 0°,β=108. 361（11）°,γ=90. 0°,V=1275. 6（19） A^3,Z=1,R=0. 0602,wR=0. 2281. The title compound is a supramolecular compound denpends on intermolecular hydrogen bonds and formed 3-D space layered structure. Salicylaldehyde 1-aminhydantoinare competent tocoordinate with metal ions,since all ofoxygen atoms and nitrogen atoms in Salicylaldehyde 1-aminhydantoin have lone pair electrons. We havesynthesized four kinds of transition metal complexes with salicylaldehyde 1-aminohydantoin,and their structures wascharacterized by element analysis,IR and UV spectra.