The first Fe(II) complex bearing end-to-end dicyanamide as a double bridging ligand: Crystallography study and Hirshfeld surface analysis; completed with a CSD survey
作者:Zouaoui Setifi、David Geiger、Christian Jelsch、Thierry Maris、Christopher Glidewell、Masoud Mirzaei、Mina Arefian、Fatima Setifi
DOI:10.1016/j.molstruc.2018.07.049
日期:2018.12
, with a rare coordination environment, is the only well-known example in which end-to-end double bridged dca ligands and a bidentate bulky aromatic ligand (dmbpy) are coordinated simultaneously to the iron center. Structural analysis of compound 2 showed it is a novel two-dimensional coordination polymer, constructed from repetition of 4,4′-bpy and dca as a bidentate bridging ligand. Changing the
摘要 两种新的聚合物、一维和二维化合物 [Fe(dmbpy) (μ 1,5 -dca) 2 ] (1) 和 [Fe(4,4'-bpy) (μ 1,5 -dca) 2 ] .0.24(4,4'-bpy).0.5(EtOH) ( 2 ),其中 dmbpy = 5,5'-二甲基-联吡啶,dca = 双氰胺和 4,4'-bpy = 4,4'-联吡啶,已在溶剂热条件下合成,并通过元素分析、FT-IR 光谱和 X 射线单晶衍射充分表征。具有罕见配位环境的化合物 1 是唯一一个众所周知的例子,其中端对端双桥 dca 配体和二齿大芳族配体 (dmbpy) 同时与铁中心配位。化合物 2 的结构分析表明它是一种新型的二维配位聚合物,由 4,4'-bpy 和作为双齿桥连配体的 dca 重复构成。将共配体更改为 4,4'-bpy,导致完全不同的结构几何和网络,这证实了共配体的实质性作用。此外,还进行了 Hirshfeld