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设计合成一种新型对称的草酰胺桥联配体:N,N′-二(4-羟基-3-甲氧基苯甲基)草酰胺配体(H4LB).通过红外光谱、元素分析、核磁、熔点测定及晶体结构解析对其进行了表征.晶体结构研究表明配体H4L为顺式桥联分子,晶体中存在两种氢键,一种是草酰胺基团的O原子与苯环上的酚羟基形成O—H…O氢键[d(O—H…O)=2.906(2),∠O—H…O=151.8°];另一种是草酰胺基团的氨基与相邻草酰胺基上的O原子形成N—H…O氢键[d(N—H…O)=2.849(2),∠N—H…O=158.7°],通过上述两种氢键将化合物H4LB连接成二维网络结构.
A new type of symmetrical oxalate bridging ligand (N, N’-bis (4-hydroxy-3-methoxybenzyl) oxalamide ligand (H4LB) was designed and synthesized.FTIR, elemental analysis, , Melting point determination and crystal structure analysis.The crystal structure of H4L shows that the ligand H4L is a cis-bridge molecule, there are two kinds of hydrogen bonds in the crystal, one is O atom of oxalamide group and a The phenolic hydroxyl group forms O-H ... O hydrogen bond [d (O-H ... O) = 2.906 (2), ∠O-H ... O = 151.8 °] The O atom on the amide forms N-H ... O hydrogen bond [d (N-H ... O) = 2.849 (2), ∠N-H ... O = 158.7 °]. Compound H4LB is connected via the two hydrogen bonds Into a two-dimensional network structure.