《Table 2 Selected bond lengths (nm) and angles (°) for HL and complexes 1~5》

《Table 2 Selected bond lengths (nm) and angles (°) for HL and complexes 1~5》   提示:宽带有限、当前游客访问压缩模式
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《五个吡嗪缩氨基硫脲过渡金属配合物的合成、结构和荧光性质(英文)》


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The diamond drawings of HL and complexes 1~5are shown in Fig.1 and 2.Selected bond distances and angles are listed in Table 2.Hydrogen bond parameters are listed in Table 3.The bond length of C=S in free ligand is 0.168 0(2)nm,which is slightly shorter than that in complexes 2 and 3(0.168 5 (5)~0.169 5(4)nm) ,showing that the TSC ligand is neutral in both complexes[17].On the contrary,the enolization of C=S in complexes 1,4 and 5 can be confirmed by the bond lengths of C-S in a range of 0.172 1(8)~0.175 6(4)nm,which are in excellent agreement with other previously known acylhydrazone complexes in the literature[17].In the crystal of HL,the molecules are linked into centrosymmetric dimers by pair of intermolecular N-H…O hydrogen bonds,forming a R22(10)ring motif.