《Table 4 Hydrogen bonds for 1 and 2》

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《"Syntheses, Crystal Structures, and Fluorescence Properties of Two 2D→2D Coordination Polymers Based on the Flexible 4-Substituted Bis(1,2,4-triazole) Ligand"》

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Symmetry codes:#4+x，-1+y，+z for 1；#1 1/2-x，1/2+y，3/2-z；#2-x，1-y，1-z for 2

There are hydrogen bond interactions between the coordinated water molecules and the carboxyl oxygen atoms of nbdc from adjacent 2D（6，3）networks（O （7）-H（7w）(43） O（2）#4（+x，-1+y，+z）0.266 5（4）) .There is noπ-πinteractions in complex 2.There are hydrogen bond interactions between the coordinated water molecules and the carboxyl oxygen atoms of MeOip and nitrogen of btre from adjacent 2D（6，3）networks in 2（O （6）-H（6w）(43） O（3）#1（1/2-x，1/2+y，3/2-z）0.262 6（3）；O（7）-H（7w）（43） N（2）#2（1/2-x，1/2+y，3/2-z）（Fig.3（b）） .The hydrogen bond parameters are shown in Table 4.These hydrogen bonding interactions andπ-πinteractions improve the stability of the 2D→2D polythreaded network.The three-fold parallel interpenetration does not increase the dimension（Fig.3 （c）） .Batten group has described the n-fold interpenetrated 2D structures with no increase in dimensionality[26].