Structural modulation of polythreading and interpenetrating coordination networks with an elongated dipyridyl building block and various anionic co-ligands

Construction of six coordination networks based on a flexible bis(methylbenzimidazole) ligand and isomeric benzenedicarboxylates

“…for C 27 H 24 ZnN 4 O 4 : C,60.74;H,4.53;N,10.49. Found: C,60.75;H,4.52;N,10.51%. IR (KBr, cm À1 ): 3362 (w), 2932 (w), 1620 (s), 1594 (w), 1460 (m), 1375 (s), 1296 (w), 1154 (w), 761 (s), 702 (w).…”

“…Therefore, selective design of organic ligands are usually crucial for the formation of novel frameworks. Flexible ligands containing N-donors [10][11][12], which possess rich structural information and free conformation, are highly attractive because their flexibilities allow for greater structural diversity [13][14][15][16][17][18][19][20]. Among them, the flexible bis-imidazole/triazole/benzimidazole ligands, such as 1,1 0 -(1,4-butanediyl)bis(imidazole) [21], 1,4-bis(imidazol-1-ylmethyl)benzene [22,23], 1,2-bis(1,2,4-triazol-4-yl)ethane [24,25], 1,1-(1,4-butanediyl)bis-1H-benzimidazole [26] have been widely reported.…”

Recent advances in CdII coordination polymers: Structural aspects, adaptable assemblies, and potential applications

“…For example, in [Cd(pypz) 2 (dca) 2 ] n and [Cd(pypz) 2 (SCN) 2 ] n , the octahedral Cd II ions are bridged by bis[3,5-dimethyl-4-(4′-pyridyl)pyrazol-1-yl]methane (pypz, see Scheme 1f) to form 2-D sql layers with large square grids [56]. Such wavelike patterns take a parallel stacking mode with the (a) bhpop [43] [46] N N N N (d) dpq [47] (e) H 2 pa [53] OH [56] N N N COOH HOOC COOH (g) H 3 tatb [62] N H [65] O N N SH N (j) Hpyt [66] [73] N N N N N N (n) ibmb [85] COOH [86] N N OH Cl Cl OH (p) L [87,88] Scheme 1. Chemical structures of partial organic ligands related to this review.…”

Crystal structure of tetraaqua-cis-bis(N-2-nitrobenzenesulfonylglycinato) cobalt(II), Co(H2O)4(C8H7N2O6S)2

“…The design and synthesis of new metal-organic frameworks has been proven to be apromising field, not only due to their potential applications as functional solid materials in host-guest chemistry, ion exchange and catalysis, but also owing to their intriguing variety of architectural features and fascinating new topologies [1][2][3][4][5][6][7]. Intelligent design of ligands and proper choice of metal centers are the main keys to the preparation of new coordination polymers.…”