Role of cooperative templates in the self-assembly process of microporous structures: syntheses and characterization of 12 new silver halide/thiocyanate supramolecular polymers

Abstract

12 new cation-templated complexes, {(BMPB)[AgI 3 ]} (BMPB ¼ 1, 4-bis (methylpyridinium) benzene) 12), have been synthesized via the self-assembly reaction in solution. Owing to the cooperative template effects from organic cations and halide/thiocyanate anion compounds 1-11 contain a mononuclear anion structure [AgI 3 ] 2À (1), a dimeric anion [Ag 2 I 6 ] 4À (2), linear chain [Ag 2 X 4 ] 2À (3-10) and a cubanelike based one-dimensional anionic chain [Ag 4 I 6 ] 2À (11) that are enclosed into the different cationic channels formed from the pyridinium, phenanthrolinium and imidazolium. While for 12, the compound possesses an infinite 2D supramolecular polypseudorotaxane penetrated by geminal dicationic groups.

Different Contributions of Aliphatic and Conjugated Organic Cations to Both the Crystal and Electronic Structures: Three Hybrid Iodoargentates Showing Two Isomers of the (AgI2)– Chain

“…These layers are further packed along the [011] direction through the electrostatic forces to form a 3D supramolecular framework (Figure 3, b). The N ··· I distances that vary from 3.637(3) to 3.672(3) Å and the N–H ··· I angles that vary from 137.4 to 160.0° are comparable with the corresponding values of the similar N–H ··· I hydrogen bonds in the literature (Table S2 in the Supporting Information) 6b,6d,9h. As for 2 , structural analysis indicates that the shortest H ··· I distance of 3.106 Å is longer than the sum of their van der Waals radii, thus indicating that there are electrostatic forces instead of hydrogen bonds between the methylated teda cations and the α‐(AgI 2 ) – chains (Figure 4).…”

“…Because the (H 2 pipe) 2+ , (Me 2 teda) 2+ , and (H 2 dpe) 2+ cations all act as countercations in their corresponding structures, the iodoargentate anionic framework collapses during the removal of the organic cations. For 1 , the weight loss of 40.4 % before reaching 616 °C can be attributed to the loss of one (H 2 pipe)I 2 per formula (theoretical value of 40.12 %) 6b,8b. Before reaching the temperature of 616 °C, compounds 2 and 3 show a weight loss of 44.5 and 47.1 %, respectively, which might be due to the decomposition of one (Me 2 teda)I 2 (theoretical value of 45.75 %) per formula for 2 and one (H 2 pipe)I 2 (theoretical value of 48.27 %) per formula for 3 .…”

Synthesis, Structures, and Properties of {(BDMLP)2[Pb2I8]} and {(MLDE)[PbI3]} Induced by N-Containing Organic Cation Templates

“…All of the nonhydrogen atoms were refined anisotropically. [17] The hydrogen atoms were assigned with common isotropic displacement factors and included in the final refinement by using geometrical restrains. The crystallographic data is summarized in Table 1.…”

Syntheses, Crystal Structures, and Photocatalytic Properties of Bromoargentates Induced by Transition‐Metal–phen Complex Cations

“…To date, a large number of silver(I) iodine [Ag m I n ] ( n – m )– anions ranging from discrete clusters (0D) to one‐dimensional (1D) chains, two‐dimensional (2D) layers, and three‐dimensional (3D) frameworks have been reported and characterized. Examples of iodoargentate anions include the 0D clusters [Ag 4 I 8 ] 4– , [Ag 14 I 16 ] 2– , and [Ag 14 I 22 ] 8– ; the 1D chains [Ag 2 I 3 ] – , [Ag 2 I 4 ] 2– , [Ag 3 I 5 ] 2– , [Ag 4 I 6 ] 2– , [Ag 5 I 7 ] 2– , [Ag 5 I 9 ] 4– , [Ag 6 I 9 ] 3– , and [Ag 11 I 15 ] 4– ; the 2D layers [Ag 2 I 3 ] – , [Ag 4 I 5 ] – , [Ag 5 I 6 ] – , [Ag 6 I 8 ] 2– , and [Ag 6 I 9 ] 3– ;[3c], [15b], and the 3D networks [AgI 2 ] – , [Ag 2 I 4 ] 2– , [Ag 4 I 6 ] 2– , [Ag 5 I 6 ] – , [Ag 5 I 7 ] 2– , [Ag 9 I 13 ] 4– , [Ag 12 I 16 ] 4– , [Ag 13 I 17 ] 4– , and [Ag 14 I 16 ] 2– , . The structures and dimensionalities of iodoargentates are influenced by various factors, including pH value, solvent, and reaction temperature in the synthesis process and structure‐directing agents (SDAs).…”