Two Isomers with FSC Topology Constructed from Cu₆I₆(DABCO)₄ and Cu₈I₈(DABCO)₆ Building Blocks

Abstract

Two isomers of copper halides of the framework formula (CuI) 7 (DABCO) 2.5 were prepared by solvothermal methods, and their structures were determined by single-crystal X-ray diffraction. Both of the structures contain two types of secondary building units, which are connected differently giving rise to two three-dimensional structures. These two structures both contain FSC topology, which is only predicted by O'Keeffe in theory, and is the first observation, to our knowledge, of FSC topology in coordination polymers. The formations of these structures show a good example of different connectivity between the building units that can form different structures. The compounds have been characterized by powder X-ray diffraction, elemental analysis, thermogravimetric analysis (TGA), and photoluminescence studies.

A supermolecular building approach for the design and construction of metal–organic frameworks

“…[176][177][178][179][180] The first fsc-MOF was reported in 2007 by Feng et al, based on Cu 6 I 6 and Cu 8 I 8 MBBs bridged by DABCO, but again, would be difficult to employ in a pillaring strategy. 181 Interestingly, the number of kag-MOFs, i.e., kgm layers pillared in the same A-A fashion is scarce. These MOFs would potentially offer more void space than their pcu analogues.…”

Crystal structure of two dimensional polymeric poly[bis(μ3-chloro)-(μ2-2- aminopyrimidine-κ2N,N')-dicopper(I)], C8H10Cl4Cu4N6

“…Numerous structural motifs such as rhomboid Cu 2 X 2 dimers, cubane Cu 4 X 4 tetramers, double-stranded [CuX] n ladders, and several types of chains are found in copper halide complexes [1][2][3][4][5][6][7][8][9][10]. Double-stranded ladders are one of the important building units in constructing coordination complexes with other organic ligands [6][7][8][9][10].…”

“…Double-stranded ladders are one of the important building units in constructing coordination complexes with other organic ligands [6][7][8][9][10]. The title structure is an isotype to the corresponding bromide [11].…”

Structure and properties of cobalt ortho-phenylenediacetate coordination polymers with rigid dipyridyl ligands

“…This net can be considered a derivative of the commonly encountered 6-connected primitive cubic pcu net, but with two trans pillars removed at every other node. This fsc net is seldom encountered in coordination polymer chemistry, with the cluster-based species [(CuI) 7 (DABCO) 2.5 ] n [36] and pillared sheet coordination polymer [Cd(l 4 -SO 4 )(bpy)] n [37] being among the few reported examples.…”