Self-assembly of nanometre-scale metallacalix[4]arene building blocks and Keggin units to a novel (3,4)-connected 3D self-penetrating framework

Abstract

A novel (3,4)-connected 3D self-penetrating metal-organic framework with a nanometre-scale cavity constructed from metallacalix[4]arene building blocks and Keggin-type polyanions has been obtained by using a 1,3-bis(1-methyl-5-mercapto-1,2,3,4-tetrazole)propane ligand.

Three 3D Metal-Organic Frameworks Constructed from Keggin Polyanions and Multi-nuclear AgI Clusters: Assembly, Structures and Properties

“…It is noted that the channels of the 3D MOF are double-occupied by Keggin SiMo 12 group reported a double-Keggin POM-templated, molybdenum-oxide-based inorganic-organic hybrid compound [22]. Our group also reported two metalorganic complexes based on double Keggin-type polyoxometalate templates [23].…”

“…Compound 1 shows a 3D MOF with large channels with five-connected SiMo 12 5 ] subunits in the 3D MOF. In these compounds, both the polyanions and the ptz − ligands exhibit a variety of coordination modes.…”

“…The H atoms attached to carbon atoms were generated geometrically while the H atoms attached to water molecules were not located. 12 O 40 ] 2− in 3 were not located. In these cases, the H atoms are commonly considered to be associated with the POM anions [17, 20, 30 -32].…”

Crystal structure of poly[(μ4-1-methyl-1H-tetrazole-5-thiolato-κ3 S:S:N:N′)copper(I)], C2H3CuN4S

“…Coordination polymers constructed from 1H-tetrazole-5-thiol and its derivatives have received much attention because of the diverse coordination properties of these ligands [1][2][3][4][5][6][7][8]. In order to further develop this branch of coordination chemistry research, the title coordination polymer based on Liu and Zhang: C 2 H 3 CuN4S Table 3: Fractional coordinates and atomic displacement parameters (Å 2 ).…”

Crystal structure of pentaerythrityl tetrakis(1-methyl-5-mercapto-1,2,3,4- tetrazole), C13H20N16S4

“…The introduction of S-groups to the N-donor ligands may bring somealternatives to construct MOFs due to the excellent coordination ability of sulfur atomstotransition metals [2]. Because of the special arrangement of the four nitrogen atoms, this ligand offers intriguing characteristics: (i) the four nitrogen atomscan act as four potential coordination nodes; (ii) the four nitrogen atomsc an twist around the quaternary carbon atom (C center )and four CH 2 groups with different bond angles to meet the requirements of the metals.…”