Solvent-induced secondary building unit (SBU) variations in a series of Cu(ii) metal–organic frameworks derived from a bifunctional ligand

2015 ◽  
Vol 44 (19) ◽  
pp. 8926-8931 ◽  
Author(s):  
Di-Ming Chen ◽  
Jian-Gong Ma ◽  
Peng Cheng
Keyword(s):  
Metal Organic Frameworks ◽  
Three Dimensional ◽  
Structural Features ◽  
Secondary Building Unit ◽  
Building Unit ◽  
Bifunctional Ligand ◽  
Metal Organic ◽  
Solvothermal Conditions

Three new three-dimensional (3D) Cu(ii) metal–organic frameworks (MOFs) with interesting SBU variations have been successfully constructed under solvothermal conditions by using a bifunctional ligand. The structural features of the three MOFs and CO2 sorption performances were studied.

scholarly journals Nickel(ii) metal–organic frameworks with N,N′-di(4-pyridyl)-naphthalenediimide ligands: influence of secondary building unit geometry on dimensionality and framework dimensions

CrystEngComm ◽  
2017 ◽  
Vol 19 (37) ◽  
pp. 5558-5564 ◽  
Author(s):  
Constance R. Pfeiffer ◽  
Naomi Biggins ◽  
William Lewis ◽  
Neil R. Champness
Keyword(s):  
Intermolecular Interactions ◽  
Metal Organic Frameworks ◽  
Metal Coordination ◽  
Coordination Geometry ◽  
Secondary Building Unit ◽  
Building Unit ◽  
Metal Organic

The influence of intermolecular interactions and metal coordination geometry on MOF framework dimensions are discussed.

scholarly journals Magnetism and Luminescence of a MOF with Linear Mn3 Nodes Derived from an Emissive Terthiophene-Based Imidazole Linker

Molecules ◽  
2021 ◽  
Vol 26 (14) ◽  
pp. 4286
Author(s):  
Weiran Wang ◽  
Junpeng He ◽  
Hongyu Guo ◽  
Samuel G. Dunning ◽  
Simon M. Humphrey ◽  
...  
Keyword(s):  
Photophysical Properties ◽  
Metal Organic Framework ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
Secondary Building Unit ◽  
X Ray ◽  
Dual Functional ◽  
Metal Organic ◽  
One Step ◽  
Solvothermal Conditions

A new terthiophene-based imidazole luminophore 5,5’-(1H-thieno[3,4-d]imidazole-4,6-diyl)bis(thiophene-2-carboxylic acid) (TIBTCH2, 5) was synthesized in one step from previously reported 4,6-di(thiophen-2-yl)-1H-thieno[3,4-d]imidazole (DTTI, 4), and their photophysical properties were studied and compared accordingly. Under solvothermal conditions, reacting 5 with Mn(OAc)2 yielded a new three-dimensional metal-organic framework (MOF, 6) which was structurally defined by single-crystal X-ray diffraction. In 6, all Mn(II) ions octahedrally bind to carboxylate-O atoms to form a linear Mn3 secondary building unit (SBU) that contains three distinct coordination modes. Importantly, 6 exhibits dual functional properties of ligand-based emission and metal-based magnetic behaviors.

scholarly journals A Heterometallic Three-Dimensional Metal−Organic Framework Bearing an Unprecedented One-Dimensional Branched-Chain Secondary Building Unit

Molecules ◽  
2020 ◽  
Vol 25 (9) ◽  
pp. 2190
Author(s):  
Jing Chen ◽  
Meng-Yao Chao ◽  
Yan Liu ◽  
Bo-Wei Xu ◽  
Wen-Hua Zhang ◽  
...  
Keyword(s):  
Metal Organic Framework ◽  
3D Structure ◽  
Three Dimensional ◽  
Solvothermal Reaction ◽  
Secondary Building Unit ◽  
One Dimensional ◽  
Building Unit ◽  
Metal Organic ◽  
Branched Chain ◽  
Organic Framework

A heterometallic metal−organic framework (MOF) of [Cd6Ca4(BTB)6(HCOO)2(DEF)2(H2O)12]∙DEF∙xSol (1, H3BTB = benzene-1,3,5-tribenzoic acid; DEF = N,N′-diethylformamide; xSol. = undefined solvates within the pore) was prepared by solvothermal reaction of Cd(NO3)2·4H2O, CaO and H3BTB in a mixed solvent of DEF/H2O/HNO3. The compatibility of these two divalent cations from different blocks of the periodic table results in a solid-state structure consisting of an unusual combination of a discrete V-shaped heptanuclear cluster of [Cd2Ca]2Ca′ and an infinite one-dimensional (1D) chain of [Cd2CaCa′]n that are orthogonally linked via a corner-shared Ca2+ ion (denoted as Ca′), giving rise to an unprecedented branched-chain secondary building unit (SBU). These SBUs propagate via tridentate BTB to yield a three-dimensional (3D) structure featuring a corner-truncated P41 helix in MOF 1. This outcome highlights the unique topologies possible via the combination of carefully chosen s- and d-block metal ions with polydentate ligands.

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