A [4+2] Condensation Strategy to Imine-Linked Single-Crystalline Zeolite-Like Zinc Phosphate Frameworks
作者:Ritambhara Jangir、Alok Ch. Kalita、Dhananjayan Kaleeswaran、Sandeep K. Gupta、Ramaswamy Murugavel
DOI:10.1002/chem.201800149
日期:2018.4.20
reaction of 1 b with L5 leads to the isolation of a 2D‐boxed‐sheet coordination polymer [Zn4(dipp)4(L5)2]n (7). Selectiveformation of 3D‐framework 5′ from L3 and the 2D‐framework 7 from L5 is due to the angles created by the coordination of para‐ and meta‐pyridyl nitrogen centers at the zinc centers of the D4R cubane. Compound 5′ has been utilized as a catalyst for Knoevenagel condensation.
A novel 3D pillar-layered metal-organic framework: Pore-size-dependent catalytic activity and CO2/N2 affinity
作者:Hosein Ghasempour、Alireza Azhdari Tehrani、Ali Morsali、Jun Wang、Peter C. Junk
DOI:10.1016/j.poly.2020.114422
日期:2020.4
backbone, a comparative study was done on catalytic manner of TMU-25 and TMU-52 toward in aldol-type condensation reaction. TMU-52 was designed through replacing the biphenyl core in the pillar linker of TMU-25 with phenyl group as a better candidate heterogeneous catalysis. The selectivity of the TMU-52 was higher owing to its narrower channels. CO2/N2 affinity of these structures was also investigated
2D holodirected lead(II) halide coordination polymers based on rigid N,N′-bis(4-pyridylmethylidyne) phenylene-1,4-diamine ligand: Syntheses, crystal structures, NBO studies and luminescence properties
作者:Negar Rad-Yousefnia、Behrouz Shaabani、Maciej Kubicki、Mohammad Sadegh Zakerhamidi、Anita M. Grzeskiewicz
DOI:10.1016/j.poly.2017.03.022
日期:2017.6
different halides on coordination parameters and exploitable properties, a series of isostructural lead(II) coordinationpolymers, namely, [Pb(µ-L)(µ-X)2]n (X = Cl (1), Br (2), I (3)) based on rigid ligandN,N′-bis(4-pyridylmethylidyne) phenylene-1,4-diamine (L) were synthesized successfully. The structures of these compounds were elucidated by FT-IR spectroscopy, and single crystal X-ray diffraction
Axial coordination to metalloporphyrins is an important tool in the supramolecularchemistry of these entities. Metalated 5,10,15,20-tetraphenylporphyrins can be axially linked to each other with the aid of amine and diamine ligands. Seven new crystalline materials consisting of such heterogeneous coordination oligomers and polymers of Zn(II)– or Mn(III)–tetraphenylporphyrins have been prepared and
Functionalization of MOF pore walls with azine groups enables greater interaction between the walls and substrate molecules, thereby increasing catalytic activity of the MOFs.