Shin-ichiro Noro

Rational Synthesis of Stable Channel‐Like Cavities with Methane Gas Adsorption Properties: [{Cu2(pzdc)2(L)}n] (pzdc=pyrazine‐2,3‐dicarboxylate; L=a Pillar Ligand)

Stable tunable channels are formed by pillared-layer-type coordination networks [{Cu2(pzdc)2(L)}n] (pzdc = pyrazine-2,3-dicarboxylate; L = pyrazine, 4,4′-bipyridine, N-(4-pyridyl)isonicotinamide). Not only their channel sizes, shapes, and chemical environments are systematically built up by tuning the pillar ligands, but also the porosity is maintained in the absence of the included guest molecules. These compounds can adsorb methane, and the amount of gas adsorption is controllable by the type of pillar ligands.

Rationale Synthese stabiler, kanalartiger Käfige mit Methan‐adsorbierenden Eigenschaften: [{Cu2(pzdc)2(L)}n] (pzdc=Pyrazin‐2,3‐dicarboxylat; L=Säulenligand)

Stabile Kanale mit einstellbaren Eigenschaften werden in [{Cu2(pzdc)2(L)}n]-Koordinationsnetzen des Saulen-Schicht-Typs gebildet (pzdc=Pyrazin-2,3-dicarboxylat; L=Pyrazin, 4,4′-Bipyridin oder N-(4-Pyridyl)isonicotinamid). Durch Wahl der Saulenliganden lassen sich Grose, Form und chemische Umgebung der Kanale systematisch einstellen; die Porositat bleibt auch ohne Gastmolekule erhalten. Die Verbindungen konnen Methan adsorbieren, und die adsorbierte Gasmenge ist durch die Art des Saulenliganden kontrollierbar.

New microporous coordination polymer affording guest-coordination sites at channel walls.

Utilization of a metalloligand, ([Cu(2,4-pydca)2(H2O)].2Et3NH) (1) (2,4-pydca = pyridine-2,4-dicarboxylate), as a building unit provides a novel porous coordination polymer, ([ZnCu(2,4-pydca)2(H2O)3(DMF)].DMF)n (2), in which the Zn(II) ion at the node of the network acts as a linker and the Cu(II) ion in the channel wall is available for guest-coordination.

Novel 2-dimensional coordination polymer constructed from a multi-functional metalloligand

By employing a metalloligand {[Cu(2,4-pydca)2(H2O)]·2Et3NH} (2,4-pydca = 2,4-pyridinedicarboxylate) n(1), a novel 2-D coordination polymer [ZnCu(2,4-pydca)2(H2O)2(MeOH)2]n n(3) was synthesized, in which 1-D linear chains consisting of 1 and Zn(II) ions are linked by weak coordination and hydrogen bonds to form a 2-D network.

New coordination network of [Cd2(bpob)3(NO3)4]n (bpob=1,4-bis(4- pyridoxy)benzene) constructed from two structural isomers of the ligand

Abstract The new cadmium(II) coordination polymer [Cd 2 (bpob) 3 (NO 3 ) 4 ] n (bpob=1,4-bis(4-pyridoxy)benzene) has been synthesized and structurally characterized. Each Cd(II) center, which has “T-shaped” pentagonal pyramidal geometry, is linked by bpob to provide a two-dimensional network. When the cis - and trans -isomers are defined for the bpob ligand, the layer network is made up of the zig-zag chains of [Cd( cis -bpob)] and trans -bpob ligand, which connects these chains. As a result, a sort of brick-wall type two-dimensional structure is constructed.

Synthesis and crystal structure of [Cu(N-salicylidene-3-aminopyridine)(2)](n) constructed from unsymmetric bridging ligand with two dissimilar metal-binding sites

Abstract Synthesis and characterization of novel coordination polymer, [Cu(salapy)2] n (Hsalapy = N-salicylidene-3-aminopyridine), having the 2-D thick layer structure is reported.