Six metal-organic architectures from a 5-methoxyisophthalate linker: assembly, structural variety and catalytic features

A methoxy-functionalized isophthalic acid, 5-methoxy isophthalic acid (H2mia), was used a versatile linker for assembling six new metal(ii) compounds under hydrothermal conditions. The obtained products were [Cu2(μ2-mia)2(phen)2(H2O)2]·2H2O (1), [Mn(μ3-mia)(phen)]n (2), [Co(μ2-mia)(2,2'-bipy)(H2O)]n·nH2O (3), [Co(μ3-mia)(μ2-4,4'-bipy)]n·nH2O (4), [Co(μ3-mia)(py)2]n (5), and [Cd(μ2-mia)(py)(H2O)2]n·nH2O (6), where phen(1,10-phenanthroline), 2,2'-bipy(2,2'-bipyridine), 4,4'-bipy(4,4'-bipyridine) or py(pyridine) were incorporated as auxiliary ligands. The crystal structures of 1-6 range from 0D (1) and 1D (2, 3, 5, 6) CPs to a 2D network (4) with a variety of topological types. The catalytic behavior of 1-6 was studied in the cyanosilylation reaction between trimethylsilyl cyanide and aldehydes, resulting in up to 99% yields of products under optimized conditions. Various reaction parameters as well as catalyst recycling and substrate scope were investigated. This study widens the use of H2mia as a versatile dicarboxylate linker for assembling a diversity of functional metal-organic architectures with remarkable structural features and catalytic properties.

Synthesis, Structure and Highly Selective C3H8/CH4 and C2H6/CH4 Adsorptions of a (4,8)-c Ternary flu-Metal-organic Framework based upon both [Sc4O2(COO)8] and [Cu4OCl6] Clusters

A new ternary flu topological metal-organic framework based upon the torsional cubic 8-connected [Sc4O2(COO)8] cluster and the tetrahedral 4-connected [Cu4OCl6] cluster, namely, [Sc4O2(Cu4Cl6O)2(L)8•5H2O]•xGuest (SNNU-Bai69; SNNU-Bai = Shaanxi Normal University, Bai’s...

Zinc-based CPs for effective detection of Fe3+ and Cr2O72− ions

Four new zinc-based CPs for the sensitive and selective detection of Fe³⁺ and Cr₂O₇²⁻ ions.

Crystal structure of catena-poly[triaqua-(μ2-5-methoxy-isophthalato-κ2O:O′)copper(II)], C9H12CuO8

[Cu(C9H6O5)(H2O)3], monoclinic, C2/c (no. 15), a = 21.678(13) Å, b = 9.071(6) Å, c = 13.786(9) Å, β = 122.738(7)°, V = 2280(2) Å3, Z = 8, Rgt(F) = 0.0613, wRref(F2) = 0.1682, T = 296(2) K.

Crystal structure of a diaqua-bis(3,5-di(1H-imidazol-1-yl)pyridine-κN)-bis(2-(4-carboxy-phenyl)acetato-κO]manganese(II), C40H36MnN10O10

C40H36MnN10O10, monoclinic, P21/c (no. 14), a = 21.8966(12) Å, b = 7.2586(4) Å, c = 12.2346(6) Å, β = 98.232(1)°, V = 1924.52(18) Å3, Z = 2, R gt(F) = 0.0327, wR ref(F 2) = 0.0847, T = 296(2) K.

A series of six-membered lanthanide rings based on 2,2-bis(hydroxymethyl)-2,2′,2″-nitrilotriethanol: synthesis, crystal structures and magnetic properties

A series of six-membered ring cyclic lanthanide(iii) clusters have been constructed by utilizing the pentol ligand.

Effects of hydroxy substituents on Cu(ii) coordination polymers based on 5-hydroxyisophthalate derivatives and 1,4-bis(2-methylimidazol-1-yl)benzene

Hydroxyl substituents of 5-hydroxyisophthalate derivatives have imposed important effects on the structures and properties of Cu(ii) coordination polymers.

DPDS–DPS in situ transformation at room temperature via a 1,2-nucleophilic addition mechanism

A cleavage–reorganization reaction at room temperature has been detected in three metal organic coordination compounds synthesized from a DPDS [di(4-pyridyl)disulphide] ligand: Mn(NCS)₂(DPS)₄ (1), [Fe(NCS)₂(DPS)₂]·2H₂O (2) and Zn(NCO)₂(DPS) (3), [DPS = di(4-pyridyl)sulphide].

Different interpenetrated coordination polymers based on flexible dicarboxylate ligands: topological diversity and magnetism

This work evidently indicates that the effect of the secondary ligands, molar ratios and geometric preferences of the metal centers are critical on the resulting entangled motifs.