By introduction of 1,4-benzenedicarboxylic acid as a second organic ligand, two new divalent metal(II) phosphonates with a 3D framework structure, namely, [Zn(HL1)(bdc)(0.5)] (1) and [Cd(1.5)(HL2)(bdc)(0.5)] (2) (H(2)L1 = H(2)O(3)PCH(NH(2))C(6)H(5), H(3)L2 = H(2)O(3)PCH(2)-NC(5)H(9)-COOH, H(2)bdc = HOOCC(6)H(4)COOH), have been synthesized under hydrothermal conditions. The two compounds show th...

A series of high-quality M2(BDC)2(DABCO) metal-organic frameworks (abbreviated as M-DABCO; M=Zn, Co, Ni, Cu; BDC=1,4-benzene dicarboxylate; DABCO=1,4-diazabicyclo[2.2.2]octane), were synthesized by using a solvothermal (SV) method, and their catalytic activity for the cycloaddition of CO2 to epoxides in the absence of a co-catalyst or solvent was demonstrated. Of these metal-organic frameworks ...

Five new metal-organic coordination polymers based on the mixed ligands of a semi-rigid bis-pyridyl-bis-amide N,N'-bis(3-pyridinecarboxamide)-1,2-cyclohexane (3-bpah) and 1,4-benzenedicarboxylic acid (1,4-H2BDC), namely [Co(3-bpah)(1,4-BDC)(H2O)3] (1), [Ni(3-bpah)(1,4-BDC)(H2O)3] (2), [Cu(3-bpah)(1,4-BDC)] (3), [Zn(3-bpah)(1,4-BDC)]·H2O (4) and [Cd(3-bpah)(1,4-BDC)(H2O)] (5), have been hydrothe...

Abstract This study focuses on pre-synthetic functionalized MOF material normally known as pillared layer MOFs. An additional component DABCO (1,4-diazabicyclo[2.2.2] octane) is added to the MOFs which works a pillar produce 3D structured Zn-BDC-DABCO and Co-BDC-DABCO were studied for their performance in CO 2 capture application. The addition of turns 2D-layered metal-BDC lattice into structur...

Metal–organic frameworks (MOFs) stand as one of the most promising materials for development advanced technologies owing to their unique combination properties. The conventional synthesis MOFs involves a direct reaction organic linkers and metal salts; however, postsynthetic modification is sophisticated route produce new or confer novel properties that cannot be attained through traditional me...

A series of azobenzene-loaded metal-organic frameworks were synthesized with the general formula M2(BDC)2(DABCO)(AB)x (M = Zn, Co, Ni, and Cu; BDC 1,4-benzenedicarboxylate; DABCO 1,4-diazabicyclo[2.2.2]octane; AB azobenzene), herein named M-1?ABx. Upon occlusion AB, each framework undergoes guest-induced breathing, whereby pores contract around molecules forming a narrow-pore (np) framework. Th...

The security of future energy, hydrogen, is subject to designing high-performance, stable, and low-cost electrocatalysts for hydrogen oxygen evolution reactions (HERs OERs), the realization efficient overall water splitting. Two-dimensional (2D) metal–organic frameworks (MOFs) introduce a large family materials with versatile chemical structural features variety applications, such as supercapac...

The synthesis and physical properties of dioxole functionalized metal-organic frameworks (MOFs) are reported. Combination of benzo[d][1,3]dioxole-4,7-dicarboxylic acid (dioxole-BDC) and Zn(II) under solvothermal conditions yields either an isoreticular metal-organic framework analog (IRMOF-1-dioxole) or a new MOF material (MOF-1-dioxole). With the addition of a co-ligand, namely 4,4'-bipyridine...

A new zinc coordination polymer with rigid benzene-1,4-di-carboxyl-ate (bdc) and flexible 1,6-bis-(1,2,4-triazol-1-yl)hexane (btrh), namely poly[[(μ2-benzene-1,4-di-carboxyl-ato)[μ2-1,6-bis-(1,2,4-triazol-1-yl)hexa-ne]zinc] di-methyl-form-amide monosolvate], [Zn(C8H4O4)(C10H16N6)]·C3H7NO, was synthesized. According to the single-crystal XRD analysis, the product crystallizes in the P-1 space gr...

Solvothermal reactions of Cd(OAc)2/Zn(OAc)2 with a new ligand, (pyridin-3-yl)methyl 4-(2-(4-((pyridin-3-yl)methoxy)phenyl)diazenyl)benzoate (L1), under different templates via an in situ ligand transformation reaction produced five coordination polymers, [CdL2(H2O)]n (1), [Cd1.5L3]n (2), [Cd2L4]n (3), [(ZnL2)·H2O]n (4) and {[Zn(1,3-BDC)(L1)]·MeCN·0.5H2O}n (5), where HL = 4-(2-(4-((pyridin-3-yl)...