A family of lanthanide-zinc coordination polymers with two different types three-dimensional (3-D) frameworks based on 4,5-imidazoledicarboxylic acid and oxalic acid, namely, {[Ln2(H2O)2Zn4(H2O)4(ImDC)4(ox)]·6H2O}n (Ln = La (1), Nd (2), Sm (3), Eu (4), H3ImDC H2ox acid) {[Ln4(H2O)4Zn4(H2O)4(ImDC)4(ox)]·2CH3OH·2H2O}n (4′), Gd (5), Dy (6), Ho (7), Er (8), Yb (9), Lu (10)), were successfully constructed under certain conditions characterized by elemental analysis, IR, thermogravimetric (TG),...

Six new metal–organic frameworks (MOFs), namely, [Pb(H2IDC)2(H2O)]n (1), {[Pb(H2IEDC)2)]·3H2O}n (2), [Ca2(HIDC)2(H2O)]n (3), {[Ca2(IEDC)2(H2O)2]·H2O}n(4), {[Cd(HIDC)(H2O)]n (5), and {[Cd2(HIEDC)2·3H2O}n (6) (H3IDC = 4,5-imidazoledicarboxylic acid, H3IEDC 2-ethyl-1H-imidazole-4,5-dicarboxylic acid) were hydrothermally synthesized characterized. Single-crystal X-ray diffraction shows the ligand H3IDC is partially deprotonated with H2IDC– HIDC2– forms in three corresponding compounds 1, 3, 5,...

Self-assembly of the symmetrical tetradentate N2O2 donor Schiff base ligand, that is, bis(salicylidene)trimethylenediamine (sy-H2L3), with different zinc salts has led to six anion-dependent complexes, namely, [Zn3(sy-L3)2(μ2-Cl)Cl(C2H5OH)]·C2H5OH (1), Zn[Zn(sy-L3)(μ2-NO2)(C2H5OH)]2·2H2O (2), Zn[Zn(sy-L3)(μ2-CH3COO)]2 (3), Zn(DMF)2[Zn(sy-L3)(H2O)(SCN)]2 (4), Zn[Zn(sy-L3)(μ2-HCOO)(DMF)]2·H2O (5) and Zn[Zn(sy-L3)(μ2-HCOO)]2 (6), respectively. Six compounds were characterized by elemental...

Two novel cadmium–organic frameworks containing achiral helical nanotubular channels, [Cd(HImDC)(S)]n (S = Im(1) and Py(2)), have been synthesized characterized using single crystal X-ray diffraction, in which 1 converts to 2 upon refluxing pyridine solution with noticeable porosity hydrogen uptake at medium pressure.

A new helical carbon tube material has been prepared from epitaxial Cu-MOF coating on textile by calcination treatment.

Self-assemblies of two unsymmetrical tridentate N2O/N2S donor Schiff base ligands, that is, 2-((2-(dimethylamino)ethylimino)methyl)phenol (HL1) and methyl-2-pyridylmethylidenehy-drazinecarbodithioate (HL2), with different cadmium salts have led to 11 anion-controlled complexes, namely, [Cd(Ln)2] [n = 1 for n 2 2], [Cd(L1)(HL1)](ClO4) (3), [Cd(HL2)(L2)](ClO4)(H2O) (4), [Cd(L2)Cl2] (5), [Cd(L1)Cl]2 (6), [Cd(L1)(NO3)]2 (7), [Cd(L2)(NO3)(CH3OH)]2 (8), [Cd(L2)(NO3)(H2O)]2 (8a), [Cd2(L1)2(SCN)2]n...

The reversible photochromic molecule azobenzene was encapsulated into pores of metal organic frameworks (MOFs) using a modified liquid-phase epitaxial layer-by-layer method successfully. obtained thin film not only has an oriented, homogeneous with effective guest encapsulation but also isomerization between trans- and cis-azobenzene in MOF under UV visible light irradiation. Furthermore, the photoluminescent property studied for loaded HKUST-1 different temperature. This facile preparation...

By mixing amino acids and tetrazolate ligands, a series of homochiral zeolitic metal–organic frameworks (ZMOFs) with ABW topology have been synthesized, which show permanent microporosity potential enantioselective recognition ability.

Abstract Metal–organic frameworks, MOFs, are a class of crystalline porous metal–organic hybrid materials which have originally been developed for applications in gas storage and separation. Here, we demonstrate that due to the enormous chemical flexibility these molecular materials, they also provide an excellent basis development photoresist materials. In particular, used epitaxial process with automated systems grow either homogeneous or patterned SURMOFs (surface‐anchored MOFs) type [Zn...

Through a two-step synthetic strategy, four d10 Schiff-base complexes CdZn(DMF)(La)(NO3)2 (1), Cd[Zn(La)Cl]2·H2O (2) and [Cd(DMF)LbS]2·2H2O (S = NO3, 3; Cl, 4) (H2La N,N′-bis(3-methoxy-salicylidene)phenylene-1,2-diamine, HLb 2-(1H-benzoimidazol-2-yl)-6-methoxy-phenol) have been successfully constructed by the solvothermal reaction of Cd(NO3)2/CdCl2 with Zn(La)/Zn(Lb)2, characterized EA, IR, FAB-MS TG, in which 1, 2 4 were confirmed single crystal X-ray diffraction. The results reveal that 1...

Three pH/temperature-dependent 2D MOFs containing 1D nanotubular meso-helical chains were firstly synthesized from multidentate 2,4ˈ-H2bpdc. Crystal structure analysis shows that 2 and 3 are monochiral the resultant crystals not racemic as evidenced by observation of strong signals in vibrational circular dichroism (VCD) (CD) spectra.

Abstract The reaction of pyridine‐2,3‐dicarboxylic acid (2,3‐pydcH 2 ) with CuI and Ln O 3 under hydrothermal conditions generated a series new one‐, two‐, three‐dimensional coordination polymers, namely, {[Cu (2,3‐pydc) 6 (H O) 12 ] · 12H O} n [Ln = La( 1 ), Nd( )], 8 6H Sm( Gd( 4 10 10H Tb( 5 Ho( Er( 7 Yb( Lu( 9 )]. results show that compounds (type I structure) are 1‐D Cu‐4f rhombic lattice chains formed through assembly two building block units Cu (pydc) Ln(H . Compounds – II 2‐D layers...

Several low-dimensional Ni/Ni−Cd complexes containing the N2O2 donor tetradentate symmetrical Schiff base ligand bis(acetylacetone)ethylene-diamine (sy-H2L2), namely, [Ni(sy-L2)]2·HLa·ClO4 (2), (HLa)2·(ClO4)·(NO3) (3), [Ni(sy-L2)X]2](4,4′-bipy) (where La = 5,7-dimethyl-3,6-dihydro-2H-1,4-diazepine, X ClO4 (4), NO3 (5), [Ni(sy-L2)Cd(SCN)2]n (6) and [Ni(sy-L2)·Cd(N3)2]n (7), have been synthesized from [Ni(sy-L2)]2·H2O (1). Complex 2 is a three-component discrete assembly generated (HLa)+...

A robust porous pillar-chained 3-D Cd-framework, {[Cd2(μ3-OH)2(cpt)2]·(H2O)}n (1) (Hcpt = 4-(4-carboxyphenyl)-1,2,4-triazole), containing 1-D square nanotubular channels with impressive selective sorption for CO2 over N2/H2 and interesting guest-driven tunable luminescence is reported.

The development of new non-platinum catalysts for alcohol electrooxidation is utmost importance. In this work, a bimetallic Pd-Cu loaded porous carbon material was first synthesized from Cu-based metal-organic framework (MOF). Cu pre-synthesized through calcinating the MOF under N2 atmosphere. After loading Pd onto precursor and heating, (Pd-Cu/C) obtained electrooxidation. Electrooxidation experiments revealed that bimetal assisted steady state electrolysis oxidation in alkaline media....

The use of 2-naphthalenesulfonate (NAS) ligand in lanthanide chemistry afforded a family isostructural mononuclear complexes with the formula [Ln(NAS)2(H2O)6](NAS)·3H2O [Ln = Tb (1), Dy (2), Er (3), Yb (4)]. Crystallographic studies determined square antiprismatic geometry (D4d) for Ln centre and crystallization an unprecedented chiral space group. latter was further confirmed by observation Cotton effects single crystal circular dichroism (CD) spectra. Static dynamic magnetic measurements...

The realization of encapsulating a functional guest into porous metal–organic frameworks-based thin films for optimizing and improving electrocatalysis remains significant challenge. In this work, an Fe bis(salicylaldehyde)ethylenediimine (Salen) compound Fe(Salen) encapsulated cobalt-porphyrin framework PIZA-1 (Fe(Salen)@PIZA-1) film with different surface compositions was successfully developed by using modified epitaxial layer-by-layer approach. After calcination, composite...