Abstract The sequestration of luminophores within supramolecular polyhedral compartments a crystalline zeolite‐like hydrogen‐bonded framework illustrates unique approach to limiting the self‐quenching ordinarily exhibited at high concentrations achievable in this framework. A range differently sized luminescent guests, namely coumarin 1, 4, fluorescein, [Ru(bpy) 3 ]Cl 2 , and rhodamine B, can be encapsulated amounts up one molecule per cage, equivalent concentration 0.175 m which is...

A new inclusion compound consisting of a guanidinium 1,3,5-tri(4-sulfophenyl)benzene (G3TSPHB) host framework containing isophorone guests that surround isolated and seemingly inaccessible pockets was amenable to guest exchange with hexafluorobenzene (HFB) through single crystal–single crystal transformation (SCSCT). Single-crystal X-ray diffraction intermediate states, from the parent G3TSPHB·(isophorone)3.7·(methanol)5.4 final state G3TSPHB·(isophorone)3.1·(HFB)2·(methanol)2, indicated...

An isomorphous series of 10 microporous copper-based metal-organic frameworks (MOFs) with the general formulas (∞)(3)[{Cu(3)(μ(3)-OH)(X)}(4){Cu(2)(H(2)O)(2)}(3)(H-R-trz-ia)(12)] (R = H, CH(3), Ph; X(2-) SO(4)(2-), SeO(4)(2-), 2 NO(3)(2-) (1-8)) and (∞)(3)[{Cu(3)(μ(3)-OH)(X)}(8){Cu(2)(H(2)O)(2)}(6)(H-3py-trz-ia)(24)Cu(6)]X(3) 3py; SeO(4)(2-) (9, 10)) is presented together closely related compounds (∞)(3)[Cu(6)(μ(4)-O)(μ(3)-OH)(2)(H-Metrz-ia)(4)][Cu(H(2)O)(6)](NO(3))(2)·10H(2)O (11)...

An isostructural series of 15 structurally flexible microporous silver metal-organic frameworks (MOFs) is presented. The compounds with a dinuclear core as secondary building unit (Ag2N4) can be obtained under solvothermal conditions from substituted triazolyl benzoate linkers and AgNO3 or Ag2SO4; they exhibit 2-fold network interpenetration lvt topology. Besides the crystal structures, calculated pore size distributions MOFs are reported. Simultaneous thermal analyses confirm stability up...

Isoreticular chemistry, in which the organic or inorganic moieties of reticular materials can be replaced without destroying their underlying nets, is a key concept for synthesizing new porous molecular and tuning functionalization pores. Here, we report that rational cleavage covalent bonds metal-organic framework (MOF) trigger isoreticular contraction, need any additional linkers. We began by two novel MOFs based on MIL-142 family, (In)BCN-20B (Sc)BCN-20C, include cleavable as well...

Abstract A macrocyclic ligand (H 2 L) containing two o,o′ ‐bis(iminomethyl)phenol and calix[4]arene head units has been synthesized its coordination chemistry towards divalent Ni Zn investigated. The new macrocycle forms complexes of composition [ML] (M=Zn, M=Ni) [ZnL(py) ], which were characterized by elemental analysis; IR, UV/Vis, NMR spectroscopy; electrospray ionization mass spectrometry (ESI‐MS); X‐ray crystallography (for ] [NiL]). H L allows the sensitive optical detection 2+ among a...

Abstract An efficient system for the catalytic redox isomerization of allylic alcohol 1‐octen‐3‐ol to 3‐octanone is presented. The homogeneous ruthenium(II) catalyst contains a monodentate phosphane ligand with ferrocene moiety in backbone and provides quantitative yields. activity increased by nearly 90 % respect corresponding triphenyl complex. By grafting at surface dendrimer, further increased. introducing different spacers between phosphorus, influence on electronic properties complexes...

A bitopic ligand, 4-(3,5-dimethylpyrazol-4-yl)-1,2,4-triazole (Hpz-tr) (1), containing two different heterocyclic moieties was employed for the design of copper(II)–molybdate solids under hydrothermal conditions. In multicomponent CuII/Hpz-tr/MoVI system, a diverse set coordination hybrids, [Cu(Hpz-tr)2SO4]·3H2O (2), [Cu(Hpz-tr)Mo3O10] (3), [Cu4(OH)4(Hpz-tr)4Mo8O26]·6H2O (4), [Cu(Hpz-tr)2Mo4O13] (5), and [Mo2O6(Hpz-tr)]·H2O (6), prepared characterized. systematic investigation these systems...

Abstract Spectroscopic techniques are a powerful tool for structure determination, especially if single‐crystal material is unavailable. 113 Cd solid‐state NMR easy to measure and highly sensitive probe because the coordination number, nature of coordinating groups, geometry around metal ion reflected by isotropic chemical shift chemical‐shift anisotropy. Here, detailed investigation series 27 cadmium polymers reported. The results obtained demonstrate that very characterize environment,...

We present a novel strategy to assemble diverse metal ions and organic linkers into metal–organic polyhedra (MOPs). It involves use of pre-assembled complex parent MOP replicate this cage with multicomponent character.

Three metal–organic frameworks (MOFs) based on zinc(II) (1), cadmium(II) (2) or lead(II) (3) and the functionalised biphenyl linker biphenyl-2,2′-dimethoxy-4,4′-dicarboxylate, [4,4′-(CO2)2-2,2′-(OMe)2-1,1′-(C6H3)2] (L), were synthesised. Compounds 1 3 exhibit different three-dimensional networks with Zn4O(O2C)6(H2O) unit as secondary building (SBU) in Zn-based MOF [{(Zn4O)(L)3(H2O)}·4.5DMF]n (1) Pb6O2(O2C)4 clusters SBU Pb-based [{(Pb6O2)L4}·2EtOH]n (3), shown by X-ray analysis. The Cd-based...

Abstract The heterobimetallic three‐dimensional metal–organic framework {[Na 2 Pb ( L ) 3 (H O)(dmf) 4 ] · 9dmf} n 1 ), which contains {Pb Na(η ‐O CR) 6 } moieties as secondary building units, was obtained by solvothermal reaction of Pb(NO and S )‐5,5′‐bis(4‐carboxyphenyl)‐2,2′‐bis(diphenylphosphinoyl)‐1,1′‐binaphthyl in the presence NaOH dimethylformamide (dmf). In solid state, forms a network with bcu topology. Ligand‐based violet‐blue luminescence is observed for compound assigned to →S 0...

Rational combination of pyridazine, hydroxo and carboxylate bridging ligands led to the assembly three types mixed-ligand polynuclear Cu(II) clusters (A: [Cu2(μ-OH)(μ-pdz)(μ-COO)]; B: [Cu4(μ3-OH)2(μ-pdz)2]; C: [Cu5(μ-OH)2(μ-pdz)4(μ-COO)2(μ-H2O)2]) their integration into 3D framework structures. Mixed-ligand complexes [Cu2(μ-OH){TMA}(L)(H2O)] (1), [Cu4(μ3-OH)2{ATC}2(L)2(H2O)2]·H2O (2) [Cu4(μ3-OH)2{TDC}3(L)2(H2O)2]·7H2O (3) (L = 1,3-bis(pyridazin-4-yl)adamantane; TMA(3-)...

New fluorinated hybrid solids [Mo2F2O5(tr2pr)] (1), [Co3(tr2pr)2(MoO4)2F2]·7H2O (2), and [Co3(H2O)2(tr2pr)3(Mo8O26F2)]·3H2O (3) (tr2pr = 1,3-bis(1,2,4-triazol-4-yl)propane) were prepared from the reaction systems consisting of Co(OAc)2/CoF2 MoO3/(NH4)6Mo7O24, as Co(II) Mo(VI) sources, in water (2) or aqueous HF (1, 3) employing mild hydrothermal conditions. The tr2pr ligand serves a conformationally flexible tetradentate donor. In complex 1, octahedrally coordinated Mo atoms are linked...

The halide binding properties of the cavitand [Ni2(L(Me2H4))](2+) (4) are reported. Cavitand 4 exhibits a chelating N3Ni(μ-S)2NiN3 moiety with two square-pyramidal Ni(II)N3S2 units situated in an anion pocket ∼4 Å diameter formed by organic backbone (L(Me2H4))(2-) macrocycle. receptor reacts fluoride, chloride (in MeCN/MeOH), and bromide MeCN) ions to afford isostructural series halogenido-bridged complexes [Ni2(L(Me2H4))(μ-Hal)](+) (Hal = F(-) (5), Cl(-) (6), Br(-) (7)) featuring...

Abstract The sequestration of luminophores within supramolecular polyhedral compartments a crystalline zeolite‐like hydrogen‐bonded framework illustrates unique approach to limiting the self‐quenching ordinarily exhibited at high concentrations achievable in this framework. A range differently sized luminescent guests, namely coumarin 1, 4, fluorescein, [Ru(bpy) 3 ]Cl 2 , and rhodamine B, can be encapsulated amounts up one molecule per cage, equivalent concentration 0.175 m which is...

One-dimensional networks of the well-known photosensitizer [Ru(bpy)₃]²⁺ are encapsulated in an unusual hydrogen-bonded crystalline host framework.

Abstract The synthesis of air‐sensitive 2, 6‐diformyl‐4‐ tert ‐butylthiophenol dioxime H 3 L3 was achieved by a Pd‐mediated S–C cleavage the corresponding S‐ ‐butyl protected thioether. novel ligand forms dinuclear, neutral Pd II 2 complex, which is stabilized two N ··· HO hydrogen bonds to give pseudo‐macrocyclic structure. crystal structure complex an oxidized isothiazole derivative also reported.

Abstract The preparation, characterization and the molecular structure of a dinuclear uranyl complex [(UO 2 ) L(OCMe ] supported by bis-salophen ligand N , ′, ″, ′″-tetra-(3,5-di- tert -butylsalicylidene)-1,2,4,5-phenylenetetraamine (L 4– is described. was prepared reaction nitrate with neutral, protonated form (H 4 L) in acetone. From saturated acetone solution ]·1.5(OCMe crystallizes triclinically, space group P 1̅ = 1522.7(2), b 1751.4(2), c 1815.4(2) Å, α 109.16(1), β 99.29(1), γ...