Transforming permanently porous but electrically insulating metal–organic frameworks (MOFs) into conducting materials is key to expanding their utility beyond traditional guest storage, separation, and delivery applications the realms of modern electronics energy technologies. To this end, herein, we have converted a highly intrinsically NU-1000 MOF semiconducting NU-1000/gold nanoparticle (AuNP) NU-1000/polydopamine/AuNP composites via MOF- polymer-induced reduction infiltrated Au3+ ions...

To diversify metal-organic framework (MOF) structures beyond traditional Euclidean geometries and to create new charge-delocalization pathways beneficial for electrical conductivity, we constructed a novel double-helical MOF (dhMOF) by introducing butterfly-shaped electron-rich π-extended tetrathiafulvalene ligand equipped with four benzoate groups (ExTTFTB). The face-to-face oriented convex ExTTFTB ligands connected Zn2(COO)4 paddlewheel nodes formed ovoid cavities suitable guest...

Two-dimensional graphitic metal-organic frameworks (GMOF) often display impressive electrical conductivity chiefly due to efficient through-bond in-plane charge transport, however, less out-of-plane conduction across the stacked layers creates large disparity between two orthogonal pathways and dampens their bulk conductivity. To address this issue engineer higher in 2D GMOFs, we have constructed via an elegant bottom-up method first π-intercalated GMOF (iGMOF1) featuring built-in alternate...

Thermodynamically favored simultaneous coordination of Pt(ii) corners with aza- and carboxylate ligands yields tricomponent complexes sophisticated structures functions, which require careful structural characterization to paint accurate depiction their structure-function relationships. Previous reports claimed that heteroleptic cis-(Et3P)2PtII tetrapyridyl porphyrins (M'TPP, M' = Zn or H2) dicarboxylate (XDC) yielded 3D tetragonal prisms containing two horizontal M'TPP faces four vertical...

Charge-transfer (CT) interactions between co-facially aligned π-donor/acceptor (π-D/A) arrays engender unique optical and electronic properties that could benefit (supra)molecular electronics energy technologies. Herein, we demonstrate a tetragonal prismatic metal–organic cage (MOC18+) having two parallel π-donor tetrakis(4-carboxyphenyl)-Zn-porphyrin (ZnTCPP) faces selectively intercalate planar π-acceptor guests, such as hexaazatriphenylene hexacarbonitrile (HATHCN), hexacyanotriphenylene...

[Ruⁱⁱⁱ(phtpy)Cl₃] complex is labile and releases terdentate phtpy ligand in solution leading to the formation of homoleptic [Ruⁱⁱ(phtpy)₂] as main product instead desired [Ru(phtpy)(LL)Cl] upon reaction with bidentated LL ligands.

Collinin is a derivative of coumarin that has shown remarkable potential against cancer, tuberculosis, periodontitis, and other prevalent diseases, usually extracted from plants the Rutaceae family at very low yield. In this work, collinin position-isomer herein called isocollinin were synthesized different scales (from 1 to 50 g precursor) by route consisting two parallel sequential chemical reactions. The isomers characterized 1H NMR, 13C nuclear Overhauser enhancement spectroscopy melting...

A tetrameric metallocycle [Pd(dppp)(DPNDI)]4·8TfO consisting of four dppp-capped Pd(II) corners (dppp = 1,3-bis(diphenylphosphonium)propane) and linear π-acidic N,N′-di(4-pyridyl)-1,4,5,8-naphthalene diimine (DPNDI) ligands has been synthesized, its single-crystal structure elucidated for the first time. The crystal revealed anion−π, lone-pair−π, CH···anion interactions between electron-deficient DPNDI TfO– counterions provided valuable insights into anion recognition metathesis...

Understanding the interactions and solvent effects on distribution of several species in equilibrium how it can influence 1H-NMR properties, spectroscopy (UV-vis absorption), acid-base equilibria be especially challenging. This is case a bis-bidentate bridging ligand bis(2-pyridyl)-benzo-bis(imidazole), where two pyridyl four imidazolyl nitrogen atoms protonated different ways, depending solvent, generating many isomeric/tautomeric species. Herein, we report combined theoretical-experimental...

Novel columnar lanthanide metal–organic frameworks (Ln-MOFs) based on a butterfly-shaped electron-rich π-extended tetrathiafulvalene ligand (ExTTFTB) were synthesized and their electronic properties investigated.

A new electrically conducting 3D metal-organic framework (MOF) with a unique architecture was synthesized using 1,2,4,5-tetrakis-(4-carboxyphenyl)benzene (TCPB) redox-active cis -dipyridyl-tetrathiafulvalene ( Z -DPTTF) ligand. While TCPB formed Zn 2 (COO) 4 secondary building units (SBUs), instead of connecting the -paddlewheel SBUs located in different planes and forming traditional pillared paddlewheel MOF, U-shaped -DPTTF ligands bridged neighboring by same ligand like sine-curve along b...

Abstract Two‐dimensional graphitic metal–organic frameworks (GMOF) often display impressive electrical conductivity chiefly due to efficient through‐bond in‐plane charge transport, however, less out‐of‐plane conduction across the stacked layers creates large disparity between two orthogonal pathways and dampens their bulk conductivity. To address this issue engineer higher in 2D GMOFs, we have constructed via an elegant bottom‐up method first π‐intercalated GMOF (iGMOF1) featuring built‐in...

Los proyectos de APP se presentan en América Latina como un mecanismo para el desarrollo infraestructura y aumento los niveles servicio público a sus usuarios, sin embargo, lograr que las propuestas culminen contratos parece no estar al ritmo necesidades Gobiernos, cada día la presión social por exigir Gobiernos resultados más oportunos es creciente esto puede verse traducido débiles.