A novel one-dimensional metal–organic framework with a μ-cyanido-argentate group:catena-poly[[(5,5′-dimethyl-2,2′-bipyridyl-κ2N,N′)silver(I)]-μ-cyanido-κ2N:C]

The design and synthesis of metal coordination and supramolecular frameworks containingN-donor ligands and dicyanidoargentate units is of interest due to their potential applications in the fields of molecular magnetism, catalysis, nonlinear optics and luminescence. In the design and synthesis of extended frameworks, supramolecular interactions, such as hydrogen bonding, π–π stacking and van der Waals interactions, have been exploited for molecular recognition associated with biological activity and for the engineering of molecular solids.The title compound, [Ag(CN)(C12H12N2)]n, crystallizes with the AgIcation on a twofold axis, half a cyanide ligand disordered about a centre of inversion and half a twofold-symmetric 5,5′-dimethyl-2,2′-bipyridine (5,5′-dmbpy) ligand in the asymmetric unit. Each AgIcation exhibits a distorted tetrahedral geometry; the coordination environment comprises one C(N) atom and one N(C) atom from substitutionally disordered cyanide bridging ligands, and two N atoms from a bidentate chelating 5,5′-dmbpy ligand. The cyanide ligand links adjacent AgIcations to generate a one-dimensional zigzag chain. These chains are linked togetherviaweak nonclassical intermolecular interactions, generating a two-dimensional supramolecular network.

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A one-dimensional HgIIcoordination polymer based on bis(pyridin-3-ylmethyl)sulfane

Acta Crystallographica Section E Crystallographic Communications ◽

10.1107/s205698901701619x ◽

2017 ◽

Vol 73 (12) ◽

pp. 1871-1874

Author(s):

Suk-Hee Moon ◽

Youngjin Kang ◽

Ki-Min Park

Keyword(s):

Hydrogen Bonds ◽

Central Atom ◽

Three Dimensional ◽

Supramolecular Network ◽

Zigzag Chain ◽

Asymmetric Unit ◽

Tetrahedral Geometry ◽

One Dimensional ◽

Centroid Distance ◽

The One

The reaction of mercury(II) chloride with bis(pyridin-3-ylmethyl)sulfane (L, C12H12N2S) in methanol afforded the title crystalline coordination polymercatena-poly[[dichloridomercury(II)]-μ-bis(pyridin-3-ylmethyl)sulfane-κ2N:N′], [HgCl2L]n. The asymmetric unit consists of one HgIIcation, oneLligand and two chloride anions. Each HgIIion is coordinated by two pyridine N atoms from separateLligands and two chloride anions. The metal adopts a highly distorted tetrahedral geometry, with bond angles about the central atom in the range 97.69 (12)–153.86 (7)°. EachLligand bridges two HgIIions, forming an infinite –(Hg–L)n– zigzag chain along thebaxis, with an Hg...Hg separation of 10.3997 (8) Å. In the crystal, adjacent chains are connected by intermolecular C—H...Cl hydrogen bonds, together with Hg—Cl...π interactions [chloride-to-centroid distance = 3.902 (3) Å], that form between a chloride anion and the one of the pyridine rings ofL, generating a two-dimensional layer extending parallel to (101). These layers are further linked by intermolecular C—H...π hydrogen bonds, forming a three-dimensional supramolecular network.

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An organic–inorganic hybrid compound containing imidazolium cations and a one-dimensional lithium hexacyanidocobaltate-based anionic framework

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229614011541 ◽

2014 ◽

Vol 70 (6) ◽

pp. 603-605 ◽

Cited By ~ 6

Author(s):

Xiu-Dan Shao ◽

Chun-Hua Yu

Keyword(s):

Three Dimensional ◽

Chain Structure ◽

Supramolecular Network ◽

Monoclinic Space Group ◽

Zigzag Chain ◽

Imidazolium Chloride ◽

Hybrid Compound ◽

Inorganic Hybrid ◽

One Dimensional ◽

Imidazolium Cations

An organic–inorganic hybrid compound,catena-poly[bis(3H-imidazol-1-ium) [[tetracyanido-κ4C-cobalt(III)]-μ-cyanido-κ2C:N-[diaqualithium(I)]-μ-cyanido-κ2N:C]], {(C3H5N2)2[CoLi(CN)6(H2O)2]}n, was synthesized by the reaction of Li3[Co(CN)6] with imidazolium chloride in aqueous solution. The compound crystallizes in the monoclinic space groupC2/c(data collected at 273 K). In the crystal structure, neighbouring [Co(CN)6]3−anionic units are linked by Li+cations through the cyanide groups in atransmode, forming a one-dimensional zigzag chain structure extending along thecaxis. A three-dimensional supramolecular network is formed through hydrogen-bonding interactions and is further stabilized by weak CN...π interactions between the cyanide groups and the imidazolium cations.

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A novel one-dimensional silver cylinder stabilized by mixed 2-mercaptobenzoic acid and ethylenediamine ligands

Acta Crystallographica Section C Crystal Structure Communications ◽

10.1107/s0108270112031125 ◽

2012 ◽

Vol 68 (8) ◽

pp. m229-m232

Author(s):

Di Sun ◽

Zhi-Hao Yan

Keyword(s):

Three Dimensional ◽

Van Der Waals Interactions ◽

Two Dimensional ◽

Binding Modes ◽

Supramolecular Framework ◽

One Pot ◽

Tetrahedral Geometry ◽

Coordination Environment ◽

One Dimensional ◽

The One

A novel infinite one-dimensional silver cylinder, namely poly[μ-ethylenediamine-μ5-(2-sulfanidylbenzoato)-μ4-(2-sulfanidylbenzoato)-tetrasilver(I)], [Ag4(C7H4O2S)2(C2H8N2)]n, has been synthesized by one-pot reaction of equivalent molar silver nitrate and 2-mercaptobenzoic acid (H2mba) in the presence of ethylenediamine (eda). One Ag atom is located in an AgS2NO four-coordinated tetrahedral geometry, two other Ag atoms are in an AgS2O three-coordinated T-shaped geometry and the fourth Ag atom is in an AgSNO coordination environment. The two mba ligands show two different binding modes. The μ2-N:N′-eda ligand, acting as a bridge, combines with mba ligands to extend the AgIions into a one-dimensional silver cylinder incorporating abundant Ag...Ag interactions ranging from 2.9298 (11) to 3.2165 (13) Å. Interchain N—H...O hydrogen bonds extend the one-dimensional cylinder into an undulating two-dimensional sheet, which is further packed into a three-dimensional supramolecular framework by van der Waals interactions; no π–π interactions were observed in the crystal structure.

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Mechanized azobenzene-functionalized zirconium metal-organic framework for on-command cargo release

Science Advances ◽

10.1126/sciadv.1600480 ◽

2016 ◽

Vol 2 (8) ◽

pp. e1600480 ◽

Cited By ~ 112

Author(s):

Xiangshi Meng ◽

Bo Gui ◽

Daqiang Yuan ◽

Matthias Zeller ◽

Cheng Wang

Keyword(s):

Metal Organic Framework ◽

Simple Approach ◽

Stimuli Responsive ◽

Smart System ◽

Design And Synthesis ◽

Potential Applications ◽

Metal Organic ◽

Zirconium Metal ◽

Premature Release ◽

Azobenzene Groups

Stimuli-responsive metal-organic frameworks (MOFs) have gained increasing attention recently for their potential applications in many areas. We report the design and synthesis of a water-stable zirconium MOF (Zr-MOF) that bears photoresponsive azobenzene groups. This particular MOF can be used as a reservoir for storage of cargo in water, and the cargo-loaded MOF can be further capped to construct a mechanized MOF through the binding of β-cyclodextrin with the azobenzene stalks on the MOF surface. The resulting mechanized MOF has shown on-command cargo release triggered by ultraviolet irradiation or addition of competitive agents without premature release. This study represents a simple approach to the construction of stimuli-responsive mechanized MOFs, and considering mechanized UiO-68-azo made from biocompatible components, this smart system may provide a unique MOF platform for on-command drug delivery in the future.

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A copper(I) coordination polymer incorporation the corrosion inhibitor 1H-benzotriazole: poly[μ3-benzotriazolato-κ3N1:N2:N3-copper(I)]

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229614010390 ◽

2014 ◽

Vol 70 (6) ◽

pp. 599-602 ◽

Cited By ~ 7

Author(s):

Jian-Jun Liu ◽

Zuo-Yin Li ◽

Xiong Yuan ◽

Yao Wang ◽

Chang-Cang Huang

Keyword(s):

Aqueous Ammonia ◽

Three Dimensional ◽

Van Der Waals Interactions ◽

Asymmetric Unit ◽

Secondary Building Unit ◽

Hydrothermal Conditions ◽

Tetrahedral Geometry ◽

One Dimensional ◽

The Third ◽

Bonding And Bridging

The title complex, [Cu(C6H4N3)]n, was synthesized by the reaction of cupric nitrate, 1H-benzotriazole (BTAH) and aqueous ammonia under hydrothermal conditions. The asymmetric unit contains three crystallographically independent CuIcations and two 1H-benzotriazolate ligands. Two of the CuIcations, one with a linear two-coordinated geometry and one with a four-coordinated tetrahedral geometry, are located on sites with crystallographically imposed twofold symmetry. The third CuIcation, with a planar three-coordinated geometry, is on a general position. Two CuIcations are doubly bridged by two BTA−ligands to afford a noncentrosymmetric planar [Cu2(BTA)2] subunit, and two [Cu2(BTA)2] subunits are arranged in an antiparallel manner to form a centrosymmetric [Cu2(BTA)2]2secondary building unit (SBU). The SBUs are connected in a crosswise mannerviathe sharing of four-coordinated CuIcations, Cu—N bonding and bridging by two-coordinate CuIcations, resulting in a one-dimensional chain along thecaxis. These one-dimensional chains are further linked by C—H...π and weak van der Waals interactions to form a three-dimensional supramolecular architecture.

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Synthesis, structural characterization and thermal properties of a new copper(II) one-dimensional coordination polymer based on bridgingN,N′-bis(2-hydroxybenzylidene)-2,2-dimethylpropane-1,3-diamine and dicyanamide ligands

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229616000978 ◽

2016 ◽

Vol 72 (2) ◽

pp. 149-154 ◽

Cited By ~ 11

Author(s):

Cigdem Hopa ◽

Ismail Cokay

Keyword(s):

Coordination Polymer ◽

Functional Materials ◽

Asymmetric Unit ◽

Single Crystal Diffraction ◽

One Dimensional ◽

X Ray ◽

Design And Synthesis ◽

Polymeric Chains ◽

Potential Applications ◽

Polymeric Coordination

The design and synthesis of polymeric coordination compounds of 3dtransition metals are of great interest in the search for functional materials. The coordination chemistry of the copper(II) ion is of interest currently due to potential applications in the areas of molecular biology and magnetochemistry. A novel coordination polymer of CuIIwith bridgingN,N′-bis(2-hydroxyphenyl)-2,2-dimethylpropane-1,3-diamine (H2L-DM) and dicyanamide (dca) ligands,catena-poly[[[μ2-2,2-dimethyl-N,N′-bis(2-oxidobenzylidene)propane-1,3-diamine-1:2κ6O,N,N′,O′:O,O′]dicopper(II)]-di-μ-dicyanamido-1:2′κ2N1:N5;2:1′κ2N1:N5], [Cu2(C19H20N2O2)(C2N3)2]n, has been synthesized and characterized by CHN elemental analysis, IR spectroscopy, thermal analysis and X-ray single-crystal diffraction analysis. Structural studies show that the CuIIcentres in the dimeric asymmetric unit adopt distorted square-pyramidal geometries, as confirmed by the Addison parameter (τ) values. The chelating characteristics of theL-DM2−ligand results in the formation of a CuIIdimer with a double phenolate bridge in the asymmetric unit. In the crystal, the dimeric units are further linked to adjacent dimeric units through μ1,5-dca bridges to produce one-dimensional polymeric chains.

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A one-dimensional CdIIcoordination polymer constructed from 4-(dimethylamino)pyridinium-1-acetate ligands and thiocyanate coordination bridges

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229615011298 ◽

2015 ◽

Vol 71 (7) ◽

pp. 549-553 ◽

Cited By ~ 4

Author(s):

Hui-Ting Wang ◽

Lin Zhou

Keyword(s):

Supramolecular Network ◽

Zigzag Chain ◽

Cadmium Nitrate ◽

Thiocyanate Complex ◽

One Dimensional ◽

Distorted Octahedral Coordination ◽

Hydrogen Bond Interactions ◽

Acetate Ligand ◽

Distorted Octahedral ◽

Nitrate Tetrahydrate

A new cadmium–thiocyanate complex, namelycatena-poly[1-carboxymethyl-4-(dimethylamino)pyridinium [cadmium(II)-tri-μ-thiocyanato-κ4N:S;κ2S:N] [[[4-(dimethylamino)pyridinium-1-acetate-κ2O,O′]cadmium(II)]-di-μ-thiocyanato-κ2N:S;κ2S:N]], {(C9H13N2O2)[Cd(NCS)3][Cd(NCS)2(C9H12N2O2)]}n, was synthesized by the reaction of 4-(dimethylamino)pyridinium-1-acetate, cadmium nitrate tetrahydrate and potassium thiocyanide in aqueous solution. In the crystal structure, two types of CdIIatoms are observed in distorted octahedral coordination environments. One type of CdIIatom is coordinated by two O atoms from the carboxylate group of the 4-(dimethylamino)pyridinium-1-acetate ligand and by two N atoms and two S atoms from four different thiocyanate ligands, while the second type of CdIIatom is coordinated by three N atoms and three S atoms from six different thiocyanate ligands. Neighbouring CdIIatoms are linked by thiocyanate bridges to form a one-dimensional zigzag chain and a one-dimensional coordination polymer. Hydrogen-bond interactions are involved in the formation of the supramolecular network.

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Crystal structure of a one-dimensional looped-chain silver(I) coordination polymer:catena-poly[[silver(I)-bis{μ-4-[1-(5′-isopropyl-[1,1′:3′,1′′-terphenyl]-2′-yl)-1H-imidazol-2-yl]pyridine-κ2N:N′}] nitrate methanol monosolvate monohydrate]

Acta Crystallographica Section E Crystallographic Communications ◽

10.1107/s205698901600949x ◽

2016 ◽

Vol 72 (7) ◽

pp. 972-975

Author(s):

Suk-Hee Moon ◽

Ki-Min Park ◽

Youngjin Kang

Keyword(s):

Crystal Structure ◽

Hydrogen Bonds ◽

Chain Structure ◽

Dihedral Angles ◽

Supramolecular Network ◽

Two Dimensional ◽

Tetrahedral Geometry ◽

One Dimensional ◽

Distorted Tetrahedral Geometry ◽

Centroid Distance

In the title compound, {[Ag(C29H25N3)2]NO3·CH3OH·H2O}n, the AgIcation is four-coordinated by two pyridine N atoms and two imidazole N atoms from four individual 4-(1-(5′-isopropyl-[1,1′:3′,1′′-terphenyl]-2′-yl)-1H-imidazol-2-yl)pyridine (i-pro-pyim) ligands. This gives rise to a highly distorted tetrahedral geometry with bond angles falling in the range 100.33 (19)–122.76 (19)°. Two crystallographically independenti-pro-pyim ligands (AandB) adopt very similar conformations to one another, such that the dihedral angles between the pyridyl and imidazolyl rings in the two ligands are 40.7 (3) and 42.2 (3)°, respectively. Eachi-pro-pyim ligand binds two symmetry-related Ag+cations, leading to the formation of 14-membered cyclic dimers, in which the AgIatoms are separated by 6.963 (2) Å for the Ag–A2–Ag dimer and 7.020 (2) Å for Ag–B2–Ag. These cyclic dimers are alternately connected to each other by sharing AgIatoms, resulting in the formation of a looped-chain structure extending along the [100] direction. Moreover, adjacent looped chains are connected by intermolecular π–π interactions [centroid-to-centroid distance = 3.689 (4) Å], giving rise to the formation of a two-dimensional supramolecular network propagating parallel to (110). Several intermolecular C—H...O and O—H...O hydrogen bonds further contribute to the stabilization of the crystal structure.

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Short Review and opinion: New matter properties and applications based on Hybrids Graphene based Metamaterials

Current Graphene Science ◽

10.2174/2452273204999200528141157 ◽

2020 ◽

Vol 04 ◽

Author(s):

A. Guillermo Bracamonte

Keyword(s):

Short Review ◽

New Materials ◽

Design And Synthesis ◽

Chemical Structures ◽

Current State ◽

Potential Applications ◽

Fundamental Research ◽

Miniaturized Instrumentation ◽

And Control ◽

Conductive Properties

: Graphene as Organic material showed special attention due to their electronic and conductive properties. Moreover, its highly conjugated chemical structures and relative easy modification permitted varied design and control of targeted properties and applications. In addition, this Nanomaterial accompanied with pseudo Electromagnetic fields permitted photonics, electronics and Quantum interactions with their surrounding that generated new materials properties. In this context, this short Review, intends to discuss many of these studies related with new materials based on graphene for light and electronic interactions, conductions, and new modes of non-classical light generation. It should be highlighted that these new materials and metamaterials are currently in progress. For this reason it was showed and discussed some representative examples from Fundamental Research with Potential Applications as well as for their incorporations to real Advanced devices and miniaturized instrumentation. In this way, it was proposed this Special issue entitled “Design and synthesis of Hybrids Graphene based Metamaterials”, in order to open and share the knowledge of the Current State of the Art in this Multidisciplinary field.

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