The First β-Diketiminate−Ag(I) Complexes. Macrocyclic Dinuclear and Tetranuclear Ag(I)-Complexes and Linear Coordination Polymer Ag(I)-Complex

2005 ◽  
Vol 44 (9) ◽  
pp. 3010-3012 ◽  
Author(s):  
Chizu Shimokawa ◽  
Shinobu Itoh
Keyword(s):  
Coordination Polymer ◽  
Linear Coordination

Structural, spectral and docking studies of a coordination polymer of zinc(II) formed by a pyridine-derived linker

2018 ◽  
Vol 73 (6) ◽  
pp. 369-375 ◽  
Author(s):  
Farzin Marandi ◽  
Keyvan Moeini ◽  
Fereshteh Alizadeh ◽  
Zahra Mardani ◽  
Ching Kheng Quah ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Docking Studies ◽  
Stacking Interactions ◽  
X Ray Diffraction ◽  
X Ray ◽  
H Nmr ◽  
Docking Calculations ◽  
Ft Ir ◽  
Zinc Coordination ◽  
Linear Coordination

AbstractA mixed ligand zinc coordination polymer, {Zn(μ-DPE)(DBM)2}n (1) (HDBM: dibenzoylmethane and DPE: (E)-1,2-di(pyridin-4-yl)ethene), was prepared and identified by elemental analysis, FT-IR, 1H NMR spectroscopy and single-crystal X-ray diffraction. In the 1D linear coordination polymer of 1, the zinc atom has a ZnN2O4 environment with octahedral geometry. These complex units are linked by the bridging of the planar N2 donor DPE ligands. In the coordination network of complex 1, in addition to the hydrogen bonds, the network is more stabilized by π–π stacking interactions between pyridine and β-diketone moieties of the ligands. These interactions increase the ability of the compound to interact with biomacromolecules (BRAF kinase, CatB, DNA gyrase, HDAC7, rHA, RNR, TrxR, TS and Top II) as investigated by docking calculations.

Linear Coordination Polymer Synthesis from Bis‐Catechol Functionalized RAFT Polymers

2020 ◽  
Vol 41 (18) ◽  
pp. 2000366
Author(s):  
Reece W. Lewis ◽  
Nino Malic ◽  
Kei Saito ◽  
Neil R. Cameron ◽  
Richard A. Evans
Keyword(s):  
Coordination Polymer ◽  
Polymer Synthesis ◽  
Raft Polymers ◽  
Linear Coordination

[Ni(cyclam)(OCOR)2], a finite molecular complex: hydrogen-bonded supramolecular aggregation in one, two and three dimensions, and coordination polymers in one and two dimensions

2001 ◽  
Vol 58 (1) ◽  
pp. 78-93 ◽  
Author(s):  
Choudhury M. Zakaria ◽  
George Ferguson ◽  
Alan J. Lough ◽  
Christopher Glidewell
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Polymer ◽  
Hydrogen Bonds ◽  
Three Dimensional ◽  
Two Dimensions ◽  
Three Dimensions ◽  
Two Dimensional ◽  
Compound I ◽  
Supramolecular Aggregation ◽  
Linear Coordination

In the complexes [Ni(cyclam)(OCOR)2] (cyclam = 1,4,8,11-tetraazacyclotetradecane), where (RCOO)− is 2-naphtho-ate [bis-(2-naphthoato)-1,4,8,11-tetraazacyclotetradecanenickel(II), (I), monoclinic P21/c, Z′ = 0.5], 3,5-dinitrobenzoate [bis-(3,5-dinitrobenzoato)-1,4,8,11-tetraazacyclotetradecanenickel(II), (II), triclinic P\bar 1, Z′ = 0.5], 4-nitrobenzoate [bis-(4-nitrobenzoato)-1,4,8,11-tetraazacyclotetradecanenickel(II), (III), monoclinic P21/n, Z′ = 0.5], 3-hydroxybenzoate [bis-(3-hydroxybenzoato)-1,4,8,11-tetraazacyclotetradecanenickel(II), (IV), monoclinic P21/c, Z′ = 0.5] and 4-aminobenzo-ate [bis-(4-aminobenzoato)-1,4,8,11-tetraazacyclotetradecanenickel(II), (V), monoclinic C2/c, Z′ = 0.5], the Ni lies on a centre of inversion with monodentate carboxylato ligands occupying trans sites. Compound (I) consists of isolated molecules. In (II) and (III), N—H...O hydrogen bonds link the complexes into chains. Compounds (IV) and (III) form two- and three-dimensional structures generated entirely by hard hydrogen bonds. The 5-hydroxyisophthalate(2−) anion forms a hydrated complex, [Ni(cyclam)(5-hydroxyisophthalate)(H2O)]·4H2O {[aqua-(5-hydroxyisophthalato)-1,4,8,11-tetraazacyclotetradecanenickel(II)] tetrahydrate, (VI), monoclinic Cc, Z′ = 1}, in which the monodentate carboxylato ligand and a water molecule occupy trans sites at Ni: extensive hydrogen bonding links the molecular aggregates into a three-dimensional framework. The terephthalate(2−) anion forms a hydrated linear coordination polymer {catena-poly[terephthalato-1,4,8,11-tetraazacyclotetradecanenickel(II)] monohydrate, (VII), monoclinic C2/c, Z′ = 0.5}. In 1,2,4,5-benzenecarboxylate tris[1,4,8,11-tetraazacyclotetradecanenickel(II)] diperchlorate hydrate (VIII), [Ni(cyclam)]3·[1,2,4,5-benzenetetracarboxylate(4−)]·[ClO4]2·-[H2O]3, there are two distinct Ni sites: [Ni(cyclam)]2+ and centrosymmetric [C10H2O8]4− units form a two-dimensional coordination polymer, whose sheets are linked by centrosymmetric [Ni(cyclam)(H2O)2]2+ cations.

scholarly journals A new structural motif for cadmium dithiocarbamates: crystal structures and Hirshfeld surface analyses of homoleptic zinc and cadmium morpholine dithiocarbamates

2019 ◽  
Vol 234 (5) ◽  
pp. 341-349 ◽  
Author(s):  
Jimmy Ahmad ◽  
Fiona N.-F. How ◽  
Siti Nadiah Abdul Halim ◽  
Mukesh M. Jotani ◽  
See Mun Lee ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Molecular Structures ◽  
Structural Motif ◽  
Planar Geometry ◽  
One Dimensional ◽  
Hirshfeld Surfaces ◽  
Binuclear Molecule ◽  
Square Planar ◽  
Secondary Bonding ◽  
Linear Coordination

Abstract The crystal and molecular structures of two homoleptic morpholine-derived dithiocarbamates of zinc, binuclear {Zn[S2CN(CH2CH2)2O)2]2}2 (1), and cadmium, one-dimensional coordination polymer {Cd[S2CN(CH2CH2)2O)2]2}2 (2), are described. In 1, a centrosymmetric binuclear molecule is found as there are equal numbers of chelating and bidentate bridging dithiocarbamate ligands; weak transannular Zn···S interactions are found within the resultant eight-membered {···SCSZn}2 ring which has the form of a chair. The resultant 4+1 S5 donor set is highly distorted with the geometry tending towards a square-pyramid. By contrast, a square-planar geometry is found in centrosymmetric 2 defined by symmetrically chelating dithiocarbamate ligands. The presence of Cd···S secondary bonding in the crystal of 2 leads to a distorted 4+2 S6 octahedron and a linear coordination polymer, which is unprecedented in the structural chemistry of cadmium dithiocarbamates. The analyses of the Hirshfeld surfaces for 1 and 2 show the dominance of H···H, S···H/H···S and O···H/H···O contacts to the surface, i.e. contributing around 90 and 80%, respectively.

A linear heterometallic bismuth–copper coordination polymer containing two types of organic ligands

2015 ◽  
Vol 71 (2) ◽  
pp. 100-102 ◽  
Author(s):  
Zi-Long Yue ◽  
Yu-Quan Feng ◽  
Seik Weng Ng
Keyword(s):  
Coordination Polymer ◽  
Water Molecules ◽  
Nitrate Anion ◽  
Metal Centre ◽  
Pyramidal Geometry ◽  
Copper Coordination ◽  
Triclinic Unit Cell ◽  
Square Pyramidal Geometry ◽  
Trigonal Prismatic ◽  
Linear Coordination

In the linear coordination polymercatena-poly[[[aqua(1,10-phenanthroline-κ2N,N′)copper(II)]-μ-pyridine-2,6-dicarboxylato-κ4O2:O2′,N,O6-[(nitrato-κ2O,O′)bismuth(III)]-μ-pyridine-2,6-dicarboxylato-κ4O2,N,O6:O6′] dihydrate], {[BiIIICuII(C7H3NO4)2(NO3)(C12H8N2)(H2O)]·2H2O}n, the BiIIIcation isO,N,O′-chelated by the two pyridine-2,6-dicarboxylate ligands andO,O′-chelated by the nitrate anion, the nine coordinating atoms conferring a tricapped trigonal prismatic environment on the metal centre. Each pyridine-2,6-dicarboxylate ligand uses one of its carboxylate O atoms to bind to an aqua(1,10-phenanthroline)copper(II) unit, the Cu—O dative bonds giving rise to the formation of a ribbon motif. The CuIIcation exhibits a square-pyramidal geometry. The ribbon motif propagates along the shortest axis of the triclinic unit cell and the solvent water molecules are hydrogen bonded to the same ribbon.

scholarly journals A novel one-dimensional chain built of vanadyl ions and pyrazine-2,5-dicarboxylate

2015 ◽  
Vol 44 (25) ◽  
pp. 11380-11387 ◽  
Author(s):  
Marianne Lankelma ◽  
Jeroen de Boer ◽  
Marilena Ferbinteanu ◽  
André Luis Dantas Ramos ◽  
Radu Tanasa ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Dimensional Chain ◽  
One Dimensional ◽  
Linear Coordination

Stand in line – a vanadium salt and a pyrazine ligand self-assemble to a linear coordination polymer.

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