The effect of weak interactions on the shape of cadmium(II) coordination polymers with pyridine-based hydrazines

Three new inorganic–organic coordination polymers based on a versatile linking unit 2-(1H-imidazole-1-yl)acetate (Hima) and divalent Mn(ii), Ni(ii), and Cu(ii) ions, exhibiting two kinds of two dimensionalities with different topological structures, have been prepared in water medium and structurally characterized by single-crystal X-ray diffraction analysis. Reaction of MnCl2·4H2O and Ni(NO3)2·6H2O with Hima yielded neutral two-dimensional (2D) coordination polymers [M(ima)2]n, M = Mn(ii) 1, and Ni(ii) 2 with isostructural 2D coordination polymers possessing (3,6) topology structures, which further stack into three-dimensional (3D) supramolecular networks through C–H···O weak interactions. However, when Cu(NO3)2·4H2O was used, a neutral 2D coordination polymer [Cu(ima)2]n 3 consisting of rhombus units was generated, which showed a 3D supramolecular network through C–H···O weak interactions. Among these polymers, the building block ima anion exhibits different coordination modes. These results indicate that the versatile nature of this flexible ligand, together with the coordination preferences of the metal ions, plays a critical role in construction of these novel coordination polymers. Spectral and thermal properties of these new materials have also been investigated.

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The role of weak interactions in the crystal packing of two novel 1D Hg(II) coordination polymers and investigation for preparation of their rod and spherical structures

Inorganica Chimica Acta ◽

10.1016/j.ica.2019.119243 ◽

2020 ◽

Vol 501 ◽

pp. 119243 ◽

Cited By ~ 1

Author(s):

Ghodrat Mahmoudi ◽

Payam Hayati ◽

Khosro Mohammadi ◽

Ardavan Masoudiasl ◽

Joel T. Mague ◽

...

Keyword(s):

Coordination Polymers ◽

Crystal Packing ◽

Weak Interactions ◽

Spherical Structures

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Synthesis and characterization of two one-dimensional CdII coordination polymers (CPs) with 5-amino-2,4,6-tribromoisophthalic acid and flexible N-donor bipyridyl ligands

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s205322961801015x ◽

2018 ◽

Vol 74 (8) ◽

pp. 951-960 ◽

Cited By ~ 2

Author(s):

Chong Zhang ◽

Kou-Lin Zhang

Keyword(s):

Solid State ◽

Coordination Polymers ◽

Diffuse Reflectance ◽

Spectroscopic Analysis ◽

Weak Interactions ◽

Three Dimensional ◽

One Dimensional ◽

Solution Methods ◽

Supramolecular Networks ◽

Indirect Band Gap

The bromo-substituted aromatic dicarboxylic acid 5-amino-2,4,6-tribromoisophthalic acid (H2ATBIP) was used to assemble with CdII ions in the presence of the N-donor flexible bipyridyl ligands 3,3′-(diazene-1,2-diyl)dipyridine (mzpy) and 1,3-bis(pyridin-3-ylmethyl)urea (3bpmu), leading to the formation of two chain coordination polymers by adopting solution methods, namely, catena-poly[[[triaqua(5-amino-2,4,6-tribromoisophthalato-κO)cadmium(II)]-μ-3,3′-(diazene-1,2-diyl)dipyridine-κ2 N 1:N 1′] dihydrate], {[Cd(C8H2Br3NO4)(C10H8N4)(H2O)3]·2H2O} n or {[Cd(ATBIP)(mzpy)(H2O)3]·2H2O} n , (1), and catena-poly[[[tetraaquacadmium(II)]-μ-1,3-bis(pyridin-3-ylmethyl)urea-κ2 N 1:N 1′-[diaquabis(5-amino-2,4,6-tribromoisophthalato-κO)cadmium(II)]-μ-1,3-bis(pyridin-3-ylmethyl)urea-κ2 N 1:N 1′] octahydrate], {[Cd(C8H2Br3NO4)(C12H12N4O)(H2O)3]·4H2O} n or {[Cd(ATBIP)(3bpmu)(H2O)3]·4H2O} n , (2). Both complexes were characterized by FT–IR spectroscopic analysis, thermogravimetric analysis (TGA), solid-state diffuse reflectance UV–Vis spectroscopic analysis, and single-crystal and powder X-ray diffraction analysis (PXRD). The mzpy and 3bpmu ligands bridge the CdII metal centres in (1) and (2) into one-dimensional chains, and the ATBIP2− ligands show a monodentate coordination to the CdII centres in both coordination polymers. A discrete water tetramer exists in (1). Within the chains of (1) and (2), there are halogen bonds between adjacent ATBIP2− and mzpy or 3bpmu ligands, as well as hydrogen bonds between the ATBIP2− ligands and the coordinated water molecules. With the aid of weak interactions, the structures of (1) and (2) are further extended into three-dimensional supramolecular networks. An analysis of the solid-state diffuse reflectance UV–Vis spectra of (1) and (2) indicates that a wide indirect band gap exists in both complexes. Complexes (1) and (2) exhibit irreversible and reversible dehydration–rehydration behaviours, respectively, and the solid-state fluorescence properties of both complexes have been studied.

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Three new ZnII coordination polymers constructed from a semi-rigid tricarboxylic acid: structural changes caused by flexibility and luminescence sensing for hexavalent chromate anions

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229619011069 ◽

2019 ◽

Vol 75 (9) ◽

pp. 1286-1298 ◽

Cited By ~ 1

Author(s):

Yanyan An ◽

Liping Lu ◽

Miaoli Zhu

Keyword(s):

Aqueous Solution ◽

Hexavalent Chromium ◽

Coordination Polymers ◽

Structural Changes ◽

Ph Value ◽

Limit Of Detection ◽

Weak Interactions ◽

3D Structure ◽

Tricarboxylic Acid ◽

Hydrothermal Conditions

Coordination polymers (CPs) with specific structures and functional luminescence have been widely designed as sensors for detecting small molecules and ions. In this study, with or without the help of an N-donor auxiliary linker, three new ZnII CPs, namely, three-dimensional (3D) poly[[pentaaquabis[μ3-5-(4-carboxybenzyloxy)isophthalato]bis[μ6-5-(4-carboxylatobenzyloxy)isophthalato]di-μ3-hydroxido-hexazinc(II)] trihydrate], {[Zn6(C16H10O7)2(C16H9O7)2(OH)2(H2O)5]·3H2O} n or {[Zn6(μ3-HL)2(μ6-L)2(μ3-OH)2(H2O)5]·3H2O} n , (I), one-dimensional (1D) catena-poly[[[aqua(1,10-phenanthroline)zinc(II)]-μ2-5-(4-carboxybenzyloxy)isophthalato] dihydrate], {[Zn(C16H10O7)(C12H8N2)(H2O)]·2H2O} n or {[Zn(μ2-HL)(phen)(H2O)]·2H2O} n (phen is 1,10-phenanthroline), (II), and 3D poly[diaquatetrakis(4,4′-bipyridine)bis[μ6-5-(4-carboxylatobenzyloxy)isophthalato]di-μ3-formato-di-μ3-hydroxido-pentazinc(II)], [Zn5(C16H9O7)2(HCOO)2(OH)2(C10H8N2)4(H2O)2] n or [Zn5(μ4-L)2(bpy)4(μ2-OH)2(μ3-HCOO)2(H2O)2] n (bpy is 4,4′-bipyridine), (III), have been constructed from the semi-rigid tricarboxylic acid 5-(4-carboxybenzyloxy)isophthalic acid (H3 L) under hydrothermal conditions. CP (I) exhibits a twofold interpenetrated 3D+3D→3D skeleton with a 3,5-conn topology constructed from triangular trinuclear [Zn3(COO)4(μ3-OH)] clusters, in which the H3 L ligand adopts three different coordination modes. CP (II) exhibits a 1D infinite chain and stacking that gives a 3D structure mediated by hydrogen bonds and weak interactions. CP (III) is an interesting 3D 3,4,8-conn network including linear tetranuclear [Zn4(μ2-OH)2(HCOO)2(COO)2] clusters with a new {4·62}2{4·64·8}{46·619·83} topological symbol. The influences of the flexible –CH2–O– linker of the H3 L ligand and subtle environmental factors, such as solvent, pH value and auxiliary ligands, on the formation of the final structures are also discussed. The solid-state fluorescence spectra of CPs (I)–(III) were recorded at room temperature and all show better fluorescence performances than H3 L. In particular, (II) can act as a potential multifunctional fluorescent material for sensing hexavalent chromium ions in aqueous solution with high stability, selectivity and sensitivity. Under ultraviolet light of 365 nm from a UV lamp, a signal response of fluorescence from turning on to off can be observed with the naked eye. It was found that the detection for hexavalent chromium (i.e. Cr2O7 2−) by (II) has a high selectivity [K SV = 1.61 × 104 M −1 and limit of detection (LOD) = 0.434 µM] in aqueous solution. Quenching mechanisms were also studied in detail.

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Syntheses and structures of two new coordination polymers generated from a 4-aminotriazole-bridged organic ligand and CoII salts

Acta Crystallographica Section C Structural Chemistry ◽

10.1107/s2053229617001437 ◽

2017 ◽

Vol 73 (3) ◽

pp. 247-253 ◽

Cited By ~ 2

Author(s):

Xue-Ru Wang ◽

Jian-Ping Ma ◽

Yu-Bin Dong

Keyword(s):

Coordination Polymers ◽

Weak Interactions ◽

Organic Ligand ◽

Organic Ligands ◽

Two Dimensional ◽

Structural Variations ◽

X Ray ◽

Π Interactions ◽

Coordination Spheres ◽

Solvothermal Conditions

Organic ligands and counter-anions influence the coordination spheres of metal cations and hence the construction of coordination polymers (CPs). The specific bent geometries of five-membered heterocyclic triazole bridging organic ligands are capable of generating CPs with novel patterns not easily obtained using rigid linear ligands. A multidentate 4-aminotriazole-bridged organic ligand, namely 4-amino-3,5-bis(4,3′-bipyridyl-5′-yl)-4H-1,2,4-triazole (L) has been prepared and used to synthesize two CoII coordination polymers, namely poly[[[μ2-4-amino-3,5-bis(4,3′-bipyridyl-5′-yl)-4H-1,2,4-triazole-κ2 N:N′]bis(methanol-κO)cobalt(II)] bis(perchlorate)], {[Co(C22H16N8)2(CH3OH)2](ClO4)2} n , (I), and poly[[μ3-4-amino-3,5-bis(4,3′-bipyridyl-5′-yl)-4H-1,2,4-triazole-κ3 N:N′:N′′]dichloridocobalt(II)], [CoCl2(C22H16N8)] n , (II), using CoX 2 salts [X = ClO4 for (I) and Cl for (II)] under solvothermal conditions. Single-crystal X-ray structure analysis revealed that they both feature two-dimensional networks. Cobalt is located on an inversion centre in (I) and in a general position in (II). In (I), L functions as a bidentate cis-conformation ligand linking CoII ions, while it functions as a tridentate trans-conformation linker binding CoII ions in (II). In addition, O—H...N and N—H...O hydrogen bonds and C—H...π interactions exist in (I), while N—H...Cl and π–π interactions exist in (II), and these weak interactions play an important role in aligning the two-dimensional nets of (I) and (II) in the solid state. As the compounds were synthesized under the same conditions, the significant structural variations between (I) and (II) are believed to be determined by the different sizes and coordination abilities of the counter-anions. IR spectroscopy and diffuse reflectance UV–Vis spectra were also used to investigate the title compounds.

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Synthesis and structural characterization of two coordination polymers constructed by bis(4-(1H-imidazol-1-yl)phenyl)methanone and 5-(tert-butyl)isophthalate ligands

Zeitschrift für Naturforschung B ◽

10.1515/znb-2018-0197 ◽

2019 ◽

Vol 74 (3) ◽

pp. 261-265 ◽

Cited By ~ 4

Author(s):

Gao-Feng Wang ◽

Shu-Wen Sun ◽

Wei-Bing Wang ◽

Hong Sun ◽

Shao-Fei Song

Keyword(s):

Single Crystal ◽

Coordination Polymers ◽

Weak Interactions ◽

Three Dimensional ◽

X Ray Diffraction ◽

X Ray ◽

Dimensional Network ◽

Elemental Analyses ◽

Solvothermal Methods

AbstractTwo coordination polymers, {[Co(bipmo)(tbip)]·3H2O}n (1) and {[Cd(bipmo)(tbip)]·3H2O}n (2) (bipmo=bis(4-(1H-imidazol-1-yl)phenyl)methanone, H2tbip=5-tert-butylisophthalic acid), were synthesized by solvothermal methods and structurally characterized by elemental analyses, infrared spectroscopy, and single-crystal X-ray diffraction. The results from single-crystal X-ray diffraction data indicate that the solid state structures of 1 and 2 consist of metal-aromatic carboxylate layers, which are pillared by weak interactions to generate a three-dimensional network. The topological structures of 1 and 2 are uninodal nets based on 3-connected nodes with the Schläfli symbol of {63}.

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Ferrocene decorated unusual mercury(ii) dithiocarbamate coordination polymers: crystallographic and computational studies

CrystEngComm ◽

10.1039/d0ce01867h ◽

2021 ◽

Vol 23 (12) ◽

pp. 2414-2423

Author(s):

Amita Singh ◽

Ayushi Singh ◽

Suryabhan Singh ◽

Gabriele Kociok-Köhn ◽

Mohd. Muddassir ◽

...

Keyword(s):

Coordination Polymers ◽

Weak Interactions ◽

Computational Techniques ◽

Computational Studies

Three new ferrocene decorated 1D coordination polymers of Hg(ii) dithiocarbamates were synthesized and the nature of their weak interactions was addressed using computational techniques.

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Metallosupramolecular Compounds Based on Copper(II/I) Chloride and Two Bis-Tetrazole Organosulfur Ligands

Chemistry ◽

10.3390/chemistry2010005 ◽

2020 ◽

Vol 2 (1) ◽

pp. 33-49 ◽

Cited By ~ 1

Author(s):

Olaya Gómez-Paz ◽

Rosa Carballo ◽

Ana Belén Lago ◽

Ezequiel M. Vázquez-López

Keyword(s):

Coordination Polymer ◽

Single Crystals ◽

Intermolecular Interactions ◽

Coordination Polymers ◽

Crystal Packing ◽

Weak Interactions ◽

Synthetic Methods ◽

Supramolecular Interactions ◽

Chloride Dihydrate ◽

Hirshfeld Surfaces

The present work assesses the ability of two flexible bis-tetrazole organosulfur ligands to build up different metallosupramolecular compounds based on the analysis of the different supramolecular interactions. The reaction of copper(II) chloride dihydrate with the N,N’-donor dithioether ligands bis(1-methyl-1H-tetrazole-5-ylthio)methane (BMTTM) and 1,2-bis(1-methyl-1H-tetrazole-5-ylthio)ethane (BMTTE) was investigated using different synthetic methods. Four compounds have been obtained as single crystals: two pseudopolymorphic 1D Cu(II) coordination polymers with the ligand BMTTM, a 2D Cu(II) coordination polymer and a discrete Cu(I) tetramer with the BMTTE ligand. The effects of the weak interactions on the crystal packing and the Hirshfeld surfaces of the structures were analyzed to clarify the nature of the intermolecular interactions.

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New 1D diorganotin(iv) dithiolate coordination polymers: crystallographic, computational, Hirshfeld surface and thermal analyses

CrystEngComm ◽

10.1039/c9ce01917k ◽

2020 ◽

Vol 22 (11) ◽

pp. 2049-2059 ◽

Cited By ~ 4

Author(s):

Pooja Singh ◽

Amita Singh ◽

Ayushi Singh ◽

Ashish Kumar Singh ◽

Gabriele Kociok-Köhn ◽

...

Keyword(s):

Coordination Polymers ◽

Weak Interactions ◽

Thermal Analyses ◽

Hirshfeld Surface ◽

Computational Techniques

Three new 1D coordination polymers of diorganotin(iv) dithiolates synthesized and the nature of their weak interactions addressed using computational techniques.

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Controllable Macroscopic Chirality of Coordination Polymers through pH and Anion‐Mediated Weak Interactions

Chemistry - A European Journal ◽

10.1002/chem.202102954 ◽

2021 ◽

Author(s):

Li-Min Zheng ◽

Lan-Qing Wu ◽

Yan Xu ◽

Ting Hou ◽

Jia-Ge Jia ◽

...

Keyword(s):

Coordination Polymers ◽

Weak Interactions

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