Studying fluorous interactions in a series of coordination compounds derived from mono-pyridyl ligands equipped with hydrogen bonding functionality: exploiting anion⋯πF interaction in separating ClO4− anion from a competing mixture of anions

CrystEngComm ◽  
2013 ◽  
Vol 15 (45) ◽  
pp. 9415 ◽  
Author(s):  
Subhabrata Banerjee ◽  
Parthasarathi Dastidar
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Compounds ◽  
Pyridyl Ligands

scholarly journals The role of π–π stacking and hydrogen-bonding interactions in the assembly of a series of isostructural group IIB coordination compounds

2019 ◽  
Vol 75 (2) ◽  
pp. 178-188 ◽  
Author(s):  
Taraneh Hajiashrafi ◽  
Roghayeh Zekriazadeh ◽  
Keith J. Flanagan ◽  
Farnoush Kia ◽  
Antonio Bauzá ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Coordination Compounds ◽  
Spectroscopic Techniques ◽  
Stacking Interactions ◽  
X Ray Crystallography ◽  
Hydrogen Bonding Interactions ◽  
Π Stacking ◽  
Research Domain

The supramolecular chemistry of coordination compounds has become an important research domain of modern inorganic chemistry. Herein, six isostructural group IIB coordination compounds containing a 2-{[(2-methoxyphenyl)imino]methyl}phenol ligand, namely dichloridobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)zinc(II), [ZnCl2(C28H26N2O4)], 1, diiodidobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)zinc(II), [ZnI2(C28H26N2O4)], 2, dibromidobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)cadmium(II), [CdBr2(C28H26N2O4)], 3, diiodidobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)cadmium(II), [CdI2(C28H26N2O4)], 4, dichloridobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)mercury(II), [HgCl2(C28H26N2O4)], 5, and diiodidobis(2-{(E)-[(2-methoxyphenyl)azaniumylidene]methyl}phenolato-κO)mercury(II), [HgI2(C28H26N2O4)], 6, were synthesized and characterized by X-ray crystallography and spectroscopic techniques. All six compounds exhibit an infinite one-dimensional ladder in the solid state governed by the formation of hydrogen-bonding and π–π stacking interactions. The crystal structures of these compounds were studied using geometrical and Hirshfeld surface analyses. They have also been studied using M06-2X/def2-TZVP calculations and Bader's theory of `atoms in molecules'. The energies associated with the interactions, including the contribution of the different forces, have been evaluated. In general, the π–π stacking interactions are stronger than those reported for conventional π–π complexes, which is attributed to the influence of the metal coordination, which is stronger for Zn than either Cd or Hg. The results reported herein might be useful for understanding the solid-state architecture of metal-containing materials that contain M II X 2 subunits and aromatic organic ligands.

Synthesis and characterization of a cadmium(II)–organic supramolecular coordination compound based on the multifunctional 2-amino-5-sulfobenzoic acid ligand

2016 ◽  
Vol 72 (12) ◽  
pp. 939-946 ◽  
Author(s):  
Gan-Yin Yuan ◽  
Lei Zhang ◽  
Meng-Jie Wang ◽  
Kou-Lin Zhang
Keyword(s):  
Hydrogen Bonding ◽  
Solid State ◽  
Coordination Compound ◽  
Coordination Compounds ◽  
Structural Characteristics ◽  
Three Dimensional ◽  
Distorted Octahedral Geometry ◽  
Two Dimensional ◽  
Ambient Conditions ◽  
Supramolecular Coordination

Much attention has been paid by chemists to the construction of supramolecular coordination compounds based on the multifunctional ligand 5-sulfosalicylic acid (H3SSA) due to the structural and biological interest of these compounds. However, no coordination compounds have been reported for the multifunctional amino-substituted sulfobenzoate ligand 2-amino-5-sulfobenzoic acid (H2asba). We expected that H2asba could be a suitable building block for the assembly of supramolecular networks due to its interesting structural characteristics. The reaction of cadmium(II) nitrate with H2asba in the presence of the auxiliary flexible dipyridylamide ligandN,N′-bis[(pyridin-4-yl)methyl]oxamide (4bpme) under ambient conditions formed a new mixed-ligand coordination compound, namely bis(3-amino-4-carboxybenzenesulfonato-κO1)diaquabis{N,N′-bis[(pyridin-4-yl)methyl]oxamide-κN}cadmium(II)–N,N′-bis[(pyridin-4-yl)methyl]oxamide–water (1/1/4), [Cd(C7H6NO5S)2(C14H14N4O2)2(H2O)2]·C14H14N4O2·4H2O, (1), which was characterized by single-crystal and powder X-ray diffraction analysis (PXRD), FT–IR spectroscopy, thermogravimetric analysis (TG), and UV–Vis and photoluminescence spectroscopic analyses in the solid state. The central CdIIatom in (1) occupies a special position on a centre of inversion and exhibits a slightly distorted octahedral geometry, being coordinated by two N atoms from two monodentate 4bpme ligands, four O atoms from two monodentate 4-amino-3-carboxybenzenesulfonate (Hasba−) ligands and two coordinated water molecules. Interestingly, complex (1) further extends into a threefold polycatenated 0D→2D (0D is zero-dimensional and 2D is two-dimensional) interpenetrated supramolecular two-dimensional (4,4) layer through intermolecular hydrogen bonding. The interlayer hydrogen bonding further links adjacent threefold polycatenated two-dimensional layers into a three-dimensional network. The optical properties of complex (1) indicate that it may be used as a potential indirect band gap semiconductor material. Complex (1) exhibits an irreversible dehydration–rehydration behaviour. The fluorescence properties have also been investigated in the solid state at room temperature.

scholarly journals 2D and 3D Supramolecular Structures of trans- and cis-Octahedral Coordination Compounds of Ethyl-5-methyl-4-imidazolecarboxylate with Transition Metal Ions

2017 ◽  
Vol 56 (1) ◽  
Author(s):  
Víctor Adán Barrera-Guzmán ◽  
Raúl Ramírez-Trejo ◽  
Edgar Omar Rodríguez-Hernández ◽  
Noráh Barba- Behrens
Keyword(s):  
Hydrogen Bonding ◽  
Coordination Compounds ◽  
Transition Metal Ions ◽  
Water Molecules ◽  
Supramolecular Arrangements ◽  
Important Intermediate ◽  
Coordinated Water ◽  
2D And 3D ◽  
Nitrate Anions ◽  
Pleated Sheet

Ethyl-5-methyl-4-imidazolecarboxylate (emizco) is an important intermediate in the synthesis of pharmacological active compounds. In this work, there were synthetized and characterized the following coordination compounds with emizco: <em>trans</em>-[Co(emizco)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub> <strong>1</strong>, <em>trans</em>-[Ni(emizco)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub> <strong>2</strong>, <em>trans</em>-[Cd(emizco)<sub>2</sub>(H<sub>2</sub>O)<sub>2</sub>](NO<sub>3</sub>)<sub>2</sub> (<strong>3</strong>) and <em>cis</em>-[Cd(emizco)<sub>2</sub>Br<sub>2</sub>] (<strong>4</strong>). 2D or 3D supramolecular arrangements were stabilized. All nitrate <em>trans</em> octahedral compounds stabilized a 3D supramolecular arrangement <em>via</em> hydrogen bonding, throughout the nitrate anions, the ligand and the coordinated water molecules; the <em>cis</em>-octahedral halide complex formed a 2D pleated sheet arrangement, by intermolecular π stacking and halide-hydrogen bonding.

The role of hydrogen bonding on supramolecular assembly of the mercury coordination compounds and final structure influenced by solvent effect

2015 ◽  
Vol 429 ◽  
pp. 1-14 ◽  
Author(s):  
Ghodrat Mahmoudi ◽  
Ali Akbar Khandar ◽  
Jan K. Zaręba ◽  
Michał J. Białek ◽  
Masoumeh Servati Gargari ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Solvent Effect ◽  
Coordination Compounds ◽  
Supramolecular Assembly ◽  
Final Structure

Two new bis(pyridine)-bis(amide)-based copper(II) coordination compounds for the electrochemical detection of trace Cr(VI) and efficient electrocatalytic oxygen evolution

2022 ◽  
Vol 0 (0) ◽  
Author(s):  
Hong-Yan Lin ◽  
Qian-Qian Liu ◽  
Yuan Tian ◽  
Ling Zeng
Keyword(s):  
Hydrogen Bonding ◽  
Oxygen Evolution ◽  
Electrochemical Detection ◽  
Layered Structure ◽  
Coordination Compounds ◽  
Carbon Paste ◽  
Nitrobenzoic Acid ◽  
Polymeric Chains ◽  
Metal Organic ◽  
Polymeric Framework

Abstract Two new metal-organic compounds (MOCs) [Cu(L)0.5(3-nba)2] (1) and [Cu(L)(2,5-tdc)] (2) have been hydrothermally synthesized by employing the ligand N,N′-di(3-pyridyl)adipoamide (L) and two carboxylic acids (3-Hnba = 3-nitrobenzoic acid, 2,5-H2tdc = 2,5-thiophenedicarboxylic acid) as ligands. Compound 1 displays a metal-organic chain-like structure formed by the {Cu2(3-nba)4} double-paddle wheel units and the µ 2-bridging L ligands. The adjacent polymeric chains form a supramolecular layered structure through hydrogen bonding. Compound 2 shows a 3D metal-organic polymeric framework derived from Cu-L layers and µ 2-bridging 2,5-tdc ligands, which presents a 3,5-connected {4.62}{4.66.83} topology. The electrochemical and electrocatalytic behavior of the two compounds has been studied in detail. Carbon paste working electrodes modified with compounds 1 and 2 can be used as highly selective sensors for detecting traces Cr(VI). Both electrodes show also electrocatalytic performance in oxygen evolution reactions (OERs).

Hydrogen bonding in coordination compounds containing homoconjugated bis-dimethylsulfoxide cation. Ab initio and IR studies

2002 ◽  
Vol 605 (2-3) ◽  
pp. 221-226 ◽  
Author(s):  
G.S. Denisov ◽  
A. Koll ◽  
V.I. Lobadyuk ◽  
V.M. Schreiber ◽  
A.V. Shurukhina ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Ab Initio ◽  
Coordination Compounds ◽  
Ir Studies

Assembly of Zn(II) Coordination Polymers Based on Tetrachloroterephthalate and Dipyridyl-type Ligands

2014 ◽  
Vol 69 (3) ◽  
pp. 299-304
Author(s):  
Le Chen ◽  
Wei Fan ◽  
Qing-Qing Zhang ◽  
Sheng-Chun Chen ◽  
Ming-Yang He ◽  
...  
Keyword(s):  
Hydrogen Bonding ◽  
Ambient Temperature ◽  
Coordination Polymers ◽  
Coordination Compounds ◽  
Ph Regulation ◽  
Polymeric Chain ◽  
Coordination Unit ◽  
X Ray ◽  
Hydrogen Bonding Interactions ◽  
Multiple Hydrogen Bonding

2,3,5,6-Tetrachloroterephthalic acid (H2BDC-Cl4) has been selected for assembly with ZnII ions in the presence of the co-ligands 2,2-bipydrine (bipy) or 1,10-phenanthroline (phen). Through pH regulation, two coordination compounds were obtained at ambient temperature with the formula [Zn2(BDC-Cl4)(bipy)2(OAc)2(H2O)2] (1) and {[Zn(BDC-Cl4)(phen)2](CH3OH)(H2O)}n (2). Single-crystal X-ray analysis has indicated that complex 1 exhibits a binuclear coordination unit, while complex 2 is a wave-like polymeric chain. In both complexes, the anionic BDC-Cl4 ligands show bis-monodentate bridging coordination in the trans-mode. Because of the introduction of the bipyridyl co-ligands, multiple hydrogen-bonding interactions and p-p interactions are formed in both complexes

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