Synthesis, Crystal Structure and Thermal Properties of Copper(II) Orotato Complex with 2,2’-Bipyridine

2005 ◽  
Vol 60 (11) ◽  
pp. 1138-1142 ◽  
Author(s):  
Okan Zafer Yeşilel ◽  
Halis Ölmez ◽  
Hasan İçbudak ◽  
Orhan Büyükgüngör
Keyword(s):  
Diffraction Analysis ◽  
Thermal Analyses ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Carboxylate Oxygen ◽  
Air Atmosphere ◽  
Dimensional Network ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

A mixed-ligand orotato (HOr) complex of Cu(II) with 2,2’-bipyridine (bipy) was synthesized and characterized by elemental analysis, magnetic susceptibility, UV-vis and FT-IR spectroscopy, TG / DTA techniques and X-ray diffraction analysis. X-Ray diffraction analysis has shown that the squarepyramidal five-coordinate copper atom is chelated by the deprotonated N3 pyrimidine atom and the carboxylate oxygen atom of the bidentate orotato dianion, and to the two nitrogen atoms of the 2,2’- bipyridine molecule. A water molecule is attached above the N3O plane. Thermal analyses showed that the title compound decomposes in two steps over the range 20 - 1000 °C on heating in a static air atmosphere. Intermolecular hydrogen-bonds and π-ring interactions lead to the formation of a three-dimensional network.

Two novel organic–inorganic hybrid materials from tetrachloridometallate(II) salts and 4-[(E)-2-(pyridin-1-ium-2-yl)ethenyl]pyridinium

2015 ◽  
Vol 71 (1) ◽  
pp. 48-52 ◽  
Author(s):  
José J. Campos-Gaxiola ◽  
Susana P. Arredondo Rea ◽  
Ramón Corral Higuera ◽  
Herbert Höpfl ◽  
Adriana Cruz Enríquez
Keyword(s):  
Three Dimensional ◽  
Stacking Interactions ◽  
X Ray Diffraction ◽  
Inorganic Hybrid ◽  
X Ray ◽  
Pyridinium Cation ◽  
Hydrogen Bonding Interactions ◽  
Dimensional Network ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

Two organic–inorganic hybrid compounds have been prepared by the combination of the 4-[(E)-2-(pyridin-1-ium-2-yl)ethenyl]pyridinium cation with perhalometallate anions to give 4-[(E)-2-(pyridin-1-ium-2-yl)ethenyl]pyridinium tetrachloridocobaltate(II), (C12H12N2)[CoCl4], (I), and 4-[(E)-2-(pyridin-1-ium-2-yl)ethenyl]pyridinium tetrachloridozincate(II), (C12H12N2)[ZnCl4], (II). The compounds have been structurally characterized by single-crystal X-ray diffraction analysis, showing the formation of a three-dimensional network throughX—H...ClnM−(X= C, N+;n= 1, 2;M= CoII, ZnII) hydrogen-bonding interactions and π–π stacking interactions. The title compounds were also characterized by FT–IR spectroscopy and thermogravimetric analysis (TGA).

Doped Ti-pillared clays as effective adsorbents – Application to methylene blue and trimethoprim removal

2017 ◽  
Vol 14 (5) ◽  
pp. 267 ◽  
Author(s):  
Beatriz González ◽  
Raquel Trujillano ◽  
Miguel A. Vicente ◽  
Vicente Rives ◽  
Emerson H. de Faria ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Thermal Analyses ◽  
Nitrogen Adsorption ◽  
Human Consumption ◽  
New Materials ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ft Ir ◽  
Elemental Chemical Analysis ◽  
Ft Ir Spectroscopy

Environmental contextWater is an essential compound for life; however, several factors limit the amount available for human consumption. Every day, thousands of pollutants are discharged into drinking water. Here, new materials that are efficient as adsorbents and photocatalysts for pollutants are reported. AbstractMontmorillonite was treated with Ti-based solutions doped with various transition metal cations, leading after calcination at 500°C to new doped Ti-pillared montmorillonite solids. These solids were characterised by elemental chemical analysis, powder X-ray diffraction, Fourier-transform (FT)-IR spectroscopy, thermal analyses, nitrogen adsorption, acidity evaluation and electron microscopy. The performance of these solids in the degradation of methylene blue and the adsorption of trimethoprim was evaluated.

scholarly journals Synthesis, structural characterization and luminescence properties of 1-carboxymethyl-3-ethylimidazolium chloride

2018 ◽  
Vol 74 (6) ◽  
pp. 653-658 ◽  
Author(s):  
Denis Prodius ◽  
Magdalena Wilk-Kozubek ◽  
Anja-Verena Mudring
Keyword(s):  
Hydrogen Bonds ◽  
Thermal Analyses ◽  
Three Dimensional ◽  
Attenuated Total Reflectance ◽  
X Ray Diffraction ◽  
Imidazolium Chloride ◽  
Air Atmosphere ◽  
Ft Ir ◽  
Fourier Transform Ir ◽  
Ethylimidazolium Chloride

A microcrystalline carboxyl-functionalized imidazolium chloride, namely 1-carboxymethyl-3-ethylimidazolium chloride, C7H11N2O2 +·Cl−, has been synthesized and characterized by elemental analysis, attenuated total reflectance Fourier transform IR spectroscopy (ATR-FT-IR), single-crystal X-ray diffraction, thermal analysis (TGA/DSC), and photoluminescence spectroscopy. In the crystal structure, cations and anions are linked by C—H...Cl and C—H...O hydrogen bonds to create a helix along the [010] direction. Adjacent helical chains are further interconnected through O—H...Cl and C—H...O hydrogen bonds to form a (10\overline{1}) layer. Finally, neighboring layers are joined together via C—H...Cl contacts to generate a three-dimensional supramolecular architecture. Thermal analyses reveal that the compound melts at 449.7 K and is stable up to 560.0 K under a dynamic air atmosphere. Photoluminescence measurements show that the compound exhibits a blue fluorescence and a green phosphorescence associated with spin-allowed (1π←1π*) and spin-forbidden (1π←3π*) transitions, respectively. The average luminescence lifetime was determined to be 1.40 ns for the short-lived (1π←1π*) transition and 105 ms for the long-lived (1π←3π*) transition.

DyP5O14

2007 ◽  
Vol 63 (3) ◽  
pp. i89-i91 ◽  
Author(s):  
Fathia Chehimi-Moumen ◽  
Mokhtar Férid
Keyword(s):  
Single Crystal ◽  
Diffraction Analysis ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
Flux Method ◽  
X Ray ◽  
Atomic Arrangement ◽  
Twofold Axis ◽  
Dimensional Network

Single-crystal X-ray diffraction analysis has been performed on dysprosium ultraphosphate, DyP5O14, prepared by the flux method. The atomic arrangement is built up of layers of independent P8O24 rings perpendicular to the b axis interconnected by PO4 groups to form a three-dimensional network of PO4 tetrahedra. Two sites are located on the twofold axis for the Dy atoms, which have almost regular dodecahedral coordination.

Convenient Synthesis and Characterization of Star-Shaped Dendrimers: 2,4,6-Trisubstituted 1,3,5-Triazine Derivatives

2011 ◽  
Vol 396-398 ◽  
pp. 2476-2484
Author(s):  
Qi Meng ◽  
Gui Yong Wu ◽  
Ying Shao ◽  
Xiao Qiang Sun
Keyword(s):  
Network Architecture ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dimensional Network ◽  
Convenient Synthesis ◽  
Triazine Derivatives ◽  
Ft Ir ◽  
C Nmr

A serial of novel star-shaped 2,4,6-trisubstituted 1,3,5-triazine (s-triazine) dendrimers were synthesized via step-by-step nucleophilic substitution starting from 2,4,6-trichloro-1,3,5-triazine, and were characterized by1H,13C NMR, FT-IR and ESI-MS spectra. The crystal structures for 2b, 2d and 4c have been determined by X-ray diffraction analysis, which indicate that there are hydrogen bonding and short contact interactions existing in intermolecules result in forming three-dimensional network architecture. D NMR experiments demonstrate that symmetrical trialkylamino-s-triazine shows correlated rotations of its N(2-ethoxy-2-oxoethyl) groups, while unsymmetrical 2-R-4,6-bis(dialkylamino)-s-triazines display two non-equivalent N(2-ethoxy-2-oxoethyl) groups, issued from the restricted rotation about the created C(s-triazine)-N bonds, and was conformed by crystallographic data.

scholarly journals Crystal structure of 4-[(adamantan-1-yl)amino]naphthalene-1,2-dione

2019 ◽  
Vol 75 (1) ◽  
pp. 99-102
Author(s):  
Guy Lamoureux ◽  
Mónica Alvarado-Rojas ◽  
Leslie W. Pineda
Keyword(s):  
Crystal Structure ◽  
Single Crystal ◽  
Diffraction Analysis ◽  
Carbonyl Group ◽  
Title Compound ◽  
Three Dimensional ◽  
X Ray Diffraction ◽  
X Ray ◽  
Compound C ◽  
Dimensional Network

The title compound, C20H21NO2, an example of a stable 1,2-naphthoquinone, was determined by single-crystal X-ray diffraction analysis at 100 K. This structure illustrates steric buttressing of the adamantanyl group, forcing the N—H group into the coplanar aromatic C—H. The presence of strong delocalization between the planar N atom at the 4-position and the carbonyl group at the 2-position is indicated. In the crystal, C—H...O and C—H...π interactions link the molecules into a three-dimensional network.

Synthesis and characterization of Cu(II)-halide 1-methylimidazole complexes

2016 ◽  
Vol 71 (2) ◽  
pp. 105-112 ◽  
Author(s):  
Michael Hörmannsdorfer ◽  
Ulrike Kahl ◽  
Tom Nilges
Keyword(s):  
Mass Spectrometry ◽  
Ir Spectroscopy ◽  
Single Crystal ◽  
Thermal Analyses ◽  
Synthesis And Characterization ◽  
X Ray Diffraction ◽  
X Ray ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

AbstractThree new complexes of Cu(II) halides (Cl, Br) with 1-methylimidazole (MIm), [Cu(MIm)4]Br2 (1), [Cu(MIm)4Br]Br · H2O (2), and [Cu(MIm)6]Cl2 · 2H2O (3) have been synthesized in ethanol. Their crystal structures have been determined by single-crystal X-ray diffraction. FT-IR spectroscopy, mass spectrometry, and thermal analyses were applied to characterize the compounds.

scholarly journals Multidimensional Ln-Aminophthalate Photoluminescent Coordination Polymers

Materials ◽  
2021 ◽  
Vol 14 (7) ◽  
pp. 1786
Author(s):  
Carla Queirós ◽  
Chen Sun ◽  
Ana M. G. Silva ◽  
Baltazar de Castro ◽  
Juan Cabanillas-Gonzalez ◽  
...  
Keyword(s):  
Water Content ◽  
Coordination Polymers ◽  
Metal Ion ◽  
Low Cost ◽  
Microwave Assisted Synthesis ◽  
X Ray Diffraction ◽  
X Ray ◽  
Wide Range ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

The development of straightforward reproducible methods for the preparation of new photoluminescent coordination polymers (CPs) is an important goal in luminescence and chemical sensing fields. Isophthalic acid derivatives have been reported for a wide range of applications, and in addition to their relatively low cost, have encouraged its use in the preparation of novel lanthanide-based coordination polymers (LnCPs). Considering that the photoluminescent properties of these CPs are highly dependent on the existence of water molecules in the crystal structure, our research efforts are now focused on the preparation of CP with the lowest water content possible, while considering a green chemistry approach. One- and two-dimensional (1D and 2D) LnCPs were prepared from 5-aminoisophthalic acid and Sm3+/Tb3+ using hydrothermal and/or microwave-assisted synthesis. The unprecedented LnCPs were characterized by single-crystal X-ray diffraction (SCRXD), powder X-ray diffraction (PXRD), Fourier transform infrared (FT-IR) spectroscopy and scanning electron microscopy (SEM), and their photoluminescence (PL) properties were studied in the solid state, at room temperature, using the CPs as powders and encapsulated in poly(methyl methacrylate (PMMA) films, envisaging the potential preparation of devices for sensing. The materials revealed interesting PL properties that depend on the dimensionality, metal ion, co-ligand used and water content.

Hydrothermal synthesis, crystal structure and properties of a two-dimensional uranyl coordination polymer based on a flexible zwitterionic ligand

2018 ◽  
Vol 74 (3) ◽  
pp. 366-371 ◽  
Author(s):  
Wen Cui ◽  
Ruyu Wang ◽  
Xi Shu ◽  
Yu Fan ◽  
Yang Liu ◽  
...  
Keyword(s):  
Coordination Polymer ◽  
Hydrothermal Reaction ◽  
Two Dimensional ◽  
X Ray Diffraction ◽  
Uranyl Compounds ◽  
X Ray ◽  
Potential Applications ◽  
Ft Ir ◽  
Fuel Reprocessing ◽  
Ft Ir Spectroscopy

The interaction between the uranyl cation, (UO2)2+, and organic species is of interest due to the potential applications of the resulting compounds with regard to nuclear waste disposal and nuclear fuel reprocessing. The hydrothermal reaction of various uranyl compounds with flexible zwitterionic 1,1′-[1,4-phenylenebis(methylene)]bis(pyridin-1-ium-4-carboxylate) dihydrochloride (Bpmb·2HCl) in deionized water containing drops of H2SO4resulted in the formation of a novel two-dimensional uranyl coordination polymer, namely poly[tetraoxido{μ2-1,1′-[1,4-phenylenebis(methylene)]bis(pyridin-1-ium-4-carboxylate)}di-μ3-sulfato-diuranium(VI)], [(UO2)2(SO4)2(C20H16N2O4)]n, (1). Single-crystal X-ray diffraction reveals that this coordination polymer exhibits a layered arrangement and the (UO2)2+centre is coordinated by five equatorial O atoms. The structure was further characterized by FT–IR spectroscopy, powder X-ray diffraction (PXRD) and thermogravimetric analysis (TGA). The polymer shows high thermal stability up to 696 K. Furthermore, the photoluminescence properties of (1) has also been studied, showing it to exhibit a typical uranyl fluorescence.

scholarly journals The Bio-fabrication of Gold Nanoparticles (AuNPs) by Green Method and Study of its Electrochemical Applications

2020 ◽  
Vol 1 (4) ◽  
pp. 22-25
Author(s):  
Azwan Morni
Keyword(s):  
Gold Nanoparticles ◽  
Ir Spectroscopy ◽  
Face Centered Cubic ◽  
X Ray Diffraction ◽  
Green Method ◽  
Oh Groups ◽  
X Ray ◽  
Vis Spectroscopy ◽  
Ft Ir ◽  
Ft Ir Spectroscopy

This study reports a green method for the synthesis of gold nanoparticles (AuNPs) using the aqueous extract of Salix aegyptiaca extract. The effects of gold salt concentration, extract concentration and extract quantity were investigated on nanoparticles synthesis. Novel methods of ideally synthesizing AuNPs are thus thought that are formed at ambient temperatures, neutral pH, low costs and environmentally friendly fashion. AuNPs were characterized with different techniques such as UV–vis spectroscopy, FT-IR spectroscopy, X-ray diffraction, and TEM. FT-IR spectroscopy revealed that gold nanoparticles were functionalized with biomolecules that have primary carbonyl group, -OH groups and other stabilizing functional groups. TEM experiments showed that these nanoparticles are formed with various shapes and X-ray diffraction pattern showed high purity and face centered cubic structure of AuNPs. For electrochemical properties of AuNPs, a modified glassy carbon electrode using AuNPs (AuNPs/GCE) was investigated. The results show that electronic transmission rate between the modified electrode and [Fe (CN)6]3-/4- increased.

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