Hydrothermal generation, structural versatility and properties of metal(ii)-organic architectures driven by a pyridine-tricarboxylic acid

2019 ◽  
Vol 48 (23) ◽  
pp. 8361-8374 ◽  
Author(s):  
Na Zhao ◽  
Yu Li ◽  
Jin-Zhong Gu ◽  
Marina V. Kirillova ◽  
Alexander M. Kirillov
Keyword(s):  
Coordination Compounds ◽  
Structural Features ◽  
Tricarboxylic Acid ◽  
Photocatalytic Properties ◽  
Structural Versatility

A new series of metal(ii) coordination compounds driven by a pyridine-tricarboxylate block was generated, their structural features, magnetic, luminescent or photocatalytic properties were explored.

H-Bonded and metal(ii)–organic architectures assembled from an unexplored aromatic tricarboxylic acid: structural variety and functional properties

2020 ◽  
Vol 49 (21) ◽  
pp. 7197-7209 ◽  
Author(s):  
Jin-Zhong Gu ◽  
Shi-Mao Wan ◽  
Marina V. Kirillova ◽  
Alexander M. Kirillov
Keyword(s):  
Nicotinic Acid ◽  
Functional Properties ◽  
Building Block ◽  
Coordination Compounds ◽  
Structural Features ◽  
Tricarboxylic Acid ◽  
Structural Variety

2,5-Di(4-carboxylphenyl)nicotinic acid was explored as a novel building block for assembling nine metal(ii) coordination compounds; these were fully characterized and their structural features and functional properties were investigated.

A new series of Co, Ni, Zn, and Cd metal–organic architectures driven by an unsymmetrical biphenyl-tricarboxylic acid: hydrothermal assembly, structural features and properties

2018 ◽  
Vol 47 (22) ◽  
pp. 7431-7444 ◽  
Author(s):  
Jin-Zhong Gu ◽  
Yan Cai ◽  
Zi-Yue Qian ◽  
Min Wen ◽  
Zi-Fa Shi ◽  
...  
Keyword(s):  
Building Block ◽  
Coordination Compounds ◽  
Structural Features ◽  
Tricarboxylic Acid ◽  
Main Building ◽  
Metal Organic

Twelve new Zn(ii), Ni(ii), Co(ii), and Cd(ii) coordination compounds with diverse dimensionalities were assembled using 3′-nitro-biphenyl-2,4,4′-tricarboxylic acid as a main building block.

scholarly journals Copper(II) 2,2-Bis(Hydroxymethyl)Propionate Coordination Compounds with Hexamethylenetetramine: From Mononuclear Complex to One-Dimensional Coordination Polymer

Molecules ◽  
2021 ◽  
Vol 26 (11) ◽  
pp. 3358
Author(s):  
Sadaf Rauf ◽  
Agata Trzesowska-Kruszynska ◽  
Tomasz Sierański ◽  
Marcin Świątkowski
Keyword(s):  
Coordination Polymer ◽  
Coordination Compounds ◽  
Structural Diversity ◽  
Structural Features ◽  
Mononuclear Complex ◽  
Molar Ratio ◽  
One Dimensional ◽  
1D Coordination Polymer ◽  
Copper Coordination ◽  
Stretching Vibrations

Three new copper coordination compounds derived from 2,2-bis(hydroxymethyl)propionic acid (dmpa) and hexamethylenetetramine (hmta) were obtained and their crystal structures were determined. The stoichiometry of the reagents applied in the syntheses reflects the metal to ligand molar ratio in the formed solid products. Due to the multiple coordination modes of the used ligands, wide structural diversity was achieved among synthesized compounds, i.e., mononuclear [Cu(dmp)2(hmta)2(H2O)] (1), dinuclear [Cu2(dmp)4(hmta)2] (2), and 1D coordination polymer [Cu2(dmp)4(hmta)]n (3). Their supramolecular structures are governed by O—H•••O and O—H•••N hydrogen bonds. The compounds were characterized in terms of absorption (UV-Vis and IR) and thermal properties. The relationships between structural features and properties were discussed in detail. Owing to discrepancies in the coordination mode of a dmp ligand, bidentate chelating in 1, and bidentate bridging in 2 and 3, there is a noticeable change in the position of the bands corresponding to the stretching vibrations of the carboxylate group in the IR spectra. The differences in the structures of the compounds are also reflected in the nature and position of the UV-Vis absorption maxima, which are located at lower wavelengths for 1.

scholarly journals Optical, electrochemical and photocatalytic properties of cobalt doped CsPbCl3 nanostructures: a one-pot synthesis approach

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Aadil Ahmad Bhat ◽  
Shakeel Ahmad Khandy ◽  
Ishtihadah Islam ◽  
Radha Tomar
Keyword(s):  
Optical Properties ◽  
Visible Light ◽  
Active Material ◽  
Blue Emission ◽  
Structural Features ◽  
Ion Concentration ◽  
Photocatalytic Properties ◽  
Charge Storage ◽  
Cobalt Doping ◽  
One Pot

AbstractThe present manuscript aims at the synthesis of cesium based halide perovskite nanostructures and the effect of cobalt doping on the structural, optical, lumnisent, charge storage and photocatalytic properties. In a very first attempt, we report the solvothermal synthesis of Co doped CsPbCl3 nanostructures under subcritical conditions. The structural features were demonstrated by X-ray diffraction (XRD) Surface morphology determined cubic shape of the synthesized particles. Doping is an excellent way to modify the properties of host material in particular to the electronic structure or optical properties. Incorporation of Co2+ ions in the perovskite structure tunes the optical properties of the nanostructures making this perovskite a visible light active material (Eg = 1.6 eV). This modification in the optical behaviour is the result of size effect, the crystallite size of the doped nanostructures increases with cobalt doping concentration. Photolumniscance (PL) study indicated that CsPbCl3 exhibited Blue emission. Thermogravametric analysis (TGA) revealed that the nanostructures are quite stable at elavated temperatures. The electrochemical performance depicts the pseudocapacative nature of the synthesized nanostructures and can used for charge storage devices. The charge storage capability showed direct proportionality with cobalt ion concentration. And Finally the photocatalytic performance of synthesized material shows superior catalytic ability degrading 90% of methylene blue (MB) dye in 180 min under visible light conditions.

STRUCTURAL FEATURES, COMPUTATIONAL STUDIES AND BIOLOGICAL ANALYSIS: SCHIFF’S BASE LIGAND AND ITS COORDINATION COMPOUNDS

INDIAN DRUGS ◽  
2021 ◽  
Vol 58 (07) ◽  
pp. 22-31
Author(s):  
Seema Gautam ◽  
Sulekh Chandra ◽  
Jugmendra Singh ◽  
Navneet Manav ◽  
Vinod K Paliwal ◽  
...  
Keyword(s):  
Metal Ions ◽  
Coordination Compounds ◽  
Computational Study ◽  
Inhibition Zone ◽  
Antibacterial Activities ◽  
Structural Features ◽  
Schiff’S Base ◽  
H Nmr ◽  
Diffusion Technique ◽  
Elemental Analyses

Structure and biological application based analysis has been carried out for Schiff’s base ligand containing nitrogen and sulphur donor atoms and also for a series of its coordination compounds. Ligand benzil-bis(5-amino-1,3,4-thiadiazole-2-thiol) (L) has been prepared and structural features of ligand investigated by elemental analyses, IR, 1 H-NMR, mass spectra and molecular modeling studies. The chemical reaction of the prepared ligand with metal ions afforded mononuclear coordination compounds of Mn(II) and Co(II) metal ions. The characterization of the coordination compounds is being based on the techniques i.e. elemental analysis, infra-red, UV-visible as well as melting point, molar conductivity and magnetic moment measurement. A computational study has been done to understand the miscellaneous coordination modes of ligand to metal ions. Characterization result shows that coordination compounds exhibit a six coordinated geometrical arrangement i.e. octahedral geometry. The biological inhibition zone (antifungal and antibacterial activities) of synthesized compounds, i.e. ligand and its coordination compounds, has been monitored using well diffusion technique

Photocatalytic Properties of ZnO and Ag Doped ZnO Thin Films

2014 ◽  
Vol 685 ◽  
pp. 3-6
Author(s):  
Ying Lian Wang ◽  
Jun Yao Ye
Keyword(s):  
Thin Films ◽  
Annealing Temperature ◽  
Sol Gel ◽  
Structural Features ◽  
Photocatalytic Properties ◽  
Zno Thin Films ◽  
Molar Ratio ◽  
Zno Films ◽  
Doped Zno ◽  
Excellent Adhesion

Pure ZnO thin films and Ag doped ZnO thin films were prepared on quartz substrates by sol-gel process. Structural features and UV absorption spectrum have been studied by XRD and UV-Vis-Nir scanning spectrophotometer. Taking phenol as pollutants, further study of the effect of different annealing temperature and Ag dopant amount of ZnO films on photocatalytic properties was carried out. The results showed that, the optimal annealing temperature on photocatalytic degradation of phenol in this experiment was 300 °C, the best molar ratio of ZnO and Ag was 30:1, which was better than pure ZnO film greatly. Excellent adhesion, recyclable and efficient degradation Ag doped ZnO thin films were found in this experiment.

Structural features of biologically active coordination compounds of vanillinsemicarbazone

1985 ◽  
Vol 10 (3) ◽  
pp. 94-96 ◽  
Author(s):  
Kuntebommanahalli N. Thimmaiah ◽  
Winston D. Lloyd ◽  
Gujjarahalli T. Chandrappa
Keyword(s):  
Coordination Compounds ◽  
Structural Features ◽  
Biologically Active

Naturally Occurring and Synthetic Mesoporous Nanosilica: Multimodal Applications in Frontier Areas of Science

2019 ◽  
Vol 18 (05) ◽  
pp. 1850027
Author(s):  
Sutanuka Mitra ◽  
Rajesh Kumar ◽  
Pradip Roy ◽  
Satakshi Basu ◽  
Samarendra Barik ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Structural Features ◽  
Cutting Edge ◽  
Present Review ◽  
Research Progress ◽  
Biological Production ◽  
Naturally Occurring ◽  
Structural Versatility

Mesoporous silica nanoparticles (MSNs) have gained attention worldwide due to their structural versatility for diverse applications in a number of frontier areas of sciences. The intrinsic chemical, textural and structural features of MSNs allow fabricating versatile multifunctional nanosystems. The present review provides an overview of the research progress in artificial and biological production of MSNs, their properties and various applications in cutting edge areas of sciences.

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