Sensing and photocatalytic properties of nanosized Cu(I)CN organotin supramolecular coordination polymer based on pyrazine

Abstract

Orange prismatic crystals of the supramolecular coordination polymer (SCP) ∞3[Cu(CN)2(Me3Sn)(Pyz)], SCP1, were synthesized using a self‐assembly method under ambient conditions. Nanosized 1 was obtained using the same molar ratio in water by ultrasonic irradiation. SCP1 was characterized using single‐crystal X‐ray diffraction, elemental analysis, thermal analysis and Fourier transform infrared spectroscopy. SCP1 and its nanosized 1 particles were also examined using powder X‐ay diffraction and scanning electron microscopy. The luminescence emission of SCP1 was studied as well as its use as a sensor for the detection of common organic solvents and metal ions. Also, the catalytic activities of nanosized 1 towards various organic dyes were investigated under ambient conditions, UV irradiation and ultrasonic irradiation. Nanosized 1 as a heterogeneous nanoparticle catalyst exhibits high catalytic activity for the degradation of eosin‐Y and acid blue dyes. The mechanism of degradation investigated using various scavenger techniques is proposed and discussed. The catalytic oxidation process is mainly caused by •OH radicals.

Host‐guest nanosized coordination complexes based on Ag‐isonicotinic acid‐H2O and Ni‐4,4′‐bipyridine‐aminobenzic acid‐H2O as potentially active anticancer and antimicrobial agents

“…The agar‐well diffusion method was employed for determination of antibacterial activities. [ 48–50 ] The artificial Streptomycin (1.2 μg/ml) was used as positive reference standard to determine the sensitivity of each microbial species to compare the relative percent of antibacterial activity. The minimum inhibitory concentrations (MIC) were achieved by half‐fold serial dilutions to prepare concentrations of 6, 12, 25, 50, and 100 mg/ml in distilled water; zero concentration was considered as a negative control.…”

Crystal Structure of AgSCN Coordination Polymers for Sensing of Iron (III) Ions, Nitrobenzene and Photocatalytic Activity Under Ultrasonic Irradiation

“…Crystal structure determination of SCP1 had been measured using a Kappa CCd Enraf Nonius FR 90 four circle goniometer with graphite monochromatic MoKa radiation {[λ MoKa] = 0.71073 Å} at 25± 2 o C. The methods used to solve the structure of 1 are performed as previously reported Rabie [4]. Structure solution, refinement by full-matrix least-squares techniques on F 2 and data out-put have been completed using SHELX-97 and SIR92…”

“…Such materials are assembled using different techniques giving variable and limitless structures with high surface area, tunable optical properties, perpetual porosity and high adsorption affinity [2,3]. SCPs showed a great efficiency as heterogeneous catalysts [4], chemical sensors [5,6], nanofluid additives [7], as well as their effective role in drug delivery [8], storage and separation [1,9]. The high porous nature and surface area enhance the catalytic ability of SCPs.…”

Structure and characterization of organotin bimetallic supramolecular coordination polymers based on copper cyanide building blocks and pyrazine or pyrazine‐2‐carboxylic acid as new promising anticancer agents

“…[3] The nonmolecular compounds in which the basic building blocks containing metal ions and pseudo halides, organic ligands and organometallic spacers assemble infinitely leading to multidimensional networks. [4][5][6] In this context, the field of SCP containing organotin moiety has recently wide interest due to their diverse range of applications ranging from all sorts of biological activity to industrial catalysts for value-creating technical processes. [7,8] Many organotin compounds have been reported to exhibit potent anticancer activity, [9][10][11] and the National Cancer Institute (NCI) has tested about 2000 tin-based compounds, the largest number ever tested among metal complexes.…”

“…[Cu (CN) 2 (Me 3 Sn)(pyz)], SCP1 were prepared according to the literature procedure. [6] The identity of SCP1 was checked by elemental analysis. This reaction was carried out to obtain an organotin compound containing Cu I and Pyz2-caH, however, a tin free blue coordination complex (CC2) was formed containing Cu II .…”