Nanoparticles of novel organotin(IV) complexes bearing phosphoric triamide ligands

Shariatinia‬, Zahra; Asadi, Ehsan; Tavasolinasab, Vahid; Gholivand, Khodayar

doi:10.3762/bjnano.4.11

Cited by 18 publications

(6 citation statements)

References 36 publications

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“…Over the past years, ultrasonic method has rapidly developed as procedure to fabrication of nano‐structured metal coordination compounds which can be a precursor for preparation of metal oxide nanostructures . It is notable that, reports on syntheses of nano‐structured phosphoramide coordination complexes are limited . In this work, nanorods of new diorganotin phosphonicdiamide, [Sn(CH 3 ) 2 Cl 2 (L) 2 ] {L = N,N′ ‐bis(cyclohexyl) phenyl phosphonicdiamide}, were synthesized under ultrasonic irradiation in three different concentrations of initial reagents.…”

Section: Introductionmentioning

confidence: 99%

Ultrasonic‐assisted synthesis and biological evaluation of a nano‐rod diorganotin phosphonic diamide: Precursor for the fabrication of SnP₂O₇ nano‐structure

Dorosti

Delfan

Khodadadi

2017

Applied Organom Chemis

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{L = C 6 H 5 (O)P(NHC 6 H 11 ) 2 } have been synthesized by sonochemical processes at different concentrations without any surfactant or capping agent. The structure and morphology of the prepared complex were investigated by using SEM-EDAX, XRD, DLS, UV-Vis and FT-IR spectroscopy. Nanoparticles with well-defined rod shapes and sizes in the range 30-40 nm have been obtained. Also bulk form of the titled complex was synthesized and characterized by 1 H, 13 C, 31 P, 119 Sn NMR, UV-Vis and FT-IR spectroscopy and compared with its nano-size. The thermal stabilities at bulk and nano-size scale have been studied by thermal gravimetric (TG) and differential thermal analysis (DTA). Further, SnP 2 O 7 nanoparticles were synthesized by direct calcination at 730°C under air atmosphere and characterized using XRD, SEM, and TEM. From XRD measurements, we determined the mean size of the crystallites about 27.4 nm. It is found that the size and morphology of the tin pyrophosphate nano-structures are dependent upon the particles size of precursor compound as well. Two different forms of metal coordination compound (1a, 1b) and the corresponding ligand (L) were screened for their antibacterial activity against the selected Gram-positive and Gramnegative bacteria, showing bactericidal activity for complexes 1a and 1b. In vitro cytotoxicity of compounds was studied against human carcinoma cell lines, A2780 (ovarian cancer) and PC-3 (prostate cancer). Results indicated that 1a and 1b possess relatively strong cytotoxic activity against cancer cells with IC 50 values ranging from 93.2 to 376.2 μM for two exposure time (24 and 48 h).

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Section: Introductionmentioning

confidence: 99%

Ultrasonic‐assisted synthesis and biological evaluation of a nano‐rod diorganotin phosphonic diamide: Precursor for the fabrication of SnP₂O₇ nano‐structure

Dorosti

Delfan

Khodadadi

2017

Applied Organom Chemis

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“…In these complexes, aromatic protons appear as a complex pattern in the region 7.18–8.12 ppm and the methyl protons directly attached to tin atom are observed as singlet in the region 0.94–1.02 ppm with well‐defined satellites. The value of coupling constant 2 J ( 119 Sn– 1 H) calculated from the tin satellite is found to be in the region 49 to 54.5 Hz . With the help of the Lockhart and Manders equation

normalθ ()(, normalC  normalS normaln  normalC) = 0.0161 true|^{2} J ()(, ^{119} normalS normaln -^{1} normalH) true|^{2} - 1.32 true|^{2} J ()(, ^{119} normalS normaln -^{1} normalH) | + 133.4

the CSnC bond angles can be calculated using 2 J ( 119 Sn– 1 H) values.…”

Section: Resultsmentioning

confidence: 98%

The structure–activity relationship of some hexacoordinated dimethyltin(IV) complexes of fluorinated β‐diketone/β‐diketones and sterically congested heterocyclic β‐diketones

Sharma

Jain

Saxena

2015

Applied Organom Chemis

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The study was focused on the structure-activity relationship of some newly synthesized hexacoordinated dimethyltin(IV) complexes of fluorinated β-diketone/β-diketones and sterically congested heterocyclic β-diketones. These complexes were screened for their antibacterial activity against a Gram-negative bacterium (Pseudomonas aeruginosa) and Gram-positive bacteria (Streptomyces griseus, Staphylococcus aureus, Bacillus subtilis) and the results were compared with those of a standard antibacterial drug. Some of the complexes were also screened for their antifungal activity against various fungi (Aspergillus niger, A. flavus, Trichoderma viride, Fusarium oxysporum) and were found to be active. These new hexacoordinated complexes of dimethyltin (IV) were generated by reactions of dimethyltin(IV) dichloride and sodium salts of fluorinated β-diketone/β-diketones and sterically congested heterocyclic β-diketones in 1:1:1 molar ratio in refluxing dry benzene. Plausible structures of these complexes were suggested with the aid of physicochemical and spectroscopic studies. 119 Sn NMR spectral data revealed the presence of a hexacoordinated tin centre in these dimethyltin(IV) complexes.

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“…Today, the ultrasonic procedure is widely used for the synthesis of nanoscaled chemical or biological compounds 32–34. The nanoparticles of compounds 1 – 9 were obtained by performing the synthesis in an ultrasonic bath.…”

Section: Resultsmentioning

confidence: 99%

Synthesis, Spectroscopy, X‐ray Crystallography, and DFT Computations of Nanosized Phosphazenes

Shariatinia‬

Moghadam

Maghsoudi

et al. 2015

Zeitschrift anorg allge chemie

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9)] were synthesized using ultrasonic method and characterized by 1 H, 13 C, 31 P NMR, FT-IR, fluorescence, as well as UV/Vis spectroscopy and additionally with XRD, FE-SEM, N 2 sorption, and elemental analysis. The 31 P NMR spectra of compounds 1-9 reveal the most up field shift δ( 31 P) for 9 at -11.45 ppm reflecting the most electron donation of 2-aminopyridinyl rings through resonance to the phosphorus atom. The 1 H, 13 C NMR spectra of 7 exhibit two sets of signals for the hydrogen and carbon atoms of its two isomers present in the solution state in 1:4 ratio. The FE-SEM micrographs illustrate that the nanoparticles of compounds 1-9 have spherical morphology and a size of 27-42 nm. From the XRD patterns, the crystal sizes were * Dr. Z. Shariatinia Fax: +98-2164542762 E-Mail: shariati@aut.ac.ir [a] 967 estimated to about 24-86 nm. The highest bandgap was measured for 3 (3.81 eV) whereas the smallest was measured for 8 (3.50 eV). The structures of two polymorphs of compound 5 (5, 5Ј) were determined by X-ray crystallography at 120 K. Both of these polymorphs are triclinic with P1 space group but 5 has a doubled unit cell volume and two symmetrically independent molecules (5a and 5b). In structures 5a and 5Ј, the phosphorus and all endocyclic atoms of two morpholinyl rings display disorder, whereas the molecule 5b does not show disorder. The strong intermolecular O-H···O hydrogen bonds plus weak intermolecular C-H···O and C-H···N interactions create three-dimensional polymers in the crystalline networks of 5 and 5Ј. The DFT computations illustrate that molecule 5b is more stable than 5a by -1.1062 and -0.9779 kcal·mol -1 at B3LYP and B3PW91 levels, respectively. The NBO calculations presented sp 3 d hybridization for phosphorus and sulfur atoms and sp 2 , sp 3 hybrids for the nitrogen and oxygen atoms.

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Nanoparticles of novel organotin(IV) complexes bearing phosphoric triamide ligands

Cited by 18 publications

References 36 publications

Ultrasonic‐assisted synthesis and biological evaluation of a nano‐rod diorganotin phosphonic diamide: Precursor for the fabrication of SnP₂O₇ nano‐structure

Ultrasonic‐assisted synthesis and biological evaluation of a nano‐rod diorganotin phosphonic diamide: Precursor for the fabrication of SnP₂O₇ nano‐structure

The structure–activity relationship of some hexacoordinated dimethyltin(IV) complexes of fluorinated β‐diketone/β‐diketones and sterically congested heterocyclic β‐diketones

Synthesis, Spectroscopy, X‐ray Crystallography, and DFT Computations of Nanosized Phosphazenes

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Nanoparticles of novel organotin(IV) complexes bearing phosphoric triamide ligands

Cited by 18 publications

References 36 publications

Ultrasonic‐assisted synthesis and biological evaluation of a nano‐rod diorganotin phosphonic diamide: Precursor for the fabrication of SnP2O7 nano‐structure

Ultrasonic‐assisted synthesis and biological evaluation of a nano‐rod diorganotin phosphonic diamide: Precursor for the fabrication of SnP2O7 nano‐structure

The structure–activity relationship of some hexacoordinated dimethyltin(IV) complexes of fluorinated β‐diketone/β‐diketones and sterically congested heterocyclic β‐diketones

Synthesis, Spectroscopy, X‐ray Crystallography, and DFT Computations of Nanosized Phosphazenes

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Ultrasonic‐assisted synthesis and biological evaluation of a nano‐rod diorganotin phosphonic diamide: Precursor for the fabrication of SnP₂O₇ nano‐structure

Ultrasonic‐assisted synthesis and biological evaluation of a nano‐rod diorganotin phosphonic diamide: Precursor for the fabrication of SnP₂O₇ nano‐structure