Crystal structure and fungitoxicity of aquatributyltin <i>N</i>‐phthaloylglycinate

Ng, Seik Weng; Kuthubutheen, A.J.; Das, V. G. Kumar; Linden, Anthony; Tiekink, Edward R. T.

doi:10.1002/aoc.590080108

Cited by 44 publications

(31 citation statements)

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“…Although organotin carboxylates frequently have di-or polymeric structures resulting from intermolecular bridging by carbonyl oxygen atoms (16,23), the results of a previous study on similar bicycloazastannoxides, including the crystal and molecular structure of ing nonbridging carbonyl groups in the compounds Ph3SnC1:2HOC6H,CH=NCH2C02Et (25) and Bu2Sn-(OC6H,CH=NCH(i-Pr)COO), respectively (17). The determination of "(,%-N=CH) and 'J(s~-N-CH,) coupling constants in the proton NMR spectrum of the complex at 64.93 and 24.23 CIS, respectively, is strongly suggestive of the presence of an intramolecular Sn-N bond (17,26,27).…”

Section: Resultsmentioning

confidence: 99%

The synthesis, and molecular and crystal structure of diphenyl(2-oxidonaphthylmethyl-iminoacetato)tin(IV)

Smith¹,

Khoo²,

Goh³

et al. 1996

Can. J. Chem.

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Abstract:The new diorganotin complex ((C6HS),Sn(OC,,H6CH=NCH2COO)) was prepared and characterized by 'H NMR, IR, elemental analysis, and a single crystal X-ray diffraction study. The crystals are monoclinic, space group P2,la with a = 16.9167(9) A, b = 19.1276(16) A, c = 26.538(2) A, P = 100.534(6)", V = 8442.5(11) A3, Z = 16, and DCaIc = 1.574 Mg m-3. The final discrepancy factors are R, = 0.030, and Rw = 0.02 1 for 6524 significant reflections. The tin atom has a distorted trigonal bipyramidal coordination, with no short intermolecular contacts. The two axial Sn-0 bonds of 2.12 A and 2.09 A and the equatorial Sn-N bond of 2.14 8, are among the shortest found in related complexes.Key words: diorganotin(IV), bicycloazastannoxide, trigonal bipyramidal, antitumour.

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Section: Resultsmentioning

confidence: 99%

The synthesis, and molecular and crystal structure of diphenyl(2-oxidonaphthylmethyl-iminoacetato)tin(IV)

Smith¹,

Khoo²,

Goh³

et al. 1996

Can. J. Chem.

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“…This`anomalous' behaviour of Ph 3 SnCl could be occasioned by the presence on the column of a larger number of residual silanol groups, which can interact with the phenyltins, particularly so with Ph 3 SnCl, which has the strongest Lewis acidity. 21,22 With the mBondapak C 18 and Nova-Pak C 18 columns, all the triphenyltins co-eluted as a single peak (Fig. 1A and B), irrespective of the composition of the binary mobile phase, although here again peak tailing was most pronounced when the mobile phase was exclusively acetonitrile.…”

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confidence: 87%

Speciation of phenyltin(IV) compounds using high‐performance liquid chromatography: Part 1. The direct analysis of mixed standard solutions of tetraphenyltin, triphenyltin chloride, triphenyltin hydroxide and triphenyltin acetate

Lal

Tan

Tioh

et al. 2002

Applied Organom Chemis

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A rapid speciation high‐performance liquid chromatography (HPLC) method has been developed for the simultaneous determination of phenyltin compounds. The commercially important products of triphenyltin‐chloride, ‐acetate, ‐hydroxide and tetraphenyltin were separated by reversed‐phase HPLC on a Waters Spherisorb S5W ODS‐2 (octadecylsilica) column using an isocratic mixture of 90:10 (v/v) acetonitrile:water as the mobile phase at a flow rate of 1 ml min−1. The phenyltin compounds were detected by UV detection at 254 nm and the total elution time is 8 min. The elution order is triphenyltin‐chloride, ‐acetate, ‐hydroxide and tetraphenyltin. Detection limits were 0.01 ppm for each of the triphenyltin compounds and 0.02 ppm for tetraphenyltin. Spiked water samples containing the three biocidal triphenyltin compounds could also be analysed simultaneously by the above method without the need for any prior derivatization, following extraction with toluene. The versatility of the method in sensing substituent group variations on the phenyl ring was also demonstrated by the successful resolution of the hydroxides, tris(p‐chlorophenyl)tin hydroxide, diphenyl(p‐chlorophenyl)tin hydroxide and triphenyltin hydroxide. Copyright © 2002 John Wiley & Sons, Ltd.

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“…Although, they are useful intermediates in the fabrication of various aforementioned materials, they also act as common environmental pollutants because of their toxicity and resistance to microbial degradation [3,4]. For these reasons, nitrophenols are considered as a priority pollutant by the Environmental Protection Agency (EPA) of USA, and its concentration in natural waters is restricted to less than 10 mg/L [5,6].…”

Section: Introductionmentioning

confidence: 99%

Nickel nanoparticles decorated on electrospun polycaprolactone/chitosan nanofibers as flexible, highly active and reusable nanocatalyst in the reduction of nitrophenols under mild conditions

Karakaş

Çelebioğlu

Çelebı

et al. 2017

Applied Catalysis B: Environmental

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a b s t r a c tToday, the reduction of nitro aromatics stands a major challenge because of the pollutant and detrimental nature of these compounds. In the present study, we show that nickel(0) nanoparticles (Ni-NP) decorated on electrospun polymeric (polycaprolactone(PCL)/chitosan) nanofibers (Ni-NP/ENF) effectively catalyze the reduction of various nitrophenols (2-nitrophenol, 2,4-dinitrophenol, 2,4,6-trinitrophenol) under mild conditions. Ni-NP/ENF nanocatalyst was reproducibly prepared by deposition-reduction technique. The detailed characterization of these Ni-NP/ENF based nanocatalyst have been performed by using various spectroscopic tools including ICP-OES, P-XRD, XPS, SEM, BFTEM, HRTEM and BFTEM-EDX techniques. The results revealed the formation of well-dispersed nickel(0) NP (d mean = 2.71-2.93 nm) on the surface of electrospun polymeric nanofibers. The catalytic activity of the resulting Ni-NP/ENF was evaluated in the catalytic reduction of nitrophenols in aqueous solution in the presence of sodium borohydride (NaBH 4 ) as reducing agent, in which Ni-NP/ENF nanocatalyst has shown high activity (TOF = 46.2 mol 2-nitrophenol/mol Ni min; 48.2 mol 2,4-dinitrophenol/mol Ni min; 65.6 mol 2,4,6-trinitrophenol/mol Ni min). More importantly, due to the nanofibrous polymeric support, Ni-NP/ENF has shown a flexible characteristics along with reusability property. Testing the catalytic stability of Ni-NP/ENF revealed that this new catalytic material provides high reusability performance (at 3rd reuse 86% for 2-nitrophenol, 83% 2,4-dinitrophenol and 82% 2,4,6-trinitrophenol) for the reduction of nitrophenols even at room temperature and under air. The present study reported here also includes the compilation of wealthy kinetic data for Ni-NP/ENF catalyzed the reduction of nitrophenols in aqueous sodium borohydride solution depending on temperature and type of support material (Al 2 O 3 , C, SiO 2 ) to understand the effect of the support material and determine the activation parameters.

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Crystal structure and fungitoxicity of aquatributyltin N‐phthaloylglycinate

Cited by 44 publications

References 8 publications

The synthesis, and molecular and crystal structure of diphenyl(2-oxidonaphthylmethyl-iminoacetato)tin(IV)

The synthesis, and molecular and crystal structure of diphenyl(2-oxidonaphthylmethyl-iminoacetato)tin(IV)

Speciation of phenyltin(IV) compounds using high‐performance liquid chromatography: Part 1. The direct analysis of mixed standard solutions of tetraphenyltin, triphenyltin chloride, triphenyltin hydroxide and triphenyltin acetate

Nickel nanoparticles decorated on electrospun polycaprolactone/chitosan nanofibers as flexible, highly active and reusable nanocatalyst in the reduction of nitrophenols under mild conditions

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