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29
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85034362464
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fact, the Huisgen-type [3 + 2] cycloaddition transition states of carbonyl ylides and alkynes have been known for more than 30 years
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In fact, the Huisgen-type [3 + 2] cycloaddition transition states of carbonyl ylides and alkynes have been known for more than 30 years.
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32
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85034349392
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3. To this, 1,2-dichloroethan (2 mL) was added through the glass syringe. The reaction mixture was first stirred for 10 min at 0 °C and then allowed to warm to room temperature. After completion of the reaction, the reaction mixture was decanted and the nanoparticles were thoroughly washed with 1–2 mL of 1,2-dichloroethane to be reused for the next time. The solvent thus decanted was evaporated and subjected to column chromatography to obtain pure compound 13
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3. To this, 1,2-dichloroethan (2 mL) was added through the glass syringe. The reaction mixture was first stirred for 10 min at 0 °C and then allowed to warm to room temperature. After completion of the reaction, the reaction mixture was decanted and the nanoparticles were thoroughly washed with 1–2 mL of 1,2-dichloroethane to be reused for the next time. The solvent thus decanted was evaporated and subjected to column chromatography to obtain pure compound 13.
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33
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85034320512
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+): 370.1964; found: 370.1960
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+): 370.1964; found: 370.1960.
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40
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85034367212
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For the SEM analysis, the gold nanoparticle film was coated with a 10 nm platinum layer using a Polaron scanning electron microscopy (SEM) sputter coating unit E-2500, before taking the image
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For the SEM analysis, the gold nanoparticle film was coated with a 10 nm platinum layer using a Polaron scanning electron microscopy (SEM) sputter coating unit E-2500, before taking the image.
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41
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85034336350
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Samples for TEM investigations were prepared by putting an aliquot of dichloromethane solution of gold nanoparticles onto an amorphous carbon substrate supported on a copper grid. The excess liquid was then wicked away with tissue, and the grid was allowed to dry at room temperature
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Samples for TEM investigations were prepared by putting an aliquot of dichloromethane solution of gold nanoparticles onto an amorphous carbon substrate supported on a copper grid. The excess liquid was then wicked away with tissue, and the grid was allowed to dry at room temperature.
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47
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85034337821
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151792
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T. L. Matthew B. G. John B. S. Jeffrey D. K. Gary L. Robert L. O. Daniel L. J. Deann H. K. Terrence US Pat., 151792, 2004.
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(2004)
US Pat.
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Matthew, T.L.1
John, B.G.2
Jeffrey, B.S.3
Gary, D.K.4
Robert, L.5
Daniel, L.O.6
Deann, L.J.7
Terrence, H.K.8
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