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Encapsulation of dopamine within SU-101: insights by computational chemistry

Erika Medel1, Juan L Obeso2,3, Camilo Serrano-Fuentes2

  • 1Departamento de Química, División de Ciencias Básicas e Ingeniería, Universidad Autónoma Metropolitana-Iztapalapa, San Rafael Atlixco 186, Col. Vicentina, Iztapalapa, AP Postal 55-534, C.P. 09340, Ciudad de Mexico, Mexico. rvargas@izt.uam.mx.

Chemical Communications (Cambridge, England)
|June 22, 2023
PubMed

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In an NMR sample, precise measurement of the absolute absorption frequencies of nuclei is difficult. A standard internal reference compound is added, and the frequency difference between the reference signal and sample signals is measured.
The internal reference compound generally used in NMR spectroscopy is tetramethylsilane (TMS). TMS is preferred because it is chemically inert, soluble in NMR solvents, and easily removable. Also, the highly shielded methyl protons in TMS yield an intense...
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