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Tris(O-4-methylphenyl)phosphoroselenoate is a complex organophosphorus compound with the chemical formula C18H15O3PSe. It is characterized by a central phosphorus atom bonded to three O-4-methylphenyl groups and a selenoate (SeO3) group. tris(O-4-methylphenyl)phosphoroselenoate is of interest in the field of organophosphorus chemistry due to its unique structure and potential applications in various chemical reactions. It may also be relevant in the study of selenium-containing compounds, which have been explored for their biological and medicinal properties. The compound's stability, reactivity, and potential uses are areas that could be further investigated in chemical research.

28049-19-6

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28049-19-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 28049-19-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,0,4 and 9 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 28049-19:
(7*2)+(6*8)+(5*0)+(4*4)+(3*9)+(2*1)+(1*9)=116
116 % 10 = 6
So 28049-19-6 is a valid CAS Registry Number.

28049-19-6Downstream Products

28049-19-6Relevant academic research and scientific papers

Substituent effects on 31P NMR chemical shifts and 1J P-Se of triarylselenophosphates

Dominguez, Zaira,Hernandez, Javier,Silva-Gutierrez, Lorena,Salas-Reyes, Magali,Sanchez, Mario,Merino, Gabriel

experimental part, p. 772 - 784 (2010/07/05)

The effect of electron-withdrawing (EW) and electron-releasing (ER) substituents on the 31P NMR chemical shifts and the structural parameters of a series of tris-(p-X-aryl)selenophosphates is reported in this article. Similarly to O-aryl phosphates and O-aryl thiophosphates, EW groups attached to aromatic rings induce a shielding effect on the 31P NMR signal. After a detailed experimental and theoretical analysis, we confirmed that the selenium atom is the main part responsible for the charge density transfer toward phosphorus through a back-bonding effect. The obtained 1JP-Se values for the complete series agree with this observation. Supplemental materials are available for this article. Go to the publisher's online edition of Phosphorus, Sulfur, and Silicon and the Related Elements to view the free supplemental file.

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