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21459-27-8

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21459-27-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21459-27-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,4,5 and 9 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 21459-27:
(7*2)+(6*1)+(5*4)+(4*5)+(3*9)+(2*2)+(1*7)=98
98 % 10 = 8
So 21459-27-8 is a valid CAS Registry Number.
InChI:InChI=1/2C6HF5S.Pb/c2*7-1-2(8)4(10)6(12)5(11)3(1)9;/h2*12H;/q;;+2/p-2

21459-27-8Relevant articles and documents

Stability and trans Influence in Fluorinated Gold(I) Coordination Compounds

Moreno-Alcántar, Guillermo,Hernández-Toledo, Hugo,Guevara-Vela, José Manuel,Rocha-Rinza, Tomás,Martín Pendás, ángel,Flores-álamo, Marcos,Torrens, Hugo

, p. 4413 - 4420 (2018)

We examined the Au–P and Au–X chemical bonding scenario throughout the series of compounds of the general formula [AuX(LP)] wherein LP is triphenylphosphine or a fluorinated phosphine [PPhF = P(C6H5)2(C6F5) 1, P(C6H5)(C6F5)2 2 and P(C6F5)3 3] and X is chloride or a fluorinated thiolate [SRF = SCF3 a, SCH2CF3 b, SC6F5 c, SC6F4(CF3)-4 d]. We found that the increase of the fluorination degree or the replacement of Cl– by a –SRF ligand decreases the stability of the compound. Furthermore, this substitution shifts the 31P-NMR signals to low field, which indicates differences in the electronegativity of the phosphorus due to the distinct trans influences of the Cl– and –SRF species. These effects correlate with the charge of the gold atom coordinated to phosphorus. Our investigation shows the high potential of fluorination as a strategy for the modulation of the properties of gold compounds, for example in catalysis, and the applicability of quantum chemical topology studies in the explanation of these features.

DIRECT ELECTROCHEMICAL SYNTHESIS OF METAL PENTAFLUOROTHIOPHENOLATES

Shreider, V. A.

, p. 1675 - 1679 (2007/10/02)

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