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[Co(dibenzoylmethanato)2(H2O)2] is a chemical with a specific purpose. Lookchem provides you with multiple data and supplier information of this chemical.

53642-37-8

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53642-37-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53642-37-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,6,4 and 2 respectively; the second part has 2 digits, 3 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 53642-37:
(7*5)+(6*3)+(5*6)+(4*4)+(3*2)+(2*3)+(1*7)=118
118 % 10 = 8
So 53642-37-8 is a valid CAS Registry Number.

53642-37-8Upstream product

53642-37-8Relevant academic research and scientific papers

Inversion at Selenium in the Bis(β-diketonato)cobalt(III) Ion

Nakajima, Kiyohiko,Kojima, Masaaki,Fujita, Junnosuke

, p. 3505 - 3510 (1986)

The selenide (selenoether) complexes, + (β-dik: acac=2,4-pentanedionate, Clacac=3-chloro-2,4-pentanedionate, Meacac=3-methyl-2,4-pentanedionate, and dbme=1,3-diphenyl-1,3-propanedionate) were prepared and separated into two racemic pairs of the diastereomers (Δ(R)Λ(S) and Δ(S)Λ(R) isomers).The complexes in solution epimerize by inversion at the selenium atom, and the rates were followed by high-performance liquid chromatography in the temperature range of 30.3-55.0 deg C in 0.05 mol dm-3 Na2SO4 (acac, Clacac, and Meacac complexes) or in methanol (dbme complex).The ΔG%25 deg C values for inversion of + decrease in the order β-dik=Clacac(108)>acac(106)>Dbme(104)>Meacac(100 kJ mol-1), and the decrease in ΔG%25 deg C comes mainly from a decrease in ΔH%.The effect of substituents is electronic and the Hammett relationship was found to hold for the inversion rates of the acac, Clacac, and Meacac complexes.

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