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174742-77-9

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174742-77-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 174742-77-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,4,7,4 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 174742-77:
(8*1)+(7*7)+(6*4)+(5*7)+(4*4)+(3*2)+(2*7)+(1*7)=159
159 % 10 = 9
So 174742-77-9 is a valid CAS Registry Number.

174742-77-9Downstream Products

174742-77-9Relevant articles and documents

Reactions of cationic iron P-coordinated (diphenylphosphino) alkynes with dicobalt octacarbonyl

Louattani, Elmostafa,Suades, Joan,Alvarez-Larena, Angel,Piniella, Joan F.,Germain, Gabriel

, p. 121 - 127 (1996)

Reaction of the P-coordinated transition metal complexes [(Fp)Ph2PC≡CR][BF4] (R = H, CH3, Ph, p-tolyl; Fp = CpFe(CO)2) with cobalt octacarbonyl at room temperature affords the cationic heterometallic complexes [(Fp)Ph2PC≡CR{Co2(CO)6}][BF4] (1-4) in high yields. A single-crystal X-ray structural analysis of 3 showed that the hexacarbonyldicobalt fragment is π-bonded to the alkynyl group of the P-coordinated (diphenylphosphino)alkyne without significant interaction between the iron and cobalt fragments. Spectroscopic data for 1-4 and structural data for 3 suggest that the positive charge is mainly located on the iron fragment.

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