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1621060-84-1

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1621060-84-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1621060-84-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,6,2,1,0,6 and 0 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1621060-84:
(9*1)+(8*6)+(7*2)+(6*1)+(5*0)+(4*6)+(3*0)+(2*8)+(1*4)=121
121 % 10 = 1
So 1621060-84-1 is a valid CAS Registry Number.

1621060-84-1Downstream Products

1621060-84-1Relevant articles and documents

Synthesis and characterization of a main-chain donor-acceptor type low-bandgap polymer by post-functionalization of a poly(arylene ethynylene)

Huang, Wenyi

, p. 42 - 48 (2014)

I report a facile synthetic route for synthesizing a main-chain donor-acceptor type polymer containing strong electron donating dialkylamino groups and strong electron accepting 1,1,4,4-tetracyanobuta-1,3-diene (TCBD) units. To accomplish this, an electron donating monomer 4,6-diethynyl-N,N,N,N- tetrahexylbenzene-1,3-diamine was successfully synthesized by converting two carbaldehyde groups in the corresponding monomer into acetylene groups using lithium trimethylsilyldiazomethane via Colvin rearrangement. This electron donating monomer was then polymerized with a carbonyl-activated diiodide monomer to afford an electron-donating π-conjugated precursor polymer with a reasonably high molecular weight, which was further reacted with TCNE via cycloaddition/retroelectrocyclization reaction under mild conditions to afford the target polymer with a low bandgap energy (Egopt=1.40eV and EgCV=1.10eV) arising from strong intramolecular charge-transfer interactions between electron donors and acceptors in the polymer.

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