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1040749-50-5

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1040749-50-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1040749-50-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,4,0,7,4 and 9 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1040749-50:
(9*1)+(8*0)+(7*4)+(6*0)+(5*7)+(4*4)+(3*9)+(2*5)+(1*0)=125
125 % 10 = 5
So 1040749-50-5 is a valid CAS Registry Number.

1040749-50-5Relevant articles and documents

Pirouetting copper(I)-assembled pseudo-rotaxanes: Strong influence of the axle structure on the motion rate

Collin, Jean-Paul,Durola, Fabien,Mobian, Pierre,Sauvage, Jean-Pierre

, p. 2420 - 2425 (2008/02/10)

Based on the gathering and threading effect of copper(I), three different pseudo-rotaxanes have been prepared and characterised in solution. They consist of the same two-chelate ring and various coordinating fragments threaded through the ring. The ring-incorporated chelates are a 2,2′,6′,6″- terpyridine (terpy) unit and a 2,9-diphenyl-1,10-phenanthroline (dpp) motif. The threaded chelates are a 2,9-bis(p-anisyl)-1,10-phenanthroline (dap), a 6,6′-bis(p-anisyl)-2,2′-bipyridine (dabipy) or a 8,8′-diphenyl-3,3′-biisoquinoline (dpbiiq) derivative. Using electrochemical techniques, the pirouetting motions of the axle within the ring through which it is threaded have been investigated. In dichloromethane/ acetonitrile, a strong dependence of the motion rate on the structure of the threaded chelate has been observed, evidencing that rigidity of the thread-contained chelate and steric hindrance lead to slow moving molecular machines. Pirouetting is the main dynamic process observed but unthreading of the string-like organic component represents another minor electrochemically induced reaction. Wiley-VCH Verlag GmbH & Co. KGaA, 2007.

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