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207295-84-9

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207295-84-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 207295-84-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,0,7,2,9 and 5 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 207295-84:
(8*2)+(7*0)+(6*7)+(5*2)+(4*9)+(3*5)+(2*8)+(1*4)=139
139 % 10 = 9
So 207295-84-9 is a valid CAS Registry Number.

207295-84-9Downstream Products

207295-84-9Relevant articles and documents

Preparation and crystal structures of the mononuclear vanadium phenoxide complexes [VCl(OC6H3Pri2-2,6) 2(C4H8O)2] and [VO(OC6H3Pri2-2,6)3]: Procatalysts for ethylene polymerisation

Henderson, Richard A.,Hughes, David L.,Janas, Zofia,Richards, Raymond L.,Sobota, Piotr,Szafert, Stawomir

, p. 195 - 201 (2007/10/03)

The complexes [VCl(OC6H3Pri2-2,6) 2(thf)2] 1 (thf, tetrahydrofuran) and [VO(OC6H3Pri2-2,6)3] 2 have been prepared and structurally characterised. Compound 1 has a distorted trigonal bipyramidal structure with apical thf ligands [d(V-Ophenox) 1.865(2), d(V-Othf) 2.120(3) and d(V-Cl) 2.277(2) A]. It reacts with Li[SC6H2Me3-2,4,6] to give [V(SC6H2Me3-2,4,6)(OC6H 3Pri2-2,6)2(thf)2]. Compound 2, which has trigonal pyramidal geometry, is disordered about a 2-fold crystallographic axis [d(V=O) 1.564(4), d(V-Oav) 1.761(1) A]. Compounds 1 and 2 are pro-catalysts for the polymerisation of C2H4.

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