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216981-11-2

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216981-11-2 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 216981-11-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,6,9,8 and 1 respectively; the second part has 2 digits, 1 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 216981-11:
(8*2)+(7*1)+(6*6)+(5*9)+(4*8)+(3*1)+(2*1)+(1*1)=142
142 % 10 = 2
So 216981-11-2 is a valid CAS Registry Number.

216981-11-2Downstream Products

216981-11-2Relevant articles and documents

Low coordinate germanium and tin compounds (ArO)2M=E and (ArO)2M=M′Ln M=Ge, Sn; E=S, Se, -NSiMe3 M′=Cr, W, Fe, Pt [Ar=2,4,6-tris((dimethylamino)methyl)phenyl-]

Barrau, Jacques,Rima, Ghassoub,El Amraoui, Tajani

, p. 163 - 174 (2007/10/03)

The reactions of the divalent species (ArO)2M (Ar=2,4,6-[(CH3)2NCH2]3C 6H2; M=Ge, Sn) with either Me3SiN3, elemental S8, Se or transition metal complexes M′(CO)n+1 (M′=Fe, n=4; M′=Cr, W; n=5) (Ph3P)2Pt·C2H4 have resulted in the isolation of either the new stable formal metallanimines (ArO)2M=N-SiMe3, germanethione, -selone (ArO)2Ge=E (E=S, Se) (the expected formations of the stannanethione and -selone were not observed), or the (ArO)2M=M′(CO)n, (ArO)2M=Pt(PPh3)2 complexes, respectively. The direct oxidation of the (ArO)2M species with various oxidizing agents led to the formation of the corresponding metalloxanes [(ArO)2M-O-]2. All of the chalcogenido- and transition metal-metal 14 complexes have been physicochemically and chemically characterized. The reactions of the (ArO)2Ge=E (E=S, Se) compounds with 3,5-di-tert-butyl-1,2-benzoquinone produced, by extrusion of sulfur or selenium, the dioxametalloles corresponding to the formal addition of the divalent species (ArO)2M to the benzoquinone. A substitution reaction of chalcogen (S/Se) has been observed permitting to go from germaneselone to germanethione.

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