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221451-92-9

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221451-92-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 221451-92-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,2,1,4,5 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 221451-92:
(8*2)+(7*2)+(6*1)+(5*4)+(4*5)+(3*1)+(2*9)+(1*2)=99
99 % 10 = 9
So 221451-92-9 is a valid CAS Registry Number.

221451-92-9Downstream Products

221451-92-9Relevant articles and documents

B-frame-supported bimetallics. Isoelectronic arachno-structured [(PMe2Ph)4Pd2B8H10] and closo-structured [(PMe3)4(CO)2Ir2B8H 8]

Bould, Jonathan,Cooke, Paul A.,Doerfler, Udo,Kennedy, John D.,Barton, Lawrence,Rath, Nigam P.,Thornton-Pett, Mark

, p. 290 - 295 (1999)

Reaction of [IrCl(CO)(PMe3)2] with [NEt4][nido-B9H12] gives the ten-vertex eight-boron cluster species [(PMe3)4(CO)2Ir2B8H 8]. This formally has a closo cluster electron count compatible with its closo structure. By contrast, ten-vertex eight-boron [(PMe2Ph)4Pd2B8H10], isolated from [4-(NH2Ph)-arachno-B9H13] and [PdCl2(PMe2Ph)2], has a closo electron count but an arachno structure. The origins of this apparent anomaly are briefly addressed and enunciated.

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