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173789-78-1

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173789-78-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 173789-78-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,3,7,8 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 173789-78:
(8*1)+(7*7)+(6*3)+(5*7)+(4*8)+(3*9)+(2*7)+(1*8)=191
191 % 10 = 1
So 173789-78-1 is a valid CAS Registry Number.

173789-78-1Downstream Products

173789-78-1Relevant articles and documents

Preparation of bis(phosphine)bis(selenocarboxylato)-nickel(II), -palladium(II) and -platinum(II) complexes and their crystal structure analysis

Kawahara, Yasuyuki,Kato, Shinzi,Kanda, Takahiro,Murai, Toshiaki,Miki, Kunio

, p. 79 - 86 (2007/10/03)

A series of bis(triorganophosphine)bis(selenocarboxylato)-nickel(II) 3, -palladium(II) 4 and -platinum(II) 5 complexes have been sythesised from the reaction of sodium selenocarboxylates 1 or O-silyl selenocarboxylates 2 with the corresponding bis(phosphine)metal dichloride in good to high yields and have been characterized by 1H, 13C, 31P and 77Se NMR spectroscopy and elemental analysis.Additionally (M = Ni 3d, Pd 4d or Pt 5b) have been crystallographically characterized and reveal four-co-ordinate planar structures with each of the two selenocarboxylate and phosphine ligands lying trans.The carbon-oxygen bond lengths of the selenocarboxylate ligand of 3d, 4d and 5d show values typical of a carbon-oxygen double bond; co-ordination of the carbonyl oxygen to the metal is not observed.

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