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176981-55-8

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176981-55-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 176981-55-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,7,6,9,8 and 1 respectively; the second part has 2 digits, 5 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 176981-55:
(8*1)+(7*7)+(6*6)+(5*9)+(4*8)+(3*1)+(2*5)+(1*5)=188
188 % 10 = 8
So 176981-55-8 is a valid CAS Registry Number.

176981-55-8Downstream Products

176981-55-8Relevant articles and documents

Photoluminescent cyclometallated diplatinum(II,II) complexes: photophysical properties and crystal structures of ClO4 and 2 (HL=6-phenyl-2,2'-bipyridine, dppm=Ph2PCH2PPh2)

Cheung, Tsz-Chun,Cheung, Kung-Kai,Peng, Shie-Ming,Che, Chi-Ming

, p. 1645 - 1652 (2007/10/03)

The complexes 1, ClO4 2 and 2 3 (HL=6-phenyl-2,2'-bipyridine, dppm=Ph2PCH2PPh2) have been prepared and their spectroscopic and emission properties studied.Complex 3 shows a broad and intense absorption at 420-510 nm which is tentatively assigned to a metal-metal to ligand charge-transfer transition 1m.m.l.c.t. 1?*->?(?*)>, where d?* arises from the antisymmetric combination of the two platinum dz2 orbitals and ?(?*) from the symmetric combination of ?* orbitals of the two L ligands.All the complexes show luminescence in both the solid state and in solution.Both 1 and 2 display 3m.l.c.t. emission in solution at room temperature.The solid state emission of 1 and both the solid-state and fluid-state emission of 3 are assigned to the 3m.m.l.c.t. 3?*)*)> state.The crystal structure of 2 shows an intermolecular ?-? interaction between two L ligands as evidenced by the intermolecular ligand plane separation of 3.35 Angstroem.The solid-state emission of 2 is suggested to arise from a ?-? excimeric interaction of the L ligands.The crystal structure of 3 shows discrete 2+ units with an intramolecular Pt-Pt separation of 3.2703 Angstroem.

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