New near-infrared spectrophotometry for d8 metal ions, NiII and PtII, with 2,2′-dithiobis(1-aminonaphthalene) in aqueous micellar solutions

Yukiko Terazono, Hitoshi Hoshino, Takao Yotsuyanagi

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2 Citations (Scopus)


1-Amino-2-naphthalenethiolate ion (C10H6NH2S-), produced from 2,2′-dithiobis(1-aminonaphthalene) (DTAN), forms 1:2 chelates with d8 metal ions (NiII and PtII) in aqueous PONPE 20 micellar solutions, and then subsequent oxidation of the chelates with O2 yield new NIR-absorbing chelates [MII(C10H6NHS ·)2]0. The remarkable NIR absorption properties are as follows: for PtII (794 nm) ε = 5.03 × 104 M-1 cm 1; for NiII (884 nm) ε = 4.73 × 104 M-1 cm-1.

Original languageEnglish
Pages (from-to)1251-1252
Number of pages2
JournalChemistry Letters
Issue number11
Publication statusPublished - 1999 Jan 1

ASJC Scopus subject areas

  • Chemistry(all)


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