Syntheses and characterization of the metal maleonitrilediselenolates [K([2.2.2]-cryptand)]2[M(Se2c2 (CN)2)2] (M = Ni, Pd, Pt) and [Ni(dmf)5Cl]2[Ni(Se2C2 (CN)2)2]

C. C. McLauchlan, S. D. Robowski, J. A. Ibers*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations

Abstract

Reaction of KNH2, K2Se, Se, [2.2.2]-cryptand, and a metal source yields the metal bis(maleonitrilediselenolates) [K([2.2.2]-cryptand)]2[M(Se2C2 (CN)2)2] (M = Ni, 1; Pd, 2, Pt, 3). These compounds are isostructural and crystallize with four formula units in the monoclinic space group P21/c in cells at T = 153 K with parameters (a (Å), b (Å) c (Å), β (deg), V (Å3)) of 12.220(1), 15.860(2), 15.306(1), 107.64(2), 2827(1) for 1; 12.291(1), 15.669(1), 15.548(1), 108.55(1), 2839(1) for 2; and 12.292(3), 15.671(3), 15.569(3), 108.59(3), 2842(1) for 3. The cation of 1 has been substituted to yield [Ni(dmf)5Cl]2[Ni(Se2C2 (CN)2)2] (4). [Ni(dmf)5Cl]2[Ni(Se2C2 (CN)2)2] (4) crystallizes with one molecule in the triclinic space group P1̄ in a cell with parameters (T = 153 K) of a = 8.842(2) Å, b = 13.161(3) Å, c = 13.831(3) Å, α = 110.08(3)°, β = 95.23(3)°, γ = 93.72(3)°, V = 1484(1) Å3. The electronic absorption and infrared spectra are characteristic of metal maleonitrilediselenolates. Cyclic voltammetry shows that the maleonitrilediselenolate (mns) complexes are more easily oxidized than their maleonitriledithiolate (mnt) analogues.

Original languageEnglish (US)
Pages (from-to)1372-1375
Number of pages4
JournalInorganic chemistry
Volume40
Issue number6
DOIs
StatePublished - Mar 12 2001

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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