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Isocyanide and Phosphine Oxide Coordination in Binuclear Chromium Pacman Complexes.

ABSTRACT: The new binuclear chromium Pacman complex [Cr₂(L)] of the Schiff base pyrrole macrocycle H₄L has been synthesized and structurally characterized. Addition of isocyanide, C≡NR (R = xylyl, ^tBu), or triphenylphosphine oxide donors to [Cr₂(L)] gives contrasting chemistry with the formation of the new coordination compounds [Cr₂(μ-CNR)(L)], in which the isocyanides bridge the two Cr(II) centers, and [Cr₂(OPPh₃)₂(L)], a Cr(II) phosphine oxide adduct with the ligands exogenous to the cleft.

SUBMITTER: Stevens CJ

PROVIDER: S-EPMC3905932 | biostudies-literature | 2013 Dec

REPOSITORIES: biostudies-literature

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Isocyanide and Phosphine Oxide Coordination in Binuclear Chromium Pacman Complexes.

Stevens Charlotte J CJ Nichol Gary S GS Arnold Polly L PL Love Jason B JB

Organometallics 20131113 23

The new binuclear chromium Pacman complex [Cr2(L)] of the Schiff base pyrrole macrocycle H4L has been synthesized and structurally characterized. Addition of isocyanide, C≡NR (R = xylyl, tBu), or triphenylphosphine oxide donors to [Cr2(L)] gives contrasting chemistry with the formation of the new coordination compounds [Cr2(μ-CNR)(L)], in which the isocyanides bridge the two Cr(II) centers, and [Cr2(OPPh3)2(L ...[more]

PMID: 24489428

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