bis(chrysenequinonemonooximato)(chrysenequinonemonoxime)chromium(III)nitrate | 146845-61-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 芴
• 英文名称: bis(chrysenequinonemonooximato)(chrysenequinonemonoxime)chromium(III)nitrate
• CAS: 146845-61-6
• 化学式: C₅₄H₃₁CrN₃O₆*NO₃
• 分子量: 931.858
• InChiKey: TZTCGNQAUOFORF-RKMYZACTSA-L

反应信息

• 作为产物：
  描述：

  chromium(III) nitrate 、 chrysene quinone monoxime 以 乙醇 为溶剂， 以83%的产率得到bis(chrysenequinonemonooximato)(chrysenequinonemonoxime)chromium(III)nitrate
  参考文献：
  名称：

  The synthesis, spectral and magnetic properties of the complexes of chromium with chrysenequinone and chrysenequinonemonoxime

  摘要：

  Reactions of the chromium hexacarbonyl with chrysenequinone and chrysenequinonemonoxime gave the tris(chrysenesemiquinone)chromium(III), Cr(ChrySQ)3, and tris(chrysenesemiquinonemonoxime)chromium(III), Cr(ChrySQM)3, complexes. From the stretching frequencies of the carbonyl groups in the IR spectra of the complexes, it was concluded that the ligands bonded to the metal in the semiquinone form. Also, the electronic absorption spectra of the two complexes showed strong UV bands due to metal-to-ligand charge transfer. The magnetic susceptibility determination for the Cr(ChrySQ)3 complex at 300 K gave a value of 3.261 x 10(-6) e.m.u. g-1 with an effective magnetic moment (mu(eff)) of 2.55 mu(B). Investigation of Cr(ChrySQ)3 and Cr(ChrySQM)3 by EPR spectroscopy at room temperature showed isotropic g values of 1.997 and 1.991 for the two complexes, respectively. The isotropic g values are greater than those observed previously for various o-semiquinone chromium complexes. Chrysenequinonemonoxime reacted with Cr(NO3)3 to give the bis(chrysenequinonemonoximato) (chrysenequinonemonoxime)chromium(III)nitrate. Spectroscopic studies of the complex suggested that the chrysenequinonemonoxime ligand is attached to the metal in both nitroso and oxime forms. Examination of the chromium complexes by cyclic voltammetry showed some reversible or quasi-reversible redox reactions due to tautomeric interconversions of the semiquinone-catechol couples through electron transfer.

  DOI：

  10.1016/0584-8539(93)80266-d