Oxidative enhancement of the χ(3) values of solutions of cis-Mo(CO)4L2 (L = PPh3, AsPh3, PPh2Np) complexes as measured by DFWM

Academic Article


  • Detailed degenerate four wave mixing (DFWM) studies of four molybdenum complexes, cis-Mo(CO) (PPh ) , cis-Mo(CO) (AsPh ) , cis-Mo(CO) (PPh Np) and cis-Mo(CO) (P(OPh) ) are reported in this paper. Upon exposure to air/oxygen, the χ values of solutions of the first three complexes increase dramatically with time. However, when excess free ligand is added to any of the solutions, no additional increase in the χ value is observed. Hence, it is possible to obtain solutions with high χ values by first oxidizing the solution and then adding excess ligand to stabilize the solution. Further, the increase in the χ values of the solutions parallels the increase in the linear absorption, but it is unclear whether the increased linear absorption plays any role in the increase in the χ values of the solutions. This study also shows how degenerate four wave mixing can be used as a very sensitive technique to detect the chemical change in a solution when the third order optical nonlinearities of the reactant and product are very different. © 1998 Published by Elsevier Science B.V. All rights reserved. 4 3 2 4 3 2 4 2 2 4 3 2 (3) (3) (3) (3) (3)
  • Published In

  • Optical Materials  Journal
  • Digital Object Identifier (doi)

    Pubmed Id

  • 20151771
  • Author List

  • Sun W; Byeon CC; McKerns MM; Lawson CM; Dunn JM; Hariharasarma M; Gray GM
  • Start Page

  • 87
  • End Page

  • 93
  • Volume

  • 11
  • Issue

  • 1