Cr(NH3)xBry. what is the value for x and y?

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  • [Cr(NH3)6]Br3

  • The most common oxdn state of Cr(III) and it has octahedral coordn; assume cmplx is neutral. That gives us Cr(NH3)3Br3 that can exist as fac and mer isomers.
    [Cr(NH3)6-xBrx]^6-x ( = 1-4, 6) cmplx molecules and ions are known.
    F. A. Cotton, G. Wilkinson, C. A. Murillo, M. Bochmann,
    Advanced Inorganic Chemistry 6th ed (1999). p 745

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