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# Write down the IUPAC name for the following complex and indicate the oxidation state electronic configuration and coordination number Also give stereochemistry and magnetic moment of the complex: (iii) [CrCl_{3}(py)_{3}]

9.24     Write down the IUPAC name for the following complex and indicate the oxidation state, electronic configuration and coordination number. Also give stereochemistry and magnetic moment of the complex:

$(iii) [CrCl_{3}(py)_{3}]$

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The IUPAC name of the given compound is Trichloridotripyridinechromium (III).

The oxidation state of Cr in this compound is +3.

The electronic configuration is d3.

The coordination number of this compound is 6.

The magnetic moment of a compound is given by :

$=\ \sqrt{n(n+2)}$                                  Here n is the number of the unpaired electrons.

or                                                                                  $=\ \sqrt{3(3+2)}\ =\ \sqrt{15}BM$

Stereochemistry:-

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