Which of the following compounds/species are incorrectly matched against the indicated names. (a) [ PdI 2 ( ONO ) 2 ( H 2 O ) 2 ] → Diaquadiiodidodinitrito-Npalladium(IV) (b) [ Fe ( π − C 5

Question

Which of the following compounds/species are incorrectly matched against the indicated names. (a) [ PdI 2 ​ ( ONO ) 2 ​ ( H 2 ​ O ) 2 ​ ] → Diaquadiiodidodinitrito-Npalladium(IV) (b) [ Fe ( π − C 5 ​ H 5 ​ ) 2 ​ ] → Bis ( η 5 -cyclopentadienyl)iron(II) (c) H 2 ​ [ PtCl 6 ​ ] → Hexachloridoplatinate(IV) hydride (d) [ Al ( OH ) ( H 2 ​ O ) 5 ​ ] SO 4 ​ → Pentaaquahydroxidoaluminium(III) sulphate (e) [ Cr ( C 6 ​ H 6 ​ ) 2 ​ ] → Bis ( η 6 -benzene)chromium(0)

TestHub · Accepted Answer

Two compounds are incorrectly matched: (a) and (c).

(a) $[P d I_{2} (ONO)_{2} (H_{2} O)_{2}]$ is incorrect because the $ON O^{-}$ ligand coordinates through oxygen, so it must be named dinitrito-O instead of dinitrito-N.

(c) $H_{2} [PtC l_{6}]$ is incorrect because $H^{+}$ acts as a counter-cation (hydrogen ion), so the correct name is Hydrogen hexachloridoplatinate(IV), not a hydride.

The remaining complexes—(b), (d), and (e)—are all perfectly matched with their correct IUPAC names.

Chemistry - Coordination Chemistry Question with Solution | TestHub

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