alleryThe correct IUPAC name of [NiCl₂(PPh₃)₂] is
ADichloridonickel(II) triphenylphosphine
BDichloridobis(triphenylphosphine)nickel(II)
CBis(triphenylphosphine)nickeldichloride
DNickel(II) chloride phosphine complex
Answer & Solution
Correct answer: B. Dichloridobis(triphenylphosphine)nickel(II)
1. Ligands are alphabetised: chloro (or chlorido) comes before triphenylphosphine.
2. The prefix "bis" (not di) is used for ligand names already carrying a numeric prefix.
3. Oxidation state of Ni is +2, indicated in Roman numerals.
4. So syllabus names it dichloridobis(triphenylphosphine)nickel(II).
_Source: syllabus Chemistry, Unit 5 "Coordination Compounds", §5.3.2(iv)_
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