Complex or Compound Name Metal Metal d Charge electrons Molecular Geometry Obeys 18- electron rule?

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[Pt(phen)(NO)]3+

Complex or
Compound
Name
Metal Metal d
Charge electrons
Molecular
Geometry
Obeys 18-
electron
rule?
Transcribed Image Text:Complex or Compound Name Metal Metal d Charge electrons Molecular Geometry Obeys 18- electron rule?
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The standard rules to follow in the nomenclature of coordination compounds are described below.

  • Ligands are always written before the central metal ion in naming complex coordination complexes.
  • When a coordination center is bound to more than one ligand, the names of the ligands are written in alphabetical order, unaffected by the numerical prefixes that must be applied to the ligands.
  • If many monodentate ligands are present in the coordination compound, the prefixes that give insight into the number of ligands are of the type: di-, tri-, tetra-, and so on.
  • If many polydentate ligands are attached to the central metal ion, the prefixes take the form bis-, tris-, and so on.
  • The names of the anions present in the coordination compound must end with the letter "o", which generally replaces the letter "e". Therefore, the sulfate anion must be written as "sulfato" and the chloride anion must be written as "chlorido".
  • The following neutral ligands are assigned specific names in coordination compounds: NH3 (amine), H2O (aqua or aquo), CO (carbonyl), NO (nitrosyl).
  • After naming the ligands, the name of the central metal atom is written. If an anionic charge is associated with the complex, the suffix "-ate" is used.
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