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Ch.21 - Transition Elements and Coordination Chemistry
McMurry - Chemistry 8th Edition
McMurry8th EditionChemistryISBN: 9781292336145당신이 사용하는 게 아니라요?교과서 변경
모든 교과서McMurry 8th EditionCh.21 - Transition Elements and Coordination Chemistry문제 21.6
21장, 문제 21.6

What is the name of the compound [Fe(H2O)5(SCN)]Cl2? 
(a) pentaaquathiocyanatoiron(III) chloride 
(b) pentaaquachlorothiocyanato iron(III) 
(c) pentaaquathiocyanatoiron(III) dichloride
(d) pentaaquathiocyanatoiron(II) chloride

검증된 단계별 안내
1
Identify the central metal ion in the complex, which is iron (Fe).
Determine the oxidation state of the iron. The complex has a charge of +2 from the two chloride ions (Cl^-), and the thiocyanate (SCN^-) has a charge of -1. The water molecules (H2O) are neutral. Therefore, the oxidation state of iron can be calculated by balancing the charges.
Recognize the ligands present in the complex: five water molecules (H2O) and one thiocyanate ion (SCN^-).
Name the ligands: 'aqua' for water and 'thiocyanato' for SCN^-. The prefix 'penta' indicates five water molecules.
Combine the information to name the compound: 'pentaaquathiocyanatoiron(III) chloride', considering the oxidation state of iron and the number of chloride ions.

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주요 개념

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Coordination Compounds

Coordination compounds consist of a central metal atom or ion bonded to surrounding molecules or ions called ligands. In this case, iron (Fe) is the central metal, and the ligands include water (H2O) and thiocyanate (SCN). Understanding the structure and naming conventions of these compounds is essential for identifying them correctly.
추천 영상:
가이드 코스
01:32
Coordination Compound Naming

Nomenclature of Coordination Complexes

The nomenclature of coordination complexes follows specific rules set by the International Union of Pure and Applied Chemistry (IUPAC). Ligands are named first in alphabetical order, followed by the metal's name, which is modified based on its oxidation state. In this question, recognizing the correct order and naming conventions is crucial for determining the correct name of the compound.
추천 영상:
가이드 코스
00:43
Coordination Complexes Example

Oxidation States

The oxidation state of a metal in a coordination compound indicates its charge and is vital for proper naming. In the compound [Fe(H2O)5(SCN)]Cl2, the iron can be in either the +2 or +3 oxidation state. Identifying the correct oxidation state is necessary to accurately name the compound and distinguish between options that may differ based on this aspect.
추천 영상:
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02:42
Oxidation Numbers
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