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Ch.21 - Transition Elements and Coordination Chemistry
McMurry - Chemistry 8th Edition
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모든 교과서McMurry 8th EditionCh.21 - Transition Elements and Coordination Chemistry문제 21.79a
21장, 문제 21.79a

Assign a systematic name to each of the following ions.  
(a) [AuCl4]-
(b) [Fe(CN)6]4-

검증된 단계별 안내
1
Identify the central metal atom in each complex ion. For (a), the central metal is Au (gold), and for (b), it is Fe (iron).
Determine the oxidation state of the central metal atom. For (a), consider the charge of the ligands (Cl is -1) and the overall charge of the ion (-1) to find the oxidation state of Au. For (b), consider the charge of the ligands (CN is -1) and the overall charge of the ion (-4) to find the oxidation state of Fe.
Name the ligands. For (a), the ligand is chloride, and for (b), the ligand is cyanide. Use the appropriate prefixes if there are multiple identical ligands (e.g., tetra- for four chloride ions).
Combine the ligand names with the metal name. For anionic complexes, the metal name ends with the suffix '-ate'. For (a), use 'aurate' for gold, and for (b), use 'ferrate' for iron.
Write the systematic name by placing the ligand names first, followed by the metal name with its oxidation state in Roman numerals in parentheses.>

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주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Coordination Compounds

Coordination compounds consist of a central metal atom or ion bonded to surrounding molecules or ions, known as ligands. The nature of these ligands and their arrangement around the metal center significantly influence the properties and reactivity of the compound. Understanding the structure of coordination compounds is essential for naming them systematically.
추천 영상:
가이드 코스
01:32
Coordination Compound Naming

Oxidation States

The oxidation state of an element in a compound indicates the degree of oxidation or reduction it has undergone. In coordination compounds, the oxidation state of the central metal ion is crucial for determining the systematic name. For example, in [AuCl4]-, gold has an oxidation state of +3, which is important for naming the ion correctly.
추천 영상:
가이드 코스
02:42
Oxidation Numbers

IUPAC Nomenclature

The International Union of Pure and Applied Chemistry (IUPAC) provides systematic rules for naming chemical compounds, including coordination complexes. The naming convention involves identifying the ligands, their quantities, and the oxidation state of the metal. For instance, in [Fe(CN)6]4-, the complex is named hexacyanoferrate(II) based on these rules.
추천 영상:
가이드 코스
02:39
Rules for Naming Alkanes
관련 실천
교과서 질문

Six isomers for a square planar palladium(II) complex that contains two Cl-and two SCN-ligands are shown below.


(a) Which structures are cis-trans isomers?

(b) Which structures are linkage isomers?

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교과서 질문

Two first-series transition metals have three unpaired electrons in complex ions of the type [MCl4]2-.

(a) What are the oxidation state and the identity of M in these complexes?

(b) Draw valence bond orbital diagrams for the two possible ions.

(c) Based on common oxidation states of first-series transition metals (Figure 21.6), which ion is more likely to exist?

<QUESTION REFERENCES FIGURE 21.6>

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교과서 질문

Constitutional isomers of a ruthenium(II) coordination compound are shown below.

(a) Give the formula and name for structures 1-3.

(b) Which structures are linkage isomers? 

(c) Which structures are ionization isomers?

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교과서 질문

Tell how many diastereoisomers are possible for each of the following complexes, and draw their structures. 

(a) Pt(NH3)3Cl (square planar) 

(b) [FeBr2Cl2(en)]-

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교과서 질문

Nickel(II) complexes with the formula NiX2L2, where X− is Cl− or N-bonded NCS− and L is the monodentate triphenylphosphine ligand P(C6H5)3, can be square planar or tetrahedral.

(a) Draw crystal field energy-level diagrams for a square planar and a tetrahedral nickel(II) complex, and show the population of the orbitals.

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교과서 질문

Draw a crystal field energy-level diagram, and predict the number of unpaired electrons for each of the following: 

(a) [Mn(H2O)6]2+

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