Skip to main content
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 21.87a
21장, 문제 21.87a

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)]-

검증된 단계별 안내
1
Step 1: Understand the concept of diastereoisomers. Diastereoisomers are stereoisomers that are not mirror images of each other. They occur in compounds with multiple chiral centers or in coordination complexes with different spatial arrangements.
Step 2: Analyze the first complex, Pt(NH3)3Cl, which is square planar. In square planar complexes, the ligands are arranged in a plane around the central metal atom. Consider the possible arrangements of the three NH3 ligands and one Cl ligand around the Pt center.
Step 3: Determine the possible diastereoisomers for Pt(NH3)3Cl. Since it is a square planar complex, check for any possible geometric isomers by arranging the ligands differently around the central metal.
Step 4: Analyze the second complex, [FeBr2Cl2(en)]-. This is an octahedral complex with two bidentate ethylenediamine (en) ligands and two different monodentate ligands (Br and Cl).
Step 5: Determine the possible diastereoisomers for [FeBr2Cl2(en)]-. Consider the different ways the Br and Cl ligands can be arranged around the Fe center, taking into account the bidentate nature of the en ligands, which can lead to cis and trans isomers.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

주요 개념

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

Diastereoisomers

Diastereoisomers are stereoisomers that are not mirror images of each other. They occur in molecules with multiple chiral centers or in coordination complexes where different arrangements of ligands can lead to distinct spatial configurations. Understanding diastereoisomers is crucial for determining the number of possible isomers for a given complex, as they can exhibit different physical and chemical properties.

Coordination Complexes

Coordination complexes consist of a central metal atom bonded to surrounding ligands, which can be neutral molecules or ions. The geometry of these complexes, such as square planar or octahedral, influences the arrangement of ligands and the potential for isomerism. Recognizing the geometry is essential for predicting the number of diastereoisomers, as it determines how ligands can be arranged around the metal center.
추천 영상:
가이드 코스
00:43
Coordination Complexes Example

Chirality in Coordination Compounds

Chirality refers to the property of a molecule that makes it non-superimposable on its mirror image, often due to the presence of chiral centers. In coordination compounds, chirality can arise from the arrangement of ligands around a metal center. Identifying chiral configurations is important for determining the number of diastereoisomers, as each unique arrangement can lead to different stereoisomers.
추천 영상:
가이드 코스
01:32
Coordination Compound Naming
관련 실천
교과서 질문

For each of the following complexes, describe the bonding using valence bond theory. Include orbital diagrams for the free metal ion and the metal ion in the complex. Indicate which hybrid orbitals the metal ion uses for bonding, and specify the number of unpaired electrons. 

(a) [AuCl4]2 (square planar)

109
views
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?

93
views
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.

98
views
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+

103
views
1
rank
교과서 질문

Cobalt(III) trifluoroacetylacetonate, Co(tfac)3, is a sixc oordinate, octahedral metal chelate in which three planar, bidentate tfac ligands are attached to a central Co atom:

(a) Draw all possible diastereoisomers and enantiomers of Co(tfac)3.

105
views
교과서 질문

For each of the following complexes, draw a crystal field energy-level diagram, assign the electrons to orbitals, and predict the number of unpaired electrons.

(a) [Pt(NH3)4]2+ (square planar)

109
views