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 21.87b
21장, 문제 21.87b

Tell how many diastereoisomers are possible for each of the following complexes, and draw their structures. 
(c) [Cu(H2O)4Cl2]+
(d) Ru(NH3)3I3

검증된 단계별 안내
1
Step 1: Understand the concept of diastereoisomers.

Diastereoisomers are stereoisomers that are not mirror images of each other. In coordination complexes, they arise when there are multiple chiral centers or when the ligands can be arranged in different spatial configurations.

Step 2: Analyze the complex [Cu(H2O)4Cl2]+.

This complex has a coordination number of 6, typically forming an octahedral geometry. The ligands are four water molecules and two chloride ions. Consider the possible arrangements of these ligands around the central copper ion.

Step 3: Determine the possible diastereoisomers for [Cu(H2O)4Cl2]+.

In an octahedral complex with two identical ligands (Cl-), the ligands can be arranged in either a cis or trans configuration. The cis configuration has the two chloride ions adjacent to each other, while the trans configuration has them opposite each other.

Step 4: Analyze the complex Ru(NH3)3I3.

This complex also has a coordination number of 6, suggesting an octahedral geometry. The ligands are three ammonia molecules and three iodide ions. Consider the possible spatial arrangements of these ligands.

Step 5: Determine the possible diastereoisomers for Ru(NH3)3I3.

With three identical ligands (NH3) and three identical ligands (I-), the complex can form facial (fac) and meridional (mer) isomers. In the fac isomer, the three identical ligands are adjacent, forming a face of the octahedron. In the mer isomer, the three identical ligands form a meridian, spanning the octahedron.

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 a type of stereoisomer 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.

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 octahedral or tetrahedral arrangements, influences the types of isomers that can form. Recognizing the coordination number and geometry is essential for predicting the number of diastereoisomers.
추천 영상:
가이드 코스
00:43
Coordination Complexes Example

Ligand Types and Their Influence

Ligands can be classified as monodentate, bidentate, or polydentate based on the number of donor atoms they use to bond to the metal center. The nature and arrangement of these ligands significantly affect the stereochemistry of the complex. For example, the presence of bidentate ligands can lead to more complex isomerism, including diastereoisomers.
추천 영상:
가이드 코스
02:38
Ligand Types
관련 실천
교과서 질문

What is the systematic name for each of the following coordination compounds? 

(a) Cs[FeCl4]

(b) [V(H2O)6](NO3)3

162
views
교과서 질문

What is the systematic name for each of the following ions? 

(c) [Co(CO3)3]3-

(d) [Pt(en)2(SCN)2]2+

117
views
교과서 질문

What is the systematic name for each of the following ions?

(a) [MnCl4]2-

(b) [Ni(NH3)6]2+

132
views
교과서 질문

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

(b) Diastereoisomers A and B have dipole moments of 6.5 D and 3.8 D, respectively. Which of your diastereoisomers is A and which is B?

108
views
교과서 질문

Assign a systematic name to each of the following ions.

(c) [Fe(H2O)5NCS]2+

(d) [Cr(NH3)2(C2O4)2]-

221
views
교과서 질문

Give a valence bond description of the bonding in each of the following complexes. 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. 

(b) [NiBr4]2- (tetrahedral) 

112
views