Chemistry: An Atoms First Approach
Chemistry: An Atoms First Approach
2nd Edition
ISBN: 9781305079243
Author: Steven S. Zumdahl, Susan A. Zumdahl
Publisher: Cengage Learning
bartleby

Concept explainers

Question
Book Icon
Chapter 20, Problem 3RQ
Interpretation Introduction

Interpretation: The geometries and bond angle for the metal ion having coordination number 2 , 4 or 6 ; the correct formulas for given complex ions and their electronic configuration are to be stated.

Concept introduction: Coordination number is the number of nearest neighbors of the given metal ion. The geometry of a coordination complex depends on the number of ligands that are surrounding a metal ion.

Expert Solution & Answer
Check Mark

Answer to Problem 3RQ

Answer

When a metal ion has a coordination number of 2 , 4 or 6 , it has geometry as linear with a bond angle of 180°, tetrahedral with a bond angle of 109.5° or square planar with a bond angle of 90° and octahedral with a bond angle as 90° respectively.

  1. I. The formulas for the given complex ions are,

    a. The formula of the complex is [Ag(CN)2] and bond angle is 180°.

b. The formula of the complex is [Cu(H2O)4]+ and bond angle is 109.5°.

c. The formula of the complex is [Mn(C2O4)2]2 and bond angle is 90°.

d. The formula of the complex is [Pt(NH3)4]2+ and bond angle is 90°.

e. The formula of the complex is [Fe(EDTA)] and bond angle is 90°.

d. The formula of the complex is [CoCl6]2+ and bond angle is 90°.

f. The formula of the complex is [Cr(en)3]3+ and bond angle is 90°.

  1. II. The electronic configuration of metal ion in each of the complex ion is,
  2. a. The electronic configuration of Ag+ is [Kr]4d10.
  3. b. The electronic configuration of Cu+ is [Ar]3d10.
  4. c. The electronic configuration of Mn2+ is [Ar]3d54s1.
  5. d. The electronic configuration of Pt2+ is [Xe]4f145d8.
  6. e. The electronic configuration of Fe3+ is [Ar]3d5.
  7. f. The electronic configuration of Co2+ is [Ar]3d7.

Explanation of Solution

(I)

To determine: The geometry and associated bond angles when a metal ion has a coordination number of 2 , 4 or 6 .

When a metal ion has a coordination number of 2 , it means it is linear in geometry and has a bond angle of 180°. But, when the metal ion has coordination number of 4 it means it is surrounded by four neighbors and therefore the geometry is tetrahedral and the angle is 109.5° or it can be square planar where the bond angle is 90°. When a metal ion has a coordination number of 6 , it means it is surrounded by six neighbours and has geometry as octahedral and bond angle equal to 90°.

(II)

(a)

To determine: The correct formula for the linear Ag+ complex having CN ligands.

Linear geometry shows that Ag+ is surrounded by two ligands and therefore it has a coordination number of 2 . The formula of the complex is [Ag(CN)2] and bond angle is 180°.

(b)

To determine: The correct formula for tetrahedral Cu+ complex having H2O ligands.

Tetrahedral geometry shows that Cu+ is surrounded by four ligands and therefore it has a coordination number of 4. The formula of the complex is [Cu(H2O)4]+ and bond angle is 109.5°.

(c)

To determine: The correct formula for tetrahedral Mn2+ complex having Oxalate ligands.

Tetrahedral geometry shows that Mn2+ is surrounded by four ligands and therefore it has a coordination number of 4. The formula of the complex is [Mn(C2O4)2]2 and bond angle is 90°.

(d)

To determine: The correct formula for square planar Pt2+ complex having NH3 ligands.

Square planar geometry shows that Pt2+ is surrounded by four ligands and therefore it has a coordination number of 4. The formula of the complex is [Pt(NH3)4]2+ and bond angle is 90°.

(e)

To determine: The correct formula for octahedral Fe3+ complex ions having EDTA ligands.

An octahedral geometry shows that Fe3+ is surrounded by six ligands and therefore it has a coordination number of 6 . The formula of the complex is [Fe(EDTA)] and bond angle is 90°.

(f)

To determine: The correct formula for octahedral Co2+ complex ions having Cl ligands.

An octahedral geometry shows that Co2+ is surrounded by six ligands and therefore it has a coordination number of 6 . The formula of the complex is [CoCl6]2+ and bond angle is 90°.

(g)

To determine: The correct formula for octahedral Cr3+ complex ions having ethylene-diamine ligands.

Step: 7

An octahedral geometry shows that Cr3+ is surrounded by six ligands and therefore it has a coordination number of 6 . The formula of the complex is [Cr(en)3]3+ and bond angle is 90°.

(III)

(a)

To determine: The electronic configuration for the linear Ag+ complex having CN ligands.

The electronic configuration of Ag is [Kr]4d105s1. After removal of one electron it gets converted to Ag+ and electronic configuration therefore changes to [Kr]4d10.

(b)

To determine: The electronic configuration for tetrahedral Cu+ complex having H2O ligands.

The electronic configuration of Cu is [Ar]3d104s1. After removal of one electron it gets converted to Cu+ and electronic configuration therefore changes to [Ar]3d10.

(c)

To determine: The electronic configuration for tetrahedral Mn2+ complex having Oxalate ligands.

The electronic configuration of Mn is [Ar]3d54s2. After removal of two electrons, it gets converted to Mn2+ and electronic configuration therefore changes to [Ar]3d5.

(d)

To determine: The electronic configuration for square planar Pt2+ complex having NH3 ligands.

The electronic configuration of Pt is [Xe]4f145d96s1. After removal of two electrons, it gets converted to Pt2+ and electronic configuration therefore changes to [Xe]4f145d8.

(e)

To determine: The electronic configuration for octahedral Fe3+ complex ions having EDTA ligands.

The electronic configuration of Fe is [Ar]3d64s2. After removal of three electrons it gets converted to Fe3+ and electronic configuration therefore changes to [Ar]3d5.

(f)

To determine: The electronic configuration for octahedral Co2+ complex ions having Cl ligands.

The electronic configuration of Co is [Ar]3d74s2. After removal of two electrons it gets converted to Co2+ and electronic configuration therefore changes to [Ar]3d7.

(g)

To determine: The correct electronic configuration for octahedral Cr3+ complex ions having ethylene-diamine ligands.

The electronic configuration of Cr is [Ar]3d54s1. After removal of three electrons, it gets converted to Cr3+ and electronic configuration therefore changes to [Ar]3d3.

Conclusion

Conclusion

The coordination number and the availability of orbitals decide the geometry of the coordination compound and the removal of electron from a metal occurs from the shell that is far from the influence of nucleus that is the outermost shell.

Want to see more full solutions like this?

Subscribe now to access step-by-step solutions to millions of textbook problems written by subject matter experts!

Chapter 20 Solutions

Chemistry: An Atoms First Approach

Ch. 20 - Prob. 1ALQCh. 20 - Prob. 2ALQCh. 20 - Prob. 3ALQCh. 20 - Prob. 4ALQCh. 20 - Prob. 5QCh. 20 - Four different octahedral chromium coordination...Ch. 20 - Prob. 7QCh. 20 - Prob. 8QCh. 20 - Prob. 9QCh. 20 - Prob. 10QCh. 20 - Prob. 11QCh. 20 - Prob. 12QCh. 20 - Prob. 13QCh. 20 - Prob. 14QCh. 20 - Prob. 15QCh. 20 - Prob. 16QCh. 20 - Prob. 17QCh. 20 - Prob. 18QCh. 20 - Prob. 19QCh. 20 - Prob. 20QCh. 20 - Prob. 21ECh. 20 - Prob. 22ECh. 20 - Prob. 23ECh. 20 - Prob. 24ECh. 20 - Prob. 25ECh. 20 - Prob. 26ECh. 20 - Prob. 27ECh. 20 - Prob. 28ECh. 20 - Prob. 29ECh. 20 - Prob. 30ECh. 20 - Prob. 31ECh. 20 - A coordination compound of cobalt(III) contains...Ch. 20 - Prob. 33ECh. 20 - Prob. 34ECh. 20 - Prob. 35ECh. 20 - Prob. 36ECh. 20 - Prob. 37ECh. 20 - Give formulas for the following complex ions. a....Ch. 20 - Prob. 39ECh. 20 - Prob. 40ECh. 20 - Prob. 41ECh. 20 - Amino acids can act as ligands toward transition...Ch. 20 - Prob. 43ECh. 20 - Prob. 44ECh. 20 - Prob. 45ECh. 20 - Prob. 46ECh. 20 - Prob. 47ECh. 20 - Prob. 48ECh. 20 - Prob. 49ECh. 20 - Prob. 50ECh. 20 - Prob. 51ECh. 20 - Prob. 52ECh. 20 - The CrF64 ion is known to have four unpaired...Ch. 20 - Prob. 54ECh. 20 - Prob. 55ECh. 20 - The complex ion Fe(CN)63 is paramagnetic with one...Ch. 20 - Prob. 57ECh. 20 - Prob. 58ECh. 20 - Prob. 59ECh. 20 - Prob. 60ECh. 20 - The wavelength of absorbed electromagnetic...Ch. 20 - The complex ion NiCL42 has two unpaired electrons,...Ch. 20 - How many unpaired electrons are present in the...Ch. 20 - Prob. 64ECh. 20 - Prob. 65ECh. 20 - Prob. 66ECh. 20 - Prob. 67ECh. 20 - Prob. 68ECh. 20 - Silver is sometimes found in nature as large...Ch. 20 - Prob. 70ECh. 20 - Prob. 71AECh. 20 - The compound cisplatin, Pt(NH3)2Cl2, has been...Ch. 20 - Prob. 73AECh. 20 - Prob. 74AECh. 20 - Prob. 75AECh. 20 - Prob. 76AECh. 20 - Prob. 77AECh. 20 - Name the following coordination compounds. a....Ch. 20 - Prob. 79AECh. 20 - Prob. 80AECh. 20 - Carbon monoxide is toxic because it binds more...Ch. 20 - For the process Co(NH3)5Cl2++ClCO(NH3)4Cl2++NH3...Ch. 20 - Prob. 83CWPCh. 20 - Which of the following molecules exhibit(s)...Ch. 20 - Prob. 85CWPCh. 20 - Prob. 86CWPCh. 20 - Prob. 87CWPCh. 20 - Which of the following statement(s) is( are) true?...Ch. 20 - Prob. 89CPCh. 20 - Consider the pseudo-octahedral complex ion of...Ch. 20 - Prob. 91CPCh. 20 - Prob. 92CPCh. 20 - Prob. 93CPCh. 20 - Prob. 94CPCh. 20 - Prob. 95CPCh. 20 - Prob. 96CPCh. 20 - Prob. 97CPCh. 20 - Prob. 98IPCh. 20 - Prob. 99IPCh. 20 - Prob. 100IPCh. 20 - Prob. 101MP
Knowledge Booster
Background pattern image
Chemistry
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.
Recommended textbooks for you
  • Text book image
    Chemistry
    Chemistry
    ISBN:9781305957404
    Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
    Publisher:Cengage Learning
    Text book image
    Chemistry: An Atoms First Approach
    Chemistry
    ISBN:9781305079243
    Author:Steven S. Zumdahl, Susan A. Zumdahl
    Publisher:Cengage Learning
    Text book image
    Chemistry
    Chemistry
    ISBN:9781133611097
    Author:Steven S. Zumdahl
    Publisher:Cengage Learning
  • Text book image
    Chemistry: The Molecular Science
    Chemistry
    ISBN:9781285199047
    Author:John W. Moore, Conrad L. Stanitski
    Publisher:Cengage Learning
    Text book image
    Chemistry: Principles and Practice
    Chemistry
    ISBN:9780534420123
    Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
    Publisher:Cengage Learning
    Text book image
    Chemistry & Chemical Reactivity
    Chemistry
    ISBN:9781133949640
    Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
    Publisher:Cengage Learning
Text book image
Chemistry
Chemistry
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Cengage Learning
Text book image
Chemistry: An Atoms First Approach
Chemistry
ISBN:9781305079243
Author:Steven S. Zumdahl, Susan A. Zumdahl
Publisher:Cengage Learning
Text book image
Chemistry
Chemistry
ISBN:9781133611097
Author:Steven S. Zumdahl
Publisher:Cengage Learning
Text book image
Chemistry: The Molecular Science
Chemistry
ISBN:9781285199047
Author:John W. Moore, Conrad L. Stanitski
Publisher:Cengage Learning
Text book image
Chemistry: Principles and Practice
Chemistry
ISBN:9780534420123
Author:Daniel L. Reger, Scott R. Goode, David W. Ball, Edward Mercer
Publisher:Cengage Learning
Text book image
Chemistry & Chemical Reactivity
Chemistry
ISBN:9781133949640
Author:John C. Kotz, Paul M. Treichel, John Townsend, David Treichel
Publisher:Cengage Learning