Electron spin resonance spectroscopy of organic radicals / Fabian Gerson, Walter Huber.

Format:

Book

Author/Creator:

Gerson, Fabian.

Contributor:

Huber, Walter, 1949-

Language:

English

Subjects (All):

Electron paramagnetic resonance spectroscopy.

Physical Description:

xv, 464 pages : illustrations ; 24 cm

Place of Publication:

Weinheim : Wiley-VCH, [2003]

Summary:

Electron spin resonance spectroscopy is the method used to determine the structure and life expectancy of a number of radicals. Written by Fabian Gerson and Walter Huber, top experts in the field of electron spin resonance spectroscopy, this book offers a compact yet readily comprehensible introduction to the modern world of ESR. Thanks to its comprehensive coverage, ranging from fundamental theory right up to the treatment of all important classes of organic radicals and triplet-state molecules that can be analyzed using ESR spectroscopy, this unique book is suitable for users in both research and industry. Instead of using complex mathematical derivations, the authors present a readily understandable approach to the field by interpreting sample spectra and classifying experimental data. In short, the ideal book for newcomers to the subject and an absolute must-have for everyone confronted with ESR spectroscopy and wanting to become acquainted with this widely-used method of analysis.

Contents:

A General Part 1

1 Physical Fundamentals of Electron Spin Resonance 3

1.1 Spin and Magnetic Moment of Electron 3

1.2 Zeeman Splitting and Resonance Condition 4

1.3 Spin-lattice Relaxation 6

1.4 Line-width and Line-form 8

2 Paramagnetic Organic Species and Their Generation 10

2.1 Spin Multiplicity 10

2.2 Neutral Radicals 13

2.3 Radical Ions 19

2.4 Triplets: Electron-Electron Magnetic Interaction 27

3 Electron-Nuclear Magnetic Interaction 37

3.1 Nuclear Magnetism 37

3.2 Hyperfine Splitting of ESR Signal 39

4 Spin Density, Spin Population, Spin Polarization, and Spin Delocalization 49

4.1 Concepts 49

4.2 [pi] Radicals 56

4.3 [sigma] Radicals 75

4.4 Triplet States 79

4.5 Calculations of Spin Populations 80

5 Multiresonance 83

5.1 Historical Note 83

5.2 ENDOR 84

5.3 TRIPLE Resonance 94

5.4 ELDOR 96

6 Taking and Analyzing ESR Spectra 97

6.1 Instrumentation 97

6.2 g[subscript e] Factor 99

6.3 Optimal Conditions 102

6.4 Unravelling Hyperfine Pattern 109

6.5 Assignment and Sign of Coupling Constants 127

6.6 Ion Pairing 141

6.7 Intramolecular Dynamic Processes 153

B Special Part 167

7 Organic Radicals Centered on One, Two, or Three Atoms 169

7.1 C-, N-, and O-centered Radicals 169

7.2 Si-, P-, and S-centered Radicals 186

7.3 CC-, NN-, and OO-centered Radicals 189

7.4 NO- and NO[subscript 2]-centered Radicals 200

7.5 PO-, PP-, SO-, SS-, and SO[subscript 2]-centered Radicals 208

8 Conjugated Hydrocarbon Radicals 210

8.1 Theoretical Introduction 210

8.2 Odd Alternant Radicals 217

8.3 Odd Nonalternant Radicals and Radical Dianions 224

8.4 Even Alternant Radical Ions 229

8.5 Even Nonalternant Radical Ions 254

8.6 Radicals and Radical Ions with a Perturbed [pi] Perimeter 261

8.7 Radical Ions of Phanes 278

8.8 Radical Ions of Radialenes 287

9 Conjugated Radicals with Heteroatoms 290

9.1 Neutral Radicals 290

9.2 Radical Anions of Electron Acceptors 302

9.3 Radical Cations of Electron Donors 346

9.4 Radical Cations with Special Structures 366

9.5 Radical Ions of Multi-redox Systems 372

10 Saturated Hydrocarbon Radicals 375

10.1 Radical Cations of Alkanes 375

10.2 Structurally Modified Radical Cations 380

11 Biradicals and Triplet-state Molecules 386

11.1 Biradicals 386

11.2 Molecules in Photoexcited Triplet State 389

11.3 Molecules in Ground or Thermally Accessible Triplet State 393

A.1 Nitroxyls as Spin Labels and Spin Adducts 405

A.2 Hyperfine Splitting by Alkali-Metal Nuclei in Counterions of Radical Anions 409.

Notes:

Includes bibliographical references and index.

ISBN:

3527302751

OCLC:

49238853