J.L. Sessler's Books

Expanded, Contracted & Isomeric Porphyrins

By: J.L. Sessler,S.J. Weghorn

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Expanded, Contracted & Isomeric Porphyrins

By: J.L. Sessler,S.J. Weghorn

The porphyrins are a class of naturally-occurring macrocycles and are ubiquitous in our world. As such, they have been called the Pigments of Life. This auspicious designation reflects their importance in numerous biological functions. Indeed, life as we understand it relies on the full range of biological processes that are either performed by or catalyzed by porphyrin-containing proteins. Chlorophyll-containing photosynthetic reaction centers in plants, for instance, convert light energy into chemical energy while producing oxygen along the way. It is this oxygen, evolved from photosynthesis, that is transported, stored, and reduced by heme-containing proteins in many organisms, including mammals. Not surprisingly, therefore, these molecules remain of fundamental interest to chemists and biochemists. Indeed, they continue to be intensely investigated by researchers world-wide.Inspired by the importance of the porphyrins, a new research direction has emerged in recent years that is devoted to the preparation and study of non-porphyrin polypyrrole macrocycles. Here, the principal objectives have been to generate completely synthetic systems that bear some structural resemblance to naturally-occurring porphyrin derivatives while being quite different in their specific chemical makeup. Within this context, three different research directions have evolved, namely those involving the syntheses of contracted, isomeric, and expanded porphyrins, respectively. It is the chemistry of these systems that is the subject of this book. Because of the newness of the field, the emphasis of this book will be on synthesis and characterization (all work on porphyrin isomers and much of that associated with expanded porphyrins has only appeared in the last 10 years). One chapter on applications has, however, been included. Also, in the context of the preparative portions of the text, some efforts have been made to explain why various porphyrin analogue targets are of interest.

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533

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Elsevier

Published Date

ISBN 10

0080535232

ISBN 13

9780080535234

Hand Secrets

By: Peter J. L. Jebson,Morton L. Kasdan

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Hand Secrets

By: Peter J. L. Jebson,Morton L. Kasdan

The Secrets Series® is breaking new ground again. This volume in the very popular Secrets Series® is back in an exciting, updated, and completely redesigned 3rd Edition. A new, two-color page layout, a more portable size, and a list of the "Top 100 Secrets” in hand surgery help readers to better meet the challenges they face today. Readers will still find all of the features they rely on the Secret Series® for-a question- and -answer format, lists, mnemonics, tables, and an informal tone that make reference fast and easy. No matter what questions arise, in practice or while preparing for the hand surgery boards, this 3rd Edition has the answers-in print and online. Uses bulleted lists, tables, short answers, and a highly detailed index to expedite reference. Features pearls, tips, memory aids, and "secrets" from the experts. Covers all of today's most common conditions and their treatment. Presents a list of the "Top 100 Secrets" to keep in mind during residency and practice. Features a new, more compact trim size (5 1/4" x 8 1/2") for enhanced portability. Makes information easier to find with a new, two-color page layout and "Key Points" boxes. Identifies useful websites to facilitate obtaining additional information on a specific topic, and provides live links in online version.

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Page Count

388

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Elsevier Health Sciences

Published Date

ISBN 10

1560536233

ISBN 13

9781560536239

Expanded, Contracted & Isomeric Porphyrins

By: J.L. Sessler,S.J. Weghorn

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Expanded, Contracted & Isomeric Porphyrins

By: J.L. Sessler,S.J. Weghorn

Average ratings

N/A

Write a review

Solve jigsaw puzzle

Age

Page Count

533

Publisher

Elsevier

Published Date

ISBN 10

0080535232

ISBN 13

9780080535234

Book's by J.L. Sessler

Expanded, Contracted & Isomeric Porphyrins

Expanded, Contracted & Isomeric Porphyrins

Hand Secrets

Hand Secrets

Expanded, Contracted & Isomeric Porphyrins

Expanded, Contracted & Isomeric Porphyrins

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