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Aromaticity Pseudo Aromaticity Anti Aromaticity
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Book Synopsis "Aromaticity, Pseudo-aromaticity, Anti-aromaticity" by : Ernst David Bergmann
Download or read book "Aromaticity, Pseudo-aromaticity, Anti-aromaticity" written by Ernst David Bergmann and published by Israel Academy of Sciences and Humanities. This book was released on 1971 with total page 408 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aromaticity and Antiaromaticity by : Vladimir I. Minkin
Download or read book Aromaticity and Antiaromaticity written by Vladimir I. Minkin and published by Wiley-Interscience. This book was released on 1994-04-14 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Designed to assist chemists in integrating the results of calculations on molecules and ions into their general body of chemical knowledge. Contains recent contributions from theoretical and computational chemistry to the development of the concept of aromaticity (antiaromaticity) and its expansion into new areas such as organometallic and cluster compounds and three-dimensional structures. Updates the modern status of aromaticity and covers basic principles and experimental applications.
Book Synopsis Aromaticity and Antiaromaticity by : Miquel Solà
Download or read book Aromaticity and Antiaromaticity written by Miquel Solà and published by John Wiley & Sons. This book was released on 2022-10-14 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aromaticity and Antiaromaticity A comprehensive review of the science of aromaticity, as well as its evolution, from benzene to atomic clusters In Aromaticity and Antiaromaticity: Concepts and Applications, a team of accomplished chemists delivers a comprehensive exploration of the evolution and critical aspects of aromaticity. The book examines the new global criteria used to evaluate aromaticity, including the Nucleus Independent Chemical Shift (NICS) index and the electronic indices based on electronic properties. Additional discussions of inorganic aromatic compounds developed in this century, which give rise to new concepts like multifold aromaticity, are included. Three-dimensional aromaticity found in fullerenes and nanotubes, Möbius aromaticity present in some annulenes, and excited state aromaticity are explored as well. This volume explores the geometrical, electronic, magnetic, and thermodynamic characteristics of aromatic and antiaromatic compounds and their reactivity properties. It also provides: A thorough historical overview of aromaticity, as well as simple electronic and structural models Comprehensive explorations of organic and inorganic aromatic compounds, concepts of stability and reactivity, and geometric, energetic, magnetic, and electronic criteria of descriptors of aromaticity Practical discussions of heteroaromaticity, as well as Möbius aromaticity and excited state aromaticity In-depth examinations of sigma, pi, delta, and phi aromaticity Perfect for graduate students, researchers, and academics interested in aromaticity, organometallic chemistry, and computational chemistry, Aromaticity and Antiaromaticity: Concepts and Applications will also earn a place in the libraries of professionals and researchers working in organic, inorganic, and physical chemistry.
Download or read book Aromaticity written by Peter J. Garratt and published by Wiley-Interscience. This book was released on 1986-04-25 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Examines aromaticity through the historical and conceptual framework of simple molecular orbital theory. This approach is unique in that theoretical considerations are integrated with experimental observations. The criteria for aromatic, antiaromatic and nonaromatic compounds are discussed in with reference to benzene, cyclobutadiene and cyclooctatetraene. Also includes a chapter on the likely classes of aromatic compounds.
Book Synopsis Aromaticity, Pseudo-aromaticity, Anti-aromaticity by :
Download or read book Aromaticity, Pseudo-aromaticity, Anti-aromaticity written by and published by . This book was released on 1971 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aromaticity, Pseudo-aromaticity, Anti-aromaticity by : Ernst D. Bergmann
Download or read book Aromaticity, Pseudo-aromaticity, Anti-aromaticity written by Ernst D. Bergmann and published by . This book was released on 1971 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis AROMATICITY PSEUDO-AROMATICITY ANTI-AROMATICITY- PROCEEDINGS OF AN INTERNATIONAL SYMPOSIUM- 3RD JERUSALEM SYMPOSIUM ON QUANTUM CHEMISTRY AND BIOCHEMISTRY. by :
Download or read book AROMATICITY PSEUDO-AROMATICITY ANTI-AROMATICITY- PROCEEDINGS OF AN INTERNATIONAL SYMPOSIUM- 3RD JERUSALEM SYMPOSIUM ON QUANTUM CHEMISTRY AND BIOCHEMISTRY. written by and published by . This book was released on with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aromatic Compounds by : Heinrich Zollinger
Download or read book Aromatic Compounds written by Heinrich Zollinger and published by . This book was released on 1973 with total page 360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aromatic character and aromaticity by :
Download or read book Aromatic character and aromaticity written by and published by CUP Archive. This book was released on with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aromaticity, Pseudo-aromaticity, Anti-aromaticity by :
Download or read book Aromaticity, Pseudo-aromaticity, Anti-aromaticity written by and published by . This book was released on 1971 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Aromaticity and Antiaromaticity by : Miquel Solà
Download or read book Aromaticity and Antiaromaticity written by Miquel Solà and published by John Wiley & Sons. This book was released on 2022-12-19 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive review of the science of aromaticity, as well as its evolution, from benzene to atomic clusters In Aromaticity and Antiaromaticity: Concepts and Applications, a team of accomplished chemists delivers a comprehensive exploration of the evolution and critical aspects of aromaticity. The book examines the new global criteria used to evaluate aromaticity, including the Nucleus Independent Chemical Shift (NICS) index and the electronic indices based on electronic properties. Additional discussions of inorganic aromatic compounds developed in this century, which give rise to new concepts like multifold aromaticity, are included. Three-dimensional aromaticity found in fullerenes and nanotubes, Möbius aromaticity present in some annulenes, and excited state aromaticity are explored as well. This volume explores the geometrical, electronic, magnetic, and thermodynamic characteristics of aromatic and antiaromatic compounds and their reactivity properties. It also provides: A thorough historical overview of aromaticity, as well as simple electronic and structural models Comprehensive explorations of organic and inorganic aromatic compounds, concepts of stability and reactivity, and geometric, energetic, magnetic, and electronic criteria of descriptors of aromaticity Practical discussions of heteroaromaticity, as well as Möbius aromaticity and excited state aromaticity In-depth examinations of sigma, pi, delta, and phi aromaticity Perfect for graduate students, researchers, and academics interested in aromaticity, organometallic chemistry, and computational chemistry, Aromaticity and Antiaromaticity: Concepts and Applications will also earn a place in the libraries of professionals and researchers working in organic, inorganic, and physical chemistry.
Book Synopsis Modern Physical Organic Chemistry by : Eric V. Anslyn
Download or read book Modern Physical Organic Chemistry written by Eric V. Anslyn and published by University Science Books. This book was released on 2006 with total page 1148 pages. Available in PDF, EPUB and Kindle. Book excerpt: In additionto covering thoroughly the core areas of physical organic chemistry -structure and mechanism - this book will escortthe practitioner of organic chemistry into a field that has been thoroughlyupdated.
Book Synopsis Aromaticity, Pseudoaromaticity, Antiaromaticity by : L. D. Bergmann
Download or read book Aromaticity, Pseudoaromaticity, Antiaromaticity written by L. D. Bergmann and published by . This book was released on with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pseudo-aromaticity, Anti-aromaticity" : Proceedings of an International Symposium Held in Jerusalem, 31 March-3 April, 1970 "A. by : Bernard Pullman
Download or read book Pseudo-aromaticity, Anti-aromaticity" : Proceedings of an International Symposium Held in Jerusalem, 31 March-3 April, 1970 "A. written by Bernard Pullman and published by . This book was released on 1971 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Facts and Theories of Aromaticity by : David Lewis (Ph.D.)
Download or read book Facts and Theories of Aromaticity written by David Lewis (Ph.D.) and published by . This book was released on 1975 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aromaticity written by Marcos Mandado and published by . This book was released on 2008 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aromaticity is among the most frequently used concepts in the chemical literature. Nevertheless, it has to be stressed that aromaticity is not an observable that could be directly obtained from molecular wave function. So, it remains as a controversial concept and its physical origin is still being debated. This has lead to multiple ways for assessing the aromatic or anti-aromatic character of molecules. Thus, several indices of aromaticity have been proposed throughout the literature. It is well-known that aromaticity is strongly related to the electron delocalisation of the electrons along all the centres of the ring. The introduction of the n-order density matrix, and development of n-centre delocalisation indices (n-DIs), has provided a quantitative tool to measure electron delocalisation within a certain ring. Therefore, n-DIs can be regarded as a promising way to determine the actual role played by electron delocalisation in aromaticity. n-DIs are found to be in line with most of the qualitative trends predicted by the harmonic oscillator model of aromaticity indices, HOMAs, aromaticity indices derived from the Chemical Graph Theory, properties of the ring critical points, and circuit resonance energies. It has to be noticed that the direct comparison of n-DIs computed for rings with a different number of centers does not provide a picture of relative aromatic stabilisation. In fact, aromatic stabilisation does not only depend on the extension of the electron delocalisation over the n centres, but also on the number of centres. n-DIs dependence on the number of centres and electrons in a ring prevents to use their direct comparison as a measure of aromatic stabilisation unless an appropriate scaling is applied. Effective Scaled Electron Delocalisation indices, ESED, have been developed for comparing the total aromaticity of polyaromatic hydrocarbons. n-DIs exhibit very different behaviour for aromatic and antiaromatic hydrocarbons. Thus, an aromatic compound is one whose multicenter electron delocalisation is larger than that of the corresponding linear structure, whereas an antiaromatic compound is one where the multi-centre electron delocalisation is smaller than that of the linear molecule. Those compounds that display very small differences between linear and cyclic structures may be called non-aromatic. n-DIs are also found as a promising tool to study the aromaticity of transition states in concerted processes. This book also reports on its application to the study of the aromaticity in all metal compounds.
Book Synopsis Aromaticity by : University of Sheffield
Download or read book Aromaticity written by University of Sheffield and published by . This book was released on 1967 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:
