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Organic Conformational Analysis And Stereochemistry From Circular Dichroism Spectroscopy

RRP $507.99

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A unique guide to variable temperature CD spectroscopy and its application in organic chemistry<br> This timely, original, thought-provoking work looks at organic stereochemistry from the perspective of circular dichroism (CD), using variable temperature CD spectroscopy to determine the conformation or absolute configuration of chiral molecules. With an emphasis on the analysis of optically active ketones and the carbonyl chromophore, the authors demonstrate the advantages of this highly sensitive spectroscopic tool for obtaining stereochemical information in diverse areas of organic chemistry, biochemistry, and medicinal/pharmaceutical chemistry. They combine detailed examples of stereochemical analysis with clear, thorough presentations, correlating chiroptical data with molecular mechanics calculations as well as data from NMR spectroscopy and other spectroscopic techniques. In addition, they provide a systematic survey of the professional literature, featuring an extraordinary collection of original CD spectra run at varying temperatures. Coverage includes:<br> * Chiroptical measurements: CD and ORD (Optical Rotatory Dispersion)<br> * Conformational analysis of compounds ranging from simple cyclic ketones to polycyclics<br> * Conjugated and homoconjugated systems<br> * Stereochemistry of the carbon-carbon double bond<br> * Stereochemistry from exciton coupling of two or more chromophores<br> * An interesting historical account of the development of stereochemical concepts


A Perspective On Stereophonic Acoustic Echo Cancellation

RRP $354.99

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Single-channel hands-free teleconferencing systems are becoming popular. In order to enhance the communication quality of these systems, more and more stereophonic sound devices with two loudspeakers and two microphones are deployed. Because of the coupling between loudspeakers and microphones, there may be strong echoes, which make real-time communication very difficult. The best way we know to cancel these echoes is via a stereo acoustic echo canceller (SAEC), which can be modelled as a two-input/two-output system with real random variables. In this work, the authors recast this problem into a single-input/single-output system with complex random variables thanks to the widely linear model. From this new convenient formulation, thay re-derive the most important aspects of a SAEC, including identification of the echo paths with adaptive filters, double-talk detection, and suppression.


Stereochemistry Research Trends

RRP $249.99

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Preface; Stereoselective Methods Towards the Synthesis of Iminosugars; Stereochemical Studies in Insect Chemistry: Synthesis and Properties of Chiral Rsesolving Agents; Stereochemistry of Aflastatin A and Blasticidin A: Application of J-based, Acetonide and NMR Database Methods.; Syntheses, Structure and Electronic Properties of Assemblies of Diastereomers of Nickel (II) Complexes with Tetracyanometalates [M(CN)4]2 (M=Ni, Pd, and Pt); (4R*, 5R*) - 4 - Benzoylamino-5-Phenyl-3-Pyrazolidinone - A Useful Building Block in the Synthesis of Functionalised Pyrazoles; Stereochemical aspects of Interaction Between some Monosaccharides and L-Alpha-Amino Acids in Aqueous Solutions; Challenges in Carbohydrate Chemistry: A Survey of Modern Approaches for L-Hexose Stereoselective Synthesis; Index.



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