Chiral molecules

Ebook "Insights into the chemistry of organic structure-directing agents in the synthesis of zeolitic materials" covers the main aspects of the use of organic molecules as structure-directing agents for the synthesis of zeolites, including first an introduction of the main concepts, then two chapters covering state-of-the-art techniques currently used to understand the structure-directing phenomenon (location of molecules by XRD and molecular modeling techniques).

255p tracanhphuonghoa1007 22-04-2024 2 2   Download

Ebook "Organic chemistry from retrosynthesis to asymmetric synthesis" connects a retrosynthetic or disconnection approach with synthetic methods in the preparation of target molecules from simple, achiral ones to complex, chiral structures in the optically pure form.

221p tracanhphuonghoa1007 22-04-2024 3 3   Download

Ebook "New frontiers in photochromism" focused not only on the above-mentioned classical subjects in photochromism, such as color changes, optical memory, and optical switches, but also on fundamental physicochemical studies and unprecedented application fields that have not yet been explored in photochromism. The latter topics include light-driven mechanical motion, photocontrol of surface wettability, metal deposition on solid materials, photocontrol of chiral properties, ultrafast decoloration dyes, and femtosecond laser experiments, among others.

297p coduathanh1122 27-03-2024 3 1   Download

Ebook "New organocatalytic strategies for the selective synthesis of centrally and axially chiral molecules" discusses the use of asymmetric organic catalysis for the direct enantioselective synthesis of complex chiral molecules, and by addressing the many aspects of both vinylogy and atropisomerism, it appeals to researchers and scholars interested in both areas. Organocatalysis is a relatively modern and “hot” topic in the chemical community; it is constantly expanding and its use has been extended to interesting areas like vinylogous reactivity and atropisomerism.

173p coduathanh1122 27-03-2024 4 1   Download

Ebook "Chirality and life: A short introduction to the early phases of chemical evolution" presents the fascinating formation of the first simple bioorganic molecules and describes the hidden aspects of chiral compounds, which raise questions on the molecular beginnings of life. The occurrences of extraterrestrial, non-standard amino acids in meteorites are dealt with in detail, as well as their subsequent transfer to proteinogenic amino acids.

66p tachieuhoa 28-01-2024 3 2   Download

Prostereoisomerism (PIM), representing a subgroup within the achiral class of molecules, is manifested in a chiral environment. Although this is regardless of the orientation of the prostereoisomeric (PIC) molecule, PIM is manifested most emphatically in relation to a chiral surface (‘two-dimensional chirality’). Then PIM is tantamount to ‘de facto chirality’ as attachment of the PIC molecule to the surface leads to diastereomeric possibilities (cf. Ogston’s hypothesis).

11p langthannam 29-12-2021 6 0   Download

(bq) part 1 book "organic chemistry" has contents: covalent bonding and shapes of molecules; alkanes and cycloalkanes, stereoisomerism and chirality, acids and bases; alkenes: bonding, nomenclature and properties; reactions of alkenes; nucleophilic substitution and b elimination,... and other contents.

713p bautroibinhyen20 06-03-2017 44 6   Download

(bq) part 1 book "organic chemistry" has contents: covalent bonding and shapes of molecules; alkanes and cycloalkanes, stereoisomerism and chirality, acids and bases; alkenes: bonding, nomenclature and properties; reactions of alkenes; nucleophilic substitution and b-elimination,... and other contents.

623p bautroibinhyen20 06-03-2017 72 8   Download

(bq) part 1 book "organic chemistry" has contents: the basics bonding and molecular structure; families of carbon compounds functional groups, intermolecular forces, and infrared (ir) spectroscopy; an introduction to organic reactions and their mechanisms acids and bases; an introduction to organic reactions and their mechanisms acids and bases,... and other contents.

496p bautroibinhyen20 06-03-2017 41 5   Download

(BQ) Part 1 of the document Study guide and solutions manual to accompany organic chemistry presents the following contents: The basics-bonding and molecular structure; families of carbon compounds-functional groups, intermolecular forces, and infrared (IR) spectroscopy; acids and bases-an introduction to organic reactions and their mechanisms; stereochemistry-chiral molecules,...

352p thangnamvoiva3 28-06-2016 60 5   Download

In this chapter, we study the three-dimensional structures of molecules to understand their stereochemical relationships. We compare the various types of stereoisomers and study ways to differentiate among stereoisomers. In future chapters, we will see how stereochemistry plays a major role in the properties and reactions of organic compounds.

48p tangtuy02 11-03-2016 84 6   Download

Stereoisomers, chirality, Examples of Handed Objects, Chirality in Molecules, Absolute Configuration, Properties of Enantiomers, Biological Discrimination,... As the main contents of the document "Stereochemistry". Invite you to consult.

37p nguyenphong201 07-12-2015 40 4   Download

Chirality is a phenomenon that is manifested throughout the natural world, ranging from fundamental particles through the realm of molecules and biological organisms to spiral galaxies. Thus, chirality is of interest to physicists, chemists, biologists, and astronomers. Chiroptical spectroscopy utilizes the differential response of chiral objects to circularly polarized electromagnetic radiation. Applications of chiroptical spectroscopy are widespread in chemistry, biochemistry, biology, and physics. It is indispensable for stereochemical elucidation of organic and inorganic molecules.

0p hotmoingay 03-01-2013 49 6   Download

Chirality plays a major role in biological processes, and the enantiomers of a bioactive molecule often possess different biological effects. For example, all pharmacological activity may reside in one enantiomer of a molecule, or enantiomers may have identical qualitative and quantitative pharmacological activity. In some cases, enantiomers may have qualitatively similar pharmacological activity, but different quantitative potencies.

65p bigbaby87 03-09-2010 85 15   Download