The Fischer projection is an early solution to the problem of drawing 3-dimensional molecules on a 2-dimensional page. Think of a light source illuminating a 3-dimensional object that casts a shadow on a flat surface. If these objects are always arranged in a consistent way, we...
Re: How to Calculate NMR Signals « Reply #6 on: December 05, 2010, 06:04:48 AM » For 16 - ethyl 3-pentyl ether, I think there will be actually two signals where you have indicated 1 for environment 2, consider diastereotopic protons. Can you draw a Newman projection or simila...
Bromine is the priority and the hydrogen is number four. Carbon “a” is connected to one oxygen and two hydrogens. Carbon “b” is connected to one oxygen and one hydrogen. However, because of thedouble bond, carbon “b” is treatedas ifit is connected totwo oxygens. The same rule i...
Nature Communications volume 13, Article number: 7292 (2022) Cite this article 4738 Accesses 23 Citations 7 Altmetric Metrics details Abstract Rh(I)-catalyzed cycloisomerizations of bicyclo[1.1.0]butanes provide a fruitful approach to cyclopropane-fused heterocycles. Products and stereochemical outcome ...
In the context of the SMBH candidate SgrA* at the Galactic Center and the large number of achievable and potential observables, the conceptual strategy laid out in Sect. 3 and depicted in Fig. 3 is not trivial. If several combinations of necessary conditions may lead to a convincing stateme...
ALL_EARS@UoS is a patient and public involvement and engagement (PPIE) group for people with lived experience of hearing loss. The purpose of the group is to share experiences of hearing loss and hearing healthcare, inform research and improve services f
So the string is still ultimately playable. If you picture something like a double bass string, obviously quite thick, quite big, if you were just relying on a piece of solid steel, for example, to get it up to the pitch required, it would be so thick, it would be almost unplayable ...
(2) the probability that a given increase in social and economic activity in the general population will lead to a substantial growth in cases over the coming weeks, and (3)—with regards to travel and border reopening—the number of introduced cases and their likely impact in the destination...
Question: How many chirality centres are present in the cholesterol derivative below? (Indicate on the molecule the presence of any chiral centres.) Chirality Center: A carbon atom that is bonded to four unique atoms or sets of atoms is ...
Spin, Projection, and Blame-Shifting A Narcissist Taking Responsibility? Never. Why is it so hard to hold psychopathic abusers accountable? There is a silent epidemic happening right under our noses: the epidemic of narcissistic abuse. People are experiencing it in their homes and in the workplac...