Quasiracemate – Racemic mixture
There are four ways to crystallize a racemate; three of which H. W. B. Roozeboom had distinguished by 1899 and this is one of them. QuasiracemateA quasiracemate is a co-crystal o
In Chinese alchemy, elixir poisoning refers to the toxic effects from elixirs of immortality that contained metals and minerals such as mercury and arsenic
In Chinese alchemy, elixir poisoning refers to the toxic effects from elixirs of immortality that contained metals and minerals such as mercury a
Phototropins are part of the phototropic sensory system in plants that causes various environmental responses in plants
Phototropins are photoreceptor proteins (more specifically, flavoproteins) that mediate phototropism responses in various species of algae, fungi and higher plants. Note: F
Ommochrome (visual pigment) and Kynurenine (a metabolite of the amino acid l-tryptophan used in the production of niacin)
Ommochrome (or visual pigment) refers to several biological pigments that occur in the eyes of crustaceans and insects. The eye color i
Albert Imre Szent-Györgyi – From Transylvania to Woods Hole (Vitamin C, Fumaric Acid, WWI, WWII, Vietnam War, Actin, Myosin, Muscles, Adrenal glands, Cancer, a Nobel prize, Apollonians and Dionysians, and something called the Constitution for the Federation of Earth)
Albert Imre Szent-Györgyi[a] de Nagyrápolt (Hungarian: nagyrápolti Szent-Györgyi Albert Imre; September 16, 1893 – October 22, 1986) was a Hungarian biochemist who won
Homovanillic acid (HVC) and Vanillylmandelic acid (VMA)
Homovanillic acid (HVA) is a major catecholamine metabolite that is produced by a consecutive action of monoamine oxidase and catechol-O-methyltransferase on dopamine. Hom
Phosphopyruvate hydratase, aka enolase, is a metalloenzyme that catalyses the conversion of 2-phosphoglycerate (2-PG) to phosphoenolpyruvate (PEP), the ninth and penultimate step of glycolysis
Phosphopyruvate hydratase, usually known as enolase, is a metalloenzyme (EC 4.2.1.11) that catalyses the conversion of 2-phosphoglycerate (2-PG) to&nb
-ium
word-forming element in chemistry, used to coin element names, from Latin adjectival suffix -ium (neuter of -ius), which formed metal names in Latin (ferrum “iron,”
HCO3 (bicarbonate)
In inorganic chemistry, bicarbonate (IUPAC-recommended nomenclature: hydrogencarbonate) is an intermediate form in the deprotonation of carbonic acid. It is a polyatomic a
Baccharis is a genus of perennials and shrubs in the aster family (Asteraceae)
They are commonly known as baccharises but sometimes referred to as “brooms”, because many members have small thin leaves resembling the true brooms. They are not at
In supramolecular assembly
π systems are important building blocks in supramolecular assembly because of their versatile noncovalent interactions with various functional groups. A notable example of apply
Addition in pharmacological active compounds
Several variants of pi coordinated phenyls have even been tested using transition metals for stacking η6-phenyltropanes, using cyclopentadienyl and tricarbonyl in place of a benz
Pi stacking is prevalent in protein crystal structures and also contributes to the interactions between small molecules and proteins
As a result, pi–pi and cation–pi interactions are important factors in rational drug design. One example is the FDA-approved acetylcholinesterase (AChE) inhibitor tacrine w
A powerful demonstration of stacking is found in the buckycatcher
This molecular tweezer is based on two concave buckybowls with a perfect fit for one convex fullerene molecule. Complexation takes place simply by evaporating a toluene solut
Requirement of aromaticity
The conventional understanding of pi stacking involves quadrupole interactions between delocalized electrons in p-orbitals. In other words, aromaticity should be required for this