2). Fosfomycin, the only phosphonate antibiotic available in the market (at least until 2019), was originally isolated and characterized from cultures of Streptomyces fradiae in 1969 and is now chemically synthesized. It is primarily used as a treatment of urinary infections.11 Several natural ...
Question: Matter can exist as either molecules or as network matter. What is the difference between them? Could their chemical formulas be represented differently? Chemical Bonds: Chemical bonds are the forces that hold the atoms...
metal–metal bonds [28], Cotton and colleagues defined the parameter “formal shortness ratio”, FSR, for a bond A–B as follows: FSR(AB) = d(A–B)/(R1A + R1B), where d(A–B) is the experimental intermetallic separation and R1A and R1B are the single-bond radii of atoms A ...
if the universe that we live in goes on forever, there are only so many ways that the building blocks of matter can arrange themselves as they assemble across infinite space. Eventually, any finite number of particle types must repeat a particular arrangement. Hypothetically, in a big enough s...
As long as there is a balanced connection, any structure of matter can exist. There are already three known substances made solely from carbon atoms, and there must be unknown carbon-based substances as well. Why can the same element form different substances? Because as long as there is a...
On the atomic level, the excessive heat involved in keeping these bulbs illuminated results in tungsten atoms changing from solid-state to gaseous vapor over time. This causes the filament to thin as mass is removed from it. Not only that, but this thinning is not uniform over the filament,...
no, theres still distance, as in the fact that the atoms in my body are not in contact with some other body, and that some fixed amount of atoms could possibly fit inbetween. the idea of a meter and that "this is 4 meters 2 cm apart" ...
However, both isolated products 9 and 10 have different melting points, IR and 1H-NMR data than the unknown compound depicted by Venkanna et al. [19] as N-1-medoxomil impurity 10. It may be assumed that the compound described by these Authors exists in a different crystalline form. Then ...