Nuclear magnetic resonance

Cobalt is a chemical element; it has symbol Co and atomic number 27. As with nickel, cobalt is found in the Earth's crust only in a chemically combined form, save for small deposits found in alloys of natural meteoric iron. The free element, produced by reductive smelting, is a hard, lustrous, somewhat brittle, gray metal.

Swiss physicist (1905-1983)

American physicist (1912-1997)

Swiss physical chemist and Nobel laureate (1933–2021)

Swiss chemist (born 1938)

American chemist (1929–2007)

English physicist known for magnetic resonance imaging

energy difference between the quantum spin states of electrons when exposed to an external magnetic field

thumb |right |Helium vector magnetometer (HVM) of the Pioneer 10 and 11 spacecraft

thumb|alt=The nucleus is depicted by two red circles with inscribed plus symbols and one purple circle with no inscription. Around the nucleus there is a black ring - a symbol of an electron shell. On it are two teal circles with inscribed minus symbols, depicting electrons.|Diagram of a Helium-3 atom Helium-3 (3He see also helion) is a light, stable isotope of helium with two protons and one neutron (in contrast to the more common isotope, helium-4, which has two protons and two neutrons.) Helium-3 and hydrogen-1 are the only stable nuclides with more protons than neutrons. It was discovered

energy range in a solid where no electron states can exist

ratio of magnetic dipole moment to total angular momentum

Physical phenomenon

deuterium isotopologue of chloroform, used as an NMR solvent

formal constraint on the possible transitions of a system from one quantum state to another

response of spin to electromagnetic radiation

Israeli-born American chemist (1945–2024)

analytical method

chemical compound

phenomenon in nuclear magnetic resonance spectroscopy

chemical compound

chemical analysis technique

In nuclear chemistry and nuclear physics, '''J-couplings (also called spin-spin coupling or indirect dipole–dipole coupling') are mediated through chemical bonds connecting two spins. It is an indirect interaction between two nuclear spins that arises from hyperfine interactions between the nuclei and local electrons. In NMR spectroscopy, J-coupling contains information about relative bond distances and angles. Most importantly, J''-coupling provides information on the connectivity of chemical bonds. It is responsible for the often complex splitting of resonance lines in the NMR spectra of fai

physical phenomenon

equations describing nuclear magnetic resonance

in nuclear magnetic resonance and magnetic resonance imaging, the way signals change with time

nuclear spin polarization of a material in a magnetic field far beyond thermal equilibrium

acquisition of NMR spectra of chemicals

laboratory glassware

effect observed in aromatic molecules

the correlation between ³J-coupling constants and dihedral torsion angles in nuclear magnetic resonance spectroscopy

analytical technique

In stereochemistry, topicity is the stereochemical relationship between substituents and the structure to which they are attached. Depending on the relationship, such groups can be heterotopic, homotopic, enantiotopic, or diastereotopic.

Pulse program

Dutch biophysicist

TRISPHAT (full name tris(tetrachlorocatecholato)phosphate(1−)) is an inorganic anion with the formula often prepared as the tributylammonium () or tetrabutylammonium ( salt. The anion features phosphorus(V) bonded to three tetrachlorocatecholate () ligands. This anion can be resolved into the axially chiral enantiomers, which are optically stable (the picture shows the Δ enantiomer).

chemistry subfield

CIDNP (chemically induced dynamic nuclear polarization), often pronounced like "kidnip", is a nuclear magnetic resonance (NMR) technique that is used to study chemical reactions that involve radicals. It detects the non-Boltzmann (non-thermal) nuclear spin state distribution produced in these reactions as enhanced absorption or emission signals.

proposed spin-based quantum computer implementation

is a technique for characterizing atomic level structure in solid materials

magnetic phenomenon

technique used in NMR spectroscopy

spectroscopy technique for molecules containing phosphorus