solvent polarity
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Solvent — For other uses, see Solvent (disambiguation). A solvent (from the Latin solvō, “I loosen, untie, I solve”) is a liquid, solid, or gas that dissolves another solid, liquid, or gaseous solute, resulting in a solution that is soluble in a certain… … Wikipedia
Chemical polarity — Polar molecule and Nonpolar redirect here. For other uses see Polar (disambiguation). A water molecule, a commonly used example of polarity. The two charges are present with a negative charge in the middle (red shade), and a positive charge at… … Wikipedia
Protic solvent — In chemistry a protic solvent is a solvent that has a hydrogen atom bound to an oxygen as in a hydroxyl group or a nitrogen as in an amine group. More generally, any molecular solvent which contains dissociable H+, such as hydrogen fluoride, is… … Wikipedia
Solubility — Soluble redirects here. For the algebraic object called a soluble group , see Solvable group. Solubility is the property of a solid, liquid, or gaseous chemical substance called solute to dissolve in a solid, liquid, or gaseous solvent to form a… … Wikipedia
Solvatochromism — is the ability of a chemical substance to change color due to a change in solvent polarity. Negative solvatochromism corresponds to hypsochromic shift, positive solvatochromism corresponds to bathochromic shift with increasing solvent polarity.… … Wikipedia
Cheletropic reaction — Pericyclic Reactions Cheletropic reactions are a type of pericyclic reaction. A pericyclic reaction is one that involves a transition state with a cyclic array of atoms and an associated cyclic array of interacting orbitals. A reorganization of σ … Wikipedia
Chromism — In chemistry, chromism is a process that induces a change, often reversible, in the colors of compounds. In most cases, chromism is based on a change in the electron states of molecules, especially the π or d electron state, so this phenomenon is … Wikipedia
Ultraviolet-visible spectroscopy — or ultraviolet visible spectrophotometry (UV/ VIS) involves the spectroscopy of photons in the UV visible region. It uses light in the visible and adjacent near ultraviolet (UV) and near infrared (NIR) ranges. In this region of the… … Wikipedia
Ultraviolet–visible spectroscopy — Beckman DU640 UV/Vis spectrophotometer. Ultraviolet visible spectroscopy or ultraviolet visible spectrophotometry (UV Vis or UV/Vis) refers to absorption spectroscopy or reflectance spectroscopy in the ultraviolet visible spectral region. This… … Wikipedia
Christian Reichardt — (* 16. November 1934 in Ebersbach Sachsen) ist ein deutscher Chemiker und ehemaliger Professor für Organische Chemie an der Philipps Universität Marburg. Von 1953 1954 übte Reichardt eine Tätigkeit als Lehrassistent für Chemie an der Fachschule… … Deutsch Wikipedia
Cation-pi interaction — is a noncovalent molecular interaction between the face of an electron rich pi system (e.g. benzene, ethylene) with an adjacent cation (e.g. Li+, Na+). This unusual interaction is an example of noncovalent bonding between a monopole (cation) and… … Wikipedia