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  2. Quenching (fluorescence) - Wikipedia

    en.wikipedia.org/wiki/Quenching_(fluorescence)

    Dexter (also known as Dexter exchange or collisional energy transfer, colloquially known as Dexter Energy Transfer) is another dynamic quenching mechanism. [12] Dexter electron transfer is a short-range phenomenon that falls off exponentially with distance (proportional to e −kR where k is a constant that is the inverse of the sum of both van der Waals radius of the atom over 2 [13]) and ...

  3. List of unsolved problems in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    This is a list of unsolved problems in chemistry. Problems in chemistry are considered unsolved when an expert in the field considers it unsolved or when several experts in the field disagree about a solution to a problem.

  4. Adularescence - Wikipedia

    en.wikipedia.org/wiki/Adularescence

    The effect of adularescence, also commonly referred to as schiller or shiller, is best described as a milky, bluish luster or glow originating from below the surface of the gemstone. The schiller, appearing to move as the stone is turned (or as the light source is moved), gives the impression of lunar light floating on water (accounting for ...

  5. Chemical chameleon - Wikipedia

    en.wikipedia.org/wiki/Chemical_chameleon

    Chemical chameleon reaction. The chemical chameleon is a redox reaction, well known from classroom demonstrations, that exploits the dramatic color changes associated with the various oxidation states of manganese.

  6. Category:Chemistry experiments - Wikipedia

    en.wikipedia.org/wiki/Category:Chemistry_experiments

    Printable version; In other projects Wikimedia Commons; Wikidata item; ... Pages in category "Chemistry experiments" The following 9 pages are in this category, out ...

  7. Category:Chemistry classroom experiments - Wikipedia

    en.wikipedia.org/wiki/Category:Chemistry...

    This category is devoted to simple classroom experiments as part of Chemistry education. Pages in category "Chemistry classroom experiments" The following 25 pages are in this category, out of 25 total.

  8. Two-dimensional nuclear magnetic resonance spectroscopy

    en.wikipedia.org/wiki/Two-dimensional_nuclear...

    A single two-dimensional experiment is generated as a series of one-dimensional experiments, with a different specific evolution time in successive experiments, with the entire duration of the detection period recorded in each experiment. [6] The end result is a plot showing an intensity value for each pair of frequency variables.

  9. Lustre (mineralogy) - Wikipedia

    en.wikipedia.org/wiki/Lustre_(mineralogy)

    Lustre (British English) or luster (American English; see spelling differences) is the way light interacts with the surface of a crystal, rock, or mineral. The word traces its origins back to the Latin lux , meaning "light", and generally implies radiance, gloss, or brilliance.