Photo Competition – Colorful Chemistry

Entry 1

Entry 2

“Visual Signatures”

Photo by Spiros Kitsinelis

The visual signatures of different gases and vapors in low-pressure discharges

“50 Shades of Cobalt”

Photo by Frank T. Edelmann

Collection of cobalt(III) complexes

 


Entry 3

Entry 4

“Curiosity”

Photo by Anastasios Papavasileiou

Maybe curiosity killed the cat—the scientist still lives with it!

“Complementary Colors”

Photo by Julia Bader

Reflection of a window frame in a flask with crystals


Entry 5

Entry 6

“Blue Vortex”

Photo by Julia Bader

Rapid stirring of a blue solution

“Gluing Colors”

Photo by Stefanie Neufeld-Busse

Acrylic paint on a mixture of glues


Entry 7

Entry 8

“Red Shadows”

Photo by B. Vlachova and A. Novotna Rychtecka

Biological samples for extraction

“Fluorescent Dyes 1”

Photo by Bernard Valeur

Fluorescent dyes slowly dissolving in a glycerol/ethanol mixture: fluorescein (yellow-green), rhodamine 101 (red), rhodamine 6G (orange), pyranine (blue), illumination by a UV-lamp


Entry 9

Entry 10

“Fluorescent Dyes 2”

 

Photo by Bernard Valeur

Fluorescent dyes slowly dissolving in a glycerol/ethanol mixture: fluorescein (yellow-green), rhodamine 101 (red), rhodamine 6G (orange), pyranine (blue), illumination by a UV-lamp

“Fluorescent Dyes 3”

 

Photo by Bernard Valeur

Fluorescent dyes slowly dissolving in a glycerol/ethanol mixture: fluorescein (yellow-green), rhodamine 101 (red), rhodamine 6G (orange), pyranine (blue), illumination by a UV-lamp


Entry 11

Entry 12

“Colorful Derivatization”

Photo by Matthias Hempe

Vials containing solutions of a series of photoluminescent emitter material derivatives for OLED applications

“Pillow Fight”

Photo by Gregory York and Alfred Y. Lee

A microscopic image of an organic cocrystal of a small molecule pharmaceutical compound; the ‘feather-like’ crystals were obtained via crystallization from the melt


Entry 13

Entry 14

 

 

“Only yoU”

Photo by Markus Zegke

Highly air- and moisture-sensitive uranium(III) (blue) and uranium(IV) (green) compounds crystallizing side-by-side in an NMR tube, seen through a microscope

“Fake Rainbow”

Photo by Norbert Kemnitzer

The mixed-up colors of the rainbow are accidentally obtained during the column chromatography of an unknown reaction product


Entry 15

Entry 16

 

 

“Wide Range – which one to choose?”

Photo by Norbert Kemnitzer

A wide range of different colored bands are obtained during the column chromatography of a fluorescent dye; additional illumination by UV-light

“Twenty Shades of Orange”

Photo by Norbert Kemnitzer

Fractions of a column chromatography


Entry 17

Entry 18

 

 

“Snow White”

Photo by Norbert Kemnitzer

Organic compound crystallizing in a fractal-like manner upon evaporation of the solvent; viewed through the neck of the round-bottom flask

“Rose Red”

Photo by Norbert Kemnitzer

Organic dye-stuff after incomplete evaporation of the solvent; viewed through the neck of the round-bottom flask, it looks like an endoscopic insight into the digestive system


Entry 19

Entry 20

 

 

“UV Argentum”

Photo by Christian Schmitz

Ag particles generated by a photochemical reaction under UV light

“Near Infrared Polymers”

Photo by Christian Schmitz

Polymerization induced by near-infrared light and green-colored absorbers


Entry 21

Entry 22

“Milky Way”

Photo by ReAcTiON team

Using colors to depict the dispersion of milk’s fatty acids due to its contact with dish soap, creating stellar-like surfaces

“Glowing for Chemistry”

Photo by Laurence Schmitz

The calcite crystal represents inorganic chemistry; the super yellow represents organic chemistry; the bright blue aesculin of the chestnut branch represents biochemistry; all together they glow for the colorful world of chemistry!


Entry 23

Entry 24

“Colorful Milk”

Photo by Laurence Schmitz

Milk with different indicators

“Hot to cold?”

Photo by Markus Plaumann

Microscopic image after crystallization of an organic substrate


Entry 25

Entry 26

“Under Construction”

Photo by Markus Plaumann

Microscopic image after crystallization of an organic dye

“Curtisin in Aceton”

Photo by Martin Bröckelmann

Dedicated to Wolfgang Steglich on the occasion of his 85th birthday (see also Eur. J. Org. Chem. 2004, 23, 4856–4863, https://doi.org/10.1002/ejoc.200400519)