Search results
Results from the WOW.Com Content Network
Phthalocyanine (H 2 Pc) is a large, aromatic, macrocyclic, organic compound with the formula (C 8 H 4 N 2) 4 H 2 and is of theoretical or specialized interest in chemical dyes and photoelectricity. It is composed of four isoindole units [ a ] linked by a ring of nitrogen atoms.
It is a derivative of phthalocyanine, differing by having 4 extra carbon rings, one on each "arm." IBM Research labs used it for developing single-molecule logic switches [1] and visualizing charge distribution in a single molecule. [2] [3] Naphthalocyanine derivatives have a potential use in photodynamic cancer treatment. [4]
Approximately 25% of all artificial organic pigments are phthalocyanine derivatives. [32] Copper phthalocyanine dyes are produced by introducing solubilizing groups, such as one or more sulfonic acid functions. These dyes find extensive use in various areas of textile dyeing (Direct dyes for cotton), for spin dyeing and in the paper industry
The parent isoindole is a rarely encountered in the technical literature, but substituted derivatives are useful commercially and occur naturally. Isoindoles units occur in phthalocyanines, an important family of dyes. Some alkaloids containing isoindole have been isolated and characterized. [3] [4]
LuPc 2 and other lanthanide phthalocyanines are of interest in the development of organic thin-film field-effect transistors. [3] [5]LuPc 2 derivatives can be selected to change color in the presence of certain molecules, such as in gas detectors; [2] for example, the thioether derivative Lu[(C 6 H 13 S) 8 Pc] 2 changes from green to brownish-purple in the presence of NADH.
According to the New York Times, here's exactly how to play Strands: Find theme words to fill the board. Theme words stay highlighted in blue when found.
France's government collapsed Wednesday after Prime Minister Michel Barnier was forced out in a no-confidence vote in Parliament, reigniting a summertime political crisis for the country as it ...
AOL