coronene वाक्य
उदाहरण वाक्य
मोबाइल
- Unlike coronene, dicoronylene has symmetrical fluorescence excitation and emission spectra.
- In 1932, Scholl was the first person to synthesise coronene.
- It is formed when two coronene molecules fuse.
- These larger coronene condensates are black in color.
- They both consist of a central coronene molecule surrounded by 6 fused benzene rings.
- It is very similar to coronene.
- The monograph in the Merck Index 14th edn 2006 for Coronene has the mineral form listed only as Pendletonite.
- It occurs naturally as the very rare mineral carpathite, which is characterized by flakes of pure coronene embedded in sedimentary rock.
- Thermal pyrolysis of coronene shows masses of dicoronylene and the condensed trimer, tetramer, and pentamer in the mass spectrum of the black product.
- According to in silico calculations on the following hypothetical isodesmic reactions, coronene has a somewhat higher resonance energy per pi electron ( REPE ) than benzene:
- Among his most notable achievements are the synthesis of coronene, the co-development of the Bally-Scholl synthesis, and various discoveries about polycyclic aromatic hydrocarbons.
- In the Clar sextet case, the most stable structure for coronene has only the three isolated outer sextets as fully aromatic although superaromaticity would still be possible when these sextets are able to migrate into the next ring.
- * Far-infrared spectroscopy of neutral coronene, ovalene, and dicoronylene , A . L . Mattioda, A . Ricca, J . Tucker and C . W . Bauschlicher, L . J . Allamandola, Astronom.
- It is estimated that catalytical hydrocracking produces several hundred metric tons of dicoronylene worldwide per year, making it the most prevalent large PAH . In this process, the analogous 18-ring PAH formed from coronene and ovalene ( ) is also formed in 1 % to 20 % proportions.
- The article for " Coronene " lacks all the synonyms for the mineral form of same, and the article and its talk page are enough " locked up " that I can't conveniently pass along the information there . " Dana's New Minerology " 8th edn 1997 has the mineral form under the names Karpatite, Pendletonite and Coronene only.
- The article for " Coronene " lacks all the synonyms for the mineral form of same, and the article and its talk page are enough " locked up " that I can't conveniently pass along the information there . " Dana's New Minerology " 8th edn 1997 has the mineral form under the names Karpatite, Pendletonite and Coronene only.
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