Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Chemical compound
Picene is a hydrocarbon found in the pitchy residue obtained in the distillation of peat tar and of petroleum. This is distilled to dryness and the distillate repeatedly recrystallized from cymene. It may be synthetically prepared by the action of anhydrous aluminium chloride on a mixture of naphthalene and 1,2-dibromoethane, or by distilling a-dinaphthostilbene. It crystallizes in large colorless plates which possess a blue fluorescence. It is soluble in concentrated sulfuric acid with a green color. Chromic acid in glacial acetic acid solution oxidizes it to picene-quinone, picene-quinone carboxylic acid, and finally to phthalic acid.
When intercalated with potassium or rubidium and cooled to below 18 K, picene has been reported to exhibit superconductive properties.[3] However, due to the apparent inability to reproduce this work,[4] the superconducting nature of doped picene has been met with heavy scepticism.[5]
Picene is also a major constituent of the hydrocarbon mineral idrialite.
^Merck Index, 11th Edition, 7368.
^Nomenclature of Organic Chemistry : IUPAC Recommendations and Preferred Names 2013 (Blue Book). Cambridge: The Royal Society of Chemistry. 2014. p. 206. doi:10.1039/9781849733069-FP001. ISBN 978-0-85404-182-4.
Picene is a hydrocarbon found in the pitchy residue obtained in the distillation of peat tar and of petroleum. This is distilled to dryness and the distillate...
North Picene, also known as North Picenian or Northern Picene, is a supposed ancient language, which may have been spoken in part of central-eastern Italy...
South Picene (also known as Paleo-Sabellic, Mid-Adriatic or Eastern Italic) is an extinct Italic language belonging to the Sabellic subfamily. It is apparently...
colonists, although this is doubted by more recent scholars, who see the South Picenes at least as more closely related to the Sabellians. The Piceni did not...
South Picene, and other Indo-European branches such as Venetic) originally used the alphabet. Faliscan, Oscan, Umbrian, North Picene, and South Picene all...
of a Picene warrior, dated to around the 6th century BC. The statue was found in the territory of the Vestini, but depicts a man with a Picene helmet...
province. It may refer to: North Picene language (It.: Piceno Settentrionale), an extinct language of ancient Italy. South Picene language (It.: Piceno Meridionale)...
of Osco-Umbrian languages such as Oscan, Umbrian, Old Sabine and South Picene (Old Volscian). This sign was introduced in Etruscan around 600-550 BC and...
societario: le quote di Distretti Ecologici passano a Cedibi". Cronache Picene (in Italian). Retrieved 15 May 2024. "Michael Hartono". Forbes. Retrieved...
(the closest to Latin), Umbrian and Oscan (or Osco-Umbrian), and South Picene. Other Indo-European languages once spoken in the peninsula whose inclusion...
*kup-i-, which may reflect *kup-ei- ('to desire'; cf. Umbrian cupras, South Picene kuprí). The latter ultimately stems from the Proto-Indo-European verbal...
connected alphabets for the Etruscan, Oscan, Umbrian, Messapian, South Picene, Raetic, Venetic, Lepontic, Camunic languages Old Permic (also called Abur) –...
sul Senio. In the province of Pesaro and Urbino of Marche region, Gallo-Picene is spoken, but its status as sub-variant of Romagnol or as separate language...
that settled there, such as the Celts, the Etruscans, the North Picenes, the South Picene, the Umbri, the Latins, the Romans, the Byzantines and the Lombards...
also home to a dialect of the Emilian-Romagnol language known as Gallo-Picene, separate from one spoken in the Province of Pesaro and Urbino.[citation...
The undeciphered North Picene, also written in a form of the Old Italic alphabet, is probably not closely unrelated to South Picene. At present, it is generally...
John (2000). Languages in Contact. Rodopi. p. 329. ISBN 9042013222. "South Picene - MultiTree". LINGUIST List. Archived from the original on 9 March 2015...
Old Italic (Etruscan, Oscan, Umbrian, Faliscan, Messapic, North and South Picene) Kharosthi Classical Latin Medieval Latin Linear B Old Nordic Medieval Nordic...
Celtic artefacts such as swords and scabbards of the La Tène type in the Picene necropolises of Numana, Arcevia, Camerano and San Filippo di Osimo. Their...
atoms in the two extremal rings. This effect also causes distortion of picene. Adding another benzene ring to form dibenzo[c,g]phenantrene creates steric...
Dibenz[a,h]anthracene Dibenz[a,j]anthracene Pentacene Pentaphene [Wikidata] Picene This set index page lists chemical structure articles associated with the...
influences stretching from the Po Valley to Campania. Raeti Camunni North Picenes - Centered on the Adriatic Coast with settlements around the region of...
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