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This is a list of plantation great houses in Jamaica.These houses were built in the 18th and 19th centuries when sugar cane made Jamaica the wealthiest colony in the West Indies. [1] Sugar plantations in the Caribbean were worked by enslaved African people [ 2 ] until the aboltion of slavery in 1833.
Pyrrole is an extremely weak base for an amine, with a conjugate acid pK a of −3.8. The most thermodynamically stable pyrrolium cation (C 4 H 6 N +) is formed by protonation at the 2 position. Substitution of pyrrole with alkyl substituents provides a more basic molecule—for example, tetramethylpyrrole has a conjugate acid pK a of +3.7.
Polypyrrole Pyrrole can be polymerised electrochemically. [1] Polypyrrole (PPy) is an organic polymer obtained by oxidative polymerization of pyrrole. It is a solid with the formula H(C 4 H 2 NH) n H. It is an intrinsically conducting polymer, used in electronics, optical, biological and medical fields. [2] [3]
Arsole, also called arsenole [1] or arsacyclopentadiene, is an organoarsenic compound with the formula C 4 H 5 As. It is classified as a metallole and is isoelectronic to and related to pyrrole except that an arsenic atom is substituted for the nitrogen atom.
They’re having themselves a cheesy little Christmas. A New Jersey deli is crafting 2-foot-tall ravioli Christmas trees — and they’re fry-ing off the shelf.
Corroles can be prepared by a two-step process, beginning with the condensation reaction of a benzaldehyde with pyrrole. The open-ring product, a bilane (or tetrapyrrane), is cyclized by oxidation, typically with p-chloranil: [1] Corrole synthesis
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Olena Ruban/Getty Images. 4. Incompatible: Taurus and Aquarius. The zodiac’s bull is stable and predictable, especially in matters of the heart.That can spell romance and reliability for some ...