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2-Aminoindane (2-AI) is a research chemical with applications in neurologic disorders and psychotherapy that has also been sold as a designer drug. It acts as a selective substrate for NET and DAT .
Chemical bond. Covalent bonding of two hydrogen atoms to form a hydrogen molecule, H. 2. In (a) the two nuclei are surrounded by a cloud of two electrons in the bonding orbital that holds the molecule together. (b) shows hydrogen's antibonding orbital, which is higher in energy and is normally not occupied by any electrons.
Temperatures greater than 750 °C are required for fluorine, chlorine, and bromine to dissociate to a similar extent. Most bonds to iodine are weaker than the analogous bonds to the lighter halogens. Gaseous iodine is composed of I 2 molecules with an I–I bond length of 266.6 pm. The I–I bond is one of the longest single bonds known.
Ion. Electron transfer between lithium (Li) and fluorine (F). Forming an ionic bond, Li and F become Li + and F − ions. An ion ( / ˈaɪ.ɒn, - ən /) [1] is an atom or molecule with a net electrical charge. The charge of an electron is considered to be negative by convention and this charge is equal and opposite to the charge of a proton ...
trans -but-2-ene. Cis–trans isomerism, also known as geometric isomerism, describes certain arrangements of atoms within molecules. The prefixes " cis " and " trans " are from Latin: "this side of" and "the other side of", respectively. [1] In the context of chemistry, cis indicates that the functional groups (substituents) are on the same ...
Many students have misconceptions regarding the topic of chemical bonding - i.e., they have difficulties about the formation of bonding, types of chemical bonding (Ozmen, 2004), electronegativity and polar covalent bonding (Burrows & Mooring, 2015), octet rule, molecular shape and bond polarity (Nahum et al., 2010). This study
Hydrogel. Gelatin, here in sheets for cooking, is a hydrogel. Peptide hydrogel formation shown by the inverted vial method. A hydrogel is a biphasic material, a mixture of porous, permeable solids and at least 10% by weight or volume of interstitial fluid composed completely or mainly by water.
Barium iodide is an inorganic compound with the formula BaI 2. The compound exists as an anhydrous and a hydrate (BaI 2 (H 2 O) 2 ), both of which are white solids. When heated, hydrated barium iodide converts to the anhydrous salt. The hydrated form is freely soluble in water, ethanol, and acetone .