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bromochlorofluoroiodomethane
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Diagram differentiating the right-handed molecule of bromochlorofluoroiodomethane from the left-handed version. In the Cahn-Ingold-Prelog (CIP) protocol, one first assigns priorities to the four atoms attached to the stereogenic atom, in this case the carbon at the centre of the tetrahedron. The atom with the lowest atomic number is given the lowest priority, 4. In this case that atom is the fluorine (atomic number 9). The atom with the highest atomic number, iodine (atomic number 53), gets the highest priority, 1. Chlorine (atomic number 17) is priority 3, and bromine (atomic number 35) is 2. In the second step of the protocol, one sights down the bond from carbon to the lowest priority (4). Finally, one connects atoms 1 to 2 to 3 with an arrow. If that arrow is clockwise, the molecule is called an R enantiomer. If the arrow is counterclockwise, the molecule is called an S enantiomer Testing chirality with bromochlorofluoroiodomethane (top) and dibromochlorofluoromethane (bottom). Bromochlorofluoroiodomethane cannot be superimposed on its mirror image and thus is chiral. Dibromochlorofluoromethane can be superimposed and thus is achiral.
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bromochlorofluoroiodomethane

chemical compound
Also known as: CBrClFl
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