For this question, working is not required and will not be marked. Any hydrocarbon molecule consists of joined-up carbo...
For this question, working is not required and will not be marked. Any hydrocarbon molecule consists of joined-up carbon and hydrogen atoms, and can be represented by a connected graph in which each C has degree 4 and each H has degree 1. The subgraph of C atoms and edges between them is sometimes called the 'skeleton of the moleule. Hydrocarbon molecules with the same formula, such as CgH1s, but non-isomorphic skeletons, belong to different isomers of the compound, and the name of the isomer depends only on the graph-theoretic properties of the skeleton. Twelve of the 260 stable isomers of CgH18 have skeletons isomorphic to the graphs depicted below. For example diagram E is for 1,1-Dimethyl-2-(2-methyl-2-propanyl)cyclopropane (Prefixes meth-, eth-, prop-, but-, pent-, hex- etc count 1,2,3,4,5,6,. carbons; mono-,di- ,tri-,tetra- etc count groups; cyclo- indicates a circuit; and ending "ene" indicates parallel edges. There are intricate rules about how these are all put together, which you don't need for this question. The point is that the name exactly specifies the graph.) A: D: L61 L: Match each of the isomers of CgH18 listed below to one of the diagrams above. Links to 'official diagrams are provided. Propylcyclohexane: Diagram 3,5,5-Trimethy L-1-hexene: Diagram 4-Nonene: Diagram
For this question, working is not required and will not be marked. Any hydrocarbon molecule consists of joined-up carbon and hydrogen atoms, and can be represented by a connected graph in which each C has degree 4 and each H has degree 1. The subgraph of C atoms and edges between them is sometimes called the 'skeleton of the moleule. Hydrocarbon molecules with the same formula, such as CgH1s, but non-isomorphic skeletons, belong to different isomers of the compound, and the name of the isomer depends only on the graph-theoretic properties of the skeleton. Twelve of the 260 stable isomers of CgH18 have skeletons isomorphic to the graphs depicted below. For example diagram E is for 1,1-Dimethyl-2-(2-methyl-2-propanyl)cyclopropane (Prefixes meth-, eth-, prop-, but-, pent-, hex- etc count 1,2,3,4,5,6,. carbons; mono-,di- ,tri-,tetra- etc count groups; cyclo- indicates a circuit; and ending "ene" indicates parallel edges. There are intricate rules about how these are all put together, which you don't need for this question. The point is that the name exactly specifies the graph.) A: D: L61 L: Match each of the isomers of CgH18 listed below to one of the diagrams above. Links to 'official diagrams are provided. Propylcyclohexane: Diagram 3,5,5-Trimethy L-1-hexene: Diagram 4-Nonene: Diagram