2014年12月21日 · There are at many isomeric amides with formula C₅H₁₁NO. Here's how to draw the unsubstituted amides. If the amide is unsubstituted, it must contain a CONH₂ group. The rest of the molecule must be C₄H₉. So you draw all possible chains containing 4 carbon atoms. Then you add the CONH₂ group to every possible location on these chains. 4 C in a Row You can put the amide group on C-1 ...

Bond line notation works similarly to skeletal structure diagrams. The hydrogen atoms are ommitted while the C-C bonds are shown via lines. Double bonds and triple bonds can also be shown using two and three parallel lines, respectively.

2018年2月24日 · Here's a second method for determining the Index of hydrogen deficiency (IHD). The method compares the number of hydrogen atoms in an alkane with those in an equivalent formula for the compound.