
Synthesis and Decomposition ReactionsSynthesis and Decomposition Reactions 157
8.2.2 Deuterated Thiophenes
The interlacing rule for theoretical and experimental out-of-plane
frequencies of thiophene and deuterated thiophenes was studied using
Hasse diagrams (Tomić and Živković 2009).
There are 10 deuteration patterns for thiophene. The interlacing
hierarchy of these isotopomers is shown in Fig.8.8. Here S denotes the sulfur
and D the deuterium replacing hydrogen atoms, unnoted. This hierarchy
is an example of partial ordering. Such partial orderings are usually
investigated in order to see whether various properties are in consonance
with those ...