Knowledge Bank

The microwave spectrum of tricycle (2.2.0.0$\mathrm{<mrow\; data-mjx-texclass="ORD">2,6</mrow>}$)hexane has been studied in the region of 8--18 GHz using a conventional microwave spectrometer and in the region of 18--40 GHz using a commercial microwave spectrometer. The interest in these studies (aside from molecular structure determination) lies in the metal ion catalyzed rearrangements that these strained molecules undergo. Also, valuable mechanistic information can be obtained from isotopic labeling. For tricyclo(2.2.0.0$\mathrm{<mrow\; data-mjx-texclass="ORD">2,6</mrow>}$) hexane the microwave spectrum consists of b- and c-type lines with the c-type being the stronger. Rotational constants for the normal species are A = 5954.07 MHz, B = 5256.39 MHz, and C = 4174.39 MHz. A mixture of mono-deuterated isotopic species has been synthesized and three of these species have been assigned. A synthetic prodecure which should yield a mixture of singly substituted $\mathrm{<mrow\; data-mjx-texclass="ORD">13</mrow>}C$ isotopic species will be $described.a$ TRICYCLO(3.1.0.0$\mathrm{<mrow\; data-mjx-texclass="ORD">2,6</mrow>})$ HEX-3-ENE