of the above measurement and calculation is summarized in the following table 1 that lists the count of hydrogen atoms eliminated it was considered that the o carborane supercluster produced in this example was formed by the o carborane molecules linked with covalent bonds by way of the b u2014 b b u2014 c or c u2014 c bond judging from the above described count of the eliminated hydrogen atoms the o carborane superclusters m 2 3 4 produced in this example was constituted with the use of the one dimensional chain link of fig5 a or the three dimensional close packed link of fig5 b if it was supposed that each of the o carborane superclusters contains the link of fig5 a or fig5 b the count of the eliminated hydrogen atoms was calculated as the respective numbers shown in table 1 the calculated values are approximately equal to the measured values respectively except for the case of the dimer m 2 moreover if the supercluster has the linear link of fig5 a it will have high strain energy since the link of fig4 is simple there is no reason that the tetramer m 4 is particularly highly stable on the other hand if the supercluster has the three dimensional link of fig5 b the tetramer m 4 may be made particularly highly stable this is because if the tetramer has a regular tetrahedron structure where the centers of the four carborane molecules are located at.