Functionalized higher diamondoids

A functionalized higher diamondoid of formula II

• D—L—(D)n II
• wherein
• n is 1 or more such as 1 to 10 and especially 1 to 4.
• D is a higher diamondoid nucleus;
• and
• L is a linking group selected from the group consisting of —N═C—N—,
• 20
• wherein R28, R29, R30, R31, R32 and R33 are independently selected from the group consisting of hydrogen and alkyl and R34, R35, R36, and R37 are independently absent or selected from the group consisting of hydrogen and alkyl, with the proviso that at least one of R34, R35, R36, and R37 are present, and n and m are independently from 2 to 20.

The functionalized higher diamondoid of formula III

• R38—D—D—R39 III
• wherein
• D is a higher diamondoid nucleus;
• and
• R38 and R39 are substituents on the higher diamondoid nucleus and are independently selected from the group consisting of hydrogen;
• halo;
• cyano;
• arylalkoxy;
• aminoalkyl;
• and —COOR40 wherein R40 is hydrogen or alkyl.