Synthesis and Properties of 1-[2-methyl-5-(2-methoxylphenyl)-3-thienyl]- 2-[2-methyl-6'-(diethylamino)-2-(4-cyclopent-methylene-amino-2'- hydroxyspiro (isoindoline-1, 9'-xanthen))]-3-thienyl] Perfluorocyclopentene