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Three guests with two moiety probes for different Cucurbit[n = 6—8]urils have been synthesized. They are N-(2-methylenethiophen)-adamataneamine, N-(2-methylene pyrrole)- adamataneamine and N-(2-methylenefurfuran)-adamataneamine. The probes are methyle-nepyridyl typically for Q[6] and adamataneamine typically for Q[7]. The host-guest complexes of Cucurbit[n = 6—8]urils with these guests have been investigated by using NMR techniques and ESMS method. Also, thermoanalysis has been used for exploring relationship of enthalpy and stability of the host-guest complexes.
They are N- (2-methylenethiophen) -adamataneamine, N- (2-methylene pyrrole) -adamataneamine and N- (2-methylenefurfuran ) -adamataneamine. The probes are methyle-nepyridyl typically for Q [6] and adamataneamine typically for Q [7]. The host-guest complexes of Cucurbit [n = 6-8] urils with these guests have been investigated by using NMR techniques and ESMS method. Also, thermoanalysis has been used for exploring relationship of enthalpy and stability of the host-guest complexes.