SYNTHESIS, MOLECULAR STRUCTURE, AND MORPHOLOGICAL PROPERTIES OF DENDRITIC TETRA-2-THIENYLMETHANE

摘要

Tetrakis(5-(tri-2-thienyl)methyl-2-thienyl)methane, in which as many as 16 thiophene rings connected with five sp(3) carbon atoms, has been synthesized from tetra-2-thienylmethane in four steps. This compound can take both and glass state. Although a deformed structure is taken in the crystal, but it turns be a metastable state. The second polymorph exhibits the melting point more than 30 degrees C higher than that of the metastable state, suggesting the effective intermolecular interaction.