Abstract: Different structural anthracene oligomers containing acetylene were characterized by laser desorption ionization time-of-flight mass
spectrometry (LDI-TOF-MS). The samples were dissolved in chloroform and the data were recorded by positive ion mode. LDI-TOF-MS is very effective for the analysis of the novel meatl tetraazaporphrins
including tetra-(naphthalene)-tetraazaporphyrin.