The crystal structure of the compound, Zn(II) 5,10,15,20-tetrakis(meta-methoxyphenyl)porphyrin chloroform trisolvate, [ZnT(m-OCH 3)PP]•3CHCl 3 1 reveals that it forms a weak one-dimensional chain structure through interaction between Zn of porphyrin and the oxygen atom of the methoxy group of a neighbouring porphyrin. The zinc-oxygen interaction observed in compound 1 is compared with Zn(II) 5,10,15,20-tetrakis(para-methoxyphenyl)porphyrin [ZnT(p-OCH 3)PP] 2 and Zn(II) 5,10,15,20-tetrakis(3,4,5tri-methoxyphenyl)porphyrin [ZnT(3, 4, 5-triOCH 3)PP] 3 to understand the preferred methoxy-position of interaction. The strength of the non-covalent zinc-oxygen (methoxy group of a neighboring porphyrin) interaction in compound 1 is in between that of similar interactions observed in compounds 2 and 3. The Mulliken charge analysis using theoretical calculation at the DFT level shows that the meta-methoxy oxygen has a higher probability of binding to the metal than the para-methoxy oxygen. In the presence of nucleophiles, the formation of one-dimensional chain structure stops due to the binding of the nucleophiles to the metal zinc. The photoluminescence and differential scanning calorimetric studies were also performed for compound 1.