Supramolecular assembly based on a series of meso-tetrakis( p-methoxyphenyl)porphrin complexes

Abstract

A solvothermal method was employed to directly synthesize and construct the supramolecular architectures of several complexes based on 5,10,15,20-tetrakis(4-methoxyphenyl)-21H, 23H-porphyrin (H 2TMOPP) mixed with the corresponding metal salts, including MnCl 2, Co(OAc) 2·4H 2O, NiCl 2, Cu(OAc) 2·H 2O and SnCl 4. By changing solvothermal conditions, six supramolecular architectures were assembled and their crystal structures were determined exactly by X-ray analysis. In crystal 1, the distorted Mn(III)TMOPPCl cores were constructed as a two dimension (2-D) framework with wave-liked double interpenetration texture. Crystal 2 [Co(II)TMOPP a] was with a triclinic system of P -1 space group and crystal 3 [Ni(II)TMOPP] adopted a space group of I 4(1)/a to construct a closely interdigitated packing model. Crystal 4 [Co(II)TMOPP a] was also constructed by Co(II)TMOPP cores, but it presented in a chiral space group of P 2(1)2(1)2(1). Interestingly, this chiral space group was also adopted in crystal 5 with building blocks of Cu(II)TMOPP cores. Crystal 6 was constructed by Sn(IV)TMOPPCl 2 cores to construct a one dimension hydrogen bonding “polymer” chains interlaced in its crystal architecture.