Crystal structure of catena-bis(hydrogen 5-tert-butylisophthalato)- [2,5-bis(4-pyridyl)-1,3,4-thiadiazole]zinc(II) —2,5-bis(4-pyridyl)- 1,3,4-thiadiazole (1:1), Zn(C12H13O4)2(C12H8N4S) · C12H8N4S - Xu Ya-Zhou (De Gruyter, 2010)