, 0000[@bb00]); program(s) used to solve structure: *SHELXS00* (Sheldrick, 0000[@bb00]); program(s) used to refine structure: *SHELXL00* (Sheldrick, 0000[@bb00]); molecular graphics: *ORTEPIII* (Burnett & Johnson, 0000[@bb0]), *ORTEP-0 for Windows* (Farrugia, 0000[@bb00]) and *PLATON* (Spek, 0000[@bb00]); software used to prepare material for publication: *WinGX* (Farrugia, 0000[@bb00]).  Supplementary Material ======================  Crystal structure: contains datablock(s) global, I. DOI: [00.0000/S0000000000000000/