Inclusion of thiazyl radicals in porous crystalline materials.

The incorporation of benzodithiazolyl (BDTA) and methylbenzodithiazolyl (MBDTA) radicals into porous hybrid frameworks via gas phase diffusion revealed that inclusion appeared selective for the MIL53(Al) framework against a range of other potential hosts. Both PXRD and EPR studies are consistent with retention of a π*-π* dimer motif for BDTA in MIL53(Al)@BDTA whereas MBDTA in MIL53(Al)@MBDTA appears to be monomeric. The guests are readily released by the addition of solvent (CH(2)Cl(2)).

2-({4-[(1H-Imidazol-2-ylsulfanyl)methyl]-2,5-dimethylbenzyl}sulfanyl)-1H-imidazole.

The title compound, C(16)H(18)N(4)S(2), was prepared by the substitution reaction of two equivalents of 2-mercaptoimidazole for every bromine substituent of 1,4-bis-(bromo-meth-yl)-2,5-dimethyl-benzene. The mol-ecule is located on a crystallographic centre of inversion and therefore adopts a trans configuration with regards to the orientation of the two sulfur atoms. An inter-molecular N-H⋯N hydrogen bond forms layers of mol-ecules parallel to (03).

Methyl 4-(trimethyl-silylethyn-yl)benzoate.

The title compound, C(13)H(16)O(2)Si, was synthesized as a precursor for ethynylarene derivatives and crystallized from hexane. In the crystal structure, mol-ecules are linked by weak C-H⋯O hydrogen bonds to form chains that pack in layers in a herringbone fashion.