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ABSTRACT: In the asymmetric unit of the title compound, C(16)H(12)BrN(7)S, there are two crystallographically independent mol-ecules with similar conformations. Both mol-ecules are slightly twisted; the central 1,2,4-triazolo[3,4-b]-1,3,4-thia-diazine ring system makes dihedral angles of 9.65?(15) and 13.29?(15)° with the pyridine and benzene rings, respectively, in one mol-ecule, whereas the corresponding values in the other mol-ecule are 9.30?(15) and 4.84?(15)°. A weak intra-molecular C-H?N inter-action with an S(6) ring motif is observed in each mol-ecule. In the crystal, the independent mol-ecules are each linked through N-H?N hydrogen bonds and weak C-H?N interactions into ribbons along the c axis. The ribbons are further linked together by weak C-H?N, C-H?? and ?-? [centroid-centroid distances = 3.572?(2)-3.884?(2)?Å] inter-actions.

PROVIDER: S-EPMC3344618 | BioStudies |

REPOSITORIES: biostudies

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