title: 6,8-Dichloro-N-methyl-3-nitro-4-nitro-methyl-4H-chromen-2-amine.
abstract: In the title compound, C(11)H(9)Cl(2)N(3)O(5), the dihydro-pyran ring adopts a near-half-chair conformation. The benzene ring makes a torsion angle of 5.02 (5)° with the dihydro-pyran ring. Adjacent mol-ecules are inter-linked through inter-molecular C-H⋯O, N-H⋯O and C-Cl⋯π [3.4743 (9) Å] inter-actions. The inter-molecular N-H⋯O hydrogen bond generates an R(2) (2)(12) motif, which is observed to contribute to the crystal packing stability. Moreover, the mol-ecular structure displays an S(6) motif formed by intra-molecular N-H⋯O hydrogen bonding.
authors.forename: J
authors.initials: J
authors.lastname: Muthukumaran
authors.forename: A
authors.initials: A
authors.lastname: Parthiban
authors.forename: M
authors.initials: M
authors.lastname: Kannan
authors.forename: H Surya Prakash
authors.initials: HS
authors.lastname: Rao
authors.forename: R
authors.initials: R
authors.lastname: Krishna