title: 3,4-Dibromo-2,5-bis-[(dieth-oxy-phosphor-yl)meth-yl]-1-phenyl-sulfonyl-1H-pyrrole.
abstract: In the title compound, C(20)H(29)Br(2)NO(8)P(2)S, the pyrrole ring is essentially planar, with a maximum deviation of 0.013 (3) Å for a C atom. The pyrrole ring is almost orthogonal to the sulfonyl-bound phenyl ring, with a dihedral angle 88.5 (2)°. Both P atoms exhibit distorted tetra-hedral configurations with O-P-O angles widened and O-P-C angles narrowed from the ideal tetra-hedral value. In the crystal, mol-ecules are linked into centrosymmetric dimers via C-H⋯O inter-actions, resulting in R(2) (2)(10) graph-set motifs which are further consolidated by R(2) (2)(13) graph-set ring motifs via C-H⋯O inter-actions, further resulting in chains of mol-ecules running parallel to the c axis; a phosphono O atom is involved in bifurcated hydrogen bonding. All the eth-oxy groups are disordered over two positions each with unequal site-occupancy factors.
authors: S
authors: S
authors: Karthikeyan
authors: K
authors: K
authors: Sethusankar
authors: Ganesan Gobi
authors: GG
authors: Rajeswaran
authors: Arasambattu K
authors: AK
authors: Mohanakrishnan