N,N',N'',N'''-Tetrakis(2-methylphenyl)-oxybis(phospho-nic diamide): a redetermination at 150?K with Mo K? radiation.

ABSTRACT: The structure of the title compound, C(28)H(32)N(4)O(3)P(2), has been redetermined at 150?K, with much improved precision. The structure and mol-ecular packing of the title compound was previously determined using Cu K? radiation, with an R value of 0.0933 [Cameron et al. (1978 ?). Z. Naturforsch. Teil B, 33, 728-730]. The c-axis length in this structure [13.8401?(8)?Å] is almost half that reported in the original study. In the title compound, two (C(6)H(4)(2-CH(3))NH)(2)P(O) units are bridged via an O atom [P-O-P = 133.31?(11)°]. The P atoms adopt a slightly distorted tetra-hedral coordination geometry. In the crystal, mol-ecules are linked via N-H?OP hydrogen bonds into extended chains parallel to the c axis. An intra-molecular N-H?O=P hydrogen bond is also found in the mol-ecule.

SUBMITTER: Pourayoubi M 

PROVIDER: S-EPMC3051449 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature