Influence of O−H···OP Hydrogen Bonding on the Supramolecular Architectures of Phosphorus-Based Hydrazones: Alternate Right- and Left-Handed Fused Helical Chains Based on O−H···OP Hydrogen Bonds in the Crystal Structure of C6H5P(O)[N(CH3)NCHC6H4-p-OH]2
Chandrasekhar, Vadapalli; Azhakar, Ramachandran; Bickley, Jamie F.; Steiner, Alexander; Crystal Growth & Design 6 (2006) 910–; doi:10.1021/cg050426v

data_4504665
_publ_section_title
;
 Influence of O&#x2212;H&#x00B7;&#x00B7;&#x00B7;OP Hydrogen Bonding on the
 Supramolecular Architectures of Phosphorus-Based Hydrazones:&#x2009;
 Alternate Right- and Left-Handed Fused Helical Chains Based on
 O&#x2212;H&#x00B7;&#x00B7;&#x00B7;OP Hydrogen Bonds in the Crystal
 Structure of C6H5P(O)[N(CH3)NCHC6H4-p-OH]2
;
_journal_issue                   4
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              910
_journal_paper_doi               10.1021/cg050426v
_journal_volume                  6
_journal_year                    2006
_chemical_formula_sum            'C22 H23 N4 O3 P'
_chemical_formula_weight         422.41
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 90.886(15)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.7339(11)
_cell_length_b                   12.202(2)
_cell_length_c                   20.083(3)
_cell_measurement_temperature    213(2)
_cell_volume                     2140.0(5)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      213(2)
_diffrn_measured_fraction_theta_full 0.959
_diffrn_measured_fraction_theta_max 0.959
_diffrn_measurement_device_type  Stoe-IPDS
_diffrn_radiation_monochromator  graphite
_diffrn_radiation_source         'fine-focus sealed tube'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0438
_diffrn_reflns_av_sigmaI/netI    0.0282
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       13
_diffrn_reflns_limit_k_min       -14
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            13274
_diffrn_reflns_theta_full        24.13
_diffrn_reflns_theta_max         24.13
_diffrn_reflns_theta_min         1.95
_exptl_absorpt_coefficient_mu    0.159
_exptl_absorpt_correction_type   'not applied'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    1.311
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       prism
_exptl_crystal_F_000             888
_exptl_crystal_size_max          0.4
_exptl_crystal_size_mid          0.3
_exptl_crystal_size_min          0.2
_refine_diff_density_max         0.163
_refine_diff_density_min         -0.279
_refine_diff_density_rms         0.038
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.019
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     281
_refine_ls_number_reflns         3265
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.019
_refine_ls_R_factor_all          0.0475
_refine_ls_R_factor_gt           0.0415
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0463P)^2^+0.9369P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0914
_refine_ls_wR_factor_ref         0.0943
_reflns_number_gt                2848
_reflns_number_total             3265
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg050426vsi20060125_125302.cif
_cod_data_source_block           Compound1
_cod_original_sg_symbol_H-M      P2(1)/n
_cod_database_code               4504665