Structure and reactivity of tautomeric forms of zwitterionic species from the reaction of phosphorus(iii) compounds with electron deficient alkenes and alkynes
Bhuvan Kumar, N. N.; Chakravarty, Manab; Kumara Swamy, K. C.; New Journal of Chemistry 30 (2006) 1614–; doi:10.1039/b605430g

data_7052304
_publ_section_title
;
 Structure and reactivity of tautomeric forms of zwitterionic species
 from the reaction of phosphorus(iii) compounds with electron deficient
 alkenes and alkynes
;
_journal_issue                   11
_journal_name_full               'New Journal of Chemistry'
_journal_page_first              1614
_journal_paper_doi               10.1039/b605430g
_journal_volume                  30
_journal_year                    2006
_chemical_formula_sum            'C20 H42 N4 O2 P2'
_chemical_formula_weight         432.52
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2ybc'
_symmetry_space_group_name_H-M   'P 1 21/c 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                 112.8700(10)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   18.0981(11)
_cell_length_b                   9.9666(6)
_cell_length_c                   16.1701(9)
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      24.62
_cell_measurement_theta_min      2.49
_cell_volume                     2687.4(3)
_computing_cell_refinement       'Bruker SMART'
_computing_data_collection       'Bruker SMART'
_computing_data_reduction        'Bruker SAINT'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'CCD area detector'
_diffrn_measurement_method       'phi and omega scans'
_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  0.0329
_diffrn_reflns_av_sigmaI/netI    0.0247
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       11
_diffrn_reflns_limit_k_min       -11
_diffrn_reflns_limit_l_max       19
_diffrn_reflns_limit_l_min       -19
_diffrn_reflns_number            25186
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         2.38
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 'not applicable'
_diffrn_standards_interval_time  'not applicable'
_diffrn_standards_number         'not applicable'
_exptl_absorpt_coefficient_mu    0.182
_exptl_absorpt_correction_T_max  0.9543
_exptl_absorpt_correction_T_min  0.9326
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS, Sheldrick (1996)'
_exptl_crystal_colour            brown
_exptl_crystal_density_diffrn    1.069
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plates
_exptl_crystal_F_000             944
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.31
_exptl_crystal_size_min          0.26
_refine_diff_density_max         0.427
_refine_diff_density_min         -0.254
_refine_diff_density_rms         0.054
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.064
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     270
_refine_ls_number_reflns         4730
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.064
_refine_ls_R_factor_all          0.0842
_refine_ls_R_factor_gt           0.0629
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1186P)^2^+0.8680P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1824
_refine_ls_wR_factor_ref         0.2011
_reflns_number_gt                3447
_reflns_number_total             4730
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b605430g.txt
_cod_data_source_block           compd3
_cod_depositor_comments
;
The following automatic conversions were performed:
'_symmetry_cell_setting' value 'Monoclinic' changed to 'monoclinic'
according to '/home/saulius/struct/CIF-dictionaries/cif_core.dic'
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_enum 1527 2010-12-29 10:47:43Z saulius 
;
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7052304