Mechanism of the pH-induced aggregation reaction between melamine and phosphate
Huang, Sheng Tian; Wang, Gang Lin; Li, Nian Bing; Luo, Hong Qun; RSC Advances 2 (2012) 10948–; doi:10.1039/c2ra21415f

data_7238711
_publ_section_title
;
 Mechanism of the pH-induced aggregation reaction between melamine and
 phosphate
;
_journal_issue                   29
_journal_name_full               'RSC Advances'
_journal_page_first              10948
_journal_paper_doi               10.1039/c2ra21415f
_journal_volume                  2
_journal_year                    2012
_chemical_formula_sum            'C6 H21 N12 O7 P'
_chemical_formula_weight         404.32
_space_group_IT_number           2
_space_group_name_Hall           '-P 1'
_space_group_name_H-M_alt        'P -1'
_symmetry_cell_setting           triclinic
_symmetry_space_group_name_H-M   'P -1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                78.645(9)
_cell_angle_beta                 74.258(9)
_cell_angle_gamma                71.914(9)
_cell_formula_units_Z            2
_cell_length_a                   6.830(5)
_cell_length_b                   10.633(8)
_cell_length_c                   12.576(10)
_cell_measurement_reflns_used    6048
_cell_measurement_temperature    296(2)
_cell_measurement_theta_max      25.49
_cell_measurement_theta_min      1.70
_cell_volume                     829.3(11)
_computing_cell_refinement       'SMART (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT (Bruker, 2001)'
_computing_molecular_graphics    'SHELXTL-PLUS (Sheldrick, 1990)'
_computing_publication_material  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      296(2)
_diffrn_measured_fraction_theta_full 0.978
_diffrn_measured_fraction_theta_max 0.978
_diffrn_measurement_device_type  'Bruker APEX 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  0.0350
_diffrn_reflns_av_sigmaI/netI    0.0557
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -12
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            6048
_diffrn_reflns_theta_full        25.49
_diffrn_reflns_theta_max         25.49
_diffrn_reflns_theta_min         1.70
_exptl_absorpt_coefficient_mu    0.230
_exptl_absorpt_correction_T_max  0.9299
_exptl_absorpt_correction_T_min  0.9095
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS(Sheldrick, 1996)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.619
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             424
_exptl_crystal_size_max          0.42
_exptl_crystal_size_mid          0.38
_exptl_crystal_size_min          0.32
_refine_diff_density_max         0.287
_refine_diff_density_min         -0.367
_refine_diff_density_rms         0.088
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     348
_refine_ls_number_reflns         3023
_refine_ls_number_restraints     12
_refine_ls_restrained_S_all      0.999
_refine_ls_R_factor_all          0.0711
_refine_ls_R_factor_gt           0.0498
_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^)+(0.0940P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1271
_refine_ls_wR_factor_ref         0.1516
_reflns_number_gt                2223
_reflns_number_total             3023
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c2ra21415f.txt
_cod_data_source_block           Mel-Ps
_cod_depositor_comments
;
The following automatic conversions were performed:

data item '_symmetry_cell_setting' value 'Triclinic' was changed to
'triclinic' in accordance with the
/home/saulius/struct/COD-crude-data/automatic-downloads/DataCite-retrospective/RSC/depositions/lib/dictionaries/cif_core.dic
dictionary named 'cif_core.dic' version 2.4.2 last updated on
2011-04-26.

Automatic conversion script
Id: cif_fix_values 6909 2019-04-08 15:41:33Z antanas 
;
_cod_original_cell_volume        829.2(11)
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               7238711