Eight novel metal diphosphonates based on 2-(4-pyridinyl)-1-hydroxyl-1,1-ethylidenediphosphonate: syntheses, structures, and magnetic properties
Ma, Yun-Sheng; Yin, Wen-Yu; Cai, Wang-Shui; Zhu, Ping-Zhou; Tang, Xiao-Yan; Yuan, Rong-Xin; Roy, Soumyajit; RSC Advances 3 (2013) 18430–; doi:10.1039/c3ra43137a

data_7239156
_publ_section_title
;
 Eight novel metal diphosphonates based on
 2-(4-pyridinyl)-1-hydroxyl-1,1-ethylidenediphosphonate: syntheses,
 structures, and magnetic properties
;
_journal_issue                   40
_journal_name_full               'RSC Advances'
_journal_page_first              18430
_journal_paper_doi               10.1039/c3ra43137a
_journal_volume                  3
_journal_year                    2013
_chemical_formula_moiety         'C16 H20 Co3 N2 O20 P4'
_chemical_formula_sum            'C16 H20 Co3 N2 O20 P4'
_chemical_formula_weight         861.01
_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_Hall  '-P 1'
_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                98.89(3)
_cell_angle_beta                 108.72(3)
_cell_angle_gamma                110.34(3)
_cell_formula_units_Z            1
_cell_length_a                   8.8776(18)
_cell_length_b                   8.9196(18)
_cell_length_c                   9.984(2)
_cell_measurement_temperature    293(2)
_cell_volume                     669.8(4)
_computing_cell_refinement       CrystalClear
_computing_data_collection       'CrystalClear (Rigaku, 2005)'
_computing_data_reduction        CrystalClear
_computing_molecular_graphics    'Bruker SHELXTL/PC (Sheldrick, 1999)'
_computing_publication_material  'Bruker SHELXTL/PC and PLATON (Spek, 2003)'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      293(2)
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_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  0.0639
_diffrn_reflns_av_sigmaI/netI    0.0786
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -10
_diffrn_reflns_limit_k_max       10
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            5637
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.40
_exptl_absorpt_coefficient_mu    2.173
_exptl_absorpt_correction_T_max  0.8120
_exptl_absorpt_correction_T_min  0.6126
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'CrystalClear (Rigaku, 2005)'
_exptl_crystal_density_diffrn    2.134
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             431
_exptl_crystal_size_max          0.25
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.10
_refine_diff_density_max         0.619
_refine_diff_density_min         -0.493
_refine_diff_density_rms         0.114
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.096
_refine_ls_hydrogen_treatment    mixed
_refine_ls_matrix_type           full
_refine_ls_number_parameters     209
_refine_ls_number_reflns         2346
_refine_ls_number_restraints     3
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.0872
_refine_ls_R_factor_gt           0.0586
_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^)+(0.0322P)^2^+1.2965P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0966
_refine_ls_wR_factor_ref         0.1042
_reflns_number_gt                1797
_reflns_number_total             2346
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            c3ra43137a.txt
_cod_data_source_block           Co-3
_cod_original_cell_volume        669.8(2)
_cod_database_code               7239156