MH2P2O7 (M = Co, Ni): Metamagnetic Interaction between the Zigzag Octahedral Chains
Tao Yang; Jing Ju; Guobao Li; Sihai Yang; Junliang Sun; Fuhui Liao; Jianhua Lin; Juns Sasaki; Naoki Toyota; Inorganic Chemistry 46 (2007) 2342–2344; doi:10.1021/ic061665q

data_4307142
_publ_section_title
;
MH2P2O7 (M = Co, Ni): Metamagnetic Interaction between the Zigzag
Octahedral Chains
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              2342
_journal_page_last               2344
_journal_paper_doi               10.1021/ic061665q
_journal_volume                  46
_journal_year                    2007
_chemical_formula_sum            'Co2 H4 O14 P2'
_chemical_formula_weight         469.77
_chemical_name_systematic
;
 ?
;
_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                 106.74(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.1658(18)
_cell_length_b                   12.681(3)
_cell_length_c                   9.6882(19)
_cell_measurement_temperature    290(2)
_cell_volume                     1078.4(4)
_computing_cell_refinement       'MSC/AFC Diffractometer Control'
_computing_data_collection       'MSC/AFC Diffractometer Control'
_computing_data_reduction        'teXsan (MSC, 1992-1997)'
_computing_molecular_graphics    'Bruker SHELXTL'
_computing_publication_material  'Bruker SHELXTL'
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'Bruker SHELXTL'
_diffrn_ambient_temperature      290(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Rigaku AFC6S'
_diffrn_measurement_method       \w-2\q
_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  0.1455
_diffrn_reflns_av_sigmaI/netI    0.0230
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       0
_diffrn_reflns_limit_k_max       15
_diffrn_reflns_limit_k_min       0
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            2134
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.50
_diffrn_reflns_theta_min         2.32
_exptl_absorpt_coefficient_mu    3.753
_exptl_absorpt_correction_T_max  0.737
_exptl_absorpt_correction_T_min  0.512
_exptl_absorpt_correction_type   psi-scan
_exptl_crystal_colour            purple
_exptl_crystal_density_diffrn    2.894
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             920
_exptl_crystal_size_max          0.3
_exptl_crystal_size_mid          0.15
_exptl_crystal_size_min          0.08
_refine_diff_density_max         1.329
_refine_diff_density_min         -1.565
_refine_diff_density_rms         0.197
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_extinction_coef       0.014(2)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.000
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     182
_refine_ls_number_reflns         2005
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.000
_refine_ls_R_factor_all          0.0521
_refine_ls_R_factor_gt           0.0454
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.1620P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1665
_refine_ls_wR_factor_ref         0.1831
_reflns_number_gt                1716
_reflns_number_total             2005
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic061665qsi20061118_081106_1.cif
_cod_data_source_block           CoP2O5(OH)2
_cod_original_cell_volume        1078.3(4)
_cod_database_code               4307142
_database_code_depnum_csd_archive 'CSD 416090'