Crystallization of phosphomolybdate clusters mediated by copper azole complexes: Influence of pH and temperature
Jency Thomas; Dinesh Kumar; Arunachalam Ramanan; Inorganica Chimica Acta 396 (2013) 126–135; doi:10.1016/j.ica.2012.10.034

data_1513005
_publ_section_title
;
 Crystallization of phosphomolybdate clusters mediated by copper azole
 complexes: Influence of pH and temperature
;
_journal_name_full
;
Inorganica Chimica Acta
;
_journal_page_first              126
_journal_page_last               135
_journal_paper_doi               10.1016/j.ica.2012.10.034
_journal_volume                  396
_journal_year                    2013
_chemical_formula_moiety         'C12 H16 Cu2 Mo5 N8 O23 P2, 3(C3 H5 N2)'
_chemical_formula_sum            'C21 H31 Cu2 Mo5 N14 O23 P2'
_chemical_formula_weight         1516.34
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b c n'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_cell_angle_alpha                90.00
_cell_angle_beta                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   8.8032(15)
_cell_length_b                   23.534(4)
_cell_length_c                   20.553(4)
_cell_measurement_reflns_used    19524
_cell_measurement_temperature    298(2)
_cell_measurement_theta_max      25.41
_cell_measurement_theta_min      2.14
_cell_volume                     4258.1(13)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_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  0.0981
_diffrn_reflns_av_sigmaI/netI    0.0772
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       26
_diffrn_reflns_limit_k_min       -24
_diffrn_reflns_limit_l_max       24
_diffrn_reflns_limit_l_min       -24
_diffrn_reflns_number            18344
_diffrn_reflns_theta_full        24.99
_diffrn_reflns_theta_max         24.99
_diffrn_reflns_theta_min         1.99
_exptl_absorpt_coefficient_mu    2.580
_exptl_absorpt_correction_T_max  0.686
_exptl_absorpt_correction_T_min  0.464
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Bruker, 2000)'
_exptl_crystal_colour            Brown
_exptl_crystal_density_diffrn    2.365
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Rod
_exptl_crystal_F_000             2948
_exptl_crystal_size_max          0.325
_exptl_crystal_size_mid          0.248
_exptl_crystal_size_min          0.148
_refine_diff_density_max         1.021
_refine_diff_density_min         -1.642
_refine_diff_density_rms         0.203
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.211
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     304
_refine_ls_number_reflns         3752
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.211
_refine_ls_R_factor_all          0.1123
_refine_ls_R_factor_gt           0.0893
_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^)+(0.0395P)^2^+72.5918P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1565
_refine_ls_wR_factor_ref         0.1656
_reflns_number_gt                2987
_reflns_number_total             3752
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ICA-2013-396-126-135-4.cif
_cod_data_source_block           4
_cod_database_code               1513005