Syntheses, crystal and electronic structures of compounds AM(PO4)2 (A = Sr, M = Ti, Sn; A = Ba, M = Sn)
Zhao, Dan; Zhang, Hao; Xie, Zhi; Zhang, Wei-Long; Yang, Song-Ling; Cheng, Wen-Dan; Dalton Transactions  (2009) 5310–5318; doi:10.1039/b822336j

data_7001617
_publ_section_title
;
 Syntheses, crystal and electronic structures of compounds AM(PO4)2 (A
 = Sr, M = Ti, Sn; A = Ba, M = Sn)
;
_journal_issue                   27
_journal_name_full               'Dalton Transactions'
_journal_page_first              5310
_journal_page_last               5318
_journal_paper_doi               10.1039/b822336j
_journal_year                    2009
_chemical_formula_sum            'O8 P2 Sn Sr'
_chemical_formula_weight         396.25
_chemical_name_common            'Strontium Tin Diphosphate'
_chemical_name_systematic
;
Strontium Tin Diphosphate
;
_space_group_IT_number           15
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-C 2yc'
_symmetry_space_group_name_H-M   'C 1 2/c 1'
_atom_sites_solution_hydrogens   none
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_method           SHELXL-97
_cell_angle_alpha                90.00
_cell_angle_beta                 115.821(11)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   16.674(14)
_cell_length_b                   5.223(4)
_cell_length_c                   8.099(6)
_cell_measurement_reflns_used    978
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      27.4835
_cell_measurement_theta_min      2.7157
_cell_volume                     634.9(9)
_computing_cell_refinement       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_collection       'CrystalClear (Rigaku Corp., 2000)'
_computing_data_reduction        'CrystalClear (Rigaku Corp., 2000)'
_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      293(2)
_diffrn_detector_area_resol_mean 14.6306
_diffrn_measured_fraction_theta_full 0.992
_diffrn_measured_fraction_theta_max 0.992
_diffrn_measurement_device_type  'Mercury70 (2x2 bin mode)'
_diffrn_measurement_method       CCD_Profile_fitting
_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  0.0273
_diffrn_reflns_av_sigmaI/netI    0.0214
_diffrn_reflns_limit_h_max       21
_diffrn_reflns_limit_h_min       -21
_diffrn_reflns_limit_k_max       6
_diffrn_reflns_limit_k_min       -5
_diffrn_reflns_limit_l_max       10
_diffrn_reflns_limit_l_min       -10
_diffrn_reflns_number            2272
_diffrn_reflns_theta_full        27.44
_diffrn_reflns_theta_max         27.44
_diffrn_reflns_theta_min         2.71
_diffrn_standards_decay_%        0
_diffrn_standards_interval_count 0
_diffrn_standards_interval_time  .
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    12.847
_exptl_absorpt_correction_T_max  1.0000
_exptl_absorpt_correction_T_min  0.6602
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   'SADABS (Sheldrick, 1996)'
_exptl_crystal_colour            Colorless
_exptl_crystal_density_diffrn    4.146
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       Prism
_exptl_crystal_F_000             728
_exptl_crystal_size_max          0.1700
_exptl_crystal_size_mid          0.1400
_exptl_crystal_size_min          0.0800
_refine_diff_density_max         0.851
_refine_diff_density_min         -0.884
_refine_diff_density_rms         0.153
_refine_ls_extinction_coef       0.0030(3)
_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   1.097
_refine_ls_hydrogen_treatment    none
_refine_ls_matrix_type           full
_refine_ls_number_parameters     58
_refine_ls_number_reflns         728
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.097
_refine_ls_R_factor_all          0.0160
_refine_ls_R_factor_gt           0.0157
_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^)+(0.0252P)^2^+0.0000P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0410
_refine_ls_wR_factor_ref         0.0411
_reflns_number_gt                719
_reflns_number_total             728
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b822336j.txt
_cod_data_source_block           SrSnP2O8
_cod_depositor_comments
;
The following automatic conversions were performed:
'_exptl_absorpt_correction_type' value 'Multi-scan' changed to
'multi-scan' 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_cell_volume        634.9(8)
_cod_original_sg_symbol_H-M      'C 2/c'
_cod_database_code               7001617