New Cuprates Featuring Ladderlike Periodic Arrays of [Cu3O8]10-Trimeric Magnetic Nanostructures
Mo, Xunhua; Etheredge, Kristen M. S.; Hwu, Shiou-Jyh; Huang, Qun; Inorganic Chemistry 45 (2006) 3478–3480; doi:10.1021/ic060292q

data_4332365
_publ_section_title
;
 New Cuprates Featuring Ladderlike Periodic Arrays of [Cu3O8]10-Trimeric
 Magnetic Nanostructures
;
_journal_issue                   9
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              3478
_journal_page_last               3480
_journal_paper_doi               10.1021/ic060292q
_journal_volume                  45
_journal_year                    2006
_chemical_formula_sum            'Cu3 Ge3.13 Na2 O12 Si0.87'
_chemical_formula_weight         680.27
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           2
_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                102.22(3)
_cell_angle_beta                 93.26(3)
_cell_angle_gamma                87.84(3)
_cell_formula_units_Z            1
_cell_length_a                   6.1719(12)
_cell_length_b                   7.6784(15)
_cell_length_c                   5.4198(11)
_cell_measurement_temperature    298(2)
_cell_volume                     250.53(9)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      298(2)
_diffrn_measured_fraction_theta_full 0.986
_diffrn_measured_fraction_theta_max 0.986
_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  0.0211
_diffrn_reflns_av_sigmaI/netI    0.0218
_diffrn_reflns_limit_h_max       7
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -9
_diffrn_reflns_limit_l_max       6
_diffrn_reflns_limit_l_min       -6
_diffrn_reflns_number            2362
_diffrn_reflns_theta_full        25.99
_diffrn_reflns_theta_max         25.99
_diffrn_reflns_theta_min         3.31
_exptl_absorpt_coefficient_mu    15.780
_exptl_absorpt_correction_T_max  0.5709
_exptl_absorpt_correction_T_min  0.2161
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;Jacobson, R.A. REQAB, subroutine of Crystal Clear;Rigaku/MSC:
 The Woodlands, TX, 1999.
;
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    4.509
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       plate
_exptl_crystal_F_000             317
_exptl_crystal_size_max          0.14
_exptl_crystal_size_mid          0.10
_exptl_crystal_size_min          0.04
_refine_diff_density_max         0.955
_refine_diff_density_min         -0.894
_refine_diff_density_rms         0.186
_refine_ls_extinction_coef       0.009(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   1.010
_refine_ls_matrix_type           full
_refine_ls_number_parameters     100
_refine_ls_number_reflns         975
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.010
_refine_ls_R_factor_all          0.0266
_refine_ls_R_factor_gt           0.0261
_refine_ls_shift/su_max          0.014
_refine_ls_shift/su_mean         0.003
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0630P)^2^+0.6302P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0812
_refine_ls_wR_factor_ref         0.0819
_reflns_number_gt                958
_reflns_number_total             975
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            ic060292qsup1.cif
_cod_data_source_block           cd1430Na2Cu3Ge3.138(6)Si0.862(6)O12
_cod_original_sg_symbol_H-M      P-1
_cod_database_code               4332365