Synthesis and crystal structures of lanthanide 4-benzyloxy benzoates: influence of electron-withdrawing and electron-donating groups on luminescent properties.
Sivakumar, Sarika; Reddy, M. L. P.; Cowley, Alan H.; Vasudevan, Kalyan V.; Dalton transactions (Cambridge, England : 2003) 39 (2010) 776–786; doi:10.1039/b917256d

data_7024457
_publ_section_title
;
 Synthesis and crystal structures of lanthanide 4-benzyloxy benzoates:
 influence of electron-withdrawing and electron-donating groups on
 luminescent properties.
;
_journal_issue                   3
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              776
_journal_page_last               786
_journal_paper_doi               10.1039/b917256d
_journal_volume                  39
_journal_year                    2010
_chemical_formula_moiety         'C92 H94 O30 Tb2'
_chemical_formula_sum            'C92 H94 O30 Tb2'
_chemical_formula_weight         1997.51
_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
;
manual editing of the .cif file
created by SHELXTL Ver. 6.10
;
_cell_angle_alpha                90.00
_cell_angle_beta                 91.62(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            2
_cell_length_a                   19.359(4)
_cell_length_b                   23.771(5)
_cell_length_c                   9.4710(19)
_cell_measurement_reflns_used    7250
_cell_measurement_temperature    153(2)
_cell_measurement_theta_max      25.03
_cell_measurement_theta_min      1.00
_cell_volume                     4356.6(16)
_computing_cell_refinement       'Collect software, Nonius B.V. 1998'
_computing_data_collection       'Collect software, Nonius B.V. 1998'
_computing_data_reduction
;
DENZO and Scalepack (Otwinoski and Minor, 1997)
;
_computing_molecular_graphics    'XP SHELXTL/PC, Siemens Analytical'
_computing_structure_refinement  'XL SHELXTL/PC, Siemens Analytical'
_computing_structure_solution
;
SIR97 - Altomare A., Burla M.C., Camalli M., Cascarano G.L., Giacovazzo C.,
Guagliardi A., Moliterni A.G.G., Polidori G.,Spagna R.
;
_diffrn_ambient_temperature      153(2)
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Nonius Kappa CCD'
_diffrn_measurement_method       \w-scan
_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  0.0532
_diffrn_reflns_av_sigmaI/netI    0.0780
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       28
_diffrn_reflns_limit_k_min       -28
_diffrn_reflns_limit_l_max       11
_diffrn_reflns_limit_l_min       -11
_diffrn_reflns_number            14335
_diffrn_reflns_theta_full        25.02
_diffrn_reflns_theta_max         25.02
_diffrn_reflns_theta_min         2.01
_exptl_absorpt_coefficient_mu    1.694
_exptl_absorpt_correction_T_max  0.935
_exptl_absorpt_correction_T_min  0.904
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
'Denzo and Scalepack (Otwinoski and Minor, 1997)'
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.523
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             2032
_exptl_crystal_size_max          0.20
_exptl_crystal_size_mid          0.05
_exptl_crystal_size_min          0.04
_refine_diff_density_max         1.021
_refine_diff_density_min         -0.870
_refine_diff_density_rms         0.137
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.148
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     544
_refine_ls_number_reflns         7664
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.148
_refine_ls_R_factor_all          0.0913
_refine_ls_R_factor_gt           0.0543
_refine_ls_shift/su_max          0.028
_refine_ls_shift/su_mean         0.001
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0249P)^2^+22.0250P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1100
_refine_ls_wR_factor_ref         0.1219
_reflns_number_gt                5414
_reflns_number_total             7664
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b917256d.txt
_cod_data_source_block           sbkv168a
_cod_original_cell_volume        4356.6(15)
_cod_original_sg_symbol_Hall     -p2ybc
_cod_original_sg_symbol_H-M      P21/c
_cod_database_code               7024457