A series of chiral coordination polymers containing helicals assembled from a new chiral (R)-2-(4'-(4''-carboxybenzyloxy)phenoxy)propanoic acid: syntheses, structures and photoluminescent properties.
He, Wei-Wei; Yang, Jin; Yang, Yan; Liu, Ying-Ying; Ma, Jian-Fang; Dalton transactions (Cambridge, England : 2003) 41 (2012) 9737–9747; doi:10.1039/c2dt30863k

data_7019894
_publ_section_title
;
 A series of chiral coordination polymers containing helicals assembled
 from a new chiral (R)-2-(4'-(4''-carboxybenzyloxy)phenoxy)propanoic acid:
 syntheses, structures and photoluminescent properties.
;
_journal_issue                   32
_journal_name_full
'Dalton transactions (Cambridge, England : 2003)'
_journal_page_first              9737
_journal_page_last               9747
_journal_paper_doi               10.1039/c2dt30863k
_journal_volume                  41
_journal_year                    2012
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C31 H28 Cd N4 O6'
_chemical_formula_sum            'C31 H28 Cd N4 O6'
_chemical_formula_weight         664.97
_chemical_name_systematic
;
?
;
_space_group_IT_number           19
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_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                 90.00
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   7.2789(2)
_cell_length_b                   16.8823(5)
_cell_length_c                   23.5500(8)
_cell_measurement_reflns_used    5798
_cell_measurement_temperature    293(2)
_cell_measurement_theta_max      29.1403
_cell_measurement_theta_min      3.0415
_cell_volume                     2893.93(15)
_computing_cell_refinement       CrysAlis
_computing_data_collection       'CrysAlis (Oxford Diffraction, 2006)'
_computing_data_reduction        CrysAlis
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1997)'
_diffrn_ambient_temperature      293(2)
_diffrn_detector_area_resol_mean 10.0
_diffrn_measured_fraction_theta_full 0.997
_diffrn_measured_fraction_theta_max 0.997
_diffrn_measurement_device_type  'Oxford Diffraction Gemini R Ultra'
_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  0.0268
_diffrn_reflns_av_sigmaI/netI    0.0351
_diffrn_reflns_limit_h_max       8
_diffrn_reflns_limit_h_min       -8
_diffrn_reflns_limit_k_max       20
_diffrn_reflns_limit_k_min       -17
_diffrn_reflns_limit_l_max       23
_diffrn_reflns_limit_l_min       -28
_diffrn_reflns_number            11898
_diffrn_reflns_theta_full        25.03
_diffrn_reflns_theta_max         25.03
_diffrn_reflns_theta_min         3.05
_exptl_absorpt_coefficient_mu    0.805
_exptl_absorpt_correction_T_max  0.8555
_exptl_absorpt_correction_T_min  0.7883
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
;
CrysAlis (Oxford Diffraction, 2006)
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.526
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             1352
_exptl_crystal_size_max          0.31
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.20
_refine_diff_density_max         0.486
_refine_diff_density_min         -0.659
_refine_diff_density_rms         0.052
_refine_ls_abs_structure_details 'Flack H D (1983), Acta Cryst. A39, 876-881'
_refine_ls_abs_structure_Flack   -0.04(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.070
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     379
_refine_ls_number_reflns         5097
_refine_ls_number_restraints     66
_refine_ls_restrained_S_all      1.128
_refine_ls_R_factor_all          0.0412
_refine_ls_R_factor_gt           0.0367
_refine_ls_shift/su_max          0.004
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0289P)^2^+1.6679P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0750
_refine_ls_wR_factor_ref         0.0771
_reflns_number_gt                4702
_reflns_number_total             5097
_reflns_threshold_expression     >2\s(I)
_cod_data_source_file            c2dt30863k.txt
_cod_data_source_block           Compound-8
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' 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_values 1891 2012-01-12 08:04:46Z andrius 
;
_cod_original_sg_symbol_Hall     'p 2ac 2ab'
_cod_database_code               7019894
_check                           for