A series of helical coordination polymers based on two racemic bis(pyridylmethylene) propane-1,2-diamine ligands: Relationship of conformations, structures and properties
Zhu, Li-Na; Deng, Zhaopeng; Huo, Li-Hua; Gao, Shan; CrystEngComm  (2019) –; doi:10.1039/C9CE01210A

data_7234807
_publ_section_title
;
 A series of helical coordination polymers based on two racemic
 bis(pyridylmethylene) propane-1,2-diamine ligands: Relationship of
 conformations, structures and properties
;
_journal_name_full               CrystEngComm
_journal_paper_doi               10.1039/C9CE01210A
_journal_year                    2019
_chemical_absolute_configuration rm
_chemical_formula_moiety         'C15 H20 Ag N4, Cl O4'
_chemical_formula_sum            'C15 H20 Ag Cl N4 O4'
_chemical_formula_weight         463.67
_space_group_crystal_system      orthorhombic
_space_group_IT_number           19
_space_group_name_Hall           'P 2ac 2ab'
_space_group_name_H-M_alt        'P 21 21 21'
_symmetry_space_group_name_Hall  'P 2ac 2ab'
_symmetry_space_group_name_H-M   'P 21 21 21'
_atom_sites_solution_hydrogens   mixed
_audit_creation_method           SHELXL-2018/3
_audit_update_record
;
2019-07-01 deposited with the CCDC.    2019-10-28 downloaded from the CCDC.
;
_cell_angle_alpha                90
_cell_angle_beta                 90
_cell_angle_gamma                90
_cell_formula_units_Z            4
_cell_length_a                   8.9927(7)
_cell_length_b                   10.6548(8)
_cell_length_c                   19.9208(11)
_cell_measurement_reflns_used    1599
_cell_measurement_temperature    295(2)
_cell_measurement_theta_max      24.4470
_cell_measurement_theta_min      3.6070
_cell_volume                     1908.7(2)
_computing_cell_refinement
;
CrysAlis Pro (Agilent, 2013)
;
_computing_data_collection
;
CrysAlis Pro (Agilent, 2013)
;
_computing_data_reduction
;
CrysAlis Pro (Agilent, 2013)
;
_computing_molecular_graphics    '(K. Brandenburg, Diamond 3.1, 2009)'
_computing_publication_material  '(K. Brandenburg, Diamond 3.1, 2009)'
_computing_structure_refinement  'SHELXL-2018/3 (Sheldrick, 2018)'
_diffrn_ambient_temperature      295(2)
_diffrn_detector_area_resol_mean 16.1954
_diffrn_measured_fraction_theta_full 0.995
_diffrn_measured_fraction_theta_max 0.995
_diffrn_measurement_device_type  'Xcalibur, Eos'
_diffrn_measurement_method       '\w scans'
_diffrn_radiation_type           MoK\a
_diffrn_radiation_wavelength     0.71073
_diffrn_reflns_av_R_equivalents  0.0255
_diffrn_reflns_av_unetI/netI     0.0461
_diffrn_reflns_Laue_measured_fraction_full 0.995
_diffrn_reflns_Laue_measured_fraction_max 0.995
_diffrn_reflns_limit_h_max       11
_diffrn_reflns_limit_h_min       -9
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       25
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            7485
_diffrn_reflns_point_group_measured_fraction_full 0.984
_diffrn_reflns_point_group_measured_fraction_max 0.980
_diffrn_reflns_theta_full        25.242
_diffrn_reflns_theta_max         27.559
_diffrn_reflns_theta_min         3.602
_diffrn_source                   'Enhance (Mo) X-ray Source'
_exptl_absorpt_coefficient_mu    1.222
_exptl_absorpt_correction_T_max  1.00000
_exptl_absorpt_correction_T_min  0.77843
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details
; 
CrysAlis Pro (Agilent, 2013)
Empirical absorption correction using spherical harmonics,
 implemented in SCALE3 ABSPACK scaling algorithm. 
;
_exptl_crystal_colour            colorless
_exptl_crystal_density_diffrn    1.614
_exptl_crystal_description       block
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.210
_exptl_crystal_size_mid          0.160
_exptl_crystal_size_min          0.130
_refine_diff_density_max         0.789
_refine_diff_density_min         -0.579
_refine_diff_density_rms         0.092
_refine_ls_abs_structure_details
;
 Flack x determined using 822 quotients [(I+)-(I-)]/[(I+)+(I-)]
 (Parsons, Flack and Wagner, Acta Cryst. B69 (2013) 249-259).
;
_refine_ls_abs_structure_Flack   0.03(3)
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.039
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     240
_refine_ls_number_reflns         4330
_refine_ls_number_restraints     48
_refine_ls_restrained_S_all      1.070
_refine_ls_R_factor_all          0.0995
_refine_ls_R_factor_gt           0.0625
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'w=1/[\s^2^(Fo^2^)+(0.0995P)^2^+0.5987P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.1633
_refine_ls_wR_factor_ref         0.1908
_reflns_Friedel_coverage         0.729
_reflns_Friedel_fraction_full    0.968
_reflns_Friedel_fraction_max     0.961
_reflns_number_gt                2743
_reflns_number_total             4330
_reflns_threshold_expression     'I > 2\s(I)'
_cod_data_source_file            c9ce01210a2.cif
_cod_data_source_block           d8109
_cod_database_code               7234807
_shelx_shelxl_version_number     2018/3
_shelx_estimated_absorpt_t_min   0.783
_shelx_estimated_absorpt_t_max   0.857
_shelx_res_checksum              16383