Structural trends in one and two dimensional coordination polymers of cadmium(ii) with halide bridges and pyridine-type ligands
Hu, Chunhua; Li, Qi; Englert, Ulli; CrystEngComm 5 (2003) 519–; doi:10.1039/b314522k

data_7216328
_publ_section_title
;
 Structural trends in one and two dimensional coordination polymers of
 cadmium(ii) with halide bridges and pyridine-type ligands
;
_journal_issue                   94
_journal_name_full               CrystEngComm
_journal_page_first              519
_journal_paper_doi               10.1039/b314522k
_journal_volume                  5
_journal_year                    2003
_chemical_formula_sum            'C12 H14 Cd I2 N2'
_chemical_formula_weight         552.45
_chemical_name_common
;(bis(iodo)-bis(3-methylpyridine)-cadmium(ii)) (Compound 12,
120K dataset, 12b)
;
_chemical_name_systematic
;
[bis(iodo)-bis(3-methylpyridine)-cadmium(ii)] (Compound 12, 120K dataset, 12b)
;
_space_group_IT_number           14
_symmetry_cell_setting           monoclinic
_symmetry_space_group_name_Hall  '-P 2yn'
_symmetry_space_group_name_H-M   'P 1 21/n 1'
_atom_sites_solution_hydrogens   geom
_atom_sites_solution_primary     direct
_atom_sites_solution_secondary   difmap
_audit_creation_date             30-OCT-03
_audit_creation_method           SHELXTL
_audit_update_record             ' ?'
_cell_angle_alpha                90.00
_cell_angle_beta                 100.122(3)
_cell_angle_gamma                90.00
_cell_formula_units_Z            4
_cell_length_a                   9.5708(15)
_cell_length_b                   15.222(2)
_cell_length_c                   11.3480(18)
_cell_measurement_reflns_used    12895
_cell_measurement_temperature    120(2)
_cell_measurement_theta_max      28.31
_cell_measurement_theta_min      2.26
_cell_volume                     1627.5(4)
_computing_cell_refinement       'SMART (Bruker, 2001)'
_computing_data_collection       'SMART (Bruker, 2001)'
_computing_data_reduction        'SAINT+ (Bruker, 1999)'
_computing_molecular_graphics    'PLATON (Spek, 2003)'
_computing_publication_material  'SHELXTL (Sheldrick, 1998)'
_computing_structure_refinement  'SHELXTL (Sheldrick, 1998)'
_computing_structure_solution    'SHELXTL (Sheldrick, 1998)'
_diffrn_ambient_temperature      120(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_diffrn_measurement_device_type  'Bruker SMART APEX CCD diffractometer'
_diffrn_measurement_method       'omega scans'
_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  0.0247
_diffrn_reflns_av_sigmaI/netI    0.0260
_diffrn_reflns_limit_h_max       10
_diffrn_reflns_limit_h_min       -12
_diffrn_reflns_limit_k_max       18
_diffrn_reflns_limit_k_min       -20
_diffrn_reflns_limit_l_max       15
_diffrn_reflns_limit_l_min       -14
_diffrn_reflns_number            12895
_diffrn_reflns_theta_full        28.31
_diffrn_reflns_theta_max         28.31
_diffrn_reflns_theta_min         2.26
_diffrn_standards_decay_%        0
_exptl_absorpt_coefficient_mu    5.119
_exptl_absorpt_correction_T_max  1.000000
_exptl_absorpt_correction_T_min  0.778347
_exptl_absorpt_correction_type   empirical
_exptl_absorpt_process_details   'SADABS (1996)'
_exptl_crystal_colour            colourless
_exptl_crystal_density_diffrn    2.255
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       polygon
_exptl_crystal_F_000             1016
_exptl_crystal_size_max          0.30
_exptl_crystal_size_mid          0.26
_exptl_crystal_size_min          0.23
_refine_diff_density_max         0.566
_refine_diff_density_min         -0.776
_refine_diff_density_rms         0.105
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.065
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     156
_refine_ls_number_reflns         4049
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.065
_refine_ls_R_factor_all          0.0261
_refine_ls_R_factor_gt           0.0222
_refine_ls_shift/su_max          0.002
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0239P)^2^+0.2765P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0506
_refine_ls_wR_factor_ref         0.0521
_reflns_number_gt                3659
_reflns_number_total             4049
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            b314522k.txt
_cod_data_source_block           hc248
_cod_original_sg_symbol_H-M      P21/n
_cod_database_code               7216328