Conformational Isomerism of 1,2-Bis(imidazol-1′-yl)ethane Affected by the Orientation of Functional Carboxylate Groups in Cadmium and Cobalt Helical Coordination Polymers
Li, Xiaoju; Weng, Xiulan; Tang, Ruijie; Lin, Yuanmiao; Ke, Zhilong; Zhou, Wenbiao; Cao, Rong; Crystal Growth & Design 10 (2010) 3228–; doi:10.1021/cg100350b

data_4501745
_publ_section_title
;
 Conformational Isomerism of 1,2-Bis(imidazol-1&#x2032;-yl)ethane Affected
 by the Orientation of Functional Carboxylate Groups in Cadmium and Cobalt
 Helical Coordination Polymers
;
_journal_issue                   7
_journal_name_full               'Crystal Growth &amp; Design'
_journal_page_first              3228
_journal_paper_doi               10.1021/cg100350b
_journal_volume                  10
_journal_year                    2010
_chemical_formula_sum            'C9 H9 Cd0.5 N2 O2'
_chemical_formula_weight         233.38
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           56
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2ab 2ac'
_symmetry_space_group_name_H-M   'P c c n'
_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            8
_cell_length_a                   17.8998(17)
_cell_length_b                   7.8956(6)
_cell_length_c                   13.3048(14)
_cell_measurement_temperature    173(2)
_cell_volume                     1880.4(3)
_computing_structure_refinement  'SHELXL-97 (Sheldrick, 1997)'
_computing_structure_solution    'SHELXS-97 (Sheldrick, 1990)'
_diffrn_ambient_temperature      173(2)
_diffrn_measured_fraction_theta_full 1.000
_diffrn_measured_fraction_theta_max 1.000
_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  0.0352
_diffrn_reflns_av_sigmaI/netI    0.0207
_diffrn_reflns_limit_h_max       23
_diffrn_reflns_limit_h_min       -23
_diffrn_reflns_limit_k_max       9
_diffrn_reflns_limit_k_min       -10
_diffrn_reflns_limit_l_max       12
_diffrn_reflns_limit_l_min       -17
_diffrn_reflns_number            13411
_diffrn_reflns_theta_full        27.47
_diffrn_reflns_theta_max         27.47
_diffrn_reflns_theta_min         2.82
_exptl_absorpt_coefficient_mu    1.193
_exptl_absorpt_correction_T_max  0.9428
_exptl_absorpt_correction_T_min  0.6159
_exptl_absorpt_correction_type   multi-scan
_exptl_crystal_density_diffrn    1.649
_exptl_crystal_density_method    'not measured'
_exptl_crystal_F_000             936
_exptl_crystal_size_max          0.45
_exptl_crystal_size_mid          0.20
_exptl_crystal_size_min          0.05
_refine_diff_density_max         0.946
_refine_diff_density_min         -0.575
_refine_diff_density_rms         0.066
_refine_ls_extinction_method     none
_refine_ls_goodness_of_fit_ref   1.333
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     123
_refine_ls_number_reflns         2160
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.333
_refine_ls_R_factor_all          0.0534
_refine_ls_R_factor_gt           0.0483
_refine_ls_shift/su_max          0.000
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0280P)^2^+1.7988P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0877
_refine_ls_wR_factor_ref         0.0898
_reflns_number_gt                2013
_reflns_number_total             2160
_reflns_threshold_expression     >2sigma(I)
_cod_data_source_file            cg100350b_si_002.cif
_cod_data_source_block           d:\wrh\lxj\lxj608\l
_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 2.4.2 from 2011-04-26.

Automatic conversion script
Id: cif_fix_values 1715 2011-07-08 13:25:40Z adriana 
;
_cod_original_sg_symbol_H-M      Pccn
_cod_original_formula_sum        'C9 H9 Cd0.50 N2 O2'
_cod_database_code               4501745