From Infinite One-Dimensional Helix to Discrete CuII15 Cluster along with in Situ SN2 Ring-Cleavage of cis-Epoxysuccinic Acid: pH-Controlled Assemblies, Crystal Structures, and Properties
Shao-Ming Fang; Qiang Zhang; Min Hu; E. Carolina Sañudo; Miao Du; Chun-Sen Liu; Inorganic Chemistry 49 (2010) 9617–9626; doi:10.1021/ic101278w

data_4316821
_publ_section_title
;
 From Infinite One-Dimensional Helix to Discrete CuII15 Cluster along with
 in Situ SN2 Ring-Cleavage of cis-Epoxysuccinic Acid: pH-Controlled
 Assemblies, Crystal Structures, and Properties
;
_journal_name_full               'Inorganic Chemistry'
_journal_page_first              9617
_journal_page_last               9626
_journal_paper_doi               10.1021/ic101278w
_journal_volume                  49
_journal_year                    2010
_chemical_formula_sum            'C4 H7 Cu O7.5'
_chemical_formula_weight         238.64
_chemical_name_systematic
; 
 ? 
;
_space_group_IT_number           60
_symmetry_cell_setting           orthorhombic
_symmetry_space_group_name_Hall  '-P 2n 2ab'
_symmetry_space_group_name_H-M   'P b 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                   7.783(7)
_cell_length_b                   10.951(10)
_cell_length_c                   18.722(18)
_cell_measurement_reflns_used    3820
_cell_measurement_temperature    294(2)
_cell_measurement_theta_max      27.87
_cell_measurement_theta_min      3.21
_cell_volume                     1596(3)
_computing_cell_refinement       'SAINT (Bruker, 2007)'
_computing_data_collection       'SMART (Bruker, 2007)'
_computing_data_reduction        SAINT
_computing_molecular_graphics    'SHELXTL (Sheldrick, 2008)'
_computing_publication_material  'SHELXTL and PLATON (Spek, 2009)'
_computing_structure_refinement  'SHELXL97 (Sheldrick, 2008)'
_computing_structure_solution    'SHELXS97 (Sheldrick, 2008)'
_diffrn_ambient_temperature      294(2)
_diffrn_measured_fraction_theta_full 0.999
_diffrn_measured_fraction_theta_max 0.999
_diffrn_measurement_device_type  'Bruker SMART CCD area-detector'
_diffrn_measurement_method       '\f and \w 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  0.0236
_diffrn_reflns_av_sigmaI/netI    0.0167
_diffrn_reflns_limit_h_max       9
_diffrn_reflns_limit_h_min       -7
_diffrn_reflns_limit_k_max       12
_diffrn_reflns_limit_k_min       -13
_diffrn_reflns_limit_l_max       22
_diffrn_reflns_limit_l_min       -22
_diffrn_reflns_number            8247
_diffrn_reflns_theta_full        25.00
_diffrn_reflns_theta_max         25.00
_diffrn_reflns_theta_min         3.21
_diffrn_standards_number         0
_exptl_absorpt_coefficient_mu    2.744
_exptl_absorpt_correction_T_max  0.5965
_exptl_absorpt_correction_T_min  0.4141
_exptl_absorpt_correction_type   multi-scan
_exptl_absorpt_process_details   '(SADABS; Sheldrick, 1996)'
_exptl_crystal_colour            blue
_exptl_crystal_density_diffrn    1.987
_exptl_crystal_density_meas      ?
_exptl_crystal_density_method    'not measured'
_exptl_crystal_description       block
_exptl_crystal_F_000             960
_exptl_crystal_size_max          0.39
_exptl_crystal_size_mid          0.25
_exptl_crystal_size_min          0.21
_refine_diff_density_max         0.438
_refine_diff_density_min         -0.576
_refine_diff_density_rms         0.079
_refine_ls_extinction_coef       0.0018(4)
_refine_ls_extinction_expression Fc^*^=kFc[1+0.001xFc^2^\l^3^/sin(2\q)]^-1/4^
_refine_ls_extinction_method     SHELXL
_refine_ls_goodness_of_fit_ref   1.074
_refine_ls_hydrogen_treatment    constr
_refine_ls_matrix_type           full
_refine_ls_number_parameters     115
_refine_ls_number_reflns         1405
_refine_ls_number_restraints     0
_refine_ls_restrained_S_all      1.074
_refine_ls_R_factor_all          0.0337
_refine_ls_R_factor_gt           0.0297
_refine_ls_shift/su_max          0.001
_refine_ls_shift/su_mean         0.000
_refine_ls_structure_factor_coef Fsqd
_refine_ls_weighting_details
'calc w=1/[\s^2^(Fo^2^)+(0.0417P)^2^+3.3268P] where P=(Fo^2^+2Fc^2^)/3'
_refine_ls_weighting_scheme      calc
_refine_ls_wR_factor_gt          0.0813
_refine_ls_wR_factor_ref         0.0847
_reflns_number_gt                1267
_reflns_number_total             1405
_reflns_threshold_expression     I>2\s(I)
_cod_data_source_file            ic101278w_si_002_1.cif
_cod_data_source_block           1
_cod_depositor_comments
;
The following automatic conversions were performed:

'_symmetry_cell_setting' value 'Orthorhombic' changed to
'orthorhombic' according to the built-in table from CIF Core
dictionary named 'cif_core.dic' version 2.4.1 from 2010-06-29.

Automatic conversion script
Id: cif_fix_values 1646 2011-03-28 12:23:43Z adriana 

The following automatic conversions were performed:

'_exptl_crystal_density_meas' value 'none' was changed to '?' - the
value is perceived as not measured.

Automatic conversion script
Id: cif_fix_values 3008 2015-01-20 13:52:24Z robertas 
;
_cod_original_formula_sum        'C4 H7 Cu O7.50'
_cod_database_code               4316821